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These test methods detail the standard procedures for the sampling and chemical analysis of chlorine-containing bleaches including sodium hypochlorite (soda bleach) solutions, calcium hypochlorite, and chloroisocyanuric acids and their derived salts. Tests for sodium hypochlorite include the determination of available chlorine, sodium chlorate, total chorine, sodium chloride, total alkalinity as sodium oxide, and free alkali as sodium hydroxide. Tests for calcium hypochlorite, include the determination of available chlorine, and water. And finally, tests for chloroisocyanuric acids and their derived salts include the determination of available chlorine by iodometric-thiosulfate and arsenite-iodometric methods, and moisture.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 These test methods cover the sampling and chemical analysis of chlorine-containing bleaches. The methods appear in the following order:
|Sodium Hypochlorite (Soda Bleach) Solutions:|
|Sodium Chloride||19 and 20|
|Total Alkalinity as Sodium Oxide (Na2O)||21-24|
|Free Alkali as Sodium Hydroxide (NaOH)||25-28|
|Chloroisocyanuric Acids and Their Derived Salts:|
|Available Chlorine (Iodometric—Thiosulfate Method)||43-46|
|Available Chlorine (Arsenite—Iodometric Method)||47-50|
1.2 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. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1193 Specification for Reagent Water
ICS Number Code 71.100.99 (Other products of the chemical industry)
UNSPSC Code 47131807(Bleaches)