|
|
||||||||||||||||||||||||||||||||||||||||||||||||
YS/T 318-2023 English PDFUS$159.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. YS/T 318-2023: (Copper concentrate) Status: Valid YS/T 318: Evolution and historical versions
Basic data
YS/T 318-2007: Copper concentrate---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Copper concentrate ICS 73.060 D42 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 318-1997 Copper concentrate Posted 2007-04-13 2007-10-01 implementation National Development and Reform Commission, People's Republic of China released ForewordInstead of the standard YS/T 318-1997 "copper concentrate." Compared with YS/T 318-1997 "copper concentrate", this standard the main changes are as follows. --- Grade copper concentrate from the original four grades, the main grade of 13% to 30%, into five grades, the main grade of 13% to 32%. --- Chemical composition made appropriate adjustments, an increase of Hg, F, Cd, Sb and natural radioactive elements in impurity limits section control. --- Inspection rules on the scope and be part of a revision. This standard by the National Standardization Technical Committee of non-ferrous metals and centralized. This standard by Tongling Nonferrous Metals (Group) Company is responsible for drafting. This standard by Daye Nonferrous Metals Company, Jiangxi Copper Company participated in the drafting. This standard was drafted by assisted Jinchuan Group Limited. The main drafters of this standard. Sheng Zhongyi, Bushao Tian, Li Peng Hong, and from Shao, Zhangqi Gui, Li Baodi, Pan Jie, Zhang Zelin, Lin Hsiu-ying. This standard by the National Standardization Technical Committee is responsible for interpretation of non-ferrous metals. This standard replaces the standards previously issued as follows. --- YS/T 318-1994, YS/T 318-1997. Copper concentrate1 ScopeThis standard specifies the requirements, test methods, inspection rules of copper concentrate flotation, marking, packaging, transportation and storage. This standard applies to copper ore flotation method to obtain the copper content (mass fraction) of not less than 13% for use of copper concentrate smelting copper product.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. Representation GB/T 1250 limit values and the method of determining GB/T 3884 (all parts) Methods for chemical analysis of copper concentrates GB/T 8170 numerical rounding rules GB/T 14263 bulk flotation of copper concentrate sampling, sample preparation method GB 20424-2006 heavy metal concentrate product specification limits of harmful elements GB 20664-2006 nonferrous metal minerals natural radioactivity limits YS/T 96 bulk flotation of copper concentrate, lead concentrate in gold and silver analysis method of sampling and sample preparation3 Technical requirements3.1 Categories Chemical composition of copper concentrates into one product, two products, three products, four and five product items. 3.2 Chemical composition Copper Concentrates Hg, F, Cd impurity limits should be consistent with the requirements of GB 20424-2006, the rest of the chemical composition shall comply with the requirements of Table 1. Table 1 chemical composition of copper concentrate grade Chemical composition (mass fraction) /% Cu not less than Impurity content of not more than As Pb + Zn MgO Bi + Sb First Grade 32 0.10 21 0.10 Second Grade 25 0.20 52 0.30 Grade III 20 0.20 83 0.40 Four product 16 0.30 104 0.50 Five products 13 0.40 125 0.60 3.3 gold in copper concentrates, silver as valuable elements, data analysis should be reported 3.4 copper concentrate moisture (mass fraction) not greater than 12%, the winter should not exceed 8%. 3.5 Copper Concentrates shall not be mixed foreign inclusions. The same batch of concentrate mix requirements. 3.6 Copper Concentrates natural radioactivity limits shall comply with the requirements of GB 20664-2006. ...... |