Textilie - Kvalitativní a kvantitativní proteomická analýza vláken ze srsti některých zvířat - Část 3: Detekce peptidů pomocí LC-MS bez redukce bílkoviny (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.1.2021
Designation standards: ČSN EN ISO 20418-3
Classification mark: 800220
Catalog number: 511076
Publication date standards: 1.1.2021
The number of pages: 40
Approximate weight : 120 g (0.26 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
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)]