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GHS Category--Oxidizing Liquids
Posted Date:2022/7/29
GHS Definition:
Oxidizing liquids are liquids that are not necessarily flammable themselves, but generally produce oxygen that causes or contributes to the combustion of other substances.
Oxidizing liquid standard:
Category
|
Standard
|
1
|
Any substance or mixture, which is tested by mixing the substance (or mixture) with cellulose in a ratio of 1:1 by mass, can spontaneously ignite; or after the substance and cellulose are mixed in a ratio of 1:1 by mass, the average pressure rise time is less than Average pressure rise time after mixing 50% perchloric acid and cellulose in a ratio of 1:1 by mass;
|
2
|
Any substance or mixture, which is tested by mixing the substance (or mixture) and cellulose in a ratio of 1:1 by mass, shows an average pressure rise time less than or equal to the ratio of 40% aqueous sodium chlorate solution and cellulose in a ratio of 1:1 by mass Average pressure rise time after proportional mixing; and does not meet the criteria for Category 1;
|
3
|
Any substance or mixture that is tested by mixing the substance (or mixture) with cellulose in a ratio of 1:1 by mass and showing an average pressure rise time less than or equal to 65% aqueous nitric acid and cellulose in a ratio of 1:1 by mass The mean pressure rise time after, and does not meet the criteria for categories 1 and 2
|
Examples of oxidizing liquids:
▪Perchloric acid
▪Perchloric acid
▪Perchloric acetic anhydride solution
▪Lithium peroxide
▪Magnesium peroxide
▪Calcium chlorate solution
▪Potassium chlorate solution
Labeling and classification of oxidizing liquids:
Classification
|
Label
|
Hazard statement code
|
Hazard category
|
Hazard classification
|
Pictograms
|
Signal word
|
Hazard statement
|
GHS
|
United Nations Model Regulations
|
Oxidizing liquid
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1
|
|
|
Danger
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May cause fire or explosion; strong oxidizer
|
H271
|
2
|
|
|
Danger
|
May intensify combustion; oxidizer
|
H272
|
3
|
|
|
Warn
|
May intensify combustion; oxidizer
|
H272
|