纺织品服装甲醛含量的检测、限定和控制（Detection, qualification and control of formaldehyde content in textiles and garments）.docVIP

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纺织品服装甲醛含量的检测、限定和控制（Detection, qualification and control of formaldehyde content in textiles and garments）.doc

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纺织品服装甲醛含量的检测、限定和控制（Detection, qualification and control of formaldehyde content in textiles and garments）

纺织品服装甲醛含量的检测、限定和控制（Detection, qualification and control of formaldehyde content in textiles and garments） Detection, qualification and control of formaldehyde content in textiles and garments I. detection of formaldehyde content in textiles and garments In order to better control the formaldehyde content of textiles and garments, it must first be applied to the cloth cover Formaldehyde was detected. At present, the test method of free formaldehyde in textiles and garments is the international standard test method Method. General purpose test methods for Japanese JZS and us AATCC. National Textile Standards Technical Committee 1998 to GB2912 - 82 determination of formaldehyde in textiles The standard was revised, the old standard One divides into two. (1) current standard is GB / T29121 - 1998, the determination of formaldehyde of textile first parts: swim Hydrolysis of formaldehyde (water extraction); (2) GB / T29122 - 1998, the second part of the determination of formaldehyde in textiles: release of formaldehyde (steam) absorption method The above two standards are of the same international standard. The standard is in principle with Japan JZS and American AATCC test methods are basically the same, the level of international standards. Water extraction, also known as liquid phase or A, is used to simulate the release of formaldehyde in fabrics during human wear A quantitative method of determining the suitability of textiles Product usage. Vapor absorption, also called gas phase or B, is mainly used to simulate fabric during storage and press The method for quantitative determination of formaldehyde is mainly applicable to the determination of formaldehyde in the process of production and storage. Water extraction is a method for the determination of total amount of free formaldehyde by hydrolysis Fabrics of textiles and garments are extracted in 40% aqueous solutions for a certain period of time, and the formaldehyde is extracted from the fabric Water is absorbed,