SIST EN 60312-1:2017
(Main)Vacuum cleaners for household use - Part 1: Dry vacuum cleaners - Methods for measuring the performance
Vacuum cleaners for household use - Part 1: Dry vacuum cleaners - Methods for measuring the performance
This International Standard is applicable for measurements of the performance of dry vacuum cleaners for household use in or under conditions similar to those in households.
The purpose of this standard is to specify essential performance characteristics of dry vacuum cleaners being of interest to the users and to describe methods for measuring these characteristics.
Staubsauger für den Hausgebrauch - Teil 1: Trockensauger - Prüfverfahren zur Bestimmung der Gebrauchseigenschaften
Aspirateurs de poussière à usage domestique - Partie 1: Aspirateurs a sec - Méthodes de mesure de l'aptitude à la fonction
Sesalniki za uporabo v gospodinjstvu - 1. del: Sesalniki za suho čiščenje - Metode za merjenje lastnosti
Ta mednarodni standard se uporablja za merjenje zmogljivosti sesalnikov za suho čiščenje za gospodinjsko uporabo pod pogoji, ki ustrezajo ali so podobni pogojem v gospodinjstvih.
Namen tega standarda je določiti glavne lastnosti delovanja sesalnikov za suho čiščenje, ki zanimajo uporabnike, ter opisati metode za merjenje teh lastnosti.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60312-1:2017
01-april-2017
1DGRPHãþD
SIST EN 60312-1:2013
6HVDOQLNL]DXSRUDERYJRVSRGLQMVWYXGHO 6HVDOQLNL]DVXKRþLãþHQMH0HWRGH
]DPHUMHQMHODVWQRVWL
Vacuum cleaners for household use - Part 1: Dry vacuum cleaners - Methods for
measuring the performance
Staubsauger für den Hausgebrauch - Teil 1: Trockensauger - Prüfverfahren zur
Bestimmung der Gebrauchseigenschaften
Aspirateurs de poussière à usage domestique - Partie 1: Aspirateurs a sec - Méthodes
de mesure de l'aptitude à la fonction
Ta slovenski standard je istoveten z: EN 60312-1:2017
ICS:
97.080 $SDUDWL]DþLãþHQMH Cleaning appliances
SIST EN 60312-1:2017 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 60312-1:2017
---------------------- Page: 2 ----------------------
SIST EN 60312-1:2017
EUROPEAN STANDARD EN 60312-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2017
ICS 97.080 Supersedes EN 60312-1:2013
English Version
Vacuum cleaners for household use - Part 1: Dry vacuum
cleaners - Methods for measuring the performance
(IEC 60312-1:2010 , modified + A1:2011 , modified)
Aspirateurs de poussière à usage domestique - Partie 1: Staubsauger für den Hausgebrauch - Teil 1: Trockensauger
Aspirateurs a sec - Méthodes de mesure de l'aptitude à la - Prüfverfahren zur Bestimmung der
fonction Gebrauchseigenschaften
(IEC 60312-1:2010 , modifiée + A1:2011 , modifiée) (IEC 60312-1:2010 , modifiziert + A1:2011 , modifiziert)
This European Standard was approved by CENELEC on 2017-01-02. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60312-1:2017 E
---------------------- Page: 3 ----------------------
SIST EN 60312-1:2017
EN 60312-1:2017 (E)
CONTENTS
European foreword . 3
1 Modification to Clause 3 . 4
2 Modification to 4.6 . 4
3 Modification to 5.1.5 . 6
4 Modification to 5.1.6 . 6
5 Modification to 5.2.1 . 6
6 Modification to 5.3.1 . 6
7 Modification to 5.3.3.3 . 6
8 Modification to 5.3.7 . 6
9 Modification to 5.7.2 . 6
10 Modification to 5.7.3 . 6
11 Modification to 5.11 . 6
12 Modification to 6.7.4 . 14
13 Modification to 6.9.1 . 14
14 Modification to 6.9.3 . 15
15 Modification to 6.10.3 . 15
16 Add a subclause 6.Z3 . 15
17 Modification to 7.3.2 . 16
18 Modification to 7.3.8.1 . 16
19 Modification to 7.3.8.5 . 16
20 Modification to 7.3 . 17
21 Addition of annexes . 20
2
---------------------- Page: 4 ----------------------
SIST EN 60312-1:2017
EN 60312-1:2017 (E)
European foreword
This document (EN 60312-1:2017) consists of the text of IEC 60312-1:2010+A1:2011 prepared by
SC 59F, "Surface cleaning appliances", of IEC/TC 59, "Performance of household and similar
electrical appliances", together with the common modifications prepared by CLC/TC 59X,
"Performance of household and similar electrical appliances".
