GB/T 7973-1987Paper board and pulps--Measurement of diffuse reflectance factor (Diff/o-Geometry) (English PDF)
纸浆、纸及纸板 漫反射因数测定法(漫射/垂直法)
GB/T 7973 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 7973-2003 | Paper, board and pulps - Measurement of diffuse reflectance factor(Diff/Geometry) | Valid |
| GB/T 7973-1987 | Paper board and pulps--Measurement of diffuse reflectance factor (Diff/o-Geometry) | Obsolete |
GB/T 7973-1987 is obsolete. It has been replaced by GB/T 7973-2003. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
National Bureau of Standards
Level / Type
National · Recommended
Issue date
June 26, 1987
Implementation date
January 1, 2003
Scope
GB/T 7973-1987 is the English-translated version of 纸浆、纸及纸板 漫反射因数测定法(漫射/垂直法).
GB/T 7973-1987 is the Chinese national standard "Paper board and pulps--Measurement of diffuse reflectance factor (Diff/o-Geometry)". It was issued on June 26, 1987 by the National Bureau of Standards, and took effect on January 1, 2003. It is obsolete: it has been replaced by GB/T 7973-2003.
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Document preview — GB/T 7973-1987
National Standard of the People's Republic of China
Issued by: National Bureau of Standards
Contents
- Document data
1 Document data
Sector: National standard (Recommended).
Issuing body: National Bureau of Standards.
Date of issue: 1987-06-26.
Date of implementation: 2003-01-01.
Status: obsolete, replaced by GB/T 7973-2003.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
Referenced standards
Cited by
- GB/T 1543-2026Paper and board - Determination of opacity(paper backing) - Diffuse reflectance method
- GB/T 4687-2026Paper, board, pulps and related terms
- GB/T 7975.1-2026Paper and board - Determination of color - Diffuse reflectance method - Part 1: Indoor daylight conditions(C/2°)
- GB/T 12911-2025Paper and board - Determination of the ink absorbency
- GB/T 46184-2025Paper and board - Tests for colour fastness
- GB/T 43856-2024Graphic technology - Colour conformity of printing workflows
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GB/T 7973-1987
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