2.2.3. Hazard Communication
Label elements shall be used for substances and mixtures meeting the criteria for classification in this hazard class in accordance with Table 2.2.3.
Table 2.2.2
Label elements for flammable gases
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Category 1A |
Gases categorised as 1A meeting pyrophoric or unstable gas A/B criteria |
Category 1B |
Category 2 |
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Pyrophoric gas |
Chemically unstable gas |
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Category A |
Category B |
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GHS Pictogram |
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No pictogram |
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Signal Word |
Danger |
Danger |
Danger |
Danger |
Danger |
Warning |
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Hazard Statement |
H220: Extremely flammable gas |
H220: Extremely flammable gas. H232: May ignite spontaneously if exposed to air |
H220: Extremely flammable gas. H230: May react explosively even in the absence of air |
H220: Extremely flammable gas. H231: May react explosively even in the absence of air at elevated pressure and/or temperature |
H221: Flammable gas |
H221: Flammable gas |
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Precautionary Statement Prevention |
P210 |
P210 P222 P280 |
P202 P210 |
P202 P210 |
P210 |
P210 |
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Precautionary Statement Response |
P377 P381 |
P377 P381 |
P377 P381 |
P377 P381 |
P377 P381 |
P377 P381 |
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Precautionary Statement Storage |
P403 |
P403 |
P403 |
P403 |
P403 |
P403 |
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Precautionary Statement Disposal |
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If a flammable gas or gas mixture is classified as pyrophoric and/or chemically unstable, then all relevant classification(s) shall be communicated on the safety data sheet as specified in Annex II of Regulation (EC) No 1907/2006, and the relevant hazard communication elements included on the label.
The classification procedure is set out in the following decision logic (see Figure 2.2.1).
Figure 2.2.1
Flammable gases
(1) In the absence of data on its pyrophoricity, a flammable gas mixture shall be classified as a pyrophoric gas if it contains more than 1 % (by volume) of pyrophoric component(s).
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