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GB/T 9580-2009 Evaluation of standard reference carbon black (USD) via email in 1-3 business day VALID
GB/T 3780.26-2018 Carbon black—Part 26:Determination of carbon content in carbon black feedstock oils (USD) via email in 1-3 business day VALID
HG/T 3063-2008 Rubber compounding ingredients—Silica,precipitated,hydrated—Comparsion method of colour (USD) via email in 1-3 business day VALID
GB/T 15339-1994 Carbon black in NBR (acrylonitrile-butadiene rubber)-Recipe and evaluation method (USD) via email in 1-3 business day ABOLISHED
GB/T 3780.17-1995 Carbon black-Indirect determination of particle size-Reflectance method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 9581-2002 Oil for use in the carbon black products--Ethylene bottom via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
HG/T 2879.3-1997 Rubber Compounding ingredients--kaolin clay--Determination of silicon content (USD) via email in 1-3 business day ABOLISHED
GB/T 7767-2003 STANDARD terminology relating to carbon black via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 3780.21-2016 Carbon black—Part 21:Determination of sieve residue—Water washing method (USD) via email in 1-3 business day VALID
GB/T 3780.14-2010 Carbon black—Part 14:Determination of sulfur content (USD) via email in 1-3 business day ABOLISHED
GB/T 10722-2003 Carbon black—Determination of total and external surface area by nitrogen adsorption via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
HG/T 3068-1999 Rubber compound ingredients -- Silica Precipitated hydrated -- Determination of total copper content (USD) via email in 1-3 business day ABOLISHED
HG/T 3069-1999 Rubber compound ingredients -- Silica Precipitated hydrated -- Determination of total manganese content (USD) via email in 1-3 business day ABOLISHED
HG/T 3748-2004 Rubber compounding ingredients-silica precipitated hydrated-determination of matter soluble in water-cold extraction method (USD) via email in 1-3 business day ABOLISHED
HG/T 3062-1999 Rubber compounding ingredients -- Silica precipitated hydrated -- Determination of silica content on dried sample (USD) via email in 1-3 business day ABOLISHED
GB/T 23656-2009 Rubber compounding ingredients - Silica,precipitated,hydrated - Determination of CTAB surface area (USD) via email in 1-3 business day ABOLISHED
GB/T 3781.5-2006 Acetylene black―Part 5: Determination of grit content (USD) via email in 1-3 business day ABOLISHED
GB/T 3780.2-2017 Carbon black—Part 2:Determination of oil absorption number (USD) via email in 1-3 business day VALID
HG/T 3067-1999 Rubber compound ingredients -- Silica Precipitated hydrated -- Determination of pH value of an aqueous suspension (USD) via email in 1-3 business day ABOLISHED
GB/T 3780.7-2016 Carbon black—Part 7:Determination of pH value (USD) via email in 1-3 business day VALID
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