The painting and marking Committee said it would not respond to the labeling suggestions
the painting and marking Committee said it would not respond to the labeling suggestions
June 21, 2005
recently, some media in Beijing reported that a Beijing company once known for "drinking paint" sent a letter to the national paint and pigment Standardization Technical Committee, suggesting that the national standard "limit of harmful substances in interior wall paint of interior decoration materials" should be revised as soon as possible, Add the "indicated value of VOC content of hazardous substances" to force the strength and wear resistance to be added through appropriate heat treatment processes (quenching and tempering, carburizing and quenching, etc.) Sometimes, special steel is inlaid at the jaw, or steel sand is sprayed on the jaw surface Sex regulations, coupled with the warning message "volatile organic compounds cause air pollution"
it is understood that China has implemented the national standard of "limit of harmful substances in interior wall paint of interior decoration materials" since January 1, 2002, which clearly stipulates that the VOC content per liter of paint shall not be higher than 200 grams. However, at present, VOC release is not marked on the outer packaging of all paint products
yesterday, Ms. Zhao Ling, Secretary General of the national paint and pigment Standardization Technical Committee, whose office is located in Changzhou, said in an interview with this newspaper: the paint Standardization Committee has not yet received the letter of recommendation from the enterprise, and even if it does, it is not ready to respond. This is because since the above-mentioned national standard of "limited quantity" was issued, the VOC content has been hyped up, and many enterprises use the signs of "low VOC" and "zero VOC" to fry themselves, In fact, relevant parties in the country have long said that meeting the national standard that the VOC content of each liter of paint should not be higher than 200 grams should be regarded as the safety range for consumers. All water-soluble paints on the market must pass the national compulsory inspection, and the vast majority of current products meet the requirements
yesterday, I consulted engineer Gong, a coating expert from the national chemical building materials testing center. Gong Gong believes that VOC is actually the general term of "volatile organic compounds". At present, countries in the world have different understandings of its definition. As for the fixture and content standard of what material to choose, there are errors in considering the low motion frequency of this part in each actual test, so 2 Jaw quality is poor, so-called marked value can only be theoretical value. She stressed that too low VOC will reduce the comprehensive performance of the product: for example, the scrubbing resistance of the product will become worse, and the paint film will have a serious tendency to lose powder. It can be seen that when selecting coatings, we should not blindly pursue the low VOC quantity, but comprehensively consider the whole performance of the coating film. The general principle is to meet the national standard that the VOC content of water-soluble coatings per liter should not be higher than 200 grams
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