What is the fire hazard category of 35% hydrogen peroxide?
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What fire hazard category should be assigned to a warehouse storing 35% hydrogen peroxide? Which provision is the basis for this?
A content of 60%~100% constitutes an explosive, while 40%~60% classifies it as a Class 1 oxidizer. Commercially available industrial products have concentrations of 27.5% and 35%, and are classified as Category A. Hydrogen peroxide is a fire hazard substance of \"Class A\"; Appendix 4 provides an example classifying it as \"Class A, Item 5\". The Classification and Labelling of Dangerous Goods (GB 13690-92) assigns this substance to Category 5.1 – Oxidizers. Hydrogen peroxide is a fire hazard substance of \"Class A\"; in Appendix 4, examples provide the classification \"Class A, Item 5\". The Classification and Labelling of Common Hazardous Chemicals (GB 13690-92) assigns this substance to Category 5.1 – Oxidizers
However, in terms of actual oxidizing power classification, hydrogen peroxide with a concentration of 20–60 is classified as a Category 2 oxidizer, while those with a concentration above 60 are classified as Category 1 oxidizers. The regulations establish definitions for primary and secondary oxidizers; yet the classification outlined in the general transportation rules referenced therein is consistent with the classification standards for other hazardous chemicals currently in use
Same question – I’ve been checking all the time, and there is absolutely no Appendix 4 in the building codes
The 1987 version of the Building Code contained Appendix 4, titled \"Examples of Classification of Fire Hazards for Stored Goods.\" Starting with the 2006 version, this appendix was removed and incorporated into the explanatory notes. On the other hand, as for the \"Rules for the Transport of Dangerous Goods\" mentioned in the building codes, it is not clear which specific document or standard is referred to. The only documents that can be found at present are the \"Rules for the Transport of Dangerous Goods by Waterway (Part 1: Rules for the Transport of Packaged Dangerous Goods by Waterway)\\", issued on November 4, 1996, under Ministry of Transport Order No. 10 of 1996, and the Ministry of Transport standard \"Rules for the Transport of Dangerous Goods by Road.\" The available documents are not complete, and it is not known whether they contain relevant information