YS/T 856: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 856-2025 | English | RFQ |
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Silver granules
| Valid |
YS/T 856-2025
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| YS/T 856-2012 | English | 159 |
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Silver prill
| Valid |
YS/T 856-2012
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Basic data | Standard ID | YS/T 856-2025 (YS/T856-2025) | | Description (Translated English) | Silver granules | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H68 | | Classification of International Standard | 77.150.99 | | Date of Issue | 2025-04-10 | | Date of Implementation | 2025-11-01 | | Older Standard (superseded by this standard) | YS/T 856-2012 | | Issuing agency(ies) | Ministry of Industry and Information Technology | YS/T 856-2012: Silver prill---This is a DRAFT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.
Silver prill
ICS 77.150.99
H68
People's Republic of China Nonferrous Metals Industry Standard
Silver particles
Silverpril
Issued on. 2012-12-28
2013-06-01 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 by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized.
This standard is drafted by. Yunnan Copper Industry Co., Ltd., China Nonferrous Metals Industry Standards and Metrology Institute for Quality.
Participated in the drafting of this standard. Shandong Zhaojin Gold and Silver Refining Co., Sichuan Tin Chak precious metals limited liability company, Zijin Mining Group
CO., LTD.
The main drafters of this standard. Wu Zhiqing, Xu Yang Liang, Yan Hong, to Lei, Zhang Mian Hui, Zhuang Yukai, Chen Liyang, He Yongning, accounting Liao Pi.
Silver particles
1 Scope
This standard specifies the requirements for silver particles, test methods, inspection rules, marking, packaging, transportation, storage and quality certificate and contract (or order
Manifest) content.
This standard applies to all kinds of silver-containing raw materials to produce silver particles. The products are mainly used in jewelry, electronics, photography, jewelery, decoration industry.
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 4135 Silver
GB/T 8170 repair value expressed about the rules and limit values and judgment
GB/T 11067 (all parts), chemical analysis of silver
3 Requirements
3.1 Categories
Silver particles by chemical composition is divided into three grades. IC-Ag99.99, IC-Ag99.95, IC-Ag99.90.
3.2 Chemical composition
3.2.1 The chemical composition of silver particles according to GB/T 4135 requirements of.
3.2.2 IC-Ag99.99, content (mass fraction) IC-Ag99.95 grades of silver is 100% minus impurities Found specified in the table
The resulting sum, IC-Ag99.90 grade silver mass fraction is determined directly derived.
3.2.3 demand side, such as the chemical composition of the silver particles have special requirements, agreed upon by both parties.
3.3 Physical Specifications
3.3.1 granular silver particles.
3.3.2 The maximum particle size of the silver particles is not greater than 15mm, the minimum of not less than 1mm. Particle size of the silver particles can also be carried out by both supply and demand
Convention.
3.3.3 silver particles by weight of GB/T 8170 provisions of rounding to 0.1g.
3.4 Appearance
3.4.1 silver particles must not contain visible foreign inclusions.
3.4.2 The surface of the silver particles may not have dirt or grease.
4 test methods
4.1 silver particles analyzed by the chemical composition of the arbitration provision in the 11067 GB/T performed.
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