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Database: 189760 (31 May 2025)
PDF GB/T 2441.8-2010 English (GB/T 2441.8-2001: Older version)
Search result: GB/T 2441.8-2010 (GB/T 2441.8-2001 Older version)
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GB/T 2441.8-2010
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Determination of urea -- Part 8: Sulphate content -- Visible turbidimetric method
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GB/T 2441.8-2001
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Determination of urea Determination of sulphate content Visible turbidimetric method
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GB/T 2441.8-2010: PDF in English (GBT 2441.8-2010)
GB/T 2441.8-2010 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 Contents Foreword ... 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 Method 1 Scope This 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 References The 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 Analysis 3 Principles Add 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 Solutions When 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;
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Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
Similar standards:
GB/T 2441.7
GB 8569
GB/T 3600
GB/T 2441.4