The following dates are fixed:
(dop) 2018-01-02
• latest date by which this document has to be
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2020-01-02
conflicting with this document have to
be withdrawn
The common modifications of EN 60312-1:2013 still apply. They are partly modified.
Clauses, subclauses, notes, tables and figures which are additional to those in
IEC 60312-1:2010 are prefixed “Z”.
This European Standard also specifies, as far as necessary, the test methods which shall be
applied in accordance with the standardisation mandate M540 related to Council Directive
92/75 of the European Commission.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZA and ZZB, which are integral parts
of this document.
Endorsement notice
The text of the International Standard IEC 60312-1:2010+A1:2011 was approved by
CENELEC as a European Standard with agreed common modifications.
COMMON MODIFICATIONS
3
---------------------- Page: 5 ----------------------
SIST EN 60312-1:2017
EN 60312-1:2017 (E)
1 Modification to Clause 3
Add:
"3.Z4
cylinder vacuum cleaner
portable dry vacuum cleaner having a nozzle separated from the cleaner housing by a hose
so that, in use, only the nozzle is guided over the surface area to be cleaned
Note 1 to entry: Cylinder vacuum cleaners are generally floor-supported.
Note 2 to entry: The cylinder vacuum cleaner may have detachable nozzles, attachments, and tubes for both floor
and above the floor cleaning.
Note 3 to entry: The nozzle may employ a driven rotating brush to assist in cleaning.
3.Z5
water filter vacuum cleaner
dry vacuum cleaner that uses water as the main filter medium, whereby the suction air is
forced through the water entrapping the removed dry material as it passes through
3.Z6
water filter system
removable water filter components which are in contact with the water”
2 Modification to 4.6
Delete entire subclause and replace with:
“4.6 Operation of the vacuum cleaner
4.6.1 General
The tube grip of cleaners with suction hose or the handle of other cleaners shall be held as
for normal operation at a height of (800 ± 50) mm above the test floor.
During measurements where the agitation device of an active nozzle is not used as in normal
operation, the agitation device shall be running but not in contact with any surface.
The following wording regarding declaration and compliance shall also apply to EN 60704-2-1,
and EN 60335-2-2. For declaration and compliance purposes, related tests for a given
cleaning task shall be conducted with the same dry vacuum cleaner setting configurations
such as cleaning head and cleaning head setting.
NOTE 1: Related tests are all tests related to a given cleaning task. They include tests relevant to the Energy
Labelling and Ecodesign requirements for cordless dry vacuum cleaners.
NOTE 2: Related tests are:
- tests measuring the dust removal from carpet, the energy consumption for cleaning a carpet and the noise
level on carpet;
- tests measuring the dust removal from hard floor with crevices and the energy consumption for cleaning a
hard floor with crevices and the noise level on hard floors (for noise measurement regarding Energy Label /
Ecodesign refer to Regulations 665/2013 and 666/2013).
The dry vacuum cleaner setting configurations, such as cleaning head and cleaning head
setting, shall be used and adjusted in accordance with the manufacturer's instructions for the
surface to be cleaned (e.g. carpet or hard floor) for the test to be carried out. Any separate
electrical specific vacuum motor settings shall be set for maximum continuous airflow and,
unless the manufacturer’s instructions states otherwise, any manually operated air by-pass
opening for reduction of the suction power shall be closed.
In the absence of unambiguous instructions within the user manual the product shall be tested
with settings that are in accordance with any explicitly clear text, symbol or pictogram that is
identifiable on the product.
4
---------------------- Page: 6 ----------------------
SIST EN 60312-1:2017
EN 60312-1:2017 (E)
If, after following the above order of checks, the tester believes the device under test to be in
a configuration that is ambiguous, or that multiple configurations are possible with no way to
clearly determine which is the most suitable for a given task, then the manufacturer shall be
contacted for additional guidance.
Complete details of the settings used for each cleaning task are to be recorded in the test
documentation.
Where a manufacturer publishes/declares values for the performance of its product, e.g. in
the Technical Documentation, it shall provide accurate and unambiguous details of the
settings that were used during the test procedure.
