GB/T 6504-2017 Man-made fiber - Test method for oil content
Warning: Users of this standard shall be experienced in normal laboratory practicing. This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.
The user shall read the material safety data sheet (MSDS) carefully when using the solvents specified in this standard.
1 Scope
This standard specifies the test methods for oil content of man-made fiber, i.e., extraction method (Method A), neutral soap washing method (Method B), optical refractive index method (Annex A), nuclear magnetic resonance method (Annex B) and rapid extrusion method (Annex C).
This standard is applicable to polyester (DTY), polyamide (nylon), polyacrylonitrile (acrylon), polypropylene, polyvinyl formal (vinylon), regenerated cellulose (viscose) man-made fibers, and may serve as a reference for other types of man-made fibers.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3291.1 Textiles -Terms of textile material properties and test - Part 1: Fibre and yarn
GB/T 3291.3 Textiles -Terms of textile material properties and test - Part 3: General
GB/T 3921 Textiles - Tests for colour fastness - Color fastness to washing with soap or soap and soda
GB/T 4146 (All parts) Textiles - Man-made fibers
GB/T 6502 Sampling method of man-made filament yarns
GB/T 6503 Man-made fibres - Test method of moisture regain
GB/T 14334 Sampling method for man-made staple fibres
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 3291.1, GB/T 3291.3 and GB/T 4146 (all parts) apply.
4 Sampling rules
Sampling is carried out according to the following requirements. Samples shall not be taken from packages that are moistened, contaminated, or scratched during transport, or have been opened:
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Sampling rules
5 Test methods
6 Test report
Annex A (Normative) Optical refractive index method
Annex B (Normative) Nuclear magnetic resonance method
Annex C (Normative) Rapid extrusion method
