SN/T 3780-2014 Textile for import and export - Method for identification of fiber - Banana, pineapple, lotus, coconut and mulberry fiber
1 Scope
This standard specifies the qualitative identification of five types of plant fibers using methods such as microscopic observation, fiber fineness testing, density testing, fiber rotation testing, coloring test, and thermal decomposition testing.
This standard is applicable to the qualitative identification of raw materials of banana fiber, pineapple fiber, lotus fiber, coconut fiber, and mulberry fiber.
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 2910.1-2009 Textiles - Quantitative chemical analysis - Part 1: General principles of testing
GB/T 5889-1986 Method of quantitative analysis of ramle chemical components
GB/T 11951-1989 Textiles - Natural fibres - Generic names and definitions
FZ/T 01057.7-2007 Test method for identification of textile fibers - Part 7: Density gradient column method
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 11951 and the following apply.
3.1
banana fiber
fiber extracted from banana stalks
3.2
pineapple fiber
fiber extracted from pineapple leaves
3.3
lotus fiber
fiber extracted from lotus stalks
3.4
coconut fiber
fiber obtained from the outer shell of coconuts
3.5
mulberry fiber
bast-type fiber obtained from the bark of mulberry trees
3.6
main decomposition temperature
temperature corresponding to the peak point on the derivative thermogravimetric (DTG) curve
4 Principle
Based on the distinct physical and chemical properties of the five types of plant fibers, different analytical methods are adopted to test the samples. The test results are then compared with relevant technical characteristics to identify the five types of plant fibers.
5 Sample pretreatment
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Sample pretreatment
6 Tests
7 Test report
Annex A (Informative) Morphological characteristics of the longitudinal and cross sections of five plant fibers
Annex B (Informative) Single fiber fineness of five plant fibers
Annex C (Informative) Densities of five plant fibers
Annex D (Informative) Rotation directions of five plant fibers
Annex E (Informative) Color reaction results of five plant fibers
Annex F (Informative) Thermal decomposition temperatures of five plant fibers
Annex G (Informative) Systematic identification method for five plant fibers
