ASTM-D2022 › Standard Test Methods of Sampling and Chemical Analysis of Chlorine-Containing Bleaches
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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.
Scope
1.1 These test methods cover the sampling and chemical analysis of chlorine-containing bleaches. The methods appear in the following order:
|
| Sections |
| Sodium Hypochlorite (Soda Bleach) Solutions: |
|
| Sampling | 5 |
| Available Chlorine | 6 – 9 |
| Sodium Chlorate | 10 – 14 |
| Total Chlorine | 15 – 18 |
| Sodium Chloride | 19 and 20 |
| Total Alkalinity as Sodium Oxide (Na2O) | 21 – 24 |
| Free Alkali as Sodium Hydroxide (NaOH) | 25 – 28 |
| Calcium Hypochlorite: |
|
| Sampling | 30 |
| Available Chlorine | 31 – 34 |
| Water | 35 – 40 |
| Chloroisocyanuric Acids and Their Derived Salts: |
|
| Sampling | 42 |
| Available Chlorine (Iodometric—Thiosulfate Method) | 43 – 46 |
| Available Chlorine (Arsenite—Iodometric Method) | 47 – 50 |
| Moisture | 51 – 54 |
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.
Keywords
bleaches; chlorine; hypochlorite; iodometric titrations ;; ICS Number Code 71.100.99 (Other products of the chemical industry)
To find similar documents by ASTM Volume:
15.04 (Soaps and Other Detergents; Polishes; Leather; Resilient Floor Coverings)
To find similar documents by classification:
71.100.99 (Other products of the chemical industry)
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Document Number
ASTM-D2022-89(2016)
Revision Level
1989 R16 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
Aug. 1, 2016
Document Type
Test Method
Page Count
9 pages
Committee Number
D12.12