Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 4348.1-2000 Sodium hydroxide for industrial use-Determination of sodium hydroxide and sodium carbonate content 80.0 via email in 1~3 business day abolished
HG/T 3825-2006 Sodium hydroxide produced from natural soda by causticizing process 105.0 via email in 1~3 business day valid
GB/T 7698-2014 Sodium hydroxide for industrial use―Determination of carbonates content―Titrimetric method 165.0 via email in 1~3 business day valid
GB/T 11212-2003 Sodium hydroxide for chemical fiber use 60.0 via email in 1~3 business day superseded
HG/T 4531-2013 Magnesium Hydroxide for Flame Retardant 90.0 via email in 1~3 business day valid
GB/T 1919-2014 Potassium hydroxide for industrial use 280.0 via email in 1~5 business day valid
GB/T 4348.3-2012 Sodium hydroxide for industrial use - Determination of iron content-1,10-phenanthroline photometric method 110.0 via email in 1~3 business day valid
HG/T 3815-2013 Potassium Hydroxide Solution by Ion Exchange Membrance Method for Industry Use 150.0 via email in 1~3 business day valid
YS/T 534.3-2007 Chemical analysis methods of aluminium hydroxide Part 3: Determination of silicon dioxide content Molybdenum blue photometric method 60.0 via email in 1~3 business day valid
GB/T 11200.3-1989 Membrane process sodium hydroxide; Determination of calcium contents-Flame atomic absorption method 30.0 via email in 1~3 business day superseded
GB/T 27815-2011 Lime water for industrial use 150.0 via email in 1~3 business day valid
GB/T 4348.2-2002 Sodium hydroxide for industrial use - Determination of sodium content - Mercurimetric method 75.0 via email in 1~3 business day superseded
GB/T 29643-2013 Sodium hydroxide for industrial use—Laboratory sample—Preparation of the main solution for carrying out certain determinations 110.0 via email in 1~3 business day valid
YS/T 705-2009 Analysis methods of aluminum hydroxide for filler conductance - Determination of chrominance 90.0 via email in 1~3 business day valid
GB 210.1-2004 Specification and determination methods of sodium carbonate for industrial use - Part 1:Sodium carbonate for industrial use 60.0 via email in 1~3 business day superseded
HY/T 111-2008 Magnesium hydroxide slurries and filter cakes 120.0 via email in 1~3 business day valid
GB/T 22650-2008 Sodium hydroxide for industrial use - Determination of calcium and magnesium content - Complexometric method 90.0 via email in 1~3 business day valid
GB/T 11200.1-1989 Membrane process sodium hydroxide; Determination of sodium chlorate content-o-Tolidine spectrometric method 15.0 via email in 1~3 business day superseded
GB 11213.4-1989 Sodium hydroxide for chemical fiber use; Determination of silicon mass fraction; Reduced molybdosilicate spectrometric method 30.0 via email in 1~3 business day abolished
YS/T 534.4-2007 Chemical analysis methods of aluminium hydroxide Part 4: Determination of iron oxide content Orthophenanthroline photometric method 60.0 via email in 1~3 business day valid
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