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Publication year
Preview GB/T 21231.2-2018 15.3.2018
GB/T 21231.2-2018

Acoustics—Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices—Part 2: Structure-borne vibration measurements

Standard published on 15.3.2018

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electronic design (pdf) (592.80 USD)


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592.80 USD


in 4 working days
Preview GB/T 21232-2007 14.11.2007
GB/T 21232-2007

Acoustics - Guidelines for noise control in offices and workrooms by means of acoustical screens

Standard published on 14.11.2007

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electronic design (pdf) (424.80 USD)


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424.80 USD


in 3 working days
Preview GB/Z 21233-2007 14.11.2007
GB/Z 21233-2007

Acoustics - Assessment of noise annoyance by means of social and socio-acoustics surveys

Standard published on 14.11.2007

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electronic design (pdf) (376.80 USD)


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376.80 USD


in 3 working days
Preview GB/Z 21235-2007 29.10.2007
GB/Z 21235-2007

Principles and guidelines for the conduct of microbiological risk assessment

Standard published on 29.10.2007

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electronic design (pdf) (346.80 USD)


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346.80 USD


in 3 working days
Preview GB/T 21236-2007 25.10.2007
GB/T 21236-2007

Silica fume from electric-furnace

Standard published on 25.10.2007

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electronic design (pdf) (108.00 USD)


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108.00 USD


IN STOCK
Preview GB/T 21236-2026 30.4.2026
GB/T 21236-2026

Silica fume from electric-furnace
Execute Date: november 2026

Standard published on 30.4.2026

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electronic design (pdf) (262.80 USD)


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262.80 USD


in 3 working days
Preview GB/T 21237-2018 14.5.2018
GB/T 21237-2018

Wide and heavy plates for line pipe of petroleum and natural gas

Standard published on 14.5.2018

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electronic design (pdf) (382.80 USD)


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382.80 USD


in 4 working days
Preview GB/T 21237-2026 25.5.2026
GB/T 21237-2026

Wide and heavy plate for line pipe of petroleum and natural gas
Execute Date: december 2026

Standard published on 25.5.2026

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electronic design (pdf) (910.80 USD)


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910.80 USD


in 3 working days
Preview GB/T 21238-2016 14.6.2016
GB/T 21238-2016

Glass fiber reinforced plastics mortar pipes

Standard published on 14.6.2016

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electronic design (pdf) (1102.80 USD)


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1 102.80 USD


in 7 working days
Preview GB/T 21239-2022 12.10.2022
GB/T 21239-2022

Test method for compression after impact properties of fiber reinforced plastic laminates

Standard published on 12.10.2022

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electronic design (pdf) (406.80 USD)


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406.80 USD


in 4 working days

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