ISO/TS 21985:2022
(Main)Light gauge metal containers — Non-refillable LPG cartridges — General requirements
Light gauge metal containers — Non-refillable LPG cartridges — General requirements
This document specifies minimum requirements for the construction, design, material, performance, test methods and marking at manufacture of non-refillable liquefied petroleum gas (LPG) cartridges. This document is applicable to non-refillable LPG cartridges which: a) predominantly comprise butane fuel gas (iso/normal); b) have a total nominal capacity of up to 250 g net; c) are intended to deliver gas in the vapour state when either positioned upright or in a horizontal orientation; d) are used with certain types of gas appliances, e.g. portable gas cookers; e) are classified as UN 2037, RECEPTACLES, SMALL, CONTAINING GAS (GAS CARTRIDGES) without a release device, non-refillable for the transport of dangerous goods.
Récipients métalliques légers — Cartouches de GPL non rechargeables — Exigences générales
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Standards Content (Sample)
TECHNICAL ISO/TS
SPECIFICATION 21985
First edition
2022-02
Light gauge metal containers —
Non-refillable LPG cartridges —
General requirements
Récipients métalliques légers — Cartouches de GPL non rechargeables
— Exigences générales
Reference number
© ISO 2022
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Published in Switzerland
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Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Gas filled in cartridge . 2
4.1 Composition . 2
4.2 Nominal LPG capacity . 3
4.3 Odour . . . 3
5 Construction and design . .3
5.1 Construction . 3
5.2 Design . 3
5.2.1 Dimensions of cartridge and cartridge valve . 3
5.2.2 Compressive (stroke) dimension and initial injection stroke of cartridge
valve . 5
6 Material. 6
6.1 Material of cartridge body . 6
6.2 Material of cartridge stem . 6
7 Performance . 6
8 Test methods . 7
8.1 Test condition . 7
8.2 Test instruments and apparatus . 7
8.3 Tests for construction, design, material and performance . 7
8.3.1 General . 7
8.3.2 Vibration test . 7
8.3.3 Drop test . 7
8.3.4 Gas resistance test . 8
8.3.5 Ozone resistance test . 8
8.3.6 Gas tightness test . 8
8.3.7 Pressure resistance test . 8
8.3.8 Stem functioning load test . 9
8.3.9 Repeated use test . 9
8.3.10 LPG composition test . 9
8.3.11 Filled LPG mass test . 9
8.3.12 Test of compressive (stroke) dimension and initial injection stroke
dimension of cartridge valve . 10
8.3.13 Initial partial air pressure test . 10
8.3.14 Valve flow rate test . 10
8.3.15 Flange strength test . 11
9 Marking . .12
Annex A (normative) Specific regional requirements .13
Annex B (informative) Burst prevention device for non-refillable LPG cartridges .15
iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
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the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 52, Light gauge metal containers.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
TECHNICAL SPECIFICATION ISO/TS 21985:2022(E)
Light gauge metal containers — Non-refillable LPG
cartridges — General requirements
1 Scope
This document specifies minimum requirements for the construction, design, material, performance,
test methods and marking at manufacture of non-refillable liquefied petroleum gas (LPG) cartridges.
This document is applicable to non-refillable LPG cartridges which:
a) predominantly comprise butane fuel gas (iso/normal);
b) have a total nominal capacity of up to 250 g net;
c) are intended to deliver gas in the vapour state when either positioned upright or in a horizontal
orientation;
d) are used with certain types of gas appliances, e.g. portable gas cookers;
e) are classified as UN 2037, RECEPTACLES, SMALL, CONTAINING GAS (GAS CARTRIDGES) without a
release device, non-refillable for the transport of dangerous goods.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
ISO 1431-1:2012, Rubber, vulcanized or thermoplastic — Resistance to ozone cracking — Part 1: Static and
dynamic strain testing
ISO 11949, Cold-reduced tinmill products — Electrolytic tinplate
ISO 11951, Cold-reduced tinmill products — Blackplate
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
non-refillable liquefied petroleum gas cartridge
non-refillable LPG cartridge
cartridge only filled up once with LPG
3.2
flange
guide for setting the non-refillable liquefied petroleum gas cartridges (3.1) in the gas appliances in the
appropriate direction
3.3
boss
protruding part at the centre of the non-refillable liquefied petroleum gas cartridges (3.1) that houses the
stem (3.5) or another valve part
3.4
cartridge cap
cap for protecting the gas outlet of the non-refillable liquefied petroleum gas cartridges (3.1) for the gas
appliances
3.5
stem
part for vapour withdrawal which is fitted to a gas appliance
3.6
burst prevention device
part of the non-refillable liquefied petroleum gas cartridges (3.1) which releases pressure or closes the
gas flow inside the cartridges when the pressure or the temperature reaches a pre-set value
3.7
countersink release vent type
CRV type
burst prevention device (3.6) that, when the internal pressure of the cartridge rises and the cartridge is
deformed, the explosion-proof part ruptures installed on the upper body in a state where the body and
the upper body are not separated from each other to discharge the LPG and prevent the explosion
3.8
rim vent release type
RVR type
burst prevention device (3.6) that, when the internal pressure of the cartridge rises and the cartridge
is deformed, the explosion-proof part ruptures installed on the rim in a state where the body and the
upper body are not separated from each other to discharge the LPG and prevent the explosion
3.9
resealing valve type
burst prevention device (3.6) that, when the internal pressure of the cartridge rises, the resealing valve
is opened to discharge the LPG and prevent the explosion, and after decreasing the internal pressure of
the cartridge, the resealing valve is closed and used a
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