Standard No.:	GB/T 1541-2013
English Name:	Paper and board—Determination of dirt
Chinese Name:	纸和纸板 尘埃度的测定
Chinese Classification:	Y30    Papermaking in general
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ;SAC
Issued on:	2013-10-10
Implemented on:	2014-5-1
Status:	valid
Superseding:	GB/T 1541-2007 Paper and board—Determination of dirt
Target Language:	English
File Format:	PDF
Word Count:	4000 words
Translation Price(USD):	60.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the method for determination of dirt count of paper and board. This standard is applicable to the determination of dirt count of all kinds of paper and board. 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 450 Paper and board—Sampling for testing and identification of machine and cross direction wire side and felt side 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 dirt fiber bundles and other impurities which are obviously different from the color of paper under any illumination angle 3.2 dirt count number of dirt with a certain area per square meter of paper and board, or equivalent area of dirt per square meter of paper and board, expressed in mm2

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Apparatus 5 Sampling 6 Test procedures 7 Expression of results 8 Test report Annex A (Normative) Standard dirt chart