SIST EN 300 019-2-3 V3.1.1:2026

• Abstract:

  The present document specifies test severities and methods for the verification of the required resistibility of equipment according to the relevant environmental class.; The tests in the present document apply to stationary use of equipment at weatherprotected locations covering the environmental conditions stated in ETSI EN 300 019-1-3 [1].

• Status: Published
• Public Enquiry End Date: 29-Sep-2026
• Publication Date: 20-Oct-2026
• ICS: 19.040 - Environmental testing
• ICS: 33.050.01 - Telecommunication terminal equipment in general
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 19-Oct-2026
• Due Date: 24-Dec-2026
• Completion Date: 21-Oct-2026
• Ref Project: ETSI EN 300 019-2-3 V3.1.1 (2026-10) - Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 2: Specification of environmental tests; Sub-part 3: Stationary use at weatherprotected locations

SIST EN 300 019-2-3 V3.1.1:2027 is an ETSI European Standard for environmental engineering of telecommunications equipment. It specifies environmental test severities and test methods for equipment intended for stationary use at weatherprotected locations, so manufacturers and test labs can verify that equipment matches the environmental class it is designed for.

What does SIST EN 300 019-2-3 V3.1.1:2027 specify?

SIST EN 300 019-2-3 V3.1.1:2027 specifies how to test telecommunications equipment for stationary use at weatherprotected locations against the environmental conditions associated with that use. It is built around the environmental classes in ETSI EN 300 019-1-3 and gives the corresponding test severities and methods.

The document is organized into a general section on environmental test specifications, a section on earthquake testing, and two informative annexes. Clause 4 covers the climatic and mechanical tests for classes 3.10, 3.10E, 3.11 and 3.12, while clause 5 covers earthquake test requirements when a customer specifies them.

Annex	What it covers
Annex A	A possible method to evaluate the impact of corrosion due to dust, including a dust test condition, a follow-up corrosion test, pass criteria, and a chamber schematic
Annex B	Bibliography

What are the key requirements of SIST EN 300 019-2-3 V3.1.1:2027?

SIST EN 300 019-2-3 V3.1.1:2027 requires equipment to be tested in its operational state throughout the specified conditions unless stated otherwise. It also requires the input and load conditions to be chosen for full utilization of the equipment under test, with heat dissipation maximized except in the low-temperature steady-state case.

General testing rules

• The equipment is tested in the in-use configuration. In practice, that means the test setup should reflect how the product is actually installed and operated, not a simplified laboratory arrangement.
• Performance criteria A, B, C and D are defined for the tests in clause 4. Criterion A requires normal function before, during and after the test. Criterion B requires normal function before and after the test, while monitoring during the test is not required. Criterion C allows temporary loss of function during the test, but the equipment must recover without replacement of components, manual rebooting or human intervention. Criterion D applies to the enclosure and requires no corrosion traces or deterioration at the end of the test.
• The document ties each environmental class to named IEC test methods such as cold, dry heat, change of temperature, damp heat, vibration, low air pressure and water tests. This matters because it gives a shared test language for qualification and supplier agreements.

What class 3.10 covers

SIST EN 300 019-2-3 V3.1.1:2027 defines class 3.10 for temperature-controlled enclosed locations having no humidity control, and class 3.10E for exceptional operating conditions. Clause 4.3 uses climatic tests for cold, dry heat, temperature change, damp heat and low air pressure, and it also notes how solar and heat radiation are treated.

For class 3.10, the document also points out that chemically active substances are handled through design consideration rather than a specific test, and that mechanically active substances are below the level that would justify a test. In practice, designers need to consider corrosion and dust effects at the design stage even when no direct test is specified.

What class 3.11 covers

SIST EN 300 019-2-3 V3.1.1:2027 defines class 3.11 for enclosed locations having no temperature or humidity control, but where heating may be used to avoid low temperatures. Clause 4.4 adds condensation, dripping water, and wind-driven rain-related conditions to the climatic picture, and it keeps the same core vibration approach used in the other classes.

This class also uses the same general rule that certain chemically active substances are not tested directly but must be considered in design. For a reader, that means enclosure design, drainage, materials selection and corrosion protection are part of the qualification strategy, not just the chamber tests.

What class 3.12 covers

SIST EN 300 019-2-3 V3.1.1:2027 defines class 3.12 for locations having neither temperature nor humidity control. Clause 4.5 extends the environmental severity again, including lower temperature exposure and wind-driven rain in the climatic set.

Like class 3.11, class 3.12 relies on design consideration for chemically active substances and mechanically active substances rather than a separate mandatory test. The practical effect is that the equipment design has to tolerate the environment first, then the test confirms that it still works as intended.

What the mechanical tests require

SIST EN 300 019-2-3 V3.1.1:2027 uses random vibration testing for classes 3.10, 3.11 and 3.12. Clause 4 specifies the test as a broad-band random vibration method in IEC 60068-2-64, with the equipment mounted in the in-use position and its function monitored during the test.

This is important for installation and support design. Cables, fixings, brackets and enclosure mounts need to survive vibration as installed, not just as bare equipment on a bench.

What the earthquake section adds

SIST EN 300 019-2-3 V3.1.1:2027 adds an earthquake test specification in clause 5 when a customer requires it. The document calls for a preliminary vibration response investigation to find the lowest resonant frequency of the mounted specimen, using either sine sweep or random testing.

The earthquake test itself uses a time-history method with a required response spectrum (RRS) and a zero period acceleration (ZPA) profile. The test setup must represent the worst case for weight and stiffness, and the document recommends single-axis excitation while allowing multi-axis excitation if needed. In practice, this means the test result depends heavily on how the product is mounted and what support structure it uses in service.

What terms does SIST EN 300 019-2-3 V3.1.1:2027 define?

• Acceleration Spectral Density (ASD) - A way to describe random vibration severity as acceleration level over frequency, used in the vibration tests.
• Hydrogen Fluoride (HF) - One of the chemically active substances listed for environmental consideration.
• Printed Circuit Board (PCB) - A board that can be affected by dust, humidity and corrosion effects discussed in the document.
• Root Mean Square (RMS) - A statistical measure used with vibration values, including the RMS acceleration noted in the vibration clauses.
• Required Response Spectrum (RRS) - The spectrum used in the earthquake test to define the required seismic response.
• Zero Period Acceleration (ZPA) - A reference acceleration used in the earthquake test specification.

Who uses SIST EN 300 019-2-3 V3.1.1:2027?

SIST EN 300 019-2-3 V3.1.1:2027 is used by telecommunications equipment manufacturers, environmental test laboratories, compliance engineers, quality managers and buyers who need a common basis for environmental qualification. It is relevant when designing equipment, planning qualification testing, setting supplier requirements or checking that a product matches the intended installation environment.

It is also useful for teams that need to document operating conditions, test configuration and pass criteria for products installed in weatherprotected buildings or shelters.

What changed in SIST EN 300 019-2-3 V3.1.1:2027 from the previous edition?

The document history shows this publication as V3.1.1, following V3.1.0 in July 2026. The history also records the earlier ETS 300 019-2-3 and the later V2.x publications.

Which standards are used with SIST EN 300 019-2-3 V3.1.1:2027?

