GB/T 24288-2009 English PDF

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GB/T 24288-2009: Paper and board -- Determination of dominant wavelength and excitation purity -- D65/10-degreediffuse reflectance method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 24288-2009	279	Add to Cart	3 days	Paper and board -- Determination of dominant wavelength and excitation purity -- D65/10-degreediffuse reflectance method	Valid

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Basic data

Standard ID: GB/T 24288-2009 (GB/T24288-2009)
Description (Translated English): Paper and board -- Determination of dominant wavelength and excitation purity -- D65/10-degreediffuse reflectance method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y30
Classification of International Standard: 85-010
Word Count Estimation: 12,198
Date of Issue: 2009-07-31
Date of Implementation: 2010-03-01
Quoted Standard: GB/T 450; GB/T 7973-2003; GB/T 10739
Regulation (derived from): National Standard Approval Announcement 2009 No.9 (Total No.149)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the determination of paper and board with a dominant wavelength and excitation purity eliminate shiny diffuse method. This standard does not apply to the addition of a fluorescent dye or pigment paper and cardboard. When the instrument is the amount of radiation in the ultraviolet light irradiation on the alignment of the sample to the authorized laboratory and GB/T 7973 regulations provided under CIE illuminant D65 fluorescent reference standard conditions consistent with the criteria for the determination containing fluorescent increase white paper and paperboard agent.

GB/T 24288-2009: Paper and board -- Determination of dominant wavelength and excitation purity -- D65/10-degreediffuse reflectance method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Paper and board. Determination of dominant wavelength and excitation purity. D65/10-degreediffuse reflectance method ICS 85-010 Y30 National Standards of People's Republic of China Paper and cardboard dominant wavelength and the purity of excitement D65/10 ° Diffuse reflectance method Posted 2009-07-31 2010-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Appendix A of this standard is a normative appendix. The standard proposed by China National Light Industry Council. This standard by the National Standardization Technical Committee of the paper industry. This standard was drafted. China Pulp and Paper Research Institute, the national paper quality supervision and inspection center, China Paper Association Professional Committee of Standardization Members will. The main drafters of this standard. Zhangqing Wen. This standard by the National Standardization Technical Committee is responsible for interpreting the paper industry. Paper and cardboard dominant wavelength and the purity of excitement D65/10 ° Diffuse reflectance method

1 Scope

This standard specifies the determination of paper and paperboard dominant wavelength and purity excited eliminate shiny diffuse reflectance method. This standard is not applicable to a fluorescent dye or pigment of paper and paperboard. When the instrument is the amount of ultraviolet radiation light source on the specimen to align With the GB/T 7973 regulations authorized laboratories in the CIE illuminant D65 fluorescent reference standard conditions consistent with this standard can be For measuring the fluorescent brighteners containing paper and cardboard.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 450 and take samples to an aspect of paper and paperboard samples, positive and negative determination (GB/T 450-2008, ISO 186. 2002, MOD) GB/T 7973-2003 Paper, board and pulps measurement of diffuse reflectance factor (diffusion/vertical method) (ISO 2469.1994, NEQ) GB/T 10739 paper, paperboard and pulp sample processing and testing standard atmospheric conditions (GB/T 10739-2002, eqvISO 187. 1990)

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 By a flux of radiation reflected from an object under the same conditions perfectly reflecting diffuser reflected ratio of radiation flux, expressed as a percentage. Note. If the object is translucent backing will affect the reflection factor. 3.2 Sample layers to achieve opaque, that the measurement result is no longer doubled reflection factor change occurs when the number of layers with the sample. 3.3 Z10 color system. 3.4 Used in line with GB/T 7973 provisions colorimeter, a spectral characteristics in conditions CIE1964 supplementary standard colorimetric system measured trans Emission factor. 3.5 In a given three-color system, and the stimulation of research that matches the color of the three reference color stimuli amount. NOTE. In this standard, with CIE1964 (10 °) standard observer and CIE standard illuminant D65 defined three-color system. ......

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