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GB/T 6324.6-2014 English PDF (GBT6324.6-2014)

GB/T 6324.6-2014 English PDF (GBT6324.6-2014)

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GB/T 6324.6-2014: Test method of organic chemical products -- Part 6: Determination of liquid chroma -- Tristimulus colorimetry

This Part of GB/T 6324 specifies the instrument method that adopts the principle that was determined by International Commission on Illumination (CIE) in 1931, using X, Y, Z (tristimulus values) to express the color of clear liquid to determine the color (expressed in platinum-cobalt color). This Part is applicable to determine clarified, non-turbid liquid organic chemical products of which the nominal platinum-cobalt color number is 0~100 and the sample has similar absorption characteristics to the platinum-cobalt solution, without fluorescence emission.
GB/T 6324.6-2014
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 71.080.01
G 17
Test method of organic chemical products -
Part 6. Determination of color for liquids -
Tristimulus colorimetry
ISSUED ON. DECEMBER 31, 2014
IMPLEMENTED ON. JULY 01, 2015
Issued by. General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 General provisions ... 4
4 Method and principle ... 5
5 Instrument ... 5
6 Analysis steps ... 5
7 Allowable difference ... 6
Foreword
GB/T 6324 ?€?Test method of organic chemical products?€? consists of the following parts.
- Part 1. Water miscibility test of liquid organic chemical products;
- Part 2. Determination of dry residue after evaporation on a water bath for volatile organic liquids;
- Part 3. Determination of permanganate-reducing substances;
- Part 4. Determination of trace sulfur in organic liquid products -
Microcoulometric method;
- Part 5. Determination of trace quantities of carbonyl compounds in organic chemicals;
- Part 6. Determination of color for liquids - Tristimulus colorimetry; - Part 7. Determination of molten color;
- Part 8. Determination of water of liquid products - Carl???Fischer coulometric method.
This Part is Part 6 of GB/T 6324.
This Part was drafted in accordance with the rules given in GB/T 1.1-2009. This Part was proposed by China Petroleum and Chemical Industry Federation. This Part shall be under the jurisdiction of Subcommittee on Organic Chemicals of National Technical Committee on Chemicals of Standardization
Administration of China (SAC/TC 63/SC 2).
The drafting organizations of this Part. China Petroleum and Chemical
Corporation Beijing Research Institute of Chemical Industry, Ningbo Zhenhai Refining and Chemical Co., Ltd., Jiangsu Tianyin Chemical Co., Ltd.
Participants of this Part. Shanghai Yun Ding International Trade Co., Ltd., Baichuan Chemical (Ru Gao) Co., Ltd., Nantong Xingchen Synthetic Material Co., Ltd., Dana (Nanjing) Chemical Co., Ltd.
Main drafters of this Part. Huang Yu, Guo Yanling, Gao Jing, Bao Miaoqing, Xue Jianjun, Wan Yi, Liu Chang, Lai Junping, Hu Xiaoyi, Chen Jiao.
Test method of organic chemical products -
Part 6. Determination of color for liquids -
Tristimulus colorimetry
1 Scope
This Part of GB/T 6324 specifies the instrument method that adopts the
principle that was determined by International Commission on Illumination (CIE) in 1931, using X, Y, Z (tristimulus values) to express the color of clear liquid to determine the color (expressed in platinum-cobalt color).
This Part is applicable to determine clarified, non-turbid liquid organic chemical products of which the nominal platinum-cobalt color number is 0~100 and the sample has similar absorption characteristics to the platinum-cobalt solution, without fluorescence emission.
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 3143, Determination method of liquid chemical product color (Hazen unit - platinum - cobalt color number)
GB/T 3977, Specification of colors
GB/T 3978-2008, Standard illuminants and geometric conditions
GB/T 5698, Glossary of color terms
GB/T 6682, Water for laboratory use; Specifications
GB/T 8170, Rules of rounding off for numerical values and expression and
judgement of limiting values
3 General provisions
3.1 See GB/T 5698 for the terms and definitions involved in this Part.

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