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 to 9 Sodium Chlorate 10 to 14 Total Chlorine 15 to 18 Sodium Chloride 19 and 20 Total Alkalinity as Sodium Oxide (Na O) 21 to 24 Free Alkali as Sodium Hydroxide (NaOH) 25 to 28 Calcium Hypochlorite: Sampling 30 Available Chlorine 31 to 34 Water 35 to 40 Chloroisocyanuric Acids and Their Derived Salts: Sampling 42 Available Chlorine (Iodometric-Thiosulfate Method) 43 to 46 Available Chlorine (Arsenite-Iodometric Method) 47 to 50 Moisture 51 to 54

1.5 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.