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GB/T 24206-2009 Determination of crystallized matter at 15 ℃ of washing oil (USD) via email in 1-3 business day VALID
GB/T 3711-1983 Method of determination for neutral oils and pyridine bases contents of phenol products (USD) via email in 1-3 business day ABOLISHED
GB/T 24209-2009 Determination of the viscosity of washing oil (USD) via email in 1-3 business day VALID
GB/T 23959-2009 Hydroquinone for industrial use (USD) via email in 1-3 business day VALID
GB/T 2602-2002 Method for the urea determination of m-cresol content of phenol products via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 3710-2009 Method of determination for crystallizing point of technical phenol and phenic acid (USD) via email in 1-3 business day VALID
GB/T 28113-2011 Bisphenol A for industrial use (USD) via email in 1-3 business day VALID
GB/T 339-2019 Synthetic phenol for industrial use (USD) via email in 1-3 business day VALID
GB/T 24200-2009 Determination of phenol and homologues contents of crude phenol (USD) via email in 1-3 business day VALID
GB/T 2602-1981 Products from phenols--Determination of intermediate cresol content by the urea method (USD) via email in 1-3 business day ABOLISHED
GB/T 339-2001 Synthetic phenol for industrial use via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 24208-2009 Determination of the naphthalene content of washing oil (USD) via email in 1-3 business day VALID
YB/T 4493-2015 Coking oil products-determination of distillation rang. Automatism control distil via email in VALID please email coc@codeofchina.com for quotation
GB/T 2600-1997 Technical xylenol via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 3710-2005 Method of determination for crystallizing point of technical phenol and phenic acid via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 24207-2009 Determination of the phenol content of washing oil (USD) via email in 1-3 business day VALID
GB/T 23960-2009 Catechol for industrial use (USD) via email in 1-3 business day VALID
GB/T 2599-1997 Technical cresol via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 2282-2000 Coking light oil products--Detemination of distillation range via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 3710-1983 Method of determination for crystallizing point of technical phenol and phenic acid via email in ABOLISHED please email coc@codeofchina.com for quotation
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