ASTM International

Standard Test Method for Measuring Optical Retardation and Analyzing Stress in Glass
 N F218

Annotation

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.

There is no known ISO equivalent to this standard.

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.

2 The boldface numbers in parentheses refer to the reports and papers appearing in the list of references at the end of this test method.

Автоматический перевод:

Метод стандартной пробы для измерения оптической разности хода и анализа напряжения в стекле

Этот метод испытаний покрывает анализ напряжения в стекле посредством поляриметра на основе принципов, развитых Джессопом и Фриделем (1, 2).2 Напряжений оценены как функция оптической разности хода, выражающейся как угол вращения поляризатора анализа, вызывающего исчезновение в стакане.