Bimetallic thermometer calibration standard is what?

Bimetallic thermometer calibration standards include test scope, test conditions, test standard, test steps and offices shall need equipment. 1, the bimetallic thermometer calibration scope verification of bimetallic thermometer is suitable for the measuring range in - 80 ~ + 500 ℃, composed of double metal components and sheath temperature detecting element and a circular dial bimetallic thermometer ( Hereinafter referred to as the thermometer) The verification and subsequent verification and use of inspection for the first time. 2, bimetallic thermometer calibration condition temperature: 15 ~ 35 ℃, relative humidity: 85% or less. 3, bimetallic thermometer calibration standard ( 1) Verification procedures refer to China metrology press published 'JJG226 - the People's Republic of China national metrological verification procedures 2001 '. The accuracy of the thermometer levels and the maximum permissible error ( Allowed error limits) Shall conform to table 1 accuracy degree maximum allowable error ( Range of %) /℃1. 01. 52. 02. 54. 0±1. 0±1. 5±2. 0±2. 5±4. 0 ( 2) Adjustable Angle thermometer values change caused by Angle adjustment shall not exceed the range of 1. 0%. ( 3) The back of the thermometer sent is not greater than the maximum permissible error absolute value.