GB/T 25211-2023 PDF EnglishUS$245.00 · In stock · Download in 9 seconds
GB/T 25211-2023: Classification and quality requirements of semi-coke 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 25211: Historical versions
Similar standardsGB/T 25211-2023: Classification and quality requirements of semi-coke---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/GBT25211-2023GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 75.160.10 CCS D 20 Replacing GB/T 25211-2010, GB/T 25212-2010 Classification and quality requirements of semi-coke ISSUED ON: SEPTEMBER 07, 2023 IMPLEMENTED ON: APRIL 01, 2024 Issued by: State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword ... 3 1 Scope ... 5 2 Normative references ... 5 3 Terms and definitions ... 6 4 Quality grades ... 7 5 Quality requirements ... 8 6 Test methods ... 13 7 Quality inspection ... 14 8 Transportation and storage ... 14 Classification and quality requirements of semi-coke1 ScopeThis document specifies the quality grades, quality requirements, test methods, quality inspection and acceptance, transportation and storage of semi-coke products. This document applies to all types of semi-coal products.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document. GB/T 211, Determination of total moisture in coal 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 219, Determination of fusibility of coal ash GB/T 474, Method for preparation of coal sample GB/T 475, Method for manual sampling of commercial coal GB/T 1574, Test method for analysis of coal ash GB/T 2565, Determination of grindability index of coal - Hardgrove method GB/T 3058, Determination of arsenic in coal GB/T 3558, Determination of chlorine in coal GB/T 16659, Determination of mercury in coal GB/T 19494.1, Mechanical sampling of coal - Part 1: Method for sampling GB/T 19494.2, Mechanical sampling of coal - Part 2: Method for sample preparation GB/T 24521, Method for the determination of specific resistance of carbon raw materials and coke GB/T 25214, Determination of total sulfur in coal by IR spectrometry GB/T 30732, Proximate analysis of coal - Instrumental method3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply. 3.1 semi-coke A low-volatility solid carbon product obtained by pyrolyzing high-volatile bituminous coal with no or weak cohesiveness under medium and low temperature conditions. 3.2 mixed semi-coke Semi-coke products with a particle size of “less than 50 mm” or “less than 80 mm” that have not been crushed and screened. 3.3 sized semi-coke Semi-coke products with particle size greater than or equal to 6 mm. 3.4 large-size semi-coke Semi-coke products with particle size greater than 25 mm. 3.5 medium-size semi-coke Semi-coke products with particle size greater than 13 mm and less than 25 mm. 3.6 small-size semi-coke ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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