Standard No.:	GB/T 21030-2007
English Name:	Test method for the mean and distribution of fibre diameter of wool and other animal fibre—Optical fibre diameter analyser (OFDA)
Chinese Name:	羊毛及其他动物纤维平均直径与分布试验方法纤维直径光学分析仪法
Chinese Classification:	W20    Wool textile in general
Professional Classification:	GB    National Standard
ICS Classification:	59.060.10 59.060.10    Natural fibres 59.060.10
Issued by:	AQSIQ
Issued on:	2007-6-21
Implemented on:	2007-9-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	100.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the method to determine the mean and distribution of fiber diameter of wool, sliver and other animal fiber with optical fiber diameter analyser (OFDA). This standard is applicable to the measurement of mean and distribution of fiber diameter of wool, sliver and other animal fiber. 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 to (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies. GB 6529 Standard Atmospheres for Textiles Conditioning and Testing IWTO-34-85 Determination of Oven Dry Weight, Calculated Invoice Weight and Sold Weight of Wool Tops IWTO Core-drilling Test Rules 3 Terms and Definitions

Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 Principle 5 Instruments, Appliances and Reagents 6 Standard Sliver 7 Pre-conditioning, Conditioning and Standard Atmospheric Conditions 8 Sampling and Specimen Preparation 9 Test Procedures 10 Precision 11 Confidence Limit 12 Test Report Appendix A (Informative) OFDA Instrument Calibration