Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM E1335-08(2017)
Năm ban hành 2017
Publication date
Tình trạng
A - Còn hiệu lực
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Tên tiếng Anh
Title in English Standard Test Methods for Determination of Gold in Bullion by Fire Assay Cupellation Analysis
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 7
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard 1.1 These test methods cover cupellation analysis of bullion having chemical compositions within the following limits: Element Concentration Range, % Gold 0.5 to 4.0 and 20.0 to 99.8 Silver 1.0 to 99.5 Total gold plus silver 75.0 to 100.0 1.2 These test methods appear in the following order: Sections 20.0 % - 99.0 % gold 10 - 17 0.5 % - 4.0 % gold 18 - 23 98.9 % - 99.8 % gold 24 - 30 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific safety hazards, see Section 8. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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