GB/T 7974-2002 Replaced National standards

GB/T 7974-2002 Paper, board and pulp-Measurement of brightness—Diff/Geometry

Publish Date: 2002-10-15 Implement Date: 2003-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 7974-2002

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Paper making

ICS Name: \nPulp

Publish Date: 2002-10-15

Implement Date: 2003-04-01

Pages: 8 pages

Development Information

Word Count: 13 Thousand words Pages: 8 pages

Replace the following standards

GB 7974-1987

Superseded by the following standards

GB/T 7974-2013 Paper,board and pulps—Measurement of diffuse blue reflectance factor—D65 brightness(Diff/ Geometry,Outdoor daylight conditions)

Referenced Standards

GB/T 450-2002 Paper and board—Sampling for testing GB/T 740-1989 GB/T 7973-1987 GB/T 8940.2-2002 Pulp—Preparation of laboratory sheets for the measurement of brightness

Adopt standards

ISO 2470:1999

Related Standards

GB/T 3148-1982 Replaced

GB/T 3148-1982 Bleached sulphite reedpulp

Publish Date: 1982-07-23

GB/T 12659-1990 Replaced

GB/T 12659-1990 Pulps—Laboratory beating—Jokro mill method

Publish Date: 1990-12-28

GB/T 12660-1990 Replaced

GB/T 12660-1990 Pulps—Determination of drainability—"Canadian standard " freeness method

Publish Date: 1990-12-28

GB/T 13505-1992 Replaced

GB/T 13505-1992 Pure insulating pulp

Publish Date: 1992-06-12

GB/T 13506-1992 Replaced

GB/T 13506-1992 Bleached sulfite pulp

Publish Date: 1992-06-12

GB/T 13507-1992 Active

GB/T 13507-1992 Unbleached sulfite pulp

Publish Date: 1992-06-12