Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM F218-13
Năm ban hành 2013
Publication date
Tình trạng
W - Hết hiệu lực
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Tên tiếng Anh
Title in English Standard Test Method for Measuring Optical Retardation and Analyzing Stress in Glass
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Chỉ số phân loại Quốc tế (ICS)
By field
81.040.01 - Thuỷ tinh nói chung
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Số trang
Page 8
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard 1.1 This test method covers the analysis of stress in glass by means of a polarimeter based on the principles developed by Jessop and Friedel (1, 2).2 Stress is evaluated as a function of optical retardation, that is expressed as the angle of rotation of an analyzing polarizer that causes extinction in the glass. 1.2 There is no known ISO equivalent to this standard. 1.3 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. |