GB/T 4545-2007 (English Version) Test methods for stress examination of glass containers

Standard No.: GB/T 4545-2007
Language: Chinese, Available in English version
Release Date: 2007
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 4545-2007
Replace: GB/T 4545-1984

Scope: 1.1 This standard specifies the test method for measuring the corresponding optical path difference related to the annealed state of glass bottles and cans. The following two methods are optional. Method A: Use a polarizer to compare with a set of standard sheets. Method B: direct measurement with a polarimeter. 1.2 Method A is suitable for measuring samples whose optical path difference is less than 150nm, and method B is suitable for measuring samples whose optical path difference is less than 565nm. 1.3 Method A is suitable for measuring samples whose optical path difference is less than 150nm, and method B is suitable for measuring samples whose optical path difference is less than 565nm. 1.3 When measuring the bottom stress of glass bottles and jars, the effect of glass thickness can be converted by formula (1). T=T (4.06/t).....(1) T——True stress level; T apparent stress level; t bottom thickness, in millimeters (mm). 1.4 These two test methods are suitable for evaluating glass The annealing quality of bottles and jars controls the quality of glass bottles and jars or other products composed of similar glass components.

GB/T 4545-2007 history