The purpose of this standard is to provide the minimum requirements for ammonium sulfate, including physical, chemical, sampling, packaging, shipping, and testing requirements.<\/p>\n
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| 7<\/td>\n | Foreword I.\tIntroduction. I.A.\tBackground.\u2003Ammonium sulfate, (NH4)2SO4, is used by some water utilities as a source of ammonia in the formation of chloramines and as an activating agent in the formation of activated silica. It is readily soluble in water and consists of rhombic cr I.B.\tHistory.\u2003The first edition of this standard was prepared by the AWWA Water Purification Division. It was approved as tentative on July 15, 1949, and made standard on May 15, 1953, with the designation of AWWA B400-53. The second edition was prepared <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | I.C.\tAcceptance.\u2003In 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 | ||||||
| 9<\/td>\n | II.\tSpecial Issues.\u2003This standard has no applicable information for this section. 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. III.A.\tPurchaser Options and Alternatives.\u2003The following information should be provided by the purchaser: <\/td>\n<\/tr>\n | ||||||
| 10<\/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.\u2003Major changes made to the standard in this revision include the following: V.\tComments.\u2003If 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 at standa <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | AWWA Standard SECTION 1:\tGENERAL Sec. 1.1\tScope Sec. 1.2\tPurpose Sec. 1.3\tApplication <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | SECTION 2:\tREFERENCES SECTION 3:\tDEFINITIONS <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | SECTION 4:\tREQUIREMENTS Sec. 4.1\tPhysical Requirements Sec. 4.2\tChemical Requirements Sec. 4.3\tImpurities* <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | SECTION 5:\u2003VERIFICATION Sec. 5.1\tSampling <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Sec. 5.2\tTest Procedures <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Sec. 5.3\tNotice of Nonconformance <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | SECTION 6:\tDELIVERY Sec. 6.1\u2003Marking* Sec. 6.2\tPackaging and Shipping <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Sec. 6.3\tAffidavit of Compliance or Certified Analysis <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" AWWA B302-23 Ammonium Sulfate<\/b><\/p>\n |