1.1 This standard prescribes the techniques for identifying textile fibres used commercially in Thailand as follows :
1.1.1 Natural fibres : cotton, kenaf, jute, flax, ramie, Lemp, sisal, silk and animal hair.
1.1.2 Man-made fibres :
(1) Regenerated cellulose or rayon, such as Bemberg, Viscose and others.
(2) Acetate, such as, Acetal; Dicel and others.
(3) Triacetate, such as,Arnel, Tricel and others.
(4) Polyamide or nylon, such as, Celon, ICI nylon, and others.
(5) Polyester, such as , Dacron, Terylene and others.
(6) Acrylic, such as , Acryl, Orion and others.
(7) Modancrylic, such as , Dynel, Teklan and others.
(8) Polyvinyl alcohol, such as , Kuralon, Vinylon and others.
(9) Polyolefin, such as , Polythene, Polytie and others. (10) Glass fibre, such as, iibreglass, Marglass and others.
Thai VersiOR
Date of Public Notice Date of Establishment in the Government Gazette
26 August 1981 13 September 1931
Revision No,1 ----------------------------------.--------------------------------
Revision No,2 ___________________________________________________________________
Revision No,3 _________________________________________________________________
Revision No,4 ___________________________________________________________________
1.2 The physical and chemical test methods for identifying textile fibres includes a number of procedures, for example :
1.2.1 Visual and microscopical examination
1.2.2 Microscopical cross-section examination
1.2.3 Burning test
1.2.4 Density test
1.2.5 Solubility test
1.2.6 Drying twist test
1.2.7 Stain test
The identification of fibres is usually carried out by subjecting specimens to a variety of selected tests until enough information is obtained to make a satisfactory judgement as to the generic class or specific type.
1.3 Successful identification of fibres depends upon experience and familiarity with the fibres. The identification of an unknown fibre is best made by comparison with properly identified fibres used as reference standards. For this reason it is desirable to have available at least one representative fibre sample from each generic class of fibres, which can be used for comparative identification.
1.4 This method provides means for identifying the generic classification of the common fibre types. In special cases, as when dealing with fibres not described in clause 1.1 or attempting to distinguish between products of different suppliers of the same generic types, one must consult standards texts on fibre identification or technical bulletins issued by suppliers of man-made fibres.