The main normative companion is ETSI EN 300 019-1-3, which classifies the environmental conditions for stationary use at weatherprotected locations. The document also relies on IEC 60068 test methods for cold, dry heat, temperature change, damp heat, vibration, low air pressure, water and time-history vibration, plus ISO 9223 for corrosivity classification.

The informative references ETSI EN 300 019-1-0 and ETSI EN 300 019-2-0 provide background and an overview of the wider ETSI environmental engineering series. ISO 9226 is cited as a helpful guide for determining corrosion losses of standard specimens.

What does the SIST EN 300 019-2-3 V3.1.1:2027 document contain?

The document contains test tables for climatic and mechanical conditions in classes 3.10, 3.10E, 3.11 and 3.12. It also contains notes that explain how to apply the methods, when a separate test is not recommended, and when design consideration is expected instead of direct testing.

Clause 5 contains the earthquake test setup, the vibration response investigation, the RRS-based test condition and a figure for the required response spectrum. Annex A provides a possible dust-corrosion method with a chamber schematic, and Annex B lists background references for further reading.

Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)

EUROPEAN STANDARD
Environmental Engineering (EE);
Environmental conditions and environmental tests
for telecommunications equipment;
Part 2: Specification of environmental tests;
Sub-part 3: Stationary use at weatherprotected locations

2 Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)

Reference
REN/EE-017016
Keywords
environment, testing
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ETSI
3 Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 7
3.1 Terms . 7
3.2 Symbols . 7
3.3 Abbreviations . 7
4 Environmental test specifications . 7
4.0 General . 7
4.1 Equipment setup and configuration . 8
4.2 Performance criteria . 8
4.3 Specifications T 3.10 and T 3.10E: Temperature-controlled enclosed locations having no humidity
control . 9
4.4 Specification T 3.11: Enclosed locations having no temperature or humidity control . 15
4.5 Specification T 3.12: Locations having neither temperature nor humidity control . 18
5 Earthquake test specification . 23
5.0 General . 23
5.1 Vibration response investigation . 23
5.2 Test conditioning . 24
Annex A (informative): Impact of corrosion due to dust . 26
A.0 General . 26
A.1 Test condition . 26
A.1.0 Introduction . 26
A.1.1 Dust test condition . 26
A.1.2 Corrosion test . 26
A.1.3 Pass criteria . 26
A.2 Schematic Diagram of Suspension Dust Test Chamber . 27
Annex B (informative): Bibliography . 29
History . 30

ETSI
4 Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)
Intellectual Property Rights
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Foreword
This draft European Standard (EN) has been produced by ETSI Technical Committee Environmental Engineering (EE),
and is now submitted for the combined Public Enquiry and Vote phase of the ETSI EN Approval Procedure (ENAP).
The present document is part 2, sub part 3 of a multi-part deliverable covering the classification of environmental
conditions and environmental tests for telecommunications equipment, as identified below:
Part 1: "Classification of environmental conditions"; (see note 1)
Part 2: "Specification of environmental tests": (see note 2)
Sub-part 0: "Introduction";
Sub-part 1: "Storage";
Sub-part 2: "Transportation";
Sub-part 3: "Stationary use at weatherprotected locations";
Sub-part 4: "Stationary use at non-weatherprotected locations";
Sub-part 5: "Ground vehicle installations";
Sub-part 6: "Ship environments";
Sub-part 7: "Portable and non-stationary use";
Sub-part 8: "Stationary use at underground locations".
NOTE 1: Specifies different standardized environmental classes covering climatic and biological conditions,
chemically and mechanically active substances and mechanical conditions during storage, transportation
and in use.
ETSI
5 Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)
NOTE 2: Specifies the recommended test severities and test methods for the different environmental classes.

Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 6 months after doa

Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
6 Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)
1 Scope
The present document specifies test severities and methods for the verification of the required resistibility of equipment
according to the relevant environmental class.
The tests in the present document apply to stationary use of equipment at weatherprotected locations covering the
environmental conditions stated in ETSI EN 300 019-1-3 [1].
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found in the
ETSI docbox.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI EN 300 019-1-3 (V3.1.1) (2026): "Environmental Engineering (EE); Environmental
conditions and environmental tests for telecommunications equipment; Part 1: Classification of
environmental conditions; Sub-part 3: Stationary use at weatherprotected locations".
[2] IEC 60068-2-1:2025: "Environmental testing - Part 2-1: Tests - Test A: Cold".
[3] Void.
[4] IEC 60721-3-3:2019: "Classification of environmental conditions - Part 3-3: Classification of
groups of environmental parameters and their severities - Stationary use at weatherprotected
locations".
[5] IEC 60068-2-6:2007: "Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal)".
[6] IEC 60068-2-2:2025: "Environmental testing - Part 2-2: Tests - Test B: Dry heat".
[7] IEC 60068-2-14:2023: "Environmental testing - Part 2-14: Tests - Test N: Change of temperature".
[8] IEC 60068-2-78:2025: "Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady
state".
[9] IEC 60068-2-30:2025: "Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic
(12 h + 12 h cycle)".
[10] IEC 60068-2-64:2008+AMD1:2019: "Environmental testing - Part 2-64: Tests - Test Fh:
Vibration, broadband random and guidance".
[11] Void.
[12] IEC 60068-2-57:2013: "Environmental testing - Part 2-57: Tests - Test Ff: Vibration -
Time-history and sine-beat method".
[13] IEC 60068-2-68:1994: "Environmental testing - Part 2-68: Tests - Test L: Dust and sand".
[14] IEC 60068-2-13:2021: "Environmental testing - Part 2-13: Tests - Test M: Low air pressure".
[15] IEC 60068-2-18:2017: "Environmental testing - part 2-18: Tests - Test R and guidance: Water".
ETSI
7 Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)
[16] ISO 9223:2012: "Corrosion of metals and alloys — Corrosivity of atmospheres — Classification,
determination and estimation".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents may be useful in implementing an ETSI deliverable or add to the reader's
understanding, but are not required for conformance to the present document.
[i.1] ETSI EN 300 019-1-0: "Environmental Engineering (EE); Environmental conditions and
environmental tests for telecommunications equipment; Part 1-0: Classification of environmental
conditions; Introduction".
[i.2] ETSI EN 300 019-2-0: "Environmental Engineering (EE); Environmental conditions and
environmental tests for telecommunications equipment; Part 2: Specification of environmental
tests; Sub-part 0: Introduction".
[i.3] ISO 9226:2012: "Corrosion of metals and alloys — Corrosivity of atmospheres — Determination
of corrosion rate of standard specimens for the evaluation of corrosivity".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the terms given in ETSI EN 300 019-1-0 [i.1] apply.
3.2 Symbols
Void.
3.3 Abbreviations
Void.
4 Environmental test specifications
4.0 General
The equipment shall be tested in its operational state throughout the test conditions described in the present document.
The detailed descriptions of the environmental conditions are given in clauses 4 and 5 of ETSI EN 300 019-1-3 [1].
ETSI EN 300 019-2-0 [i.2] forms a general overview of part 2 of this multi-part deliverable.
ETSI
8 Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)
4.1 Equipment setup and configuration
The equipment shall be tested in its operational state throughout the test conditions described in the present document
unless otherwise stated. Input and load conditions of the equipment shall be chosen to obtain full utilization of the
equipment under test. The heat dissipation shall be maximized, except for the steady state, low temperature test, where
it shall be minimized.
4.2 Performance criteria
The following performance criteria shall apply in tests defined by the present document.
Performance criterion A:
The equipment shall function according to the manufacturer specifications before, during and after the tests. No
degradation of performance or loss of function is allowed below the performance level specified by the manufacturer
when the equipment is used as intended. If the minimum performance level is not specified by the manufacturer, then
this may be deduced from the product description and documentation and what the user may reasonably expect from the
equipment if used as intended.
Performance criterion B:
The equipment shall function according to the manufacturer specifications before and after the tests. During the test it is
not required to monitor the equipment functionality. No degradation of performance or loss of function is allowed
below the performance level specified by the manufacturer when the equipment is used as intended. If the minimum
performance level is not specified by the manufacturer, then this may be deduced from the product description and
documentation and what the user may reasonably expect from the equipment if used as intended.
Performance criterion C:
The equipment shall function according to the manufacturer specifications before and after the tests. No degradation of
performance or loss of function is allowed below the performance level specified by the manufacturer when the
equipment is used as intended. If the minimum performance level is not specified by the manufacturer, then this may be
deduced from the product description and documentation and what the user may reasonably expect from the equipment
if used as intended. During the application of the test, temporary loss of function is allowed but after the test the
equipment shall restore to the normal functionality without replacement of components, manual rebooting or human
intervention. The equipment shall sustain the test without permanent structural or mechanical damage.
Performance criterion D:
This performance criterion applies to the enclosure of the equipment. No corrosion traces (e.g. rust) or deterioration of
the enclosure shall occur at the end of the test.
ETSI
9 Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)
4.3 Specifications T 3.10 and T 3.10E: Temperature-controlled enclosed locations having no
humidity control
Specification T 3.10: Temperature-controlled enclosed locations having no humidity control - normal operating conditions.
The specification in table 1, table 2 and table 3 shall apply to temperature-controlled enclosed locations where humidity is usually not controlled.
Table 1: Test specification T 3.10: Temperature-controlled enclosed locations - climatic tests
Environmental parameter Environmental Environmental test specification T 3.10: In-use,
Class 3.10 Temperature-controlled enclosed locations
Type Parameter Detail parameter Characteristic Test Duration Reference Method Performance Notes
severity severity criteria
Low (°C) +5 +5 16 h IEC 60068-2-1 [2] Ab/Ad/Ae: Cold A 1
High (°C) +40 +40 or +50 16 h IEC 60068-2-2 [6] Bb/Bd/Be: Dry heat A 2
Air
(°C) +5 to+40 2 cycles IEC 60068-2-14 [7] Nb: Change of A 3
temperature
Change
(°C/min) 0,5 0,5 t = 3 h temperature
low (%) 5 None   4
high (%) 85 85 4 d IEC 60068-2-78 [8] Cab: Damp heat A 5
Relative
(°C) +30 steady state
Humidity
condensation No None
1 None   4
low (g/m )
Absolute
25 None   7
high (g/m )
low (kPa) 70 70 2 h IEC 60068-2-13 [14] Test M: Low air A 8
pressure
Pressure
Air
high (kPa) 106 None   8
Speed (m/s) 1,0 None   4
Intensity No None
Rain
low temperature No None
Other No None
Water
sources
Icing & No None
frosting
Solar 700 None   9
(W/m )
Radiation
Heat 600 None   10
(W/m )
ETSI
10 Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)
Environmental parameter Environmental Environmental test specification T 3.10: In-use,
Class 3.10 Temperature-controlled enclosed locations
Type Parameter Detail parameter Characteristic Test Duration Reference Method Performance Notes
severity severity criteria
[16] None   11
SO (mg/m )
Sulphur
[16] None   11
HS (mg/m )
salt mist [16] None   11
[16] None   11
Chlorine Cl (mg/m )
Chemically
[16] None   11
HCI (mg/m )
active
[16] None   11
NO (mg/m )
x
substances
Nitrogen
[16] None   11
NH (mg/m )
Hydrogen [16] None   11
(mg/m )
fluoride HF
Ozone O [16] None   11
(mg/m )
sedimentation 6   12
Mechanically
Dust (mg/(m d))
active
no None
suspension (mg/m )
substances
no None
Sand
(mg/m )
Micro organisms negligible
Flora and
fauna Rodents, insects negligible
ETSI
11 Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)
Environmental parameter Environmental Environmental test specification T 3.10: In-use,
Class 3.10 Temperature-controlled enclosed locations
Type Parameter Detail parameter Characteristic Test Duration Reference Method Performance Notes
severity severity criteria
NOTE 1: (Air temperature, low).
The equipment under test shall remain operational throughout this test (without any damage or deterioration of performance, according to product specification).
If a cold start up test is performed, the characteristic severity should be used as a cold start up temperature, but it may be modified (within the class characteristic
severity range) by the product specification. In this case, the cold start up test shall commence once low temperature stability is achieved.
NOTE 2: (Air temperature, high).
The equipment under test shall remain operational throughout this test (without any damage or deterioration of performance, according to product specification).
If two test temperatures are given, the lower test temperature applies if the equipment is protected against solar and heat radiation or the equipment is ventilated
(natural or forced). The higher test temperature includes the heating effects of solar and/or heat radiation. If a high temperature start up test is performed, the
characteristic severity should be used as a high start up temperature, but it may be modified (within the class characteristic severity range) by the product
specification. In this case, the high temperature start up test shall commence once high temperature stability is achieved.
NOTE 3: (Air temperature, change).
The change of temperature test is normally used to check design tolerance. IEC 60068-2-14 [7] Test Nb shall be used. For change of temperature of 0,5 °C/min,
the cooling gradient may be reduced to 0,2 °C/min where test chamber restrictions preclude a gradient of 0,5 °C/min.
NOTE 4: (Relative humidity, low).
There is no IEC 60068-2 series test method for this parameter.
NOTE 5: (Humidity, relative, high).
IEC 60068-2-78 [8] Test Cab shall be used with test values not higher than climatogram limits for this class.
NOTE 6: Void.
NOTE 7: (Humidity, absolute, high).
This effect is considered to be partly included in the damp heat test IEC 60068-2-78 [8] Test Cab.
NOTE 8: (Air pressure, low and high).
No test is recommended for normal applications, because the effect of air pressure is evaluated at the component level. For sealed products or for products
containing liquids, test M is recommended.
NOTE 9: (Radiation, solar).
The higher test temperature as described in note 2 includes the heating effect of solar radiation. Photochemical tests can be made separately for components
and materials.
NOTE 10: (Radiation, heat).
The higher test temperature as described in note 2 includes the heating effect.
NOTE 11: (Chemically active substances).
The characteristic severities are given in ISO 9223 [16]. For the chemically active substances, no specific tests are defined but they should be considered in the
design phase. The following references provide guidance for the design:
- ISO 9223:2012 [16]: this can be used to calculate the corrosion losses of standard metals.
- ISO 9226:2012 [i.3]: this can be used to determine corrosion losses of standard specimens.
NOTE 12: (Mechanically active substances).
The characteristic severities are much lower than lowest test severity in IEC 60068-2-68 [13] Test L and therefore no test is recommended. This condition should
be considered when designing the equipment and when choosing components and materials.

