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GB/T 7973-2003 English PDF

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GB/T 7973-2003: Paper, board and pulps -- Measurement of diffuse reflectance factor (Diff/Geometry)
Status: Valid

GB/T 7973: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 7973-2003English159 Add to Cart 3 days [Need to translate] Paper, board and pulps -- Measurement of diffuse reflectance factor (Diff/Geometry) Valid GB/T 7973-2003
GB/T 7973-1987English199 Add to Cart 2 days [Need to translate] Paper board and pulps--Measurement of diffuse reflectance factor (Diff/o-Geometry) Obsolete GB/T 7973-1987

PDF similar to GB/T 7973-2003


Standard similar to GB/T 7973-2003

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Basic data

Standard ID GB/T 7973-2003 (GB/T7973-2003)
Description (Translated English) Paper, board and pulps-Measurement of diffuse reflectance factor(Diff/Geometry)
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Y30
Classification of International Standard 85.060
Word Count Estimation 6,610
Date of Issue 2003-10-20
Date of Implementation 2004-06-01
Older Standard (superseded by this standard) GB/T 7973-1987
Quoted Standard GB/T 450; GB/T 740; GB/T 1543; GB/T 2679.1; GB/T 7974; GB/T 7975; GB/T 10339
Adopted Standard ISO 2469-1994; NEQ
Regulation (derived from) Chinese national standard approved by the announcement in 2003 No. 14 (No. 62 overall)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary This standard specifies: fixed side of paper, paperboard and pulp operations reflectance factor check the condition, such instruments spectrum, geometric and photometric characteristics and the standard values ??- delivery methods. Diffuse reflectance factor measuring the optical properties can be obtained by the following: pulp, paper and paperboard diffuse blue reflectance factor (Blu-ray brightness), color, light scattering and absorption coefficients and paper opacity. This standard applies to

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