Verification Scheme of Measuring Instruments for Colorimetry

JJG 2029-2006 Colorimetric Instrument Verification System Table JJG2029-2006 Standard Download Decompression Password: www.bzxz.net
This verification system table is applicable to the verification of colorimetric instruments on the surface of objects. It specifies the purpose of the national benchmark of colorimetric units, the full set of basic metrological instruments included in the benchmark, the basic metrological parameters of the benchmark, the procedure for transferring colorimetric values ​​to working metrological instruments with the help of working benchmarks and standard metrological instruments, and points out its uncertainty and basic verification methods. Colorimetric measurement is divided into surface colorimetric measurement and light source colorimetric measurement. The colorimetric measurement involved in this verification system table refers only to surface colorimetric measurement.

National Metrology Verification System Table of the People's Republic of China JJG2029-2006
Colorimetric Measuring Instruments
Measuring Instruments for Colorimetry2006-05-23 Issued
Implementation on 2006-11-23
The General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China issued JJG2029-2006
Verification Scheme of Measuring Instruments for Colorimetry
JJG2029-2006
Replaces JJG2029-1989
This verification system table was approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on May 23, 2006, and came into effect on November 23, 2006.
Responsible unit: National Technical Committee for Optical Metrology Drafting unit: China National Institute of Metrology This calibration system table is interpreted by the National Technical Committee for Optical Metrology Main drafters of this system table:
Lin Daige
Chen Xiaju
Participating drafters:
JJG2029—2006
(China National Institute of Metrology)
(China National Institute of Metrology)
(China National Institute of Metrology)
(China National Institute of Metrology)
1 Scope
2 Metrology Reference instruments
2.1 National reference for colorimetry
2.2 National working reference for colorimetry
3 Metrological standard instruments
3.1 Primary standard color plates and secondary standard color plates3.2 Measurement methods
4 Working measuring instruments
5 Colorimetric measuring instrument verification system table block diagram
JJG2029—2006www.bzxz.net
1 Scope
JJG2029—2006
Colorimetric measuring instrument verification system table
This verification system table is applicable to the verification of colorimetric measuring instruments for the surface of objects. It specifies the purpose of the national reference for colorimetric units, the full set of basic measuring instruments included in the reference, the basic metrological parameters of the reference, the procedure for transferring colorimetric values ​​to working measuring instruments with the help of working references and standard measuring instruments, and points out its uncertainty and basic verification methods, etc. Colorimetry is divided into surface colorimetry and light source colorimetry. The colorimetry involved in this verification system table refers only to surface colorimetry.
2 Measurement reference instruments
2.1 National colorimetry reference
2.1.1 The national colorimetry reference is used to reproduce the colorimetric measurement unit, and transmit the value to the whole country through the colorimetric working reference plate and the first-level standard white plate, the second-level standard white plate and the special standard reflector to ensure the accuracy and uniformity of the colorimetric value in my country. The national colorimetric reference consists of a reference device and a reference white plate. 2.1.2 The national colorimetric reference device can realize the absolute measurement of the spectral reflectance factor, and the reference white plate is an approximate perfect reflecting diffuser. The value reproduced by the national colorimetric reference is the absolute spectral diffuse reflectance factor, and the corresponding colorimetric value is calculated through the standard illuminant and standard colorimetric observer specified by the International Commission on Illumination (CIE). my country has established a national colorimetric reference under 0/d conditions. 0/d condition refers to the geometric condition of illumination/observation, that is, the light source illuminates the sample directly, and the reflected light is diffused by the integrating sphere and received by the detector. 2.1.3 The measurement range and uncertainty of the national chromaticity standard are shown in Table 1. Table 1 Uncertainty of the national chromaticity standard
Benchmark name
0/d condition National chromaticity standard
2.2 National chromaticity working standard
Measurement range
Y≥90
0.2800x, 0.4500
Uncertainty
U(Y)=0.8(K=2)
U(), U(y)=0.0022(k=2)
2.2.1 The value transfer from the standard to the working standard is carried out on the chromaticity standard device. The national chromaticity working standard is obtained by comparative measurement of the chromaticity standard value transfer device. The method is: use the spectral diffuse reflection factor of the reference plate to calibrate the colorimetric reference device within the corresponding wavelength range, and measure the spectral diffuse reflection factor of the working reference plate by comparison method.
The colorimetric reference white plate is a sulfuric acid lock spray plate, which requires a high diffuse reflection factor, good diffusion performance, and a small spectral selectivity 1
JJG2029——2006
. The stimulus value Y and color coordinates under the Dss lighting body and CIE1964 standard colorimetric observer (i.e.: 10° field of view) are in the range of: Y≥90, 0.2800
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