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1. Introduction

At the current stage, the environment is facing the dual pressures of severe particulate matter (PM2.5) pollution and increasingly prominent ozone (O3) pollution. Especially in summer, O3 has become the primary factor leading to excessive air quality in some cities. VOCs are important precursors for the formation of O3, which mainly exist in the raw and auxiliary materials or products of enterprises. Most of them are flammable and explosive, and some are toxic and hazardous substances. Strengthening the treatment of VOCs is an effective way to control O3 pollution at this stage and also can help enterprises to save resources, improve efficiency, and reduce potential hazards.
The "2020 Volatile Organic Compounds Governance Plan" issued by the Ministry of Ecology and Environment of the People’s Republic of China in June clearly requires the promotion of source substitution, reduction of VOCs generation, and strict implementation of national and local product VOCs content limit standards.
At present, the VOCs limit standards for adhesives, industrial protective coatings, inks and cleaning agents have been implemented. The state urges all enterprises to make corresponding preparations and complete the switching in an orderly manner before the standards come into force.
Therefore, actively preparing to carry out VOC testing and detection is currently the first priority.
 
2.Test Project

Standard Number	Standard Name	Test Project	Specific Reference
GB 30981-2020	Limits of harmful substances in industrial protective coatings	VOC in Total	Water-based paint (water content greater than or equal to 70%) GB/T 23986-2009 chapter 10.4
			Water-based paint (water content less than 70%) GB/T 23985-2009 chapter 8.4
			Solvent-based paint-no reactive diluent and water GT/T 23985-2009 chapter 8.3
			Solvent-based paint-intentionally added water GB/T 23985-2009
			Solvent-based coatings and solvent-free coatings containing reactive diluents GB/T 34682-2017
			Water based radiation curable coating GB/T 34675-2017
			Non- water based radiation curable coatingting GB/T 34675-2017
		Content of Benzene
		Content of Methylbenzene and Dimethylbenzene
		Total Content of Halohydrocarbon
		Total Content of PAHs
		Content of Methanol
		Total Content of Ethylene Glycol and Ester Ether
		Four Heavy Metals
GB 33372-2020	VOC Limit in Adhesive	VOC in Total	Solvent type GB 33372-2020 Appendix A
			Water based adhesive GB 33372-2020 Appendix D
			α - cyanoacrylic acids HG 2492-2018 Appendix B bulk type GB 33372-2020 Appendix E
GB 38507-2020	Limits for the content of volatile organic compounds (VOCs) in inks	VOC in Total	VOC＜15%，GB 38608-2020 Appendix A
			VOC＞15%，GB 38608-2020 Appendix B
			Energy curing GB 34675-2017
		Halohydrocarbon
		17 Speicific VOC
GB 38508-2020	Volatile Organic Compound Content Limit of Cleaning Agent	VOC in Total
		Total Content of Dichloromethane，Ttrichlormethane， Trichloroethylene and Tetrachloroethylene
		Formaldehyde
		Total Content of Benzene，Methylbenzene，Ethylbenzene and Dimethylbenzene