ETSI
12 Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)
Table 2: Test specification T 3.10: Temperature-controlled enclosed locations having no humidity control - mechanical tests
Environmental parameter Environmental Environmental test specification T 3.10: In-use,
Class 3.10 Temperature-controlled enclosed locations
Type Parameter Detail Characteristic Test severity Duration Reference Method Performance Notes
parameter severity criteria
2 2
Vibration Random acceleration spectral 0,01 30 minutes in IEC 60068-2-64 [10] Test Fh: A See note
0,01 (m/s ) /Hz
2 2
each Vibration,
density ((m/s ) /Hz)
direction broadband
5 Hz to 100 Hz
Frequency (Hz) 5 to 200
random
Shocks Shocks No
acceleration (m/s )
NOTE: (Vibration, random).
The test severity values are not specified in IEC 60068-2 series. The maximum test frequency has been reduced to 100 Hz, because between 100 Hz and 200 Hz
the contribution is insignificant.
Also at low and high frequency ends the ASD is reduced by 12 dB/octave.

Classes: 3.11/3.12
Acceleration RMS
1,06 m/s
(for information only)
Equipment under test shall be mounted in the "in-use" position. The equipment function shall be monitored throughout the test.

ETSI
13 Draft ETSI EN 300 019-2-3 V3.1.0 (2026-07)
Specification T 3.10E: Temperature-controlled enclosed locations having no humidity control - exceptional operating conditions.
The specification in table 3 shall apply to temperature-controlled enclosed locations where humidity is usually not controlled. The reference class is the same as for T 3.10, but
with extended temperature and humidity ranges.
Table 3: Test specification T 3.10E: Temperature-controlled enclosed locations, exceptional operating conditions - climatic tests
Environmental parameter Environmental Environmental test specification T 3.10E: In-use,
Conditio
...

EUROPEAN STANDARD
Environmental Engineering (EE);
Environmental conditions and environmental tests
for telecommunications equipment;
Part 2: Specification of environmental tests;
Sub-part 3: Stationary use at weatherprotected locations

2 ETSI EN 300 019-2-3 V3.1.1 (2026-10)

Reference
REN/EE-017016
Keywords
environment, testing
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871

Important notice
The present document can be downloaded from the
ETSI Search & Browse Standards application.
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format on ETSI deliver repository.
Users should be aware that the present document may be revised or have its status changed,
this information is available in the Milestones listing.
If you find errors in the present document, please send your comments to
the relevant service listed under Committee Support Staff.
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure (CVD) program.
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part of this document may be reproduced in any form, by any means and in any media, without the prior written
authorization of ETSI and except as expressly permitted below.
By way of exception and when the document is a normative deliverable (European Standard (EN),
Technical Specification (TS), Group Specification (GS) or ETSI Standard (ES)), ETSI authorizes to reproduce
and incorporate into products, services and technical documentation only those extracts (e.g. templates) that are strictly
necessary for the technical implementation of the normative deliverable, to ensure compliance with the latter.
Nothing in this notice shall be construed as limiting any mandatory exceptions to copyright provided by applicable law.

© ETSI 2026.
All rights reserved.
ETSI
3 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 7
3.1 Terms . 7
3.2 Symbols . 7
3.3 Abbreviations . 7
4 Environmental test specifications . 8
4.0 General . 8
4.1 Equipment setup and configuration . 8
4.2 Performance criteria . 8
4.3 Specifications T 3.10 and T 3.10E: Temperature-controlled enclosed locations having no humidity
control . 9
4.4 Specification T 3.11: Enclosed locations having no temperature or humidity control . 15
4.5 Specification T 3.12: Locations having neither temperature nor humidity control . 18
5 Earthquake test specification . 23
5.0 General . 23
5.1 Vibration response investigation . 23
5.2 Test conditioning . 24
Annex A (informative): Impact of corrosion due to dust . 26
A.0 General . 26
A.1 Test condition . 26
A.1.0 Introduction . 26
A.1.1 Dust test condition . 26
A.1.2 Corrosion test . 26
A.1.3 Pass criteria . 26
A.2 Schematic Diagram of Suspension Dust Test Chamber . 27
Annex B (informative): Bibliography . 29
History . 30

ETSI
4 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables (European Standard (EN), Technical Specification (TS),
Group Specification (GS) or ETSI Standard (ES)) may have been declared to ETSI. The declarations pertaining to these
essential IPRs, if any, are publicly available for ETSI members and non-members, and can be found in
ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the
ETSI IPR online database.
Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not
referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,
essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its
Members. 3GPP™, LTE™ and 5G™ logo are trademarks of ETSI registered for the benefit of its Members and of the
3GPP Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of ®
the oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This European Standard (EN) has been produced by ETSI Technical Committee Environmental Engineering (EE).
The present document is part 2, sub part 3 of a multi-part deliverable covering the classification of environmental
conditions and environmental tests for telecommunications equipment, as identified below:
Part 1: "Classification of environmental conditions"; (see note 1)
Part 2: "Specification of environmental tests": (see note 2)
Sub-part 0: "Introduction";
Sub-part 1: "Storage";
Sub-part 2: "Transportation";
Sub-part 3: "Stationary use at weatherprotected locations";
Sub-part 4: "Stationary use at non-weatherprotected locations";
Sub-part 5: "Ground vehicle installations";
Sub-part 6: "Ship environments";
Sub-part 7: "Portable and non-stationary use";
Sub-part 8: "Stationary use at underground locations".
NOTE 1: Specifies different standardized environmental classes covering climatic and biological conditions,
chemically and mechanically active substances and mechanical conditions during storage, transportation
and in use.
NOTE 2: Specifies the recommended test severities and test methods for the different environmental classes.
ETSI
5 ETSI EN 300 019-2-3 V3.1.1 (2026-10)

National transposition dates
Date of adoption of this EN: 30 September 2026
Date of latest announcement of this EN (doa): 31 December 2026
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 June 2027
Date of withdrawal of any conflicting National Standard (dow): 30 June 2027

Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
6 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
1 Scope
The present document specifies test severities and methods for the verification of the required resistibility of equipment
according to the relevant environmental class.
The tests in the present document apply to stationary use of equipment at weatherprotected locations covering the
environmental conditions stated in ETSI EN 300 019-1-3 [1].
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found in the
ETSI docbox.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI EN 300 019-1-3 (V3.1.1) (2026): "Environmental Engineering (EE); Environmental
conditions and environmental tests for telecommunications equipment; Part 1: Classification of
environmental conditions; Sub-part 3: Stationary use at weatherprotected locations".
[2] IEC 60068-2-1:2025: "Environmental testing - Part 2-1: Tests - Test A: Cold".
[3] Void.
[4] IEC 60721-3-3:2019: "Classification of environmental conditions - Part 3-3: Classification of
groups of environmental parameters and their severities - Stationary use at weatherprotected
locations".
[5] IEC 60068-2-6:2007: "Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal)".
[6] IEC 60068-2-2:2025: "Environmental testing - Part 2-2: Tests - Test B: Dry heat".
[7] IEC 60068-2-14:2023: "Environmental testing - Part 2-14: Tests - Test N: Change of temperature".
[8] IEC 60068-2-78:2025: "Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady
state".
[9] IEC 60068-2-30:2025: "Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic
(12 h + 12 h cycle)".
[10] IEC 60068-2-64:2008+AMD1:2019: "Environmental testing - Part 2-64: Tests - Test Fh:
Vibration, broadband random and guidance".
[11] Void.
[12] IEC 60068-2-57:2013: "Environmental testing - Part 2-57: Tests - Test Ff: Vibration -
Time-history and sine-beat method".
[13] IEC 60068-2-68:1994: "Environmental testing - Part 2-68: Tests - Test L: Dust and sand".
[14] IEC 60068-2-13:2021: "Environmental testing - Part 2-13: Tests - Test M: Low air pressure".
[15] IEC 60068-2-18:2017: "Environmental testing - part 2-18: Tests - Test R and guidance: Water".
ETSI
7 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
[16] ISO 9223:2012: "Corrosion of metals and alloys — Corrosivity of atmospheres — Classification,
determination and estimation".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents may be useful in implementing an ETSI deliverable or add to the reader's
understanding, but are not required for conformance to the present document.
[i.1] ETSI EN 300 019-1-0: "Environmental Engineering (EE); Environmental conditions and
environmental tests for telecommunications equipment; Part 1-0: Classification of environmental
conditions; Introduction".
[i.2] ETSI EN 300 019-2-0: "Environmental Engineering (EE); Environmental conditions and
environmental tests for telecommunications equipment; Part 2: Specification of environmental
tests; Sub-part 0: Introduction".
[i.3] ISO 9226:2012: "Corrosion of metals and alloys — Corrosivity of atmospheres — Determination
of corrosion rate of standard specimens for the evaluation of corrosivity".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the terms given in ETSI EN 300 019-1-0 [i.1] apply.
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ASD Acceleration Spectral Density
HF Hydrogen Fluoride
PCB Printed Circuit Board
RMS Root Mean Square
RRS Required Response Spectrum
ZPA Zero Period Acceleration
ETSI
8 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
4 Environmental test specifications
4.0 General
The equipment shall be tested in its operational state throughout the test conditions described in the present document.
The detailed descriptions of the environmental conditions are given in clauses 4 and 5 of ETSI EN 300 019-1-3 [1].
ETSI EN 300 019-2-0 [i.2] forms a general overview of part 2 of this multi-part deliverable.
4.1 Equipment setup and configuration
The equipment shall be tested in its operational state throughout the test conditions described in the present document
unless otherwise stated. Input and load conditions of the equipment shall be chosen to obtain full utilization of the
equipment under test. The heat dissipation shall be maximized, except for the steady state, low temperature test, where
it shall be minimized.
4.2 Performance criteria
The following performance criteria shall apply in tests defined by the present document.
Performance criterion A:
The equipment shall function according to the manufacturer specifications before, during and after the tests. No
degradation of performance or loss of function is allowed below the performance level specified by the manufacturer
when the equipment is used as intended. If the minimum performance level is not specified by the manufacturer, then
this may be deduced from the product description and documentation and what the user may reasonably expect from the
equipment if used as intended.
Performance criterion B:
The equipment shall function according to the manufacturer specifications before and after the tests. During the test it is
not required to monitor the equipment functionality. No degradation of performance or loss of function is allowed
below the performance level specified by the manufacturer when the equipment is used as intended. If the minimum
performance level is not specified by the manufacturer, then this may be deduced from the product description and
documentation and what the user may reasonably expect from the equipment if used as intended.
Performance criterion C:
The equipment shall function according to the manufacturer specifications before and after the tests. No degradation of
performance or loss of function is allowed below the performance level specified by the manufacturer when the
equipment is used as intended. If the minimum performance level is not specified by the manufacturer, then this may be
deduced from the product description and documentation and what the user may reasonably expect from the equipment
if used as intended. During the application of the test, temporary loss of function is allowed but after the test the
equipment shall restore to the normal functionality without replacement of components, manual rebooting or human
intervention. The equipment shall sustain the test without permanent structural or mechanical damage.
Performance criterion D:
This performance criterion applies to the enclosure of the equipment. No corrosion traces (e.g. rust) or deterioration of
the enclosure shall occur at the end of the test.
ETSI
9 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
4.3 Specifications T 3.10 and T 3.10E: Temperature-controlled enclosed locations having no
humidity control
Specification T 3.10: Temperature-controlled enclosed locations having no humidity control - normal operating conditions.
The specification in table 1, table 2 and table 3 shall apply to temperature-controlled enclosed locations where humidity is usually not controlled.
Table 1: Test specification T 3.10: Temperature-controlled enclosed locations - climatic tests
Environmental parameter Environmental Environmental test specification T 3.10: In-use,
Class 3.10 Temperature-controlled enclosed locations
Type Parameter Detail parameter Characteristic Test Duration Reference Method Performance Notes
severity severity criteria
Low (°C) +5 +5 16 h IEC 60068-2-1 [2] Ab/Ad/Ae: Cold A 1
High (°C) +40 +40 or +50 16 h IEC 60068-2-2 [6] Bb/Bd/Be: Dry heat A 2
Air
(°C) +5 to+40 2 cycles IEC 60068-2-14 [7] Nb: Change of A 3
temperature
Change
(°C/min) 0,5 0,5 t = 3 h temperature
low (%) 5 None   4
high (%) 85 85 4 d IEC 60068-2-78 [8] Cab: Damp heat A 5
Relative
(°C) +30 steady state
Humidity
condensation No None
1 None   4
low (g/m )
Absolute
25 None   7
high (g/m )
low (kPa) 70 70 2 h IEC 60068-2-13 [14] Test M: Low air A 8
pressure
Pressure
Air
high (kPa) 106 None   8
Speed (m/s) 1,0 None   4
Intensity No None
Rain
low temperature No None
Other No None
Water
sources
Icing & No None
frosting
Solar 700 None   9
(W/m )
Radiation
Heat 600 None   10
(W/m )
ETSI
10 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
Environmental parameter Environmental Environmental test specification T 3.10: In-use,
Class 3.10 Temperature-controlled enclosed locations
Type Parameter Detail parameter Characteristic Test Duration Reference Method Performance Notes
severity severity criteria
[16] None   11
SO (mg/m )
Sulphur
[16] None   11
HS (mg/m )
salt mist [16] None   11
[16] None   11
Chlorine Cl (mg/m )
Chemically
[16] None   11
HCI (mg/m )
active
[16] None   11
NO (mg/m )
x
substances
Nitrogen
[16] None   11
NH (mg/m )
Hydrogen [16] None   11
(mg/m )
fluoride HF
Ozone O [16] None   11
(mg/m )
sedimentation 6   12
Mechanically
Dust (mg/(m d))
active
no None
suspension (mg/m )
substances
no None
Sand
(mg/m )
Micro organisms negligible
Flora and
fauna Rodents, insects negligible
ETSI
11 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
Environmental parameter Environmental Environmental test specification T 3.10: In-use,
Class 3.10 Temperature-controlled enclosed locations
Type Parameter Detail parameter Characteristic Test Duration Reference Method Performance Notes
severity severity criteria
NOTE 1: (Air temperature, low).
The equipment under test shall remain operational throughout this test (without any damage or deterioration of performance, according to product specification).
If a cold start up test is performed, the characteristic severity should be used as a cold start up temperature, but it may be modified (within the class characteristic
severity range) by the product specification. In this case, the cold start up test shall commence once low temperature stability is achieved.
NOTE 2: (Air temperature, high).
The equipment under test shall remain operational throughout this test (without any damage or deterioration of performance, according to product specification).
If two test temperatures are given, the lower test temperature applies if the equipment is protected against solar and heat radiation or the equipment is ventilated
(natural or forced). The higher test temperature includes the heating effects of solar and/or heat radiation. If a high temperature start up test is performed, the
characteristic severity should be used as a high start up temperature, but it may be modified (within the class characteristic severity range) by the product
specification. In this case, the high temperature start up test shall commence once high temperature stability is achieved.
NOTE 3: (Air temperature, change).
The change of temperature test is normally used to check design tolerance. IEC 60068-2-14 [7] Test Nb shall be used. For change of temperature of 0,5 °C/min,
the cooling gradient may be reduced to 0,2 °C/min where test chamber restrictions preclude a gradient of 0,5 °C/min.
NOTE 4: (Relative humidity, low).
There is no IEC 60068-2 series test method for this parameter.
NOTE 5: (Humidity, relative, high).
IEC 60068-2-78 [8] Test Cab shall be used with test values not higher than climatogram limits for this class.
NOTE 6: Void.
NOTE 7: (Humidity, absolute, high).
This effect is considered to be partly included in the damp heat test IEC 60068-2-78 [8] Test Cab.
NOTE 8: (Air pressure, low and high).
No test is recommended for normal applications, because the effect of air pressure is evaluated at the component level. For sealed products or for products
containing liquids, test M is recommended.
NOTE 9: (Radiation, solar).
The higher test temperature as described in note 2 includes the heating effect of solar radiation. Photochemical tests can be made separately for components
and materials.
NOTE 10: (Radiation, heat).
The higher test temperature as described in note 2 includes the heating effect.
NOTE 11: (Chemically active substances).
The characteristic severities are given in ISO 9223 [16]. For the chemically active substances, no specific tests are defined but they should be considered in the
design phase. The following references provide guidance for the design:
- ISO 9223:2012 [16]: this can be used to calculate the corrosion losses of standard metals.
- ISO 9226:2012 [i.3]: this can be used to determine corrosion losses of standard specimens.
NOTE 12: (Mechanically active substances).
The characteristic severities are much lower than lowest test severity in IEC 60068-2-68 [13] Test L and therefore no test is recommended. This condition should
be considered when designing the equipment and when choosing components and materials.

