มอก. 285 เล่ม 53-2559

Scope (English)

This standard specifies 3 methods for the determination of the volatile organic compound (VOC) content of paints, varnishes and related materials. 1.Difference method is used where the expected VOC content is greater than 15 % by mass. 2.Gas-chromatographic method is preferred if the expected VOC content is greater than 0.1% by mass and less than about 15 % by mass. 3.Headspace gas-chromatographic method is applicable to VOC contents between 0.01% by mass and 0.1% by mass in emulsion paints. Difference method and gas-chromatographic method assumes that the volatile matter is either water or organic. However, other volatile inorganic compounds can be present and might need to be quantified by another suitable method and allowed for in the calculations.