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

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China

Level / Type

National · Recommended

Issue date

October 20, 2003

Implementation date

June 1, 2004

Scope

GB/T 7973-2003 (Paper, board and pulps -- Measurement of diffuse reflectance factor (Diff/Geometry)) is available as an English-translated PDF.

GB/T 7973-2003 — 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.

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Document preview — GB/T 7973-2003

National Standard of the People's Republic of China

ICS: 85.060
Classification: Y 30
Replacing: GB/T 7973-1987

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China

What this standard covers1
Document data2
Standards quoted by this document3

What this standard covers

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

Document data

International classification (ICS): 85.060.

Chinese classification (CCS): Y30.

Estimated length of the Chinese original: 6,655 words.

Adopted international standard: ISO 2469-1994; NEQ.

Supersedes the earlier edition GB/T 7973-1987.

Standards quoted by this document

GB/T 450; GB/T 740; GB/T 1543; GB/T 2679.1; GB/T 7974; GB/T 7975; GB/T 10339

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 4 pages — is available in the English PDF.

Referenced standards

Cited by

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