ISO/TR 5090:1977

Textiles — Methods for the removal of non-fibrous matter prior to quantitative analysis of fibre mixtures

Describes procedures for the removal of certain commonly found types of non-fibrous substances from fibres. Fibres to which the procedures are applicable and those to which they are not applicable are listed in the table, in relation to the non-fibrous substances to be removed. The names of these fibres are defined in ISO 2076.