GB/T 2441.8-2010 PDF EnglishUS$90.00 · In stock · Download in 9 seconds
GB/T 2441.8-2010: Determination of urea -- Part 8: Sulphate content -- Visible turbidimetric method 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 2441.8: Historical versions
Similar standardsGB/T 2441.8-2010: Determination of urea -- Part 8: Sulphate content -- Visible turbidimetric method---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/GBT2441.8-2010 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 65.080 G 20 Replacing GB/T 2441.8-2001 Determination of Urea – Part 8. Sulphate Content – Visible Turbidimetric Method Issued on: JUNE 30, 2010 Implemented on: JANUARY 1, 2011 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative References ... 4 3 Principles ... 4 4 Reagents and Solutions ... 4 5 Apparatus ... 5 6 Analytical Procedures ... 5 7 Expression of Analytical Results ... 5 Determination of Urea – Part 8. Sulphate Content – Visible Turbidimetric Method1 ScopeThis Part of GB/T 2441 specifies determination of sulphate content in industrial used urea by visible turbidimetric method. This Part is applicable to the determination of sulphate content in urea produced by the synthesis of ammonia and carbon dioxide.2 Normative ReferencesThe provisions in following documents become the provisions of this Part through reference in this Part of GB/T 2441. For dated references, the subsequent amendments (excluding corrigendum) 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. HG/T 2843 Chemical Fertilizer Products - Standard Volumetric, Standard, Reagent and Indicator Solutions for Chemical Analysis3 PrinciplesAdd barium chloride solution into the acidic medium; which reacts with sulfate ion and produces white suspension particles of barium sulfate, the turbidity formed by which shall be compared with the standard turbidity.4 Reagents and SolutionsWhen no specification and preparation method are specified for the reagents, solutions and water used in this Part, they shall conform to the provisions of HG/T 2843. 4.1 Barium chloride solution, 50g/L; 4.2 Hydrochloric acid solution, 1+3; ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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