The 32 national standards for papermaking issued b

2022-08-07
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Ministry of industry and information technology: 32 national standards for papermaking have been implemented since May 1.

the National Standardization Management Committee approved and issued 32 national standards for the papermaking industry on nth= "8" year= "2008"> August 19, 2008, including 7 product standards such as coated paper and paperboard coated carton board, capacitor paper and writing paper, and 25 test method standards such as determination of bending stiffness of paper and paperboard and determination of tensile strength of paper and paperboard, This batch of standards will be implemented from nth= "5" year= "2009"> May 1, 2009. Specific standard No See the following table for the standard name and substitute standards:

standard number

standard name

substitute standard number

gb/t 3148 2008

bleached reed pulp

gb/t 3148 1982

gb/t 8938 2008

typing paper

gb/t 8938 1988

gb/t 10335.5 2008

coated paper and paperboard

gb/t 11541 2008

photographic base paper

gb/t 11541 1989

gb/t 12654 2008

writing paper

gb/t 12654 1990

gb/t 12913 2008

capacitor paper

gb/t 12913 1991, gb/t12656 1990, gb/t12657 1990

gb/t 13506 2008

bleached sulfite wood pulp

gb/t 13506 1992

gb/t 450 2008

sampling of paper and paperboard and determination of vertical, horizontal and positive and negative sides of samples

gb/t450 2002, gb/t 452.12 domestic engineering material suppliers are relatively guaranteed in terms of cost and delivery time,

gb/t 452.2 2002

gb/t 457 2008

determination of folding resistance of paper and paperboard

gb/t1538 1979, gb/t 2679.5 1995,

gb/t 457 2002

gb/t 458 2008

the most commonly used force sensors for determination of air permeability of paper and paperboard are strain gage sensors

gb/t2679.13 1996, gb/t 458 2002,

gb/t 5402 2003

can easily be mixed into other recovery streams gb/t 460 2008

determination of sizing degree of paper

gb/t 460 2002, gb/t 5405 2002

gb/t 462 2008

determination of moisture in analytical samples of paper, paperboard and pulp

gb/t 462 2003, Gb/t 741 2003

gb/t 465.1 2008

paper and board Determination of bursting resistance after immersion in water

gb/t 465.1 1989

gb/t 465.2 2008

paper and board Determination of tensile strength after immersion in water

gb/t 465.2 1989

gb/t 742 2008

paper raw materials, pulp, paper and board Determination of ash

gb/t2677.3 1993, gb/t 742 2003

gb/t 1545 2008

paper Determination of acidity or alkalinity of water extracts from paperboard and pulp

gb/t1545.1 2003, gb/t 1545.2 2003

gb/t 2679.11 2008

qualitative analysis of inorganic fillers and inorganic coatings in paper and paperboard electron microscope/x-ray spectrometry

gb/t 2679.11 1993

gb/t 8944.1 2008

determination of mass sales quality of pulp Part 1: pulp board pulp package and pulp block (sudden drying pulp) pulp package

gb/t8944.1 1988, Gb/t 8944.2 1988

gb/t 10337 2008

determination of acid soluble lignin in papermaking raw materials and pulps

gb/t 10337 1989

gb/t 10338 2008

determination of carboxyl content of pulps

gb/t 10338 1989

gb/t 10340 2008

determination of filtration rate of paper and paperboard

gb/t 10340 1989

gb/t 10741 2008

determination of benzene alcohol extract from pulp

gb/t 10741 1989

gb/t 10742 2008

raw material fruit for papermaking Determination of gum content

gb/t 10742 1989

gb/t 12033 2008

determination of carbohydrate components in papermaking raw materials and pulps by gas chromatography

gb/t 12033 1989

gb/t 12658 2008

determination of sodium content in paper, paperboard and pulps

gb/t 12658 1990

2 Wood pulp and finished paper: the current tax rate of main wood pulp varieties is 5% Grinding method

gb/t 12659 1990

gb/t 12660 2008

determination of water filtration performance of pulp Canadian standard freeness method

gb/t 12660 1990

gb/t 12661 2008

determination of total bacterial count of paper and paperboard

gb/t 12661 1990

gb/t 12914 2008

determination of tensile strength of paper and paperboard

gb/t 12914 1991, Gb/t 453 2002

gb/t 22363 2008

determination of roughness of paper and board (air leakage method) Bentsen method and printing surface method

gb/t2679.4 1994, gb/t 2679.9 1993

gb/t 22364 2008

determination of bending stiffness of paper and board

gb/t12909 1991, gb/t 2679.3 1996

gb/t 22365 2008

determination of printing surface strength of paper and board determination

gb/t2679.15 1997, gb/t 2679.16

1997

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