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Articles, pressurized, pneumatic containing non-flammable gas
UN Proper Shipping Name (Description) Class (Sub Hazard) Hazard Label(s) PG Passenger and Cargo Aircraft Cargo Aircraft Only SP ERG Code
EQ Ltd Qty Pkg Inst Max Net Qty/Pkg Pkg Inst Max Net Qty/Pkg
Pkg Inst Max Net Qty/Pkg
(A) (B) (C) (D) (E) (F) (G) (H) (I) (J) (K) (L) (M) (N)
UN3164 Articles, pressurized, pneumatic containing non-flammable gas 2.2 Non-Flammable Gas E0 Forbidden Forbidden 208 No Limit 208 No Limit A48, A114, A195 2L
Column Name # Column Name
UN (A) UN3164
Proper Shipping Name (description) (B) Articles, pressurized, pneumatic containing non-flammable gas
Class (Sub Risk) (C) 2.2
Hazard Label (D) Non-Flammable Gas
Packing Group (E)
Pass and Cargo Aircraft - Excepted Quantity (F) E0
Pass and Cargo Aircraft - Ltd Qty - Pkg Inst (G) Forbidden
Pass and Cargo Aircraft - Ltd Qty - Max Net Qty/Pkg (H) Forbidden
Pass and Cargo Aircraft - Pkg Inst (I) 208
Pass and Cargo Aircraft - Max Net Qty/Pkg (J) No Limit
Cargo Aircraft Only - Pkg Inst (K) 208
Cargo Aircraft Only - Max Net Qty/Pkg (L) No Limit
Special Provision (M) A48, A114, A195
ERG Code (N) 2L
IATA Dangerous Goods Advisor — 2025 IATA, 66th Edition
Column A: - UNID UN3164 [Hide]
Description:
UN or ID (identification) number—Contains the serial number assigned to the article or substance under the United Nations classification system. When this number is used, it must be prefixed by the letters “UN”. If the substance has not been assigned a number in the UN classification system, a temporary identification number in the 8000 series has been assigned and is indicated where appropriate. Numbers in the 8000 series must be identified with the “ID” prefix instead of when UN is indicated for markings and documentation in these Regulations. For example, the number would appear as UN 1950 or ID 8000 and not as 1950 or 8000.
[4.1.6.1]
Column B: - Proper Shipping Name (description) Articles, pressurized, pneumatic containing non-flammable gas [Hide]
Description:
Proper Shipping Name/Description—Contains an alphabetical listing of dangerous goods articles and substances identified by their proper shipping names together with qualifying descriptive text. The proper shipping name is shown in bold (dark) type whereas the descriptive text is shown in light type. See 8.1.3 for additional information concerning proper shipping names.
Also included, in light type, are:
  1. other names by which certain articles and substances may be known; in such cases a cross-reference to the proper shipping name is given;
  2. names of articles and substances which are forbidden for carriage by air under any circumstances;
  3. names of articles and substances which are subject to additional considerations under special provisions; and
  4. names of substances and articles, which are considered to be not restricted.
The following symbols appear against some of the entries in this column:
Symbol—Meaning
★—Addition of technical or chemical group name(s) required. See 4.1.2.1(d).
†—Additional information can be found in Appendix A.
Note:
The “★” and “†” symbols are not part of the proper shipping name.
Names are given in strict alphabetical order of the proper shipping name appearing in bold print, i.e. where names comprise more than one word, they are alphabetized as if they were a single word. However, the following components of the names have been ignored:
  • numerals;
  • the single letters a-, b-, m-, N-, n-, O-, o-, p-;
  • the prefixes alpha-, beta-, meta-, omega-, sec-, tert-;
  • the term “n.o.s.”.
Unless otherwise indicated for an entry in the List of Dangerous Goods, the word “ solution” in a proper shipping name means one or more named dangerous goods dissolved in a liquid that is not otherwise subject to these Regulations.
[4.1.6.2]
Column C: - Class (Sub Risk) 2.2 [Hide]
Class 2
Gases
[3.0.2]
Division 2.2
Non-flammable, non-toxic gas.
[3.0.2]
Description:
Class or Division (Subsidiary hazard)—Contains the class or division number assigned to the article or substance according to the classification system described in Section 3. In the case of Class 1 Explosives, the compatibility group is also shown. Where the substance has a subsidiary hazard(s) the class or division number, which have been identified by applying the classification criteria in Section 3 is shown in parentheses following the primary hazard. All subsidiary hazards are listed in numerical order.
