ASTM E 200:2023

1.1 This practice covers procedures for the preparation, standardization, and storage of the standard volumetric solutions and reagent testing solutions commonly used in chemical analysis. 1.2 The information in this practice is arranged as follows: Sections Referenced Documents 2 Terminology 3 Significance and Use 4 Apparatus 5 Temperature effects 6 Measurements 7 Reagents 8 Concentration of solutions 9 Mixing of solutions 10 Storage of solutions 11 Preparation and standardization of solutions 12 Precision and Bias 13 Sodium hydroxide solution, 0.02 to 1.0 meq/mL ( N ) 14 to 19 Hydrochloric acid, 0.02 to 1.0 meq/mL ( N ) 20 to 28 Sulfuric acid, 0.02 to 1.0 meq/mL ( N ) 29 to 33 Hydrochloric acid, special 1 meq/mL ( N ) 34 to 38 Sulfuric acid, special 1 meq/mL ( N ) 39 to 43 Silver nitrate solution, 0.1 meq/mL ( N ) 44 to 48 Ammonium thiocyanate solution, 0.1 meq/mL ( N ) 49 to 53 Iodine solution, 0.1 meq/mL ( N ) 54 to 58 Sodium thiosulfate solution, 0.1 meq/mL ( N ) 59 to 63 Potassium permanganate solution, 0.1 meq/mL ( N ) 64 to 68 Potassium dichromate solution, 0.1 meq/mL( N ) 69 to 73 Methanolic sodium hydroxide solution, 0.5 meq/mL ( N ) 74 to 79 Ceric sulfate solution, 0.1 meq/mL ( N ) 80 to 84 Acetous perchloric acid, 0.1 meq/mL ( N ) 85 to 89 Disodium ethylenediaminetetraacetate solution, 0.05 mol/L( M ) 90 to 94 Standard ion solutions 95 Nonstandardized reagent solutions and indicator solutions 96 1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are given throughout this practice. Consult current OSHA regulations, suppliers' Safety Data Sheets, and local regulations for all materials used in this specification. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

71.040.30