Standard No.:	FZ/T 01057.9-2012
English Name:	Test method for identification of textile fibers—Part 9:Birefringence
Chinese Name:	纺织纤维鉴别试验方法 第9部分：双折射率法
Chinese Classification:	W04    Basic standards and general methods
Professional Classification:	FZ    Professional Standard - Textile
ICS Classification:	59.080.01 59.080.01     Textiles in general 59.080.01
Issued by:	MIIT
Issued on:	2012-12-28
Implemented on:	2013-6-1
Status:	valid
Superseding:	FZ/T 01057.10-1999 Test method for identification of textile fibres - Birefringence
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	120.0
Delivery:	via email in 1 business day

1 Scope This part of FZ/T 01057 specifies a test method for the identification of textile fibers by birefringence. This part is applicable to the identification of textile 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 (including any amendments) applies. GB/T 6529 Textiles—Standard atmospheres for conditioning and testing FZ/T 01057.1 Test method for identification of textile fibers—Part 1: General introduction 3 Principle The fiber has birefringence. The refractive index in which the direction of planar polarization vibration is parallel to the long axis of the fiber and the refractive index in which the direction of planar polarization vibration is perpendicular to the long axis of the fiber can be measured respectively by using a polarization microscope. The birefringence can be obtained by subtracting them. Different types of fibers can be identified according to their specific birefringence.

Foreword i 1 Scope 2 Normative references 3 Principle 4 Reagents 5 Instruments and tools 6 Samples 7 Procedures 8 Test report Annex A (Non-normative) Birefringence of various fibers