ASTM E200-97(2001)e1 - 10.7.1997
 
Significance and Use

The accuracy of many analytical measurements is dependent upon the manner in which the standard solutions are prepared and stored, and the accuracy with which they are standardized. Combining the methods recommended for the preparation and handling of such solutions into one practice eliminates the necessity for covering such details in all of the methods wherein the solutions are used.

 
1. Scope

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 Documents2
Terminology3
Significance and Use4
Apparatus5
Temperature effects6
Measurements7
Reagents8
Concentration of solutions9
Mixing of solutions10
Storage of solutions11
Preparation and standardization of solutions12
Precision and Bias13
Sodium hydroxide solution, 0.02 to 1.0 N 14 to 19
Hydrochloric acid, 0.02 to 1.0 N20 to 28
Sulfuric acid, 0.02 to 1.0 N29 to 33
Hydrochloric acid, special 1 N34 to 38
Sulfuric acid, special 1 N39 to 43
Silver nitrate solution, 0.1 N44 to 48
Ammonium thiocyanate solution, 0.1 N49 to 53
Iodine solution, 0.1 N54 to 58
Sodium thiosulfate solution, 0.1 N59 to 63
Potassium permanganate solution, 0.1 N 64 to 68
Potassium dichromate solution, 0.1 N69 to 73
Methanolic sodium hydroxide solution, 0.5 N 74 to 79
Ceric sulfate solution, 0.1 N80 to 84
Acetous perchloric acid, 0.1 N85 to 89
Disodium ethylenediaminetetraacetate solution, 0.05 M90 to 94
Standard ion solutions95
Nonstandardized reagent solutions and indicator solutions96

1.3 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are given throughout this practice.

 
2. Referenced Documents

E203-24

Standard Test Method for Water Using Volumetric Karl Fischer Titration

E694-18(2024)

Standard Specification for Laboratory Glass Volumetric Apparatus

Reagent Chemicals

American Chemical Society Specifications (ACS)

D1193-06(2018)

Standard Specification for Reagent Water

E50-17

Standard Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials

E180-03

Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals (Withdrawn 2009)