[4.1.6.3]
Column D: - Hazard Label(s) Non-Flammable Gas [Hide]
[7.3]
Description:
Labels—Contains the hazard label(s) to be applied to the outside of each package and overpack for the commodity shown in Column B. The primary hazard label is listed first followed by any subsidiary hazard label(s). For n.o.s. or generic articles and substances with more than one hazard, all applicable subsidiary hazard labels may not be indicated. In these cases, subsidiary hazard labels must be applied in accordance with 7.2.3.5, 7.2.3.6 and 7.2.3.8. In addition, handling labels for “Cryogenic liquid”, “Keep away from heat” and “Magnetized Material” and the mark for “Environmentally hazardous substance” are shown in this column against applicable articles and substances. See 7.1.5 for the application of additional marks and 7.2.4 for the application of handling labels.
[4.1.6.4]
Column E: - Packing Group [Hide]
Description:
Packing Group —Contains the UN Packing Group, i.e. I, II or III, where assigned to the substance (see 3.0.3).
[4.1.6.5]
Column F: - Passenger and Cargo Aircraft - Excepted Quantity E0 [Hide]
Excepted Quantity Code E0
EQ CodeMaximum net quantity perinner packagingMaximum net quantity perouter packaging
E0Not permitted as Excepted Quantity
[2.6.4.1]
Description:
Excepted Quantity Code—Contains the Excepted Quantity code assigned to the substance or article by packing group (see 2.6.4.1 and Table 2.6.A).
[4.1.6.6]
Column G: - Passenger and Cargo Aircraft - Ltd Qty - Pkg Inst Forbidden [Hide]
Description: Refers to the relevant packing instructions listed in Section 5.
[4.1.6]
Column H: - Pass and Cargo Aircraft - Ltd Qty - Max Net Qty/Pkg Forbidden [Hide]
Description:
Passenger and Cargo Aircraft Limited Quantity—Maximum Net Quantity per Package—Shows the maximum net quantity (weight or volume) of the article or substance allowed in each package for transport on a passenger or cargo aircraft. The weight quoted is the net weight, unless otherwise indicated by a letter G which refers to the gross weight. Factors for converting imperial or US units to SI units appear in Appendix B. The maximum quantity per package may be further limited by the type of container used (see Section 5). If the word Forbidden is shown, the article or substance cannot be carried under Limited Quantity provisions.
Note:
Where an article or substance is packed according to the packing instruction in Column G or I and is within the maximum net quantity shown in Column H or J it may also be carried on a cargo aircraft. In such circumstances the package must not bear the “Cargo Aircraft Only” label.
[4.1.6.8]
Column I: - Passenger and Cargo Aircraft - Pkg Inst 208 [Hide]
Packing Instruction 208
PACKING INSTRUCTION 208
STATE VARIATIONS: USG-13
OPERATOR VARIATIONS: CI-01, FZ-02
This instruction applies to UN 3164 on passenger and cargo aircraft and Cargo Aircraft Only.
The General Packing Requirements of 5.0.2 must be met.
Articles, pressurized pneumatic or hydraulic, containing a non-flammable, non-liquefied and non-toxic gas and constructed from materials which will not fragment under pressure may be carried under the following conditions:
  1. when installed in construction equipment and assembled machinery, articles must be designed and constructed with a burst pressure of not less than five times their charged pressure at 21°C when shipped.
    Note:
    For 208(a), Labelling, Marking, Shipper's Declaration and information to pilot-in-command are not required. See 8.2.3 for Air Waybill requirements.
  2. when tightly packed to prevent movement in strong outer packagings and when charged to not more than 1,380 kPa at 21°C (13.8 bar), the following conditions also apply:
    1. each article must have a fluid space not exceeding 41 L under stored pressure,
    2. each article must be tested without failure or damage to at least three times its charged pressure at 21°C, but not less than 830 kPa (8.3 bar) before initial shipment and before each refilling and reshipment;
  3. when tightly packed to prevent movement in strong outer packagings and when charged with a pressure exceeding 1,380 kPa at 21°C (13.8 bar), the following conditions also apply:
    1. each article must have a fluid space not exceeding 41 L under stored pressure,
    2. each article must be tested without failure or damage to at least three times its charged pressure at 21°C, but not less than 830 kPa (8.3 bar) before initial shipment and before each refilling and reshipment,
    3. each article must be designed and constructed with a burst pressure of not less than five times its charged pressure at 21°C when shipped.
