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GB/T 1506-2016 Manganese ores—Determination of manganese content—Potentiometric method and ammonium iron(Ⅱ) sulphate titrimetric method (USD) via email in 1-3 business day VALID
GB/T 1509-1979 Method for determination of silicon dioxide content in manganese ores (USD) via email in 1-3 business day ABOLISHED
GB/T 18250-2000 Test method for performance in plane deformation of curtain walls via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YB/T 319-2015 Metallurgical manganese ore (USD) via email in 1 business day VALID
GB/T 14949.6-1994 Manganese ores- Determination of copper,lead and zinc contents (USD) via email in 1-3 business day VALID
GB 1520-1979 (USD) via email in 1-3 business day ABOLISHED
GB/T 1508-1979 Method for determination of total iron content in manganese ores (USD) via email in 1-3 business day ABOLISHED
GB/T 14949.10-1994 Manganese ores- Determination of cobalt content (USD) via email in 1-3 business day VALID
GB/T 29653-2013 Manganese ores—Determination of size distribution by sieving (USD) via email in 1-3 business day VALID
GB/T 29651-2013 Manganese ores and concentrates—Determination of total iron content—Flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB/T 14949.2-1994 Manganese ores- Determination of nickel content (USD) via email in 1-3 business day VALID
GB/T 14949.8-2018 Manganese ores—Determination of hygroscopic moisture content—Gravimetric method (USD) via email in 1-3 business day VALID
GB/T 1511-2016 Manganese ores—Determination of calcium and magnesium contents—EDTA titrimetric method (USD) via email in 1-3 business day VALID
GB/T 24197-2009 Manganese ores—Determination of iron silicon aluminium calcium barium magnesium potassium copper nickel zinc phosphorus cobalt chromium vanadium arsenic lead titanium and vanadium—Inductively coupled plasma atomic emission spectrometry (USD) via email in 1-3 business day VALID
GB/T 14949.11-1994 Manganese ores- Determination of carbon dioxide content (USD) via email in 1-3 business day VALID
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