The purpose of this standard is to provide the minimum requirements for rubber-gasket joints for ductile-iron pressure pipe and ductile-iron and gray-iron fittings, including requirements and inspection.<\/p>\n
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| 9<\/td>\n | Foreword I.\tIntroduction. I.A.\tBackground.\u2003Cast-iron pipe was originally made with flanged joints, using lead gaskets. Improved joints of this type are still used for many aboveground plant installations and other specialized applications. I.B.\tHistory.\u2003American National Standards Committee A21 on Cast-Iron Pipe and Fittings was organized in 1926 under the sponsorship of the American Gas Association (AGA), the American Society for Testing and Materials (ASTM), AWWA, and the New England Wate <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | I.C. Acceptance. In May 1985, the US Environmental Protection Agency (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 <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | II.\tSpecial Issues. II.A.\tAdvisory Information on Product Application.\u2003The following special service requirements should be noted: <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | II.B\tChlorine and Chloramine Degradation of Elastomers.\u2003The selection of materials is critical for water service and distribution piping in locations where there is a possibility that elastomers will be in contact with chlorine or chloramines. Documented III.\tUse of This Standard.\u2003It is the responsibility of the user of an AWWA standard to determine that the products described in that standard are suitable for use in the particular application being considered. To ensure product compliance with standard r <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | III.B.\tModification to Standard.\u2003Any modification of the provisions, definitions, or terminology in this standard must be provided by the purchaser. IV.\tMajor Revisions.\u2003The major revisions in this edition of this standard are as follows: V.\tComments.\u2003If you have any comments or questions about this standard, please call AWWA Engineering and Technical Services at 303.794.7711; write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or email at standards@awwa.org. <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | SECTION 1:\tGENERAL Sec. 1.1\tScope <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Sec. 1.2\tPurpose Sec. 1.3\tApplication SECTION 2:\tREFERENCES <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | SECTION 3:\tDEFINITIONS <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | SECTION 4:\tREQUIREMENTS Sec. 4.1\tMaterials Sec. 4.2\tPermeation Sec. 4.3\tGeneral Requirements <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Sec. 4.4\tSpecial Requirements for the Mechanical Joint <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Sec. 4.5\tSpecial Requirements for the Push-on Joint <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Sec. 4.6\tSpecial Requirements for the Flanged Joint <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Sec. 4.7\tPerformance Requirements <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | SECTION 5:\tVERIFICATION Sec. 5.1\tInspection Sec. 5.2\tCertification and Test Records <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Sec. 5.3\tBasis for Rejection SECTION 6:\tDELIVERY Sec. 6.1\tMarking <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Sec. 6.2\tPacking Sec. 6.3\tAffidavit of Compliance <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | Mechanical-Joint Bolts, Gaskets, and Installation <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | Effects of Chloramines on Ductile-Iron Pipe Gaskets and Elastomers <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" AWWA C111\/A21.11-23 Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings<\/b><\/p>\n |