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YS/T 68-2014

Chinese Standard: 'YS/T 68-2014'
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Detail Information of YS/T 68-2014; YS/T68-2014
Description (Translated English): Metallurgy
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H81
Classification of International Standard: 77.150.99
Word Count Estimation: 6,690
Date of Issue: 10/14/2014
Date of Implementation: 4/1/2015
Older Standard (superseded by this standard): YS 68-2004
Quoted Standard: GB/T 8170; YS/T 519.1; YS/T 519.2; YS/T 519.3; YS/T 519.4
Drafting Organization: Shuikoushan Hunan Nonferrous Metals Group Co., Ltd.
Administrative Organization: National non-ferrous metals Standardization Technical Committee
Regulation (derived from): People's Republic of China Ministry of Industry and Information Technology Notice 2014 No. 63; Industry Standard Filing Notice 2014 No. 12 (Overall No. 180)
Issuing agency(ies): Ministry of Industry and Information Technology of the People's Republic of China
Summary: This Standard specifies the requirements for arsenic, experimental methods, inspection rules and signs, packaging, transportation, storage, quality manuals, contracts (or orders) and safety. This Standard applies to arsenic trioxide (As2O3) as raw materia


YS/T 68-2014
Arsenic
ICS 77.150.99
H81
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS 68-2004
Issued on: 2014-10-14
2015-04-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces YS 68-2004 "arsenic", compared with YS 68-2004, this standard main changes are as follows:
--- This standard by mandatory standards to voluntary standards;
--- Categories added a grade, As98.0, and provides the corresponding impurity limits.
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized.
This standard is drafted by: Shuikoushan Hunan Nonferrous Metals Group Limited.
It participated in the drafting of this Standard: China Certification & Inspection Group Co., Ltd. Guangxi Fangchenggang CIQ.
The main drafters of this standard: Wang Ping, Zeng Ming, Zheng Xiangming, Yang Hui, Jiang Jing, Jiang Dongsheng, Wei Xin-hong.
This standard replaces the standards previously issued as follows:
--- YS 68-2004;
--- GB 3495-1983.
Arsenic range 1
This standard specifies requirements for arsenic, test methods, inspection rules and signs, packaging, transportation, storage, quality certificate, contract (or order
Single) and safety.
This standard applies to arsenic trioxide (As2O3) as raw material, sublimation, reduction, cooling and the obtained arsenic. The products are mainly used to generate
Producing alloys and semiconductor industries.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 8170 repair value expressed about the rules and limit values and judgment
YS/T 519 (all parts), chemical analysis of arsenic
3 Requirements
3.1 Categories
Arsenic chemical composition is divided into four grades: As99.5, As99.0, As98.5, As98.0.
3.2 Chemical composition
3.2.1 arsenic chemical composition shall comply with the provisions in Table 1.
Table 1 chemical composition of arsenic
Trademark
Chemical composition (mass fraction) /%
As
not less than
Impurity content of not more than
Sb Bi S
As99.5 99.5 0.2 0.08 0.1
As99.0 99.0 0.4 0.1 0.2
As98.5 98.5 0.6 0.2 0.3
As98.0 98.0 0.8 0.3 0.4
3.2.2 arsenic content and impurities are found.
3.2.3 demand side, the chemical composition of arsenic have special requirements, agreed upon by both parties.
3.3 appearance quality
3.3.1 arsenic block or granular crystal, silver gray.
3.3.2 arsenic should not be with inclusions.
Related standard:   YS/T 26-2016  YS/T 224-2016
   
 
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