NOTE 3: Performance in other settings/combinations may differ from the results in the declaration settings,
however the standard does not address those results.
4.6.2 Operation of water filter vacuum cleaner, additional requirements
4.6.2.1 Determining the water loss
Prior the preconditioning the water loss of the water filter vacuum cleaner shall be
determined.
The water filter vacuum cleaner has to run according manufacturer’s instructions for a period
of 10 min with the suction nozzle lifted 20 mm off the floor at standard temperature and
standard relative humidity. Before and after this running time of 10 min the weight of the water
filter system shall be measured with an accuracy of at least 0,1 g. This test shall be repeated
three times and an average of these 3 tests shall be noted.
The ambient condition have a big influence on the water loss. Temperature and air humidity
will have impact on the results. Therefore the temperature and air humidity should be
controlled carefully.
4.6.2.2 Filter conditions
4.6.2.2.1 For dust removal from hard flat floor (see 5.1) and from carpet (see 5.3)
If the value measured according to 4.6.1.1 is lower than 0,1 g/min the water filter vacuum
cleaner shall be used according to manufacturer’s instructions for the dust removal from hard
flat floors and carpet.
NOTE: The mass of water which is lost during the measuring time is low and has no relevant influence on the test
result.
Water Filter vacuum cleaners should not be moved to minimize the loss of water.
If the value measured according to 4.6.1.1 is equal or higher than 0,1 g/min and the water
filter vacuum cleaner is equipped with a dust collection system which doesn’t use water, this
collecting system will be included to determine the dust removal from hard flat floors
according to 5.1.6 and dust removal from carpets according to 5.3.
The air data according to 5.8.shall be measured with the water filter system used according to
the manufacturer’s instructions. Then, the vacuum cleaner shall be equipped with the dust
collecting system without water and the maximum airflow shall be adjusted to ± 3 % of the
measured values with the water filter system.
In all other cases the dust removal from hard flat floors and from carpet shall be performed
using the dust collecting box (see 7.3.Z2 Dust collecting box) as a pre filter system. The
vacuum cleaner shall be used according to manufacturer’s instructions.
The dust collecting box is equipped with a filter bag. The filter bag from the reference vacuum
cleaner system could be used. For measuring dust pick up the filter bag shall be handled in
the same way as it is handled in the reference vacuum cleaner system
5
---------------------- Page: 7 ----------------------
SIST EN 60312-1:2017
EN 60312-1:2017 (E)
4.6.2.2.2 For all other tests with a water filter vacuum cleaner
The vacuum cleaner and its attachments shall be used and adjusted in accordance with the
manufacturer's instructions for normal operation for the test to be carried out.”
3 Modification to 5.1.5
Add note at the end:
“NOTE: For water filter vacuum cleaners consider 4.6.1”
4 Modification to 5.1.6
Add note at the end:
“NOTE: For water filter vacuum cleaners consider 4.6.1”
5 Modification to 5.2.1
Replace "removable insert with a crevice" with "removable aluminium insert with a crevice."
6 Modification to 5.3.1
Add note at the end:
"NOTE There are known issues with the reproducibility of this test. An extensive round robin test is underway to
define the uncertainties within the procedure for future versions of the standard. Changes may be necessary to the
way it is recommended the test is performed and results are corrected.”
7 Modification to 5.3.3.3
Add note at the end:
“NOTE: For water filter vacuum cleaners consider 4.6.1”
8 Modification to 5.3.7
Add note at the end:
“NOTE: For water filter vacuum cleaners consider 4.6.1”
9 Modification to 5.7.2
Add after first paragraph:
"For water filter vacuum cleaner the visible maximum level mark has to be checked with
vacuum cleaner off.”
10 Modification to 5.7.3
Add after first paragraph:
"For water filter vacuum cleaner the water loss during the feeding time shall be taken into
consideration. The ON duration during the feeding time has to be measured and multiplied
with the water loss measured according to 4.6.1.1. This lost weight shall be added to the
calculated usable volume.
NOTE 1: For water filter vacuum cleaners take into consideration that the density of the moulding granules could
change due to the contact with water.”
11 Modification to 5.11
Delete entire clause including heading and replace with:
6
---------------------- Page: 8 ----------------------
SIST EN 60312-1:2017
EN 60312-1:2017 (E)
“5.11 Filtration efficiency and dust re-emission of the vacuum cleaner
5.11.1 Purpose
The aim of this test is to determine the ability of a vacuum cleaner to retain dust, depending
on particle size, from the intake aerosol containing a predefined concentration of test dust.
