ISO 3074-2014 pdf download.Wool- Determination of dichloromethane-soluble matter in com bed sliver. ISO 3074 specifies a method for determining the dichloromethane-soluble matter in combed wool sliver. Its use can be extended to wool in other forms. It should be recognized that extraction with dichloromethane under the prescribed conditions does not completely remove all the fatty material present in a sample of wool. A further amount, possibly material of similar character, will usually be extracted by the use of solvents that cause greater swelling of the wool fibres. The method is applicable only to 100 % wool products. It can give misleading results if applied to products in which fibres other than wool are present. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 139, Textiles一Standard atmospheres for conditioning and testing 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 dichloromethane-soluble extract material extracted from wool by dichloromethane under prescribed conditions 4 Principle Once the appropriate specimen…