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GB - Chinese national standards
Page 1452
GB/T 21828-2025 (05/10/2025)
Chemicals—Daphnia magna reproduction test
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 622.80 USD more info
GB/T 21829-2008 (12/05/2008)
Testing of chemicals - Simulation test Aerobic sewage treatment - Aactivated sludge units
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 472.80 USD more info
GB/T 21830-2008 (12/05/2008)
Testing of chemicals - Daphnia sp., acute immobilisation test
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 310.80 USD more info
GB/T 21831-2008 (12/05/2008)
Testing of chemicals - Ready biodegradability - Closed bottle test
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 304.80 USD more info
GB/T 21832.1-2018 (14/05/2018)
Welded austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 1:Tubes for heat exchanger
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 180.00 USD more info
GB/T 21832.2-2018 (14/05/2018)
Welded austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 2:Pipes for fluid transport
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 180.00 USD more info
GB/T 21832.3-2024 (25/04/2024)
Welded austenitic-ferritic(duplex) stainless steel tubes and pipes—Part 3: Pipes for oil and gas transmission
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 526.80 USD more info
GB/T 21833.1-2020 (28/04/2020)
Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 1: Tubes for heat exchanger
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 234.00 USD more info
GB/T 21833.2-2020 (28/04/2020)
Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 2: Pipes for fluid service
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 234.00 USD more info
GB/T 21833.3-2024 (25/04/2024)
Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 3:Pipes for oil and gas transmission
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 526.80 USD more info
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