This test is not suitable for determining permeability of filters or filter materials.
5.11.2 Test conditions
NOTE A relative humidity of 45 % RH to 55 % RH is recommended for control of static.
Measuring equipment required for the test is specified in 7.3.8.
In preparation of the test, the vacuum cleaner should be equipped with a new or thoroughly
cleaned dust receptacle and new filters according to specifications. It is to be set to operate at
maximum airflow.
The vacuum cleaner is placed centrally under the test hood in its normal operation condition.
Dust will be fed
• to vacuum cleaners with a suction hose, through this hose,
• to vacuum cleaners without a suction hose (for instance Uprights) through a suitable
auxiliary hose which is connected and sealed tightly to the suction nozzle by use of a
nozzle adaptor.
For water filter vacuum cleaner distilled water shall be used for measuring the filtration
efficiency. The amount of water shall be taken from the manufacturer’s instructions. In order
not to measure water droplets a diffusion dryer shall be added to the inlet of the particle
counter.
5.11.3 Determining the test dust quantity
For the entire duration of dust, according to 7.2.2.5 being fed, the dust concentration c shall
3
in the intake aerosol channel. Therefore, the maximum airflow q for the vacuum
be 0,1 g/m
cleaner with the given filter equipment shall be determined.
The quantity m of dust to be fed for duration t is calculated consequently as
DUST
m= c×t ×q
DUST
5.11.4 void
5.11.5 void
5.11.6 Test procedure
5.11.6.1 General
A test run can be conducted either by using two particle counters which read intake and
exhaust values simultaneously or by using a single particle counter which is switched for
reading intake and exhaust values, respectively.
Particle registration is by particle analysing system (see 7.3.8.5) which can be operated with a
suitable aerosol dilution system to adapt count rate capacity and the particle concentration of
aerosol intake and of exhaust channel, respectively. The results of any single trial shall be
recorded as follows:
• counter events / class; i.e. the number of events recorded by the particle counter,
separately for each range of particle size as well as for aerosol intake channel and
exhaust channel;
• sample air volumes, VA (exhaust) and VA (intake); i.e. the volumes of the aerosol
Ex In
samples analysed by the particle counter combined in the course of the trial;
• applicable dilution factors k (intake or exhaust) of the particle analysis system; i.e.
VA
the ratio between the volume of the air sample extracted from the channel and the
sample air volume analysed by the particle counter.
7
---------------------- Page: 9 ----------------------
SIST EN 60312-1:2017
EN 60312-1:2017 (E)
The following test procedure for a single trial may be repeated with several dry vacuum
cleaners of identical type. Then the final result of the test run has to be averaged
arithmetically.
NOTE 1 Proper dilution ratio needs to be verified. Prove not over-concentrated by serial dilution and prove not
over-diluted on the exhaust by lessening the dilution serially, see 7.3.8.5.
NOTE 2 There are known issues with the particle transport within this test. Measures are under development to
ensure and verify a proper particle transport. Changes may be necessary to the measuring equipment or to the way
the test is performed.
5.11.6.2 Single particle counter procedure
A single trial proceeds as follows:
• the dry vacuum cleaner is operated without dust being fed until acceptable and stable
conditions are achieved (minimum 10 min, maximum 30 min). This method stability is
± 10 % for particle counts over 100 for 30 s or less than 100 particle counts per 30 s
over at least 10 min.
• conditioning: dust is fed for 10 min while the particle concentration in the aerosol
intake channel is monitored (quantity of test dust according to 5.11.3),
• sampling: feeding of dust is continued for approximately 10 min during which 5 test
cycles are carried out, each consisting of:
• particle registration from aerosol intake channel for 30 s (intake measurement),
• flushing of particle analysing system with the applicable sample stream for ≥ 10 s,
• particle registration from exhaust channel for 30 s (exhaust measurement),
• flushing of particle analysing system with the applicable sample stream for ≥ 10 s.
5.11.6.3 Dual particle counter procedure
If two particle counters are used, they need to be verified to match in calibration and count
rate. Their particle counts have to be within 10 % in each range of particle size for particle
counts over 100 for 30 s.
A single trial proceeds as follows:
• the dry vacuum cleaner is operated without dust being fed until acceptable and stable
conditions are achieved (minimum 10 min, maximum 30 min). This method stability is
± 10 % for particle counts over 100 for 30 s or less than 100 particle counts per 30 s
over at least 10 min.
