IS 9153 : 2023 Methods of Polariscopic Examination of Glassware

ICS 81.040.30

CHD 10

1 SCOPE

1.1 This standard prescribes methods of polariscopic examination of glassware for determining the relative annealing strain in them.

1.2 Two methods are prescribed. Method A is based on comparison with standard strain discs using a polariscope and method B on measurement of strain using a polarimeter.