GB/T 6324.6-2014 PDF EnglishUS$100.00 · In stock · Download in 9 seconds
GB/T 6324.6-2014: Test method of organic chemical products -- Part 6: Determination of liquid chroma -- Tristimulus colorimetry Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 6324.6: Historical versions
Similar standardsGB/T 6324.6-2014: Test method of organic chemical products -- Part 6: Determination of liquid chroma -- Tristimulus colorimetry---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT6324.6-2014 GB NATIONAL STANDARD OF THE PEOPLE’S 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 ContentsForeword... 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... 6ForewordGB/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 & Chemical Corporation Beijing Research Institute of Chemical Industry, Ningbo Zhenhai Refining & 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 colorimetry1 ScopeThis 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 referencesThe 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 terms3 General provisions3.1 See GB/T 5698 for the terms and definitions involved in this Part.4 Method and principleThis method uses water as a full transmission reference, and uses an instrument to measure X, Y, Z of transmitted light after passing through the sample.5 Instrument5.1 Colorimeter It shall have the CIE source C specified in Table 1 of GB/T 3978-2008 and the geometric condition colorimeter, chromometer or spectrophotometer specified in 6.3.1. 5.2 Sample cell or colorimetric tube The sample cell used shall be colorless and transparent. Incident and exit windows are parallel. Path length is 20mm ~ 150mm. The paired sample cell is preferred.6 Analysis stepsWarning. Some of the processes specified in the test method may lead to dangerous situations and the operator shall take appropriate safety and protective measures. 6.1 Reagents and material 6.2 Instrument calibration Debug the instrument to meet the test conditions specified in 5.1 according to the manufacturer's instructions. Adjust the instrument to the specifications of the selected sample cell or colorimetric tube. 6.3 Sample testing Pour the sample into the sample cell or colorimetric tube. Place in the optical path according to the operating instructions of the instrument. Record the platinum-cobalt color number read by the instrument.7 Allowable differenceThe absolute difference between the results of multiple instrument readings shall not be greater than the result calculated by equation (1). ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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