• conditioning: dust is fed for 10 min while the particle concentration in the aerosol
intake channel is monitored (quantity of test dust according to 5.11.3),
• sampling: feeding of dust is continued for 150 s during which 5 test cycles are carried
out, each consisting of continuous particle registration from both aerosol intake
channel (intake measurement) and exhaust channel (exhaust measurement) for 30 s.
5.11.7 Evaluation
5.11.7.1 General
Based on the particle counts obtained in the 5 measurement cycles, for aerosol intake
channel and exhaust channel, the evaluation can be done either for
• fractional filtration efficiency (for each class of particle size) or
• filtration efficiency for the entire range of particle size (i.e. from 0,3 µm to 10 µm).
Filtration efficiency E for the entire range of particle size is 1 minus the ratio of number of
particles exhaust and number of particles intake.
Dust re-emission R for the respective range of particle size is defined as 1 minus E which is
the ratio of number of particles exhaust and number of particles intake.
The basic formulae are:
E = 1 - R
R = 1 - E
8
---------------------- Page: 10 ----------------------
SIST EN 60312-1:2017
EN 60312-1:2017 (E)
The detailed determination of E and R for a range of particle size including consideration of
the 95 % confidence level is shown below.
5.11.7.2 Evaluation of fractional filtration efficiency
Based on the particle counts obtained in the 5 measurement cycles, for aerosol intake
channel and exhaust channel, the fractional filtration efficiency is derived for each particle
class.
The individual measurements are considered to be samples of a full distribution, and a
statistical analysis is performed accordingly.
Given the particle counts of the aerosol intake channel for particle class k obtained
z(k,l)
U
from each individual measurement cycle l, the corresponding lower limits of the 95 % -
confidence range, , are obtained as follows:
Z(k)
U
– summation of particle counts obtained for particle class k in 5 individual measurements
intake
5
=
Z(k) z(k,l)
∑
U U
l=1
where
k is the index of particle class;
l is the running index of individual measurement cycles;
(k,l) is the particle count intake in class k from individual measurement cycle l;
U
Z(k) is the particle sum intake in class k from all measurement cycles;
U
– determination of the 95 % lower - confidence limits Z(k) for the particle sums Z(k) :
U_95 U
1
2
If : Z(k)
> 50 = −1,96×
( )
Z(k) Z(k) Z(k)
U U U
U_ 0,95
If : from Table 1.
Z(k)
≤ 50
Z(k)
U
U_ 0,95
Given the particle counts of the exhaust channel for particle class k obtained from
z(k,l)
D
each individual measurement cycle l, the corresponding upper limits of the 95 % - confidence
range, are similarly derived by
Z(k)
D _ 0,95
– summation of particle counts obtained for particle class I in 5 individual measurements
exhaust:
5
=
Z(k) ∑z(k,l)
D D
l=1
where
k is the index of particle class;
l is the running index of individual measurement cycles;
z(k,l) is the particle count exhaust in class k from individual measurement
D
cycle l;
Z(k) is the particle sum exhaust in class k from all 5 measurement cycles;
D
– determination of corresponding upper limits of the 95 % - confidence range
from particle sums Z(k) :
D
Z(k)
D _ 0,95
9
---------------------- Page: 11 ----------------------
SIST EN 60312-1:2017
EN 60312-1:2017 (E)
1
2
If :
> 50 = +1,96×
( )
Z(k) Z(k) Z(k)
Z(k)
D D D
D _ 0,95
If : from Table 1.
≤ 50
Z(k)
D Z(k)
D _ 0,95
From the statistical limits calculated above, the lower limit of the 95 % - confidence range of
the fractional filtration efficiency, , is obtained for each particle class k :
E(k)
0,95
VAU
× ×
k
Z(k) VA _D
D _ 0,95
VAD
E(k)
= 1−
0,95
Z(k)
×
k
VA _U
U_ 0,95
where
k is the index of particle class;
E(k) is the lower limit of confidence for filtration efficiency of particle class k;
0,95
k is the exhaust dilution factor of particle analysis system;
VA_D
k is the intake dilution factor of particle analysis system;
VA_U
VA is the exhaust sample air volume analysed;
D
VA is the intake sample air volume analysed;
U
Z(k) is the upper limit of confidence for partial sum class k from exhaust
D_0,95
measurements;
Z(k) is the lower limit of confidence for particle sum class k from intake
U 0,95
measurements.
