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GB/T 25933-2010: High-purity gold
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 25933-2010 | English | 78 |
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High-purity gold
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GB/T 25933-2010
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Basic data | Standard ID | GB/T 25933-2010 (GB/T25933-2010) | | Description (Translated English) | High-purity gold | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H68 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,642 | | Date of Issue | 2010-12-23 | | Date of Implementation | 2011-09-01 | | Quoted Standard | GB/T 25934.1; GB/T 25934.2; GB/T 25934.3 | | Regulation (derived from) | National Standard Approval Announcement 2010 No.10 (Total No.165) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the requirements for a high gold, test methods, inspection rules, signs, packaging, transport, storage, quality certificate and order form content. This standard applies to gold refining process are obtained by the total content of impurity elements of less than 10 �� 10-6. | GB/T 25933-2010: High-purity gold---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.
High-purity gold
ICS 77.120.99
H68
National Standards of People's Republic of China
High gold
Issued on. 2010-12-23
2011-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard by the National Gold Standardization Technical Committee (SAC/TC379) and focal points.
This standard is drafted by the Changchun Gold Research Institute.
This standard by the Beijing non-ferrous metal solder Dubbo limited liability company, the Shanghai Gold Exchange, Henan Zhongyuan smelter limited liability company,
Great Wall gold and silver refinery, Jiangxi Copper Corporation, Shenyang Mint participated in the drafting.
Drafters of this standard. Huang Rui, Xue Lixian, Chen Biao, Du Lianmin, rather Federation, Zhang Yuming, Liu Chengxiang, Chen Jie, Zhang Bo, Huangshao Yong, Tian Xiaohong,
Lai Maoming, Wang rain.
High gold
1 Scope
This standard specifies the requirements for high purity gold, test methods, inspection rules, marking, packaging, transportation, storage, quality certificates and orders
content.
This standard applies to gold refining process prepared by the total content of impurity elements of less than 10 × 10-6.
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 25934 (all parts) high pure gold chemical analysis method
3 Requirements
3.1 Chemical composition
3.1.1 gold high gold content of not less than 99.999 × 10-2, the impurity element mass fraction of the sum should not exceed 10 × 10-6, high purity
Golden chemical composition shall comply with the requirements in Table 1.
Table 1 chemical composition of high purity gold
Trademark
Au,
not less than
Impurity elements mass fraction/10-6, no more than
AgCuFePbBiSbSiPdMgAsSnCrNiMnCdAlPtRhIr TiZn
The total amount of impurities,
no greater than
Au99.999 99.999 × 10-2 2 1 2 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 2 1 10 × 10-6
3.1.2 high gold content of gold in Table 1 should be 100 minus the impurity elements in the difference between the sum of the measured mass fraction. When the impurity element
Found mass fraction is less than 0.2 × 10-6, the subtraction may not participate.
3.1.3 3.1.1 meet the requirements of high-grade gold and its products is Au99.999.
3.1.4 demand side, the chemical composition of the high gold impurities have special requirements, negotiated by the supply and demand sides.
3.2 Product Categories
Products classified by shape. tablet form high purity high purity gold bullion; granular high gold high gold grain.
3.3 Physical Specifications
3.3.1 High-purity gold bullion shall be rectangular, not more than the thickness of the ingot 8mm.
3.3.2 Each (piece) High gold weight. 1kg, 3kg, or other specifications.
3.3.3 should be high gold grain was nearly circular, uniform particle size.
3.4 appearance quality
3.4.1 High-purity gold bullion surface should be smooth, clean; edge, corner complete, not allowed to have glitches.
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