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GB/T 3780.2-2017 Carbon black—Part 2:Determination of oil absorption number (USD) via email in 1-3 business day VALID
GB/T 24801-2009 GB/T 24801-2009 (USD) via email in 1-3 business day VALID
GB/T 3780.7-2016 Carbon black—Part 7:Determination of pH value (USD) via email in 1-3 business day VALID
GB/T 3781.8-2006 Acetylene black―Part 8: Determination of hydrochloric acid absorption number (USD) via email in 1-3 business day VALID
HG/T 2880-1997 Silica--alumina carbon black--Specification limits (USD) via email in 1-3 business day ABOLISHED
GB/T 14853.4-2002 Rubber compounding ingredients--Carbon black,pelletized--Determination of mass strength via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 3780.20-1997 Carbon black for use in the rubber industry--Determination of light transmittance of toluene extract--Method for product evaluation via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 14853.7-2002 Rubber compounding ingredients--Carbon black,pelletized--Specification via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 3780.10-2017 Carbon black—Part 10:Determination of ash (USD) via email in 1-3 business day VALID
HG/T 2797.5-1996 (USD) via email in 1-3 business day ABOLISHED
GB/T 14853.5-2002 Rubber compounding ingredients--Carbon black,pelletized--Determination of pellet size distribution via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 9579-1998 Carbon black in SBR(Styrene-butadiene rubber)-Recipe and evaluation method (USD) via email in 1-3 business day ABOLISHED
GB/T 3781.6-2006 Acetylene black―Part 6: Determination of apparent specific volume (USD) via email in 1-3 business day ABOLISHED
GB/T 24801-2019 Antiscorching agent—N-cyclohexylthiophthalimide(CTP) via email in 1-3 business day TO BE VALID please email coc@codeofchina.com for quotation
GB/T 10722-1999 Carbon black--Determination of specific surface area--Nitrogen adsorption method (USD) via email in 1-3 business day ABOLISHED
HG/T 2797.3-1996 (USD) via email in 1-3 business day ABOLISHED
HG/T 2525-2011 Insoluble sulfur for rubber via email in VALID please email coc@codeofchina.com for quotation
HG/T 3069-2008 via email in VALID please email coc@codeofchina.com for quotation
HG/T 2879.2-1997 Rubber Compounding ingredients--kaolin clay-- Determination of aluminium content (USD) via email in 1-3 business day ABOLISHED
HG/T 3062-2008 (USD) via email in 1-3 business day VALID
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