Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM F1375-92(2020)
Năm ban hành 2020
Publication date
Tình trạng
A - Còn hiệu lực
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Tên tiếng Anh
Title in English Standard Test Method for Energy Dispersive X-Ray Spectrometer (EDX) Analysis of Metallic Surface Condition for Gas Distribution System Components
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 4
Giá:
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Phạm vi áp dụng
Scope of standard 1.1 This test method establishes a procedure for comparing the elemental composition of normal surfaces with any defects found on the surfaces of metal tubing, fittings, valves, or any metal component. 1.2 This test method applies to all steel surfaces of components such as tubings, connectors, regulators, and valves, regardless of size, style, or type. 1.3 Limitations: 1.3.1 This test method is intended for use by scanning electron microscope/energy dispersive x-ray spectrometer (SEM/EDX) operators with skill level typically achieved over a twelve-month period. 1.3.2 SEM used for this study should conform to those limitations outlined in Test Method F1372 and should have a minimum point-to-point resolution of 30 nm. 1.4 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only. 1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 6. 1.6 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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