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FZ/T 50013-2008: Method for the determination of whiteness of viscose fibres. Diffuse blue reflection factor
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| FZ/T 50013-2008 | English | 159 |
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Method for the determination of whiteness of viscose fibres. Diffuse blue reflection factor
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FZ/T 50013-2008
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Basic data | Standard ID | FZ/T 50013-2008 (FZ/T50013-2008) | | Description (Translated English) | Method for the determination of whiteness of viscose fibres. Diffuse blue reflection factor | | Sector / Industry | Spinning & Textile Industry Standard (Recommended) | | Classification of Chinese Standard | W50 | | Classification of International Standard | 59.060.01 | | Word Count Estimation | 6,620 | | Date of Issue | 2008-02-01 | | Date of Implementation | 2008-07-01 | | Quoted Standard | GB/T 8170; GB/T 14334-2006; JJG 512 | | Regulation (derived from) | NDRC Notice No. 11 of 2008 | | Issuing agency(ies) | National Development and Reform Commission of the People's Republic of China | | Summary | This standard specifies the chemical cellulose fiber whiteness test methods diffuse blue reflectance factor method. This standard applies to cellulose chemical fiber, can refer to other types of fibers used. | FZ/T 50013-2008: Method for the determination of whiteness of viscose fibres. Diffuse blue reflection factor
---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.
Method for the determination of whiteness of viscose fibres. Diffuse blue reflection factor
ICS 59.060.01
W50
People's Republic of China textile industry standards
Chemical fiber cellulose White Test Method
Diffuse blue reflectance factor method
Posted 2008-02-01
2008-07-01 implementation
National Development and Reform Commission, People's Republic of China released
Foreword
The standard reference FZ/T 50010.7-1998 "viscose fiber pulp whiteness Determination", GB/T 14463-1993 "VSF
Dimension "Testing method of whiteness.
The standard proposed by China Textile Industry Association.
This standard by the Shanghai textile industry technical supervision of the centralized.
This standard was drafted. Hubei Golden Ring Co., Ltd., Shanghai textile industry technical supervision.
The main drafters of this standard. Chen Hui, Lu Zhijian, Xia Jian Qin, Wang Fuquan, Chen Min.
This standard was first published.
Chemical fiber cellulose White Test Method
Diffuse blue reflectance factor method
1 Scope
This standard specifies the chemical cellulose fiber whiteness test methods --- diffuse blue reflectance factor method.
This standard applies to chemical cellulose fibers, other types of fiber can refer to use.
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 8170 numerical rounding rules
GB/T 14334-2006 chemical fiber staple sampling method
JJG512 white meter verification procedures
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
The percentage of radiation flux reflected from an object under the same conditions are completely diffuse reflector of the reflected radiation flux.
3.2
R∞
Thickness of the specimen with the thickness of the diffuse reflection factor does not increase when the reflection factor improvement.
3.3
R457
Having reflection characteristics specified in this standard within a meter at a wavelength of 457nm blue light reflection factor under conditions determined.
Principle 4
Analog D65 light source, the use of diffusion/vertical lighting conditions of observation, measuring the diffuse chemical cellulose fiber main wavelength 457nm blue
Factor (%), its value represents whiteness measurement results.
5 Instruments
5.1 White Tester
5.1.1 geometry
5.1.1.1 ball to diffuse the sample diffuse lighting. Ball diameter of not less than 100mm, the sum of pore area is not more than the ball inside the ball the whole reflection
10% of the area of the ball.
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