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GB - Chinese national standards - Page 5388

Standards GB - Chinese national standards - Page 5388

Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level. Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document

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Publication year
Preview GB/T 7971-2007 5.12.2007
GB/T 7971-2007

Semiconducting electric cable paper

Standard published on 5.12.2007

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310.80 USD


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Preview GB/T 7973-2003 20.10.2003
GB/T 7973-2003

Paperboard and pulps--Measurement of diffuse reflectance factor(Diff/Geometry)

Standard published on 20.10.2003

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electronic design (pdf) (190.80 USD)


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190.80 USD


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Preview GB/T 7974-2013 10.10.2013
GB/T 7974-2013

Paper, board and pulps - Measurement of diffuse blue reflectance factor - D65 brightnessDiff/Geometry,Outdoor daylight conditions

Standard published on 10.10.2013

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electronic design (pdf) (274.80 USD)


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274.80 USD


in 3 working days
Preview GB/T 7975-2005 26.9.2005
GB/T 7975-2005

Paper and board-Determination of color(diffuse reflectance method)

Standard published on 26.9.2005

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electronic design (pdf) (250.80 USD)


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250.80 USD


in 3 working days
Preview GB/T 7975.1-2026 25.5.2026
GB/T 7975.1-2026

Paper and board—Determination of color—Diffuse reflectance method—Part 1: Indoor daylight conditions (C/2°)
Execute Date: december 2026

Standard published on 25.5.2026

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430.80 USD


in 3 working days
Preview GB/T 7977-2007 5.12.2007
GB/T 7977-2007

Paper,board and pulps - Determination of conductivity of aqueous extracts

Standard published on 5.12.2007

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electronic design (pdf) (286.80 USD)


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286.80 USD


in 3 working days
Preview GB/T 7977-2026 25.5.2026
GB/T 7977-2026

Paper, board and pulps—Determination of conductivity of aqueous extracts
Execute Date: december 2026

Standard published on 25.5.2026

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electronic design (pdf) (262.80 USD)


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262.80 USD


in 3 working days
Preview GB/T 7978-2005 26.9.2005
GB/T 7978-2005

Pulps-Determination of acid-insoluble ash

Standard published on 26.9.2005

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electronic design (pdf) (226.80 USD)


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226.80 USD


in 3 working days
Preview GB/T 7978-2026 30.4.2026
GB/T 7978-2026

Pulps—Determination of acid-insoluble ash
Execute Date: november 2026

Standard published on 30.4.2026

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262.80 USD


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Preview GB/T 7979-2020 21.7.2020
GB/T 7979-2020

Pulp—Determination of dichloromethane soluble matter

Standard published on 21.7.2020

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electronic design (pdf) (132.00 USD)


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132.00 USD


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