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GB/T 17608-2022: Division of variety and grading for coal products Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 17608: Historical versions
Similar standardsGB/T 17608-2022: Division of variety and grading for coal products---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT17608-2022GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 73.040 CCS D 20 Replace GB/T 17608-2006 Division of variety and grading for coal products ISSUED ON: OCTOBER 12, 2022 IMPLEMENTED ON: OCTOBER 12, 2022 Issued by: State Administration for Market Regulation; Standardization Administration of PRC. Table of ContentsForeword ... 3 1 Scope ... 5 2 Normative references ... 5 3 Terms and definitions ... 6 4 Granularity division ... 6 5 Classification of varieties ... 6 6 Division of product quality indicators ... 9 7 Test methods ... 11ForewordThis document is drafted in accordance with the provisions of GB/T 1.1-2020 “Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents”. This document replaces GB/T 17608-2006 “Division of variety and grading for coal products”. Compared with GB/T 17608-2006, except for structural adjustment and editorial revisions, the main technical changes are as follows: a) The “water-mined raw coal and low-quality coal” in the coal product category is deleted, and the ash content technical requirements for “raw coal” is changed (see Table 2; see Table 3 of the 2006 edition); b) The technical requirements for the content of harmful elements in cleaned coal products are changed (see Table 2; see Table 3 of the 2006 edition); c) The classification of ash of coking cleaned coal for smelting and other coking cleaned coal is changed (see 6.1.1; see 5.1.1 and 5.1.2 of the 2006 edition); d) The ash classification of other coal products is changed (see 6.1.2; see 5.1.4 of the 2006 edition); e) The requirements for the lower limit of calorific value of fuel coal products with high ash are changed (see 6.3; see 5.3.2 of the 2006 edition). Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document is proposed by the China Coal Industry Association. This document shall be under the jurisdiction of the National Technical Committee on Coal of Standardization Administration of China (SAC/TC42). Drafting organizations of this document: Coal Science and Technology Research Institute Co., Ltd., Coal Operation Branch of China Energy Investment Group Co., Ltd., Jinneng Holdings Coal Industry Group Co., Ltd., China Coal Huali Energy Holdings Co., Ltd., Xinjiang Tianchi Energy Co., Ltd., Huaibei Mining Holdings Co., Ltd. The main drafters of this document: Ding Hua, Bai Xiangfei, Xing Yongfeng, Ma Zhanyuan, Wang Xiaoming, Yang Xiaodong, Zhang Xu, Li Xiuchun, Guo You, Yang Xiaoyu, Wang Yu, Yang Xiaoxin, Wang Dongsheng, He Jin. The publications of previous versions of this document and the documents it replaces are as follows: Division of variety and grading for coal products1 ScopeThis document specifies the division of coal product varieties and coal quality index grades. This document applies to products of anthracite, bituminous coal, and lignite.2 Normative referencesThe following documents contain the provisions which, through normative reference in this document, constitute the essential provisions of this document. For the dated referenced documents, only the versions with the indicated dates are applicable to this document; for the undated referenced documents, only the latest version (including all the amendments) is applicable to this document. GB/T 212 Proximate analysis of coal GB/T 213 Determination of calorific value of coal GB/T 214 Determination of total sulfur in coal GB/T 216 Determination of phosphorus in coal GB/T 477 Method for size analysis of coal GB/T 3058 Determination of arsenic in coal GB/T 3558 Determination of chlorine in coal GB/T 3715 Terms relating to properties and analysis of coal GB/T 4633 Determination of fluorine in coal GB/T 16659 Determination of mercury in coal GB/T 25214 Determination of total sulfur in coal by IR spectrometry GB/T 30732 Proximate analysis of coal by instrumental method MT/T 1 Determination of refuse-content and undersize fraction of commercial coal SN/T 3521 Simultaneous determination of arsenic and mercury content in coal- ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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