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GB - Chinese national standards
Page 1341
GB/T 20931.7-2007 (30/04/2007)
Methods for chemical analysis of lithium - Determination of nickel content - -Furil dioxime spectrophotometric method
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 4 049.20 CZK more info
GB/T 20931.8-2007 (30/04/2007)
Methods for chemical analysis of lithium - Determination of chlorine content - Thiocyanate spectrophotometric method
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 4 049.20 CZK more info
GB/T 20931.9-2007 (30/04/2007)
Methods for chemical analysis of lithium - Determination of nitrogen content - Mercuric potassium iodide spectrophotometric method
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 4 813.10 CZK more info
GB/T 20932-2025 (31/10/2025)
Pig-irons—Definition and classification
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 5 067.80 CZK more info
GB/T 20933-2021 (11/10/2021)
Hot rolled sheet pile
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 5 857.30 CZK more info
GB/T 20934-2016 (29/08/2016)
Steel tie rod
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 9 142.40 CZK more info
GB/T 20935-2025 (29/08/2025)
Metal materials—Method of electromagnetic acoustic inspection
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 11 179.70 CZK more info
GB/T 20936.1-2022 (30/12/2022)
Gas detectors for explosive atmospheres—Part 1: Performance requirements of detectors for flammable gases
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 19 074.30 CZK more info
GB/T 20936.2-2024 (15/03/2024)
Gas detectors for explosive atmospheres—Part 2: Selectioninstallationuse and maintenance of detectors for flammable gases and oxygen
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 42 248.80 CZK more info
GB/T 20936.3-2017 (29/12/2017)
Gas detectors for explosive atmospheres—Part 3: Guidance on functional safety of fixed gas detection systems
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 19 329.00 CZK more info
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