What is the legal basis stating that hydrogen peroxide falls under Category A? ? Urgent! Urgent! Urgent! !

It is related to the hydrogen peroxide concentration; higher concentrations result in stronger oxidizing properties

GB 50016 Code for Fire Protection Design of Buildings

Catalog of Hazardous Chemicals 2022: Hydrogen peroxide solutions with a concentration of ≥60% – oxidizing liquids, Category 1. Interpretation of the provisions in the Code for Fire Protection Design of Buildings GB50016-2014 (2018 edition), 3.1.3 Classification of fire hazard: The method for classifying stored items is primarily based on the fire hazard associated with those items themselves, in accordance with the classification system for fire hazards specified in this code. It also takes into account experience in warehouse storage management, as well as China’s Rules for the Transport of Dangerous Goods.     1) The classification of Class A stored items is primarily based on the characteristics of Class 1 flammable solids, Class 1 flammable liquids, Class 1 oxidizing agents, Class 1 self-igniting substances, Class 1 water-reactive substances, and gaseous fuels as defined in China’s Rules for the Transport of Dangerous Goods. Such items are flammable and explosive, and they produce large amounts of harmful gases when burned. Some react violently when exposed to water, producing hydrogen or other flammable gases, which can cause combustion and explosion when ignited ； Some have strong oxidizing properties and can easily catch fire and explode when in contact with organic or inorganic substances ； Some may explode due to heat, impact, catalysis, or gas expansion, or they can easily reach an explosive concentration when mixed with air and explode upon exposure to fire.

For a more authoritative source, see [Huaan HSE Q&A] (Issue No. 88). Keywords: chemicals with explosive properties, shift handover, identification of major hazard sources related to ammonia water, 30% acrylamide, crude benzene, 27.5% hydrogen peroxide. Hebei Anke, August 19, 2022, 18:08, Hebei. [Question 31] Is the fire hazard category of 27.5% hydrogen peroxide classified as Class A? 【Answer】The fire hazard category of 27.5% hydrogen peroxide is classified as Class B. Criterion 1: The fire hazard category of a substance is primarily determined based on its physical hazards. The \"Notice on the Implementation Guidelines (Trial) for the Catalogue of Hazardous Chemicals (2015 Edition)\\" (An Jian Zong Tang Guan San [2015] No. 80) specifies the physical hazards of hydrogen peroxide at different concentrations as follows: ① Concentration ≥60%: Oxidizing liquid, Category 1 ； ②20% ≤ content < 60%: Oxidizing liquid, Category 2 ； ③8% ≤ content < 20%: Oxidizing liquid, Category 3. That is, 27.5% hydrogen peroxide falls under the physical hazard category of oxidizing liquids, Category 2. Reference 2: Appendix D of the \"Specifications for the Classification and Labelling of Chemicals – Part 14: Oxidizing Liquids\" (GB 30000.14-2013) provides the following hazard statements for oxidizing liquids: Oxidizing liquids, Category 1: May cause fire or explosion ； For strong oxidizing agents ； Oxidizing liquids, categories 2, 3: may intensify combustion ； As an oxidizing agent. That is, the hazard statement for 27.5% hydrogen peroxide is: may intensify combustion ； As an oxidizing agent. Criterion 3: In accordance with Article 4.6.3.2 of the \"Classification and Labelling of Dangerous Goods\" (GB 6944-2012), items whose hazard category is \"Oxidizing liquids, Category 2\" are classified as Category II in terms of packaging. Criterion 4: According to the List of Dangerous Goods (GB 12268-2012), hydrogen peroxide with a concentration of 20% to 60% has oxidizing properties; it is classified under category 5.1 and is packaged in Class II containers. Reference 5: Clause 3.1.3 of the explanatory notes to the \"Code for Fire Protection Design of Buildings\" (GB 50016-2014, 2018 edition) specifies, in item 2 of item (1) regarding the principles for classifying the fire hazard of stored items, that Class B stored items are classified primarily based on oxidizers of Grade II as defined in China’s \"Rules for the Transport of Dangerous Goods\". For reference!