Standard No.:	GB/T 30128-2013
English Name:	Textiles - Testing and Evaluation for Negative-ion Concentration
Chinese Name:	纺织品 负离子发生量的检测和评价
Chinese Classification:	W04    Basic standards and general methods
Professional Classification:	GB    National Standard
ICS Classification:	59.080.30 59.080.30    Textile fabrics 59.080.30
Issued by:	AQSIQ;SAC
Issued on:	2013-12-17
Implemented on:	2014-12-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	110.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the test method for measuring the negative-ion concentration in textiles by friction method, and gives the evaluation. This standard applies to various textiles and their products. This standard does not involve the safety evaluation of textile products that excite negative ions in the air due to the addition of materials containing radioactive substances. 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 6529 Textiles - Standard atmospheres for conditioning and testing 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 negative ions negatively charged ions formed by molecules or atoms in the atmosphere, such as OH-(H2O)n and O2-(H2O)n, etc. 3.2 negative ion concentration number of negative ions excited by mechanical friction of textiles, pc/cm3.

Foreword I 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Equipment and materials 6 Specimen preparation 7 Humidity control and test conditions 8 Test procedure 9 Test result calculation and expressions 10 Evaluation 11 Test report