HG/T 2843-1997 Standard titration solutions, standard solutions, reagent solutions and indicator solutions commonly used in chemical analysis of fertilizer products HG/T2843-1997 standard download decompression password: www.bzxz.net

HG/T 2843--1997 Technical standard is equivalent to the relevant contents of the preparation, calibration and storage of standard solutions in ASTM1E2C0-L991 Preparation, calibration and storage of common standard and reagent solutions for chemical analysis of the American Society for Testing and Materials; it is equivalent to the relevant contents of the preparation of standard solutions (original wave) in ISO6353-1:1982 "Chemical analysis reagents—Part 1: Test methods for general use". This standard lists 11 standard titration solvents, among which eight standard titration solvents, sodium hydroxide, sulfuric acid, hydrochloric acid, silver nitrate, sodium metasulfate, potassium dichromate, potassium manganate and ammonium thiosulfate, are equivalent to ASTM E200-1991 acid-dissolving standard titration bath, which is equivalent to ISO 5790: 1979 "Industrial photochemical products-method for determination of chloride content-salt method" for preparation, calibration and storage of mercuric nitrate standard titration solution, and two standard titration solutions, disodium ethylenediaminetetraacetate (EDTA) and ferrous sulfate, are equivalent to domestic fertilizer standard methods. See Table 1 for details. Table 1 Abbreviations and chapter/article numbers of international standards and foreign advanced national standards used in this standard Standard titration solutions in this standard Abbreviations and chapter/article numbers of international standards and foreign advanced national standards Used in this standard 5.5.2.1 Cup titration Sodium hydrochloride Silver nitrate (sulfuric acid method) Sodium thiosulfate Sodium thiosulfate Mercuric nitrate Corresponding international standards and foreign advanced national standards are used Standard numbers ASTM E 2C0-1931 ASTM E 23C-1991 ASTM E 100-1991 ASTM E 200-1991 ASTM E 200-1991 200-1S91
ASTM E 200-1991
ASTM E 200-1991
ASIME200—1951
ISO 5700:1979
Adopts international standardsWww.bzxZ.net
and foreign advanced countries' standards, tea numbers
14 ~17
2nd~23
49--52
59~-62
61--66
Adhesion degree
The preparation of 26 standard solutions (stock solutions) listed in this standard, 20 of which are equivalent to 1S)6353-1, 1982. See Table 2 for details. Table 2 The standard solutions in this standard adopt the abbreviations of international standards. Standards Soluble carbon (Na) Sodium (Na) Iron (Fe) Adopt the international standards of science JS0 6353-1-1982 IS0 6353-1:1992 I5() 6353-1:1982 150 6353-1:1682
Adoption level
HG/T2843..-1997
In this standard
Chapter. Article number
Standard solution (stock solution)
Species (As)
Clam (P6)
Calcium (Ca)
Metal (Mg)
Zinc (Zn)
Mn
Phase
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