T/CIRA 12-2020 Active Group standards

T/CIRA 12-2020 Industrial instrument using krypton 85 for thickness measurement

Publish Date: 2020-12-28 Implement Date: 2021-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CIRA 12-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: \nRadioactive source

ICS Name: Other standards related to nuclear energy

Publish Date: 2020-12-28

Implement Date: 2021-03-01

Scope

Scope: This document specifies the product codes and specifications, technical requirements, inspection methods, inspection rules, product marking, packaging, storage, and transportation requirements for Kr85 thickness gauging sources used in industrial instrumentation. This document applies to Kr85 thickness gauging sources prepared by vacuum processes, which are used for measuring the thickness of thin materials such as paper, plastics, leather, metal foil, and battery electrodes. Main technical contents: - Technical parameter 1: The safety performance level of the Kr85 radiation source shall be not less than C33322; - Technical parameter 2: The surface contamination limit value shall be <200 Bq; - Technical parameter 3: The leakage inspection limit value shall be <4000 Bq/24h in two inspections with a time interval of 7 days; - Technical parameter 4: The recommended service life is 10 years; - Technical parameter 5: The 85Kr concentration shall be >2%, and the remaining gases shall be non-radioactive isotope gases of Kr.