GB/T 32387-2015Color assessment booth (English PDF)
通用比色箱
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2015
Implementation date
August 1, 2016
Scope
GB/T 32387-2015 is the English-translated version of 通用比色箱.
GB/T 32387-2015 is the Chinese standard "Color assessment booth". Its scope clause reads: This Standard specifies the structure, technical requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage of color assessment booth.
This Standard applies to equipment of standard visual environment required for visual color evaluation. Its clauses include terms and definitions; structure; technical requirements; test methods; inspection rules; marking, packaging, transportation and storage.
It was issued by the General Administration of Quality Supervision, Inspection and Quarantine on DECEMBER 31, 2015 and took effect on AUGUST 01, 2016.
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Document preview — GB/T 32387-2015
National Standard of the People's Republic of China
- ICS
- 17.180.20
- Classification
- N 34
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword3
- 1 Scope4
- 2 Normative references4
- 3 Terms and definitions4
- 4 Structure4
- 5 Technical requirements5
- 6 Test methods6
- 7 Inspection rules7
- 8 Marking, packaging, transportation and storage9
1 Scope
This Standard specifies the structure, technical requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage of color assessment booth.
This Standard applies to equipment of standard visual environment required for visual color evaluation.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 191, Packaging - Pictorial marking for handling of goods
GB/T 3979-2008, Methods for the measurement of object color
GB/T 5698, Glossary of color terms
GB/T 5702, Method of measuring the color rendering properties of light sources
GB/T 7921-2008, Uniform color space and color difference formula
GB/T 7922, Method of measuring color of light sources
GB/T 10111-2008, Generation of random numbers and procedures applied to sampling inspection for product quality
JJG 245, Verification regulation of illuminance meter
3 Terms and definitions
For the purpose of this document, terms and definitions given in GB/T 5698 apply.
4 Structure
The typical structure of a color assessment booth is shown in Figure 1.
5 Technical requirements
5.4.2 The background color of the color assessment booth shall be neutral, and the chroma difference delta C* shall be controlled within 1.0.
5.5 Luminosity
5.5.1 Illuminance
Under rated working conditions, the illumination of the observation surface inside the booth shall be 1 500 lx ~ 3 000 lx. The illumination inside the booth shall be evenly distributed, and the ratio of any edge illumination to the center illumination shall be within 0.8 ~ 1.1.
5.5.2 Color temperature
Under rated working conditions, the color temperature of the light source shall be within ±5% of the marked color temperature.
5.5.3 Color rendering index
Under rated working conditions, the general color rendering index Ra of the simulated CIE standard illuminant D light source shall be greater than 90.
6 Test methods
6.1 Dimensions
Use a standard gauge with a graduation value of 1.0 mm to measure the dimensions of the color assessment booth.
6.2 Appearance
When visual inspection is used to inspect the appearance of a color assessment booth, the following provisions shall be followed:
a) Ambient illumination: 100 lx ~ 500 lx;
b) The distance between the observer's eyes and the color assessment booth is approximately 0.3 m.
6.3 Light source
Use the visual method to observe whether the light source flickers or becomes bright or dark under normal working conditions. […]
6.4 Booth background
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 191Graphical symbols marking for handling and storage of packages
- GB/T 3979-2008Methods for the measurement of object color
- GB/T 5698Glossary of color terms
- GB/T 5702Method of measuring the color rendering properties of light sources
- GB/T 7921-2008Uniform color space and color difference formula
- GB/T 7922Method of measuring color of light sources
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Related Standards
GB/T 10111-2008 — Generation of random numbers and procedures applied to sampling inspection for product quality
GB/T 191-2025 — Graphical symbols marking for handling and storage of packages
GB/T 1910-2015 — Newsprint
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