LP3 Transfer of Free Permethrin from Textile Surfaces

Description

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AATCC LP3-2018e, Transfer of Free Permethrin from Textile Surfaces

1.  Purpose and Scope

1.1 This procedure is used to transfer “free” permethrin insecticide from the surface of a textile material to a clean cloth for subsequent extraction and analysis. It may also be used to transfer other treatment substances

2. Principle

2.1 Using a Martindale abrasion tester, specimens of a treated sample fabric (with permethrin) are rubbed with an untreated white test fabric to transfer the permethrin from the specimen to the white test fabric. Trials at various (increasing) numbers of rubs are used to determine the total amount of free permethrin present on the surface of the test specimen.
 

Copyright American Association of Textile Chemists and Colorists, RTP, NC, USA. All rights reserved.

The above information is only a summary of the AATCC standard.