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GB/T 13025.2-2008 PDF English


Search result: GB/T 13025.2-2008 English: PDF (GB/T13025.2-2008)
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GB/T 13025.2-2008English90 Add to Cart 0-9 seconds. Auto-delivery. General test method in salt industry -- Determination of whiteness Valid
GB/T 13025.2-1991English199 Add to Cart 2 days General test method in salt industry--Determination of whiteness Obsolete
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GB/T 13025.2-2008: PDF in English (GBT 13025.2-2008)

GB/T 13025.2-2008 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 67.220.20 X 35 Replacing GB/T 13025.2-1991 General test method in salt industry – Determination of whiteness ISSUED ON. DECEMBER 31, 2008 IMPLEMENTED ON. MAY 01, 2009 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of the PRC. Table of contents Foreword ... 3  1 Scope ... 5  2 Normative references ... 5  3 Terms and definitions ... 5  4 Instruments and equipment ... 6  5 Test procedure ... 8  6 Results presentation ... 9  Foreword GB/T 13025 “General test method in salt industry” is divided into 13 parts. - GB/T 13025.1 General test method in salt industry - Determination of grain size - GB/T 13025.2 General test method in salt industry - Determination of whiteness - GB/T 13025.3 General test method in salt industry - Determination of moisture - GB/T 13025.4 General test method in salt industry Test method for salt industry - Determination of insoluble matter - GB/T 13025.5 General test method in salt industry - Determination of chloride ion - GB/T 13025.6 General test method in salt industry - Determination of calcium and magnesium ion - GB/T 13025.7 General test method in salt industry - Determination of iodine - GB/T 13025.8 General test method in salt industry - Determination of sulfate ion - GB/T 13025.9 General test method in salt industry - Determination of lead ion (photometric method) - GB/T 13025.10 General test method in salt industry - Determination of potassium ferrocyanide - GB/T 13025.11 General test method in salt industry - Determination of fluoride ion - GB/T 13025.12 General test method in salt industry - Determination of barium ion - GB/T 13025.13 General test method in salt industry - Determination of arsenic ion This part is part 2 of GB/T 13025. This part replaces GB/T 13025.2-1991 “General test method in salt industry - Determination of whiteness”. General test method in salt industry – Determination of whiteness 1 Scope This part of GB/T 13025 specifies the method for the determination of the whiteness of edible salt and industrial salt in the salt industry. This part is applicable to the determination of the whiteness of edible salt and industrial salt in salt industry. 2 Normative references The provisions in following documents become the provisions of this part through reference in this part of GB/T 13025. For the dated references, the subsequent amendments (excluding corrections) or revisions do not apply to this Standard; however, parties who reach an agreement based on this Standard are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies. GB/T 9086 The white standard plate for colorimetry and photometry JJG 512 Verification regulation of the whiteness meter 3 Terms and definitions The following terms and definitions apply to this part of GB/T 13024. 3.1 Whiteness It refers to the whiteness degree that characterizes the color of an object. The greater the whiteness value, the greater the degree of whiteness. The whiteness value of perfect reflecting diffuser (PRD) is 100. 3.2 Blu-ray brightness ......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.