Search Result of Chinese Standard: 'YS/T 231-2015'
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | Related Standard |
| YS/T 231-2015 | English | 70 |
Add to Cart
|
0--15 minutes. Auto immediate delivery.
|
Tungsten concentrate
| Valid |
YS/T 231-2015
|
| YS/T 231-2015 | Chinese | 16 |
Add to Cart
|
<=1-day
|
[PDF from Chinese Authority, or Standard Committee, or Publishing House]
| |
|
In 0~15 minutes time, full copy of this English-PDF will be auto-immediately delivered to your email by our cloud-server.
Detail Information of YS/T 231-2015; YS/T231-2015
Description (Translated English): Tungsten concentrate
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: D43
Classification of International Standard: 73.060.99
Word Count Estimation: 6,670
Date of Issue: 2015-04-30
Date of Implementation: 2015-10-01
Older Standard (superseded by this standard): YS/T 231-2007
Quoted Standard: GB/T 1480; GB/T 4414; GB/T 6150.1; GB/T 6150.2; GB/T 6150.3; GB/T 6150.4; GB/T 6150.5; GB/T 6150.6; GB/T 6150.7; GB/T 6150.8; GB/T 6150.9; GB/T 6150.10; GB/T 6150.11; GB/T 6150.12; GB/T 6150.13; GB/T 6150.14; GB/T 6150.15; GB/T 6150.16; GB/T 6150.17; GB/T 26019
Drafting Organization: Ganzhou Nonferrous Metallurgy Research Institute
Administrative Organization: National non-ferrous metals Standardization Technical Committee
Regulation (derived from): Ministry of Industry and Information Technology Announcement (2015 No. 28)
Proposing organization: National Non-Ferrous Metals Standardization Technical Committee (SAC/TC 243)
Issuing agency(ies): Ministry of Industry and Information Technology of the People's Republic of China
Summary: This Standard specifies the tungsten concentrate requirements, test methods, inspection rules and signs, packaging, transportation, storage and quality certificate and orders (or contract) content. This Standard applies to tungsten concentrates obtained by beneficiation products, for the production of ammonium paratungstate, tungstic acid, ammonium paratungstate, tungsten oxide and other uses.
YS/T 231-2015
Tungsten concentrate
ICS 73.060.99
D43
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 231-2007
Tungsten concentrate
Issued on: 2015-04-30
2015-10-01 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.
Instead of the standard YS/T 231-2007 "tungsten concentrates."
This standard YS/T 231-2007 compared to the main changes are as follows:
--- The chemical composition made appropriate adjustments;
--- Test methods and inspection rules have been revised.
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) and focal points.
This standard was drafted: Ganzhou Nonferrous Metallurgy Research Institute, Chenzhou Diamond Tungsten Products Co., Ltd., Hunan Nonferrous Metals Co. Shizhuyuan
The company, China Molybdenum Group Co., Ltd.
The main drafters of this standard: Ye Chunsheng, Yang Xinhua, Xie Shengde, Jiangwen Wei, Zhang Bilan, Tang Desheng, Xieshi Yong, Liu Hong, Pan Jianzhong,
Zhang standard, Li Ying, Wen Zhimin, Li Chun-hai, Tian Yonghong.
This standard replaces the standards previously issued as follows:
--- YB504-65, GB 2825-1981;
--- YS/T 231-1994, YS/T 231-2007.
Tungsten concentrate
1 Scope
This standard specifies the tungsten concentrate requirements, test methods, inspection rules and signs, packaging, transportation, storage, and quality certificate and ordering
Single (or contract) content.
This standard applies to tungsten concentrate obtained by beneficiation products, for the production of ammonium paratungstate, tungstic acid, ammonium paratungstate, tungsten oxide and other uses.
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.
Determination of particle size GB/T 1480 metal powder dry sieving
GB/T 4414 Packaging tungsten concentrates sampling and sample preparation method
GB/T 6150 (all parts) Methods for chemical analysis of tungsten concentrates
Determination of GB/T 26019 high impurity Tungsten chemical analysis of tungsten trioxide content of secondary separation burning gravimetric method
3 Requirements
3.1 Categories
Tungsten concentrate according to the type of mineral wolframite and scheelite are divided into two kinds; according to chemical composition divided into premium, one, two, three, four, five, mixed
Tungsten concentrate and tungsten fine mud together, a total of 14 varieties. Mixing tungsten concentrate refers wolframite, scheelite no strict separation of tungsten concentrate. Tungsten fine mud means
Particle size less than 0.074mm [WO3 content (mass fraction) of 20% to 40%] higher impurity content of tungsten minerals.
3.2 Chemical composition
The chemical composition of tungsten concentrates comply with the requirements of Table 1. Tungsten concentrate grade calculated on a dry ore.
3.3 Water
Wolframite moisture content should not exceed 2.0%; scheelite moisture content should not exceed 3.0%.
3.4 size
Tungsten concentrate par......
|