JJG 2020-1989 Active National Metrology and Inspection Regulations JJG

JJG 2020-1989 273.15～903.89 K Temperature Measuring Instruments

Publish Date: 1989-06-22 Implement Date: 1990-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: JJG 2020-1989

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 1989-06-22

Implement Date: 1990-04-01

Publisher: The National Technical Supervision Bureau

Pages: 7 pages

Scope

The temperature scale is a unified method of expressing temperature values. The temperature scale currently implemented in China is the International Practical Temperature Scale of 1968 (revised in 1975), hereinafter referred to as IPTS-68. The temperature measurement instrument verification system for temperatures ranging from 273.15 to 903.89 K was established based on IPTS-68. It is an important basis for transferring temperature values from national reference instruments to working measurement instruments through fixed-point methods and comparison methods at various levels of measurement standards.