ETSI
12 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
Table 2: Test specification T 3.10: Temperature-controlled enclosed locations having no humidity control - mechanical tests
Environmental parameter Environmental Environmental test specification T 3.10: In-use,
Class 3.10 Temperature-controlled enclosed locations
Type Parameter Detail Characteristic Test severity Duration Reference Method Performance Notes
parameter severity criteria
2 2
Vibration Random acceleration spectral 0,01 30 minutes in IEC 60068-2-64 [10] Test Fh: A See note
0,01 (m/s ) /Hz
2 2
each Vibration,
density ((m/s ) /Hz)
direction broadband
5 Hz to 100 Hz
Frequency (Hz) 5 to 200
random
Shocks Shocks No
acceleration (m/s )
NOTE: (Vibration, random).
The test severity values are not specified in IEC 60068-2 series. The maximum test frequency has been reduced to 100 Hz, because between 100 Hz and 200 Hz
the contribution is insignificant.
Also at low and high frequency ends the ASD is reduced by 12 dB/octave.

Classes: 3.11/3.12
Acceleration RMS
1,06 m/s
(for information only)
Equipment under test shall be mounted in the "in-use" position. The equipment function shall be monitored throughout the test.

ETSI
13 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
Specification T 3.10E: Temperature-controlled enclosed locations having no humidity control - exceptional operating conditions.
The specification in table 3 shall apply to temperature-controlled enclosed locations where humidity is usually not controlled. The reference class is the same as for T 3.10, but
with extended temperature and humidity ranges.
Table 3: Test specification T 3.10E: Temperature-controlled enclosed locations, exceptional operating conditions - climatic tests
Environmental parameter Environme
...

SLOVENSKI STANDARD
01-december-2026
Okoljski inženiring (EE) - Okoljski pogoji in preskusi vplivov okolja na
telekomunikacijsko opremo - 2-3. del: Specifikacija preskusov vplivov okolja -
Stacionarna uporaba na lokacijah, zaščitenih pred vremenskimi vplivi
Environmental Engineering (EE) - Environmental conditions and environmental tests for
telecommunications equipment - Part 2-3: Specification of environmental tests - Sub-part
3: Stationary use at weatherprotected locations
Ta slovenski standard je istoveten z: ETSI EN 300 019-2-3 V3.1.1 (2026-10)
ICS:
19.040 Preskušanje v zvezi z Environmental testing
okoljem
33.050.01 Telekomunikacijska Telecommunication terminal
terminalska oprema na equipment in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
Environmental Engineering (EE);
Environmental conditions and environmental tests
for telecommunications equipment;
Part 2: Specification of environmental tests;
Sub-part 3: Stationary use at weatherprotected locations

2 ETSI EN 300 019-2-3 V3.1.1 (2026-10)

Reference
REN/EE-017016
Keywords
environment, testing
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871

Important notice
The present document can be downloaded from the
ETSI Search & Browse Standards application.
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format on ETSI deliver repository.
Users should be aware that the present document may be revised or have its status changed,
this information is available in the Milestones listing.
If you find errors in the present document, please send your comments to
the relevant service listed under Committee Support Staff.
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure (CVD) program.
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part of this document may be reproduced in any form, by any means and in any media, without the prior written
authorization of ETSI and except as expressly permitted below.
By way of exception and when the document is a normative deliverable (European Standard (EN),
Technical Specification (TS), Group Specification (GS) or ETSI Standard (ES)), ETSI authorizes to reproduce
and incorporate into products, services and technical documentation only those extracts (e.g. templates) that are strictly
necessary for the technical implementation of the normative deliverable, to ensure compliance with the latter.
Nothing in this notice shall be construed as limiting any mandatory exceptions to copyright provided by applicable law.