[5.2]
Description: Refers to the relevant packing instructions listed in Section 5.
[4.1.6]
Column J: - Passenger and Cargo Aircraft - Max Net Qty/Pkg No Limit [Hide]
Description:
Passenger and Cargo Aircraft—Maximum Net Quantity per Package—Shows the maximum net quantity ( weight or volume) of the article or substance allowed in each package for transport on a passenger or cargo aircraft. Factors for converting imperial or US units to SI units appear in Appendix B. The maximum quantity per package may be further limited by the type of container used (see Section 5). The maximum net quantities indicated may be exceeded only if specified in these Regulations, or as permitted with the approval of the appropriate national authority of the State of Origin and the State of the Operator. If the word Forbidden is shown, the article cannot be carried on a passenger aircraft.
Note:
Where an article or substance is packed according to the packing instruction in Columns G or I and is within the maximum net quantity shown in Columns H or J it may also be carried on a cargo aircraft. In such circumstances the package must not bear the “Cargo Aircraft Only” label.
[4.1.6.10]
Column K: - Cargo Aircraft Only - Pkg Inst 208 [Hide]
Packing Instruction 208
PACKING INSTRUCTION 208
STATE VARIATIONS: USG-13
OPERATOR VARIATIONS: CI-01, FZ-02
This instruction applies to UN 3164 on passenger and cargo aircraft and Cargo Aircraft Only.
The General Packing Requirements of 5.0.2 must be met.
Articles, pressurized pneumatic or hydraulic, containing a non-flammable, non-liquefied and non-toxic gas and constructed from materials which will not fragment under pressure may be carried under the following conditions:
  1. when installed in construction equipment and assembled machinery, articles must be designed and constructed with a burst pressure of not less than five times their charged pressure at 21°C when shipped.
    Note:
    For 208(a), Labelling, Marking, Shipper's Declaration and information to pilot-in-command are not required. See 8.2.3 for Air Waybill requirements.
  2. when tightly packed to prevent movement in strong outer packagings and when charged to not more than 1,380 kPa at 21°C (13.8 bar), the following conditions also apply:
    1. each article must have a fluid space not exceeding 41 L under stored pressure,
    2. each article must be tested without failure or damage to at least three times its charged pressure at 21°C, but not less than 830 kPa (8.3 bar) before initial shipment and before each refilling and reshipment;
  3. when tightly packed to prevent movement in strong outer packagings and when charged with a pressure exceeding 1,380 kPa at 21°C (13.8 bar), the following conditions also apply:
    1. each article must have a fluid space not exceeding 41 L under stored pressure,
    2. each article must be tested without failure or damage to at least three times its charged pressure at 21°C, but not less than 830 kPa (8.3 bar) before initial shipment and before each refilling and reshipment,
    3. each article must be designed and constructed with a burst pressure of not less than five times its charged pressure at 21°C when shipped.
[5.2]
Description: Refers to the relevant packing instructions listed in Section 5.
[4.1.6]
Column L: - Cargo Aircraft Only - Max Net Qty/Pkg No Limit [Hide]
Description:
Cargo Aircraft Only—Maximum Net Quantity per Package—Shows the maximum net quantity (weight or volume) of the article or substance allowed in each package for transport on a cargo aircraft only. Factors for converting imperial or US units to SI units appear in Appendix B. The maximum quantity per package may be further limited by the type of container used (see Section 5). The maximum net quantities indicated may be exceeded only if specified in these Regulations, or as permitted with the approval of the appropriate national authority of the State of Origin and the State of the Operator. If the word Forbidden is shown, the article cannot be carried on any aircraft unless exempted by States under the provisions of 1.2.6.
Note:
The quantity limitations in Columns H, J and L apply only to the amount contained in one package, not in one consignment or aircraft. For example: in the List of Dangerous Goods the maximum net quantity per package of Acetyl chloride, UN 1717 is one litre per package on passenger aircraft. However, a passenger aircraft can carry as many one-litre packages of Acetyl chloride as may be necessary, unless further restricted by State or operator variations.
[4.1.6.12]
Column M: - Special Provision A48, A114, A195 [Hide]
Special Provision A48
A48
Packaging tests are not considered necessary.
