Standard

NS-EN ISO 20418-3:2020

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This document specifies a qualitative and quantitative procedure to determine the composition of animal hair fibre blends (made of wool, cashmere, yak, alpaca, camel or angora) by LC-MS without protein reduction. NOTE 1 The composition of non-animal hair fibres can be measured by ISO 1833 (all parts). Both results are combined to determine the total fibre composition. The method is based on a preliminary identification, by light microscopy, of all fibres in the blend on the basis of their morphology, according to ISO/TR 11827[4]. It is not applicable if fibres of the same animal species (such as blends of cashmere and mohair) are present. NOTE 2 In this case, the quantitative analysis is performed using microscopical analysis [for example, ISO 17751 (all parts)].

Dokumentinformasjon

  • Standard fra SN
  • Publisert:
  • Utgave: 2020-07
  • Versjon: 1
  • Varetype: NAT
  • ICS 59.060.01
  • National Committee SN/K 999/EG 6

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