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ASTM D2022-89(2024)

Standard Test Methods of Sampling and Chemical Analysis of Chlorine-Containing Bleaches
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ASTM D2022-89(2024)

Standard Test Methods of Sampling and Chemical Analysis of Chlorine-Containing Bleaches

PUBLISH DATE 2024
ASTM D2022-89(2024)

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 chlorine,
  • 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.

Tests for chloroisocyanuric acids and their derived salts include the determination of:

  • available chlorine by iodometric-thiosulfate and arsenite-iodometric methods, and
  • moisture.

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, health, and environmental 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.

1.3 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.

SDO ASTM: ASTM International
Document Number D2022
Publication Date Nov. 22, 2024
Language en - English
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