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LEO-MTS Got Satisfactory Results in Participating CNAS P00012-2011-T01 Formaldehyde Proficiency Testing in Textile

Formaldehyde is classified as a carcinogen by a number of authoritative sources. Inhalation of formaldehyde is associated with cancer in the respiratory tract in humans and laboratory animals. Formaldehyde is a skin, eye and respiratory tract irritant and sensitizer. Exposure to high concentrations of formaldehyde can be fatal. Formaldehyde is mainly used as an intermediate in the chemical industry for the production of condensed resins for the wood, paper and textile processing industries. Regulatory limits of free formaldehyde have been set in Different Countries such as USA, Europe, Japan, China and so on, especially in fabric and toy industry.

EN71 Part 9: Organic chemical compounds – Requirements for formaldehyde ：

China's mandatory testing standard GB 18401-2010 “National Safety Technical Code for Textile Products” has clear limits and boundaries for the formaldehyde content in textiles.

Formaldehyde Content Limit in GB 18401-2010 “National Safety Technical Code for Textile Products”:

In order to reduce the use risk of formaldehyde, Leo-MTS Chemical Laboratory do research on this project and participate in the national Formaldehyde Proficiency Testing P00012-2011-T01 determination of Free and Hydrolyzed Formaldehyde in textiles. This proficiency testing program is implemented by the Beijing Entry-Exit Inspection and Quarantine, Inspection and Quarantine Technology Center as a proficiency testing provider (PTP, PT0012). The proficiency testing project is determination of Free and Hydrolyzed Formaldehyde in textiles, with test method of water extraction method, and based on the ISO14184.1, GB/T2912.1-2009 or its equivalent methods. In the proficiency testing reports, technical analysis and technical advice are given, which are facilitated for the participating laboratories to gain useful information, and helpful to the improve of the laboratory testing level. The z-score is used as the numerical indicator to assess individual participant’s performance in this program.

A total of 124 laboratories enrolled the program. Our laboratory which code is BM-085 participated in the proficiency testing program and the results are satisfactory . See as below:

For detailed report please refer to the annex.

DOC111103-01_1.pdf DOC111103-01_2.pdf

Note: Z-score are commonly interpreted as follows:

(a) |Z| ≦ 2 Indicates “Satisfactory” performance and generates no signal
(b) 2<|Z|<3 Indicates “ Questionable” performance and generates an warning signal
(c) |Z| ≧ 3 Indicates “ Unsatisfactory” performance and generates an action signal