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GB/T 5950-2008: Method for measurement of whiteness of building materials and non-metal mineral products
Status: Valid GB/T 5950: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 5950-2008 | English | 169 |
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Method for measurement of whiteness of building materials and non-metal mineral products
| Valid |
GB/T 5950-2008
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| GB/T 5950-1996 | English | 359 |
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Method for measurement of whiteness of building materials and non-metal mineral products
| Obsolete |
GB/T 5950-1996
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| GB 5950-1986 | English | 199 |
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2 days [Need to translate]
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The general principles for the test method of whiteness of products of the building materials and non-metals
| Obsolete |
GB 5950-1986
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PDF similar to GB/T 5950-2008
Basic data | Standard ID | GB/T 5950-2008 (GB/T5950-2008) | | Description (Translated English) | Method for measurement of whiteness of building materials and non-metal mineral products | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q10 | | Classification of International Standard | 91.100.01 | | Word Count Estimation | 7,797 | | Date of Issue | 2008-05-04 | | Date of Implementation | 2008-10-01 | | Older Standard (superseded by this standard) | GB/T 5950-1996 | | Quoted Standard | GB/T 3977; GB/T 3978; GB/T 3979; GB/T 5698; GB/T 7921; GB/T 8170; GB/T 9086; GB/T 11942; GB/T 17749; GSB A 67001; GSB A 67002; GSB A 67006; GSB Q 30001; JJG 512-2002 | | 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 measurement of whiteness of building materials and non-metallic mineral products. This standard applies to white and near white ceramic, paint, white cement, talc, kaolin, whiteness measurement of heavy and light calcium carbonate and other building materials and non-metallic mineral products, wollastonite, gypsum. | GB/T 5950-2008: Method for measurement of whiteness of building materials and non-metal mineral products
---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 measurment of whiteness of building materials and non-metal mineral products
ICS 91.100.01
Q10
National Standards of People's Republic of China
Replacing GB/T 5950-1996
Building materials and non-metallic mineral products whiteness measurement method
Posted 2008-05-04
2008-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 5950-1996 "building materials and non-metallic mineral products whiteness measurement method."
This standard compared with GB/T 5950-1996, the main changes as follows.
--- Chapter 6 of this standard whiteboard selection criteria are clearly defined;
--- Chapter 9 of the standard of whiteness formula be revised using CIE (2004) recommended whiteness formula.
Appendix A of this standard is a normative appendix.
The standard proposed by China Building Materials Federation.
This standard by the National Standardization whiteness standard sample Technical Working Group.
This standard was drafted. building materials industry and technical supervision research center, Beijing Kang Optical Instrument Co., Ltd., Guilin has developed a wide talc
Limited, Pingdu City, Shandong Province Talc Mines Ltd., Longyan Kaolin Co., Ltd., Liaoning talc Yihai Mining Co., Ltd., China metering
KISR, Konica Minolta, CNNC Hua Yuan Titanium Dioxide Co., Ltd., Dalian Building Research Institute Co., Ltd.,
Jinzhou District of Dalian City Construction Engineering Quality Supervision Station, Beijing Optical Instrument Factory, Shanghai Jin Jia Scientific Instrument Co., Ltd., Beijing Xingguang color measurement instrument
the company.
The main drafters of this standard. Wang Huan, Wang Feng, Lude Yun, Zhang Zhong in, Ying Qi, Wu Xintao, Yin Taian, Chen Donghua, the Kingdom of hair, Yu Yong,
Cheng Liangxi, Li Wensheng, Li Jihong.
This standard replaces the standards previously issued as follows.
--- GB/T 5950-1986, GB/T 5950-1996.
Building materials and non-metallic mineral products whiteness measurement method
1 Scope
This standard specifies the method for measurement of whiteness of building materials and non-metallic mineral products.
This standard applies to white and near-white ceramics, paint, white cement, talc, kaolin, wollastonite, gypsum, calcium carbonate and other heavy and light
Building materials and non-metallic mineral products whiteness measurement.
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 3977 color representation
GB/T 3978 standard lighting and illuminating - viewing conditions
Methods of measurement GB/T 3979 object colors
GB/T 5698 color terms
GB/T 7921 uniform color space and color difference equation
GB/T 8170 numerical rounding rules
GB/T 9086 standard for colorimetry and photometry white
GB/T 11942 color supplies color measurement method
Representation GB/T 17749 whiteness
GSBA67001 magnesia whiteness kind standard
GSBA67002 white ceramic standard plate
GSBA67006 barium sulfate whiteness kind standard
GSBQ30001 standard white matte glaze ceramic series
JJG512-2002 white meter verification procedures
3 Terms and Definitions
Terms and definitions GB/T 5698 established apply to this standard.
Test Method 4
When the whiteness totally reflected spectral reflectance ratio is 1 of the ideal diffuser 100, are absolute blackbody spectral reflectance Whiteness of 0
0.00, using the conditions specified in this standard, the measured tristimulus values \u200b\u200bof the sample, then the formula shall be calculated whiteness, and may calculate the sample colors
Angle, color saturation, and between samples.
5 Instruments
5.1 spectral color measurement instrument shall comply with GB/T 3979's.
5.2 spectral color measurement instrument shall comply with GB/T 11942 of.
5.3 Class Optical integral color measurement instrument shall meet the requirements of the JJG512-2002.
5.4 Calculation of color, light body with GB/T 3978 defined standard illuminant D65, standard colorimetric observer color matching functions should be consistent
GB/T 3977, using the 10 ° field of view spectral tristimulus values \u200b\u200bx0 10 (λ), y 10 (λ) and z 10 (λ).
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