1 Scope
This standard specifies the testing method for moisture regain of man-made fibres - oven-drying method. If any dispute, oven weighting method is adopted, the oven-dry mass determined at nonstandard atmospheric condition is corrected to the value at standard atmospheric condition by correction method as detailed in Annex A. If this method is not applicable, corresponding testing methods are determined through consultation by the relevant parties. Annex B is only applicable to dacron.
This method is applicable to the testing for moisture regain of man-made fibres like polyester (dacron), polyamide (chinlon), polyacrylonitrile (acrylon), polypropylene (PP), polyvinyl formal (vinylon), polyvinyl chloride (PVO) and cellulose fibre.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 3291.3 Textiles - Terms of Textile Material Properties and Test - Part 3: General
GB/T 6502 Sampling Method of Man-made Filament Yarns
GB/T 6529 Textiles - Standard Atmospheres for Conditioning and Testing
GB/T 8170 Rules for Rounding off of Numerical Values
GB/T 9995 Determination of Moisture Content and Moisture Regain of Textile - Oven-drying Method
GB/T 14334 Sampling Method for Man-made Staple Fibres
3 Terms and Definitions
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Theory
5 Apparatus
6 General Testing Principle
7 Testing Procedure
8 Result Calculation
9 Rounding off of Numerical Values
10 Testing Report
Annex A (Informative) Correction of Oven-dry Mass under Nonstandard Atmospheric Conditions
Annex B (Informative) Infrared (or Halogen) Moisture Tester Method
