Helium, compressed

Helium (from Greek: ἥλιος, romanized: helios, lit. 'sun') is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements, and it does not have a melting point at standard pressures. It is the second-lightest and second most abundant element in the observable universe, after hydrogen. Wikipedia

Substance Data

Data from the Hazardous Materials Table

(3) Hazard Class 2.2 Non-toxic, non-flammable gases	(4) Identification number UN 1046	(5) Packing Group n/a
(6) Labels
(7) Special Provisions (§172.102)
(8) Packing Authorizations (§173.***) (8A) Exceptions 306 see 49 CFR §173.306 (8B) Non-bulk 302 see 49 CFR §173.302 (8C) Bulk 302, 314 see 49 CFR §173.302, 314
(9) Quantity Limits (9A) Passenger aircraft/rail 75 kg (9B) Cargo aircraft only 150 kg
(10) Vessel stowage (10A) Location A Stowage category “A” means the material may be stowed “on deck” or “under deck” on a cargo vessel or on a passenger vessel. Source: 49 CFR §172.101(k) (10B) Other 85 Under deck stowage must be in mechanically ventilated space. Source: 49 CFR §176.84

Segregation Chart for Load, Transport, Storage

In this table a statement is contained for each hazard class whether the loading, transport or storage with other hazard classes is allowed, is not permitted or is restricted. The table is based on U.S.-Code 49 CFR §177.848.

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Hazard Class	8	7	6.1	5.2	5.1	4.3	4.2	4.1	3	2.3B	2.3A	2.2	2.1	1.6	1.5	1.4	1.3	1.1/1.2
1.1/1.2
1.3
1.4
1.5
1.6
2.1
2.2
2.3A
2.3B
3
4.1
4.2
4.3
5.1
5.2
6.1
7
8

	May not be loaded, transported, or stored together in the same transport vehicle or storage facility.
	Load, transport, storage together is not restricted.
	Load, transport, storage together is allowed under restrictions.