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Publication year
Preview GB 21520-2023 23.5.2023
GB 21520-2023

Minimum allowable values of energy efficiency and energy efficiency grades for displays

Standard published on 23.5.2023

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electronic design (pdf) (366.00 USD)


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366.00 USD


IN STOCK
Preview GB 21521-2014 28.4.2014
GB 21521-2014

Minimum allowable values of energy efficiency and energy efficiency grades for copy machines, printers and fax machines

Standard published on 28.4.2014

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electronic design (pdf) (102.00 USD)


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102.00 USD


IN STOCK
Preview GB 21522-2024 28.11.2024
GB 21522-2024

Emission standard of coalbed methane/coal mine gas

Standard published on 28.11.2024

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electronic design (pdf) (166.80 USD)


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166.80 USD


in 3 working days
Preview GB 21523-2024 28.10.2024
GB 21523-2024

Effluent standards of pollutants for pesticides industry

Standard published on 28.10.2024

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electronic design (pdf) (430.80 USD)


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430.80 USD


in 4 working days
Preview GB/T 21524-2008 1.4.2008
GB/T 21524-2008

Particle size determination of inorganic chemical products - Sieving method

Standard published on 1.4.2008

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electronic design (pdf) (138.00 USD)


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138.00 USD


IN STOCK
Preview GB/T 21525-2008 1.4.2008
GB/T 21525-2008

Inorganic chemical products for industrial use - General method for determination of magnesium content by complexation titration

Standard published on 1.4.2008

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electronic design (pdf) (166.80 USD)


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166.80 USD


in 3 working days
Preview GB/T 21526-2025 29.8.2025
GB/T 21526-2025

Structural adhesives—Directives for the surface preparation of metals and plastics prior to adhesive bonding

Standard published on 29.8.2025

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electronic design (pdf) (814.80 USD)


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814.80 USD


in 5 working days
Preview GB/T 21527-2008 1.4.2008
GB/T 21527-2008

Elastic pads for rail transit fasten system

Standard published on 1.4.2008

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electronic design (pdf) (394.80 USD)


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394.80 USD


in 3 working days
Preview GB/T 21528-2008 9.4.2008
GB/T 21528-2008

Bee products production management regulation

Standard published on 9.4.2008

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electronic design (pdf) (274.80 USD)


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274.80 USD


in 3 working days
Preview GB/T 21529-2008 1.4.2008
GB/T 21529-2008

Determination of water vapour transmission rate for plastic film and sheeting - Electrolytic detection sensor method

Standard published on 1.4.2008

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electronic design (pdf) (358.80 USD)


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358.80 USD


in 3 working days

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Latest update: 2026-08-26 (Number of items: 2 298 418)
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