GB/T 9338-2008 English PDF

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GB/T 9338-2008: Fluorescent whitening agents -- Determination of relative whiteness -- Instrumental measurement
Status: Valid

GB/T 9338: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 9338-2008	189	Add to Cart	3 days	Fluorescent whitening agents -- Determination of relative whiteness -- Instrumental measurement	Valid
GB/T 9338-1988	199	Add to Cart	2 days	Method of instrumental measurement of whiteness of fluorescent whitening agents	Obsolete

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GB/T 23978   GB/T 24164   GB/T 2374   GB/T 2391   GB/T 9339   GB/T 9337   

Basic data

Standard ID: GB/T 9338-2008 (GB/T9338-2008)
Description (Translated English): Fluorescent whitening agents -- Determination of relative whiteness -- Instrumental measurement
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G55
Classification of International Standard: 71.100.01; 87.060.10
Word Count Estimation: 8,853
Date of Issue: 2008-09-18
Date of Implementation: 2009-05-01
Older Standard (superseded by this standard): GB/T 9338-1988
Adopted Standard: ISO 105-J02-1997, MOD
Regulation (derived from): National Standard Approval Announcement 2008 No.16 (Total No.129)
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 method for measuring the relative fluorescent whitening whiteness on textiles. This standard applies to the determination of the relative whiteness of fluorescent brighteners in textiles. This standard applies only to the relative evaluation purposes. The formula is only a sample application called " white" commercial.

GB/T 9338-2008: Fluorescent whitening agents -- Determination of relative whiteness -- Instrumental measurement

---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.
Fluorescent whitening agents. Determination of relative whiteness. Instrumental measurement ICS 71.100.01; 87.060.10 G55 National Standards of People's Republic of China Replacing GB/T 9338-1988 Fluorescent brightener relative whiteness measurement instrument method (ISO 105-J02.1997, Textiles-Testsforcolourfastness-PartJ02. Instrumental assessmentofrelativewhiteness, MOD) Posted 2008-09-18 2009-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This revised standard adopts the International Standard ISO 105-J02.1997 "Textiles - Tests for color fastness - Part J02. whiteness meter Assessment. " The standard 105-J02 and ISO .1997 The differences are as follows. --- Standard format editorial changes; --- ISO Appendix A 105-J02, there is provided a formula for C 1931 color illumination and observer data, standard edition No part of this registration. This standard replaces GB/T 9338-1988 "fluorescent whitening whiteness measurement method (instrument method)." This standard and GB/T 9338-1988 compared to the main changes are as follows. --- The standard specification for the name "fluorescent brightener relative whiteness measuring instrument Law" (1988 version of the standard name, Excerpts standard name); --- Subject content and scope of the "fluorescent whiteness" is replaced by "relative whiteness" (1988 version of Chapter 1, the standard edition Chapter 1); --- Increasing the scope of whiteness formula, namely 40 < W10 < 5Y10-280 and -4 < TW, 10 < +2 (Excerpts Chapter 7); --- Increasing the content of the test report (Chapter 8 of this edition). Appendix A of this standard informative annex. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee Dye (SAC/TC134) centralized. This standard was drafted. Shenyang Chemical Research Institute, Shenyang Cai Pu Technology Co., Ltd. The main drafters of this standard. Ji Qin Lan, Li Qin. The standard standard replaces the previous editions. --- GB/T 9338-1988. Fluorescent brightener relative whiteness measurement instrument method

1 Scope

This standard specifies the method for measuring the relative fluorescent whitening whiteness on textiles. This standard applies to the determination of the relative brightness of the fluorescent whitening agent on textiles. This standard applies only to the relative evaluation purposes. Application of calculation formula is limited to a sample called "white" commercially.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 Is a fluorescent dye, under UV irradiation, can stimulate the blue, purple and yellow on a substrate having complementary whitening effect. [GB/T 6687-2006 of 2.21]. 2.2 For determining whether the color of an object close to the ideal white attributes available whiteness or whiteness index representation. 2.3 White represents the value of the material tend to shade most affected radiation or reflection wavelength. 2.4 β (λ) = 2.5 In the three-color system, and the amount of test color stimuli color stimuli reach three reference color matching required. [GB/T 5698-2001 in 4.23] NOTE. In the XYZ color system, the use of [X], [Y], [Z] tristimulus values. In X10Y10Z10 color system, using [X10], [Y10], [Z10] three spines Shock value. 2.6 Tristimulus values \u200b\u200bwith each of them and the ratio. In the XYZ color system by the tristimulus values \u200b\u200bX, Y, Z coordinates can be considered excellent x, y, z. For X10, Y10, Z10 color system, the chromaticity coordinates x0 10, y 10, z 10. [GB/T 5698-2001 of 4.39] X0 = XX + Y + Z , X0 10 = X10X10 + Y10 + Z10 Y = YX + Y + Z , Y 10 = Y10X10 + Y10 + Z10 ......

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