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AWWA B451-23 Standard for Poly (Diallyldimethylammonium Chloride), 2023
- Foreword [Go to Page]
- I. Introduction. [Go to Page]
- I.A. Background. Chemical clarification methods have been used to improve the quality of drinking water supplies since the late 1880s. In 1967, the first completely synthetic organic polyelectrolyte was accepted by the US Public Health Service for use in [Go to Page]
- I.B. History. The AWWA Standards Council authorized the development of this standard in 1979. The standard was developed by the AWWA Standards Committee on Polyelectrolytes and was approved by the AWWA Board of Directors on June 14, 1987. Subsequent editi [Go to Page]
- I.C. Acceptance (Water Supply Service Applications). In May 1985, USEPA entered into a cooperative agreement with a consortium led by NSF International (NSF) to develop voluntary third-party consensus standards and a certification program for direct and i
- I.D. Acceptance (Wastewater Service Applications). This is the first revision of ANSI/AWWA B451 that addresses wastewater service applications and standards.
- II. Special Issues. [Go to Page]
- II.A Safety. PolyDADMACs manufactured in solution form are not considered to be toxic as household products nor are they considered primary skin or eye irritants by the Consumer Product Safety Commission (US Federal Hazardous Substances Act). Good houseke [Go to Page]
- II.B Spill Control. PolyDADMAC should be disposed of according to federal, state, local, and provincial regulations. Solutions of polyDADMACs make floors and other surfaces extremely slippery. A dike should be formed around the spill area to contain as mu
- III. Use of This Standard. [Go to Page]
- III.A. Purchaser Options and Alternatives. This AWWA standard can be used to prepare a purchase specification but is not itself a specification because it cannot address product requirements unique to the purchaser’s specific application and does not esta [Go to Page]
- III.B. Product Performance. Performance evaluation via a laboratory jar test or other performance test is essential for confirming polyDADMAC activity. Such a test is the only means of evaluating possible changes in the water composition, in the temperatu [Go to Page]
- III.C. Modification to Standard. Any modification to the provisions, definitions, or terminology in this standard must be provided by the purchaser.
- V. Comments. If you have any comments or questions about this standard, please call AWWA Engineering and Technical Services at 303.794.7711; FAX at 303.795.7603; write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or email standards
- AWWA Standard
- SECTION 1: GENERAL
- Sec. 1.1 Scope
- Sec. 1.2 Purpose
- Sec. 1.3 Application
- SECTION 2: REFERENCES
- SECTION 3: DEFINITIONS
- Sec. 4.2 Product Certifications/Affidavit of Compliance
- Sec. 4.4 Qualifications
- Sec. 4.5 Chemical and Physical Requirements
- Sec. 4.6 Impurities (Potable Water)
- Sec. 4.8 Impurities (Wastewater)
- Sec. 4.9 Additives Requirements (Wastewater)
- Sec. 4.10 Product Technical Data Sheet
- SECTION 5: VERIFICATION
- Sec. 5.1 General
- Sec. 5.2 Sampling
- Sec. 5.4 Test Procedures
- Sec. 5.5 Inorganic Impurities
- Sec. 5.8 Notice of Nonconformance†
- SECTION 6: DELIVERY
- Sec. 6.1 Marking [Go to Page]
