ASTM E200 : 23

Standard Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis

Standard Details

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 StandardDetails, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.