[4.4 A48]
Special Provision A114
A114
(283) Articles, containing gas intended to function as shock absorbers, including impact energy absorbing devices or pneumatic springs are not subject to these Regulations provided:
  1. each article has a gas space capacity not exceeding 1.6 L and a charge pressure not exceeding 280 bar where the product of the capacity (litres) and charge pressure (bars) does not exceed 80 (i.e. 0.5 L gas space and 160 bar charge pressure, 1 L gas space and 80 bar charge pressure, 1.6 L gas space and 50 bar charge pressure, 0.28 L gas space and 280 bar charge pressure);
  2. each article has a minimum burst pressure of 4 times the charge pressure at 20°C for products not exceeding 0.5 L gas space capacity and 5 times charge pressure for products greater than 0.5 L gas space capacity;
  3. each article is manufactured from material which will not fragment upon rupture;
  4. each article is manufactured in accordance with a quality assurance standard acceptable to the appropriate national authority; and
  5. the design type has been subjected to a fire test demonstrating that pressure in the article is relieved, by means of a fire degradable seal or other pressure relief device such that the article will not fragment and the article does not rocket.
[4.4 A114]
Special Provision A195
A195
(371) This entry also applies to articles, containing a small pressure receptacle with a release device. Such articles must comply with the following requirements:
  1. the water capacity of the pressure receptacle must not exceed 0.5 L and the working pressure must not exceed 25 bar at 15°C;
  2. the minimum burst pressure of the pressure receptacle must be at least four times the pressure of the gas at 15°C;
  3. each article must be manufactured in such a way that unintentional firing or release is avoided under normal conditions of handling, packing, transport and use. This may be fulfilled by an additional locking device linked to the activator;
  4. each article must be manufactured in such a way as to prevent hazardous projections of the pressure receptacle or parts of the pressure receptacle;
  5. each pressure receptacle must be manufactured from material which will not fragment upon rupture;
  6. the design type of the article must be subjected to a fire test. For this test, the provisions of paragraphs 16.6.1.2 except letter g, 16.6.1.3.1 to 16.6.1.3.1.4, 16.6.1.3.6, 16.6.1.3.7 (b) and 16.6.1.3.8 of the UN Manual of Tests and Criteria must be applied. It must be demonstrated that the article relieves its pressure by means of a fire degradable seal or other pressure relief device, in such a way that the pressure receptacle will not fragment and that the article or fragments of the article do not rocket more than 10 m;
  7. the design type of the article must be subjected to the following test. A stimulating mechanism must be used to initiate one article in the middle of the packaging. There must be no hazardous effects outside the package such as disruption of the package, metal fragments or a receptacle which passes through the packaging.
The manufacturer must produce technical documentation of the design type, manufacture as well as the tests and their results. The manufacturer must apply procedures to ensure that articles produced in series are made of good quality, conform to the design type and are able to meet the requirements above. The manufacturer must provide such information to the appropriate national authority on request.
[4.4 A195]
Description:
Special Provisions—May show a single, double or triple digit number preceded by the letter “A”, against appropriate entries in the List of Dangerous Goods. This alpha-numeric indicator relates to Subsection 4.4 and applies to all the packing groups permitted for the entry concerned, unless the wording of the special provision makes it otherwise apparent.
It must be carefully noted that Special Provisions “ A1” and “ A2” are, in effect, “approvals” which may be granted by States for the carriage of dangerous goods which are normally forbidden for carriage either on passenger aircraft or on cargo aircraft. These “approvals” are not regarded as “State Exemptions” as described in 1.2.6.1. However, acceptance of dangerous goods under State approvals is at the discretion of the operator(s). Advance arrangements must be made and prior approval obtained before dangerous goods offered under “A1” or “A2” Special Provisions are presented to operators for transport. See also 1.2.6.4.
[4.1.6.13]
Column N: - ERG Code 2L [Hide]
Number: Inherent Risk - Letter(s): Additional Risks (at least one, no more than two)
2 - Gas under pressure
L - Low other risks
Description:
ERG Code—Emergency Response Drill Code as found in the International Civil Aviation Organization (ICAO) document “The Emergency Response Guidance for Aircraft Incidents Involving Dangerous Goods” (ICAO Doc. 9481-AN/928). The code consists of a combination of letters and numbers, which represents suggested responses to incidents involving the specific dangerous good entry to which the drill code is assigned.
The ERG Code is provided for the benefit of operators so that the ERG Code may be added to the Special Load—Notification to Captain (NOTOC).
[4.1.6.14]