GB 18581-2009 Translated English of Chinese Standard. GB18581-2009: Indoor decorating and refurbishing materials - Limit of harmful substances of solvent based coatings for woodenware
https://www.chinesestandard.net, 27.5.2017 - 26 sivua
This standard specifies the allowable limit value requirements, test methods, inspection rules, packaging marks, coating safety and protection, etc., of the human and environmental harmful substances in polyurethane, nitro and alkyd solvent based coatings of woodware AND the solvent based putty of woodware for indoor decorating and refurbishing purposes.
Appendix B Normative Determination of benzene toluene ethylbenzene
1,1,1-trichloroethane 1,2-dichloroethane accurate to 0.1 alkyd amount of diluent appropriate amount benzene boiling point greater calibration mixture carbon tetrachloride Carrier gas Changzhou chemical compound chromatographic test conditions content control item dilute the sample Dilution solvent dimethyl phthalate Electronic capture detector ethyl acetate ethylbenzene Flame ionization detector gas chromatographic test gram g/g grams g grams per gram greater than 250 Guangdong halogenated hydrocarbon content harmful substances Indoor decorating Injection volume instrument parameters internal standard substance known purity least 99 mass fraction methanol Optimization of chromatographic OPTIMIZE the instrument order of magnitude parameters in accordance peak area polydimethylsiloxane capillary column polyurethane coatings PREPARE the mixed prepared mixed sample provisions of GB/T RECORD the chromatogram relative correction factor sample in accordance Sample injector SEAL the vial SHAKE it uniformly solvent based coatings stirring it uniformly test as soon test methods tested compound toluene trichloromethane vial and SHAKE VOC content Volatile organic compounds xylene