This evaluation shall be carried out in every test.
5.11.7.3 Evaluation of filtration efficiency and dust re-emission for the entire range of
particle size
The individual measurements are considered to be samples of a full distribution, and a
statistical analysis is performed accordingly.
Given the particle counts of the aerosol intake channel for particle class k obtained
z(k,l)
U
from each individual measurement cycle l, the corresponding lower limits of the 95 % -
confidence range, , are obtained as follows:
Z(k)
U
– summation of particle counts obtained for the entire range of particle size between 0,3 µm
and 10 µm in 5 individual measurements intake
5
=
Z(k) ∑z(k,l)
U U
l=1
where
k is the index of particle class;
l is the running index of individual measurement cycles;
(k,l) is the particle count intake in class k from individual measurement cycle
U
l;
10
---------------------- Page: 12 ----------------------
SIST EN 60312-1:2017
EN 60312-1:2017 (E)
Z (l) is the intake sum of particles between 0,3 µm and 10 µm from individual
0,3-10U
measurement cycle l.
– summation of particle counts for 5 measurement cycles
5
=
∑Z 0,3−10U(I)
Z
0,3−10U
I=1
Where
l is the running index of individual measurement cycles;
k0,3 is the particle class with the lower limit of 0,3 µm;
k10 is the particle class with the upper limit of 10 µm;
Z is the intake sum of particles between 0,3 µm and 10 µm.
0,3-10U
– determination of the 95 % lower - confidence limits for the particle sums
Z0,3−10
U_0,95
:
Z0,3−10U
1
If : 2
> 50
= −1,96×
( )
Z Z
0,3−10U 0,3−10 Z Z
0,3−10U 0,3−10U
U_0,95
If : from Table 1.
≤ 50
Z Z
0,3−10U 0,3−10
U_0,95
Given the particle counts of the exhaust channel for particle class k obtained from
z(k,l)
D
each individual measurement cycle l, the corresponding upper limits of the 95 % - confidence
range, are similarly derived by
Z(k)
D _ 0,95
– summation of particle counts obtained for the entire range of particle size between 0,3 µm
and 10 µm in 5 individual measurements exhaust:
k10
(I)=
Z(k,I)
∑
Z0,3−10D
D
k=k 0,3
where
k is the index of particle class;
l is the running index of individual measurement cycles;
z(k,l) is the particle count exhaust in class k from individual measurement
D
cycle l;
Z (I) is the exhaust sum of particles between 0,3 µm and 10 µm from
0,3-10D
individual measurement cycle I;
– summation of particle counts for 5 measurement cycles:
5
=
Z 0,3−10D(I)
∑
Z0,3−10D
I=1
Where
l is the running index of individual measurement cycles;
k0,3 is the class with the lower limit of 0,3 µm
k10 is the particle class with the upper limit of 10 µm
Z(k) is the particle sum exhaust in class k from all 5 measurement cycles;
D
Z is the exhaust sum of particles between 0,3 µm and 10 µm
0,3-10D
11
---------------------- Page: 13 ----------------------
SIST EN 60312-1:2017
EN 60312-1:2017 (E)
– determination of corresponding upper limits of the 95 % - confidence range
from particle sums :
Z Z0,3−10D
0,3−10
D_ 0,95
1
2
If :
> 50
= +1,96×( )
Z0,3−10D Z
Z0,3−10D Z0,3−10D
0,3−10
D_0,95
If : from Table 1.
≤ 50
Z0,3−10D Z
0,3−10
D_0,95
From the statistical limits calculated above, the lower limit of the 95 % - confidence range of
the filtration efficiency, , is obtained :
E
0,3−10_0,95
VAU
× ×
Z
kVA _D
0,3−10
D _ 0,95
VA
D
= 1−
E
0,3−10 _ 0,95
×
Z
0,3−10
kVA _U
U_ 0,95
=1−
E
R
0,3−10 _ 0,95 0,3−10 _ 0,95
where
is the lower limit of confidence for filtration efficiency of particles
E
0,3−10_0,95
between 0,3 µm and 10 µm;
is the upper limit of confidence for dust re-emission of particles between
R
0,3−10_0,95
0,3 µm and 10 µm;
k is the exhaust dilution factor of particle analysis system;
VA_D
is the intake dilution factor of particle analysis system;
k
VA_U
VA is the exhaust sample air volume analysed;
D
is the intake sample air volume
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.