GB18218-2014 Identification of Major Hazard Sources for Hazardous Chemicals

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This post was last edited by liaifeng on 2018-8-11 09:43. Identification of Major Hazard Sources of Hazardous Chemicals GB18218-2014 – Published on March 31, 2014; implemented on July 1, 2014. Preface: All technical requirements specified in this standard are mandatory. This standard replaces GB18218—2009 \"Identification of Major Hazard Sources\". The main changes in this standard compared to GB18218—2009 are as follows: ———The standard title has been changed to “Identification of Major Hazard Sources for Hazardous Chemicals” ； ———Processing processes and storage activities involving hazardous chemicals in the mining industry have been included within the scope of application ； ———The scope of non-applicability has been expanded to offshore oil and gas extraction activities ； ———Some terms and definitions have been revised ； ———The scope of hazardous chemicals has been revised ； ———The critical quantities for hazardous chemicals have been revised ； ———The distinction between critical quantities in production areas and storage areas has been removed. This standard was proposed by the **State Administration of Work Safety. This standard is under the jurisdiction of the Sub-Technical Committee for Chemical Safety Standardization (TC288/SC3) of the National Technical Committee for Work Safety Standardization. The organization responsible for drafting this standard is the China Academy of Work Safety Science. The drafting unit of this document is Sinopec Qingdao Safety Engineering Research Institute. Main drafters of this standard: Wu Zongzhi, Wei Lijun, Liu Ji, Duo Yingquan, Shi Lichen, Gao Jindong, Sun Meng, Yu Lijian, Zhang Haifeng, Yang Chunsun, Peng Xiangwei. This standard was first published in 2009; this revision is the second one. Identification of Major Hazard Sources for Hazardous Chemicals 1 Scope This standard specifies the criteria and methods for identifying major hazard sources of hazardous chemicals. This standard applies to various enterprises or organizations involved in the production, use, storage, and handling of hazardous chemicals. This standard does not apply to: a) nuclear facilities and plants that process radioactive materials, except for the departments in such facilities and plants that handle non-radioactive materials ； b) **Facilities ； c) Mining industry, except for processing processes and storage activities involving hazardous chemicals ； d) Transportation of hazardous chemicals ； e) Offshore oil and gas exploration activities. 2 Normative reference documents The provisions in the following documents become provisions of this standard through reference to it. For any referenced documents dated, all subsequent amendment sheets (excluding corrections) or revised versions are not applicable to this standard; however, parties reaching an agreement under this standard are encouraged to consider whether the latest versions of such documents can be used. For reference documents without a date, the latest version applies to this standard. GB12268 List of Names of Dangerous Goods GB20592 Safety Regulations on Classification, Hazard Labels and Hazard Statements of Chemicals Acute Toxicity 3 Terms and Definitions The following terms and definitions apply to this standard. 3.1 Hazardous chemicals: Chemicals that possess properties such as flammability, explosiveness, toxicity, or harmfulness, and can cause damage to people, facilities, and the environment. 3.2 Unit: One set of production equipment, facilities, or premises, or several sets of such equipment, facilities, or premises that belong to the same production and operation unit and are within a distance of less than 500 m from each other. 3.3 Critical quantity: The specified amount for a certain hazardous chemical or category of hazardous chemicals; if the amount of such chemicals in a unit is equal to or exceeds this amount, then that unit is considered a major hazard source. 3.4 Major Hazard Sources of Hazardous Chemicals: Units that produce, process, use, or store hazardous chemicals on a permanent or temporary basis, and in which the quantity of such chemicals is equal to or exceeds the critical level. 4 Identification of major hazardous sources of hazardous chemicals 4.1 Basis for identification 4.1.1 The basis for identifying major hazardous sources of hazardous chemicals is the hazardous properties of those chemicals along with their quantities, as detailed in Tables 1 and 2. 4.1.2 The method for determining the critical quantity of hazardous chemicals is as follows: a) For hazardous chemicals within the range of Table 1, their critical quantities are determined according to Table 1 ； b) For hazardous chemicals not covered in Table 1, the critical quantity is determined according to Table 2 based on their level of hazard ； If a hazardous chemical has multiple hazards, the determination is based on the lowest critical value among them. Table 1 Names of Hazardous Chemicals and Their Critical Quantities Sequence Number Category Name and Description of Hazardous Chemical Critical Quantity (T) 1 Explosives Barium azide 0.5 2 Lead azide 0.5 3 Mercuric fulminate 0.5 4 Trimethyl ether 5 5 Trinitrotoluene 5 6 Glycerin nitrate 1 7 Cellulose nitrate 10 8 Anhydrous acetic acid (with >0.2% combustible substances) 5 9 Flammable gases Butadiene 5 10 Dimethyl ether 50 11 Methane, natural gas 50