© ETSI 2026.
All rights reserved.
ETSI
3 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 7
3.1 Terms . 7
3.2 Symbols . 7
3.3 Abbreviations . 7
4 Environmental test specifications . 8
4.0 General . 8
4.1 Equipment setup and configuration . 8
4.2 Performance criteria . 8
4.3 Specifications T 3.10 and T 3.10E: Temperature-controlled enclosed locations having no humidity
control . 9
4.4 Specification T 3.11: Enclosed locations having no temperature or humidity control . 15
4.5 Specification T 3.12: Locations having neither temperature nor humidity control . 18
5 Earthquake test specification . 23
5.0 General . 23
5.1 Vibration response investigation . 23
5.2 Test conditioning . 24
Annex A (informative): Impact of corrosion due to dust . 26
A.0 General . 26
A.1 Test condition . 26
A.1.0 Introduction . 26
A.1.1 Dust test condition . 26
A.1.2 Corrosion test . 26
A.1.3 Pass criteria . 26
A.2 Schematic Diagram of Suspension Dust Test Chamber . 27
Annex B (informative): Bibliography . 29
History . 30

ETSI
4 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
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Foreword
This European Standard (EN) has been produced by ETSI Technical Committee Environmental Engineering (EE).
The present document is part 2, sub part 3 of a multi-part deliverable covering the classification of environmental
conditions and environmental tests for telecommunications equipment, as identified below:
Part 1: "Classification of environmental conditions"; (see note 1)
Part 2: "Specification of environmental tests": (see note 2)
Sub-part 0: "Introduction";
Sub-part 1: "Storage";
Sub-part 2: "Transportation";
Sub-part 3: "Stationary use at weatherprotected locations";
Sub-part 4: "Stationary use at non-weatherprotected locations";
Sub-part 5: "Ground vehicle installations";
Sub-part 6: "Ship environments";
Sub-part 7: "Portable and non-stationary use";
Sub-part 8: "Stationary use at underground locations".
NOTE 1: Specifies different standardized environmental classes covering climatic and biological conditions,
chemically and mechanically active substances and mechanical conditions during storage, transportation
and in use.
NOTE 2: Specifies the recommended test severities and test methods for the different environmental classes.
ETSI
5 ETSI EN 300 019-2-3 V3.1.1 (2026-10)

National transposition dates
Date of adoption of this EN: 30 September 2026
Date of latest announcement of this EN (doa): 31 December 2026
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 June 2027
Date of withdrawal of any conflicting National Standard (dow): 30 June 2027

Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
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6 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
1 Scope
The present document specifies test severities and methods for the verification of the required resistibility of equipment
according to the relevant environmental class.
The tests in the present document apply to stationary use of equipment at weatherprotected locations covering the
environmental conditions stated in ETSI EN 300 019-1-3 [1].
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found in the
ETSI docbox.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI EN 300 019-1-3 (V3.1.1) (2026): "Environmental Engineering (EE); Environmental
conditions and environmental tests for telecommunications equipment; Part 1: Classification of
environmental conditions; Sub-part 3: Stationary use at weatherprotected locations".
[2] IEC 60068-2-1:2025: "Environmental testing - Part 2-1: Tests - Test A: Cold".
[3] Void.
[4] IEC 60721-3-3:2019: "Classification of environmental conditions - Part 3-3: Classification of
groups of environmental parameters and their severities - Stationary use at weatherprotected
locations".
[5] IEC 60068-2-6:2007: "Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal)".
[6] IEC 60068-2-2:2025: "Environmental testing - Part 2-2: Tests - Test B: Dry heat".
[7] IEC 60068-2-14:2023: "Environmental testing - Part 2-14: Tests - Test N: Change of temperature".
[8] IEC 60068-2-78:2025: "Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady
state".
[9] IEC 60068-2-30:2025: "Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic
(12 h + 12 h cycle)".
[10] IEC 60068-2-64:2008+AMD1:2019: "Environmental testing - Part 2-64: Tests - Test Fh:
Vibration, broadband random and guidance".
[11] Void.
[12] IEC 60068-2-57:2013: "Environmental testing - Part 2-57: Tests - Test Ff: Vibration -
Time-history and sine-beat method".
[13] IEC 60068-2-68:1994: "Environmental testing - Part 2-68: Tests - Test L: Dust and sand".
[14] IEC 60068-2-13:2021: "Environmental testing - Part 2-13: Tests - Test M: Low air pressure".
[15] IEC 60068-2-18:2017: "Environmental testing - part 2-18: Tests - Test R and guidance: Water".
ETSI
7 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
[16] ISO 9223:2012: "Corrosion of metals and alloys — Corrosivity of atmospheres — Classification,
determination and estimation".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents may be useful in implementing an ETSI deliverable or add to the reader's
understanding, but are not required for conformance to the present document.
[i.1] ETSI EN 300 019-1-0: "Environmental Engineering (EE); Environmental conditions and
environmental tests for telecommunications equipment; Part 1-0: Classification of environmental
conditions; Introduction".
[i.2] ETSI EN 300 019-2-0: "Environmental Engineering (EE); Environmental conditions and
environmental tests for telecommunications equipment; Part 2: Specification of environmental
tests; Sub-part 0: Introduction".
[i.3] ISO 9226:2012: "Corrosion of metals and alloys — Corrosivity of atmospheres — Determination
of corrosion rate of standard specimens for the evaluation of corrosivity".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the terms given in ETSI EN 300 019-1-0 [i.1] apply.
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ASD Acceleration Spectral Density
HF Hydrogen Fluoride
PCB Printed Circuit Board
RMS Root Mean Square
RRS Required Response Spectrum
ZPA Zero Period Acceleration
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8 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
4 Environmental test specifications
4.0 General
The equipment shall be tested in its operational state throughout the test conditions described in the present document.
The detailed descriptions of the environmental conditions are given in clauses 4 and 5 of ETSI EN 300 019-1-3 [1].
ETSI EN 300 019-2-0 [i.2] forms a general overview of part 2 of this multi-part deliverable.
4.1 Equipment setup and configuration
The equipment shall be tested in its operational state throughout the test conditions described in the present document
unless otherwise stated. Input and load conditions of the equipment shall be chosen to obtain full utilization of the
equipment under test. The heat dissipation shall be maximized, except for the steady state, low temperature test, where
it shall be minimized.
4.2 Performance criteria
The following performance criteria shall apply in tests defined by the present document.
Performance criterion A:
The equipment shall function according to the manufacturer specifications before, during and after the tests. No
degradation of performance or loss of function is allowed below the performance level specified by the manufacturer
when the equipment is used as intended. If the minimum performance level is not specified by the manufacturer, then
this may be deduced from the product description and documentation and what the user may reasonably expect from the
equipment if used as intended.
Performance criterion B:
The equipment shall function according to the manufacturer specifications before and after the tests. During the test it is
not required to monitor the equipment functionality. No degradation of performance or loss of function is allowed
below the performance level specified by the manufacturer when the equipment is used as intended. If the minimum
performance level is not specified by the manufacturer, then this may be deduced from the product description and
documentation and what the user may reasonably expect from the equipment if used as intended.
Performance criterion C:
The equipment shall function according to the manufacturer specifications before and after the tests. No degradation of
performance or loss of function is allowed below the performance level specified by the manufacturer when the
equipment is used as intended. If the minimum performance level is not specified by the manufacturer, then this may be
deduced from the product description and documentation and what the user may reasonably expect from the equipment
if used as intended. During the application of the test, temporary loss of function is allowed but after the test the
equipment shall restore to the normal functionality without replacement of components, manual rebooting or human
intervention. The equipment shall sustain the test without permanent structural or mechanical damage.
Performance criterion D:
This performance criterion applies to the enclosure of the equipment. No corrosion traces (e.g. rust) or deterioration of
the enclosure shall occur at the end of the test.
ETSI
9 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
4.3 Specifications T 3.10 and T 3.10E: Temperature-controlled enclosed locations having no
humidity control
Specification T 3.10: Temperature-controlled enclosed locations having no humidity control - normal operating conditions.
The specification in table 1, table 2 and table 3 shall apply to temperature-controlled enclosed locations where humidity is usually not controlled.
Table 1: Test specification T 3.10: Temperature-controlled enclosed locations - climatic tests
Environmental parameter Environmental Environmental test specification T 3.10: In-use,
Class 3.10 Temperature-controlled enclosed locations
Type Parameter Detail parameter Characteristic Test Duration Reference Method Performance Notes
severity severity criteria
Low (°C) +5 +5 16 h IEC 60068-2-1 [2] Ab/Ad/Ae: Cold A 1
High (°C) +40 +40 or +50 16 h IEC 60068-2-2 [6] Bb/Bd/Be: Dry heat A 2
Air
(°C) +5 to+40 2 cycles IEC 60068-2-14 [7] Nb: Change of A 3
temperature
Change
(°C/min) 0,5 0,5 t = 3 h temperature
low (%) 5 None   4
high (%) 85 85 4 d IEC 60068-2-78 [8] Cab: Damp heat A 5
Relative
(°C) +30 steady state
Humidity
condensation No None
1 None   4
low (g/m )
Absolute
25 None   7
high (g/m )
low (kPa) 70 70 2 h IEC 60068-2-13 [14] Test M: Low air A 8
pressure
Pressure
Air
high (kPa) 106 None   8
Speed (m/s) 1,0 None   4
Intensity No None
Rain
low temperature No None
Other No None
Water
sources
Icing & No None
frosting
Solar 700 None   9
(W/m )
Radiation
Heat 600 None   10
(W/m )
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10 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
Environmental parameter Environmental Environmental test specification T 3.10: In-use,
Class 3.10 Temperature-controlled enclosed locations
Type Parameter Detail parameter Characteristic Test Duration Reference Method Performance Notes
severity severity criteria
[16] None   11
SO (mg/m )
Sulphur
[16] None   11
HS (mg/m )
salt mist [16] None   11
[16] None   11
Chlorine Cl (mg/m )
Chemically
[16] None   11
HCI (mg/m )
active
[16] None   11
NO (mg/m )
x
substances
Nitrogen
[16] None   11
NH (mg/m )
Hydrogen [16] None   11
(mg/m )
fluoride HF
Ozone O [16] None   11
(mg/m )
sedimentation 6   12
Mechanically
Dust (mg/(m d))
active
no None
suspension (mg/m )
substances
no None
Sand
(mg/m )
Micro organisms negligible
Flora and
fauna Rodents, insects negligible
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11 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
Environmental parameter Environmental Environmental test specification T 3.10: In-use,
Class 3.10 Temperature-controlled enclosed locations
Type Parameter Detail parameter Characteristic Test Duration Reference Method Performance Notes
severity severity criteria
NOTE 1: (Air temperature, low).
The equipment under test shall remain operational throughout this test (without any damage or deterioration of performance, according to product specification).
If a cold start up test is performed, the characteristic severity should be used as a cold start up temperature, but it may be modified (within the class characteristic
severity range) by the product specification. In this case, the cold start up test shall commence once low temperature stability is achieved.
NOTE 2: (Air temperature, high).
The equipment under test shall remain operational throughout this test (without any damage or deterioration of performance, according to product specification).
If two test temperatures are given, the lower test temperature applies if the equipment is protected against solar and heat radiation or the equipment is ventilated
(natural or forced). The higher test temperature includes the heating effects of solar and/or heat radiation. If a high temperature start up test is performed, the
characteristic severity should be used as a high start up temperature, but it may be modified (within the class characteristic severity range) by the product
specification. In this case, the high temperature start up test shall commence once high temperature stability is achieved.
NOTE 3: (Air temperature, change).
The change of temperature test is normally used to check design tolerance. IEC 60068-2-14 [7] Test Nb shall be used. For change of temperature of 0,5 °C/min,
the cooling gradient may be reduced to 0,2 °C/min where test chamber restrictions preclude a gradient of 0,5 °C/min.
NOTE 4: (Relative humidity, low).
There is no IEC 60068-2 series test method for this parameter.
NOTE 5: (Humidity, relative, high).
IEC 60068-2-78 [8] Test Cab shall be used with test values not higher than climatogram limits for this class.
NOTE 6: Void.
NOTE 7: (Humidity, absolute, high).
This effect is considered to be partly included in the damp heat test IEC 60068-2-78 [8] Test Cab.
NOTE 8: (Air pressure, low and high).
No test is recommended for normal applications, because the effect of air pressure is evaluated at the component level. For sealed products or for products
containing liquids, test M is recommended.
NOTE 9: (Radiation, solar).
The higher test temperature as described in note 2 includes the heating effect of solar radiation. Photochemical tests can be made separately for components
and materials.
NOTE 10: (Radiation, heat).
The higher test temperature as described in note 2 includes the heating effect.
NOTE 11: (Chemically active substances).
The characteristic severities are given in ISO 9223 [16]. For the chemically active substances, no specific tests are defined but they should be considered in the
design phase. The following references provide guidance for the design:
- ISO 9223:2012 [16]: this can be used to calculate the corrosion losses of standard metals.
- ISO 9226:2012 [i.3]: this can be used to determine corrosion losses of standard specimens.
NOTE 12: (Mechanically active substances).
The characteristic severities are much lower than lowest test severity in IEC 60068-2-68 [13] Test L and therefore no test is recommended. This condition should
be considered when designing the equipment and when choosing components and materials.

ETSI
12 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
Table 2: Test specification T 3.10: Temperature-controlled enclosed locations having no humidity control - mechanical tests
Environmental parameter Environmental Environmental test specification T 3.10: In-use,
Class 3.10 Temperature-controlled enclosed locations
Type Parameter Detail Characteristic Test severity Duration Reference Method Performance Notes
parameter severity criteria
2 2
Vibration Random acceleration spectral 0,01 30 minutes in IEC 60068-2-64 [10] Test Fh: A See note
0,01 (m/s ) /Hz
2 2
each Vibration,
density ((m/s ) /Hz)
direction broadband
5 Hz to 100 Hz
Frequency (Hz) 5 to 200
random
Shocks Shocks No
acceleration (m/s )
NOTE: (Vibration, random).
The test severity values are not specified in IEC 60068-2 series. The maximum test frequency has been reduced to 100 Hz, because between 100 Hz and 200 Hz
the contribution is insignificant.
Also at low and high frequency ends the ASD is reduced by 12 dB/octave.

Classes: 3.11/3.12
Acceleration RMS
1,06 m/s
(for information only)
Equipment under test shall be mounted in the "in-use" position. The equipment function shall be monitored throughout the test.

ETSI
13 ETSI EN 300 019-2-3 V3.1.1 (2026-10)
Specification T 3.10E: Temperature-controlled enclosed locatio
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