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YS/T 237-2021 English PDF

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YS/T 237-2021: (Classification, brand and naming of mineral processing chemicals)
Status: Valid

YS/T 237: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
YS/T 237-2021English209 Add to Cart 3 days [Need to translate] (Classification, brand and naming of mineral processing chemicals) Valid YS/T 237-2021
YS/T 237-2011English319 Add to Cart 3 days [Need to translate] The classification, brand and nomenclature of the chemicals in mineral processing Obsolete YS/T 237-2011
YS/T 237-1994English239 Add to Cart 2 days [Need to translate] The classification brand and nomenclature of the mining chemicals Obsolete YS/T 237-1994

PDF similar to YS/T 237-2021


Standard similar to YS/T 237-2021

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Basic data

Standard ID YS/T 237-2021 (YS/T237-2021)
Description (Translated English) (Classification, brand and naming of mineral processing chemicals)
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H34
Word Count Estimation 9,996
Issuing agency(ies) Ministry of Industry and Information Technology

YS/T 237-2011: The classification, brand and nomenclature of the chemicals in mineral processing


---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.
The classification, brand and nomenclature of the chemicals in mineral processing ICS 71.100.40 H34 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 237-1994 Processing pharmaceutical product category, grade, name Issued on. 2011-12-20 2012-07-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard is in accordance with GB/T 1.1-2009 given rules drafted. Instead of the standard YS/T 237-1994, compared with YS/T 237-1994, the main changes are as follows. --- The standard of editorial changes; --- The new standard increased the complex hybrid pharmaceutical grade, naming; --- Appendix A to this standard normative appendix. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard is drafted by. Beijing General Research Institute of Mining and Metallurgy. The main drafters of this standard. Zhougao Yun, Sunshine, Liulong Li, Wu Xi group, has red, green Ru. This standard replaces the standards previously issued as follows. --- YS/T 237-1994; --- GB 3202-1982. Processing pharmaceutical product category, grade, name

1 Scope

This standard specifies the beneficiation pharmaceutical product classification, grades and nomenclature. This standard applies only to the current classification is mainly used as flotation reagent chemicals, grade representation and nomenclature.

2 Requirements

2.1 Classification Pharmaceutical processing in accordance with its general purpose (function) in the beneficiation process is divided into four types, code according to Table 1, series and products Species are specified in Table A.2 ~ table A.6 of. Table 1. pharmaceutical processing Categories and Chinese phonetic alphabet code Types of Chinese characters and Pinyin used Characters Pinyin Code Font Collector catch bǔ B uppercase Foaming agent from qǐ Q uppercase Adjusting agent transfer tiáo T uppercase Auxiliary aids fǔ F uppercase 2.2 grades representation Grade general agent consists of three parts, the first part of the medication type, use Hanyu Pinyin uppercase letters, respectively, B, Q, T, F. The second part shows a specific series of agents, the use of Arabic numerals, 1,2,3. The third part of the medication varieties, using Allah Bo numbers, from 01 to 600. Complex hybrid agent refers to some agents additionally add one or more (including one) other pharmaceutical chemical reactions without the risk of mixing Thereof. Mixed complex pharmaceutical grades representation. the designation confection in the main active ingredient is represented, and in front of this grade plus A F, to indicate that the drug is the main component of the agent-based complex mix of chemicals. For the different compound containing the same main ingredient Mixed agents shall be labeled with other additional information content of the main ingredient, such as the mass fraction of main component, to show the difference. Table A.6. Example 1. Type. Collector (Table 1) 1 - Series. xanthate and its derivatives (Table A.2) Variety. ethyl xanthate (Table A.2)

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Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YS/T 237-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.