China Standardization Technical Committee of Papermaking Industry

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Examination meeting of 20 test methods standards was held in Dec. 2003. About 40 delegates attended the meeting. Delegates were from China Standardization Technical Committee of Papermaking Industry, Entry-Exit Inspection and Quarantine Bureau, National Paper Quality Supervision Testing Center and some paper mills. Some constructive suggestions and comments were given by experts. We will submit theses test methods standards in early 2004.

   

Item

Title

GB/T 461.3

 Paper and board Determination of absorption (after immersion in water)

GB/T 464.1

Paper and board accelerated aging dry heat treatment (105 degree C)

GB/T 1543

Paper Determination of opacity (Paper backing)

GB/T 2679.7

Board Determination of puncture strength

GB/T 7975

Paper and board Determination of color (diffuse reflectance method)

GB/T 7976

Insulating paper and board ! Determination of the electrical conductivity of the water extract

GB/T 7977

Paper, board and pulp ! Determination of the electrical conductivity of the water extract

GB/T 7978

Pulps ! Determination of acid-insoluble ash

GB/T 7979

Pulps ! Determination of dichloromethane soluble matter

GB/T 8940.1

Paper and board ! Measurement of brightness (45/0)

GB/T 8941.1

Paper and board ! Measurement of specular gloss at 20 degrees

GB/T 8941.2

Paper and board ! Measurement of specular gloss at 45 degrees

GB/T 8941.3

Paper and board ! Measurement of specular gloss at 75 degrees

GB/T 8943.1

Paper, board and pulp ! Determination of copper content

GB/T 8943.2

Paper, board and pulp ! Determination of iron content

GB/T 8943.3

Paper, board and pulp ! Determination of manganese content

GB/T 8943.4

Paper, board and pulp ! Determination of calcium and magnesium content

GB/T 8944.1

Pulps ! Determination of salebable mass in lots Part 1: Pulp baled in sheet form

GB/T 8944.2

Pulps ! Determination of salebable mass in lots Part 2: Pulps (such as flash-dried pulp) baled in slabs

GB/T 12032

Paper and board ! Preparation of a offset print for test gloss