This standard describes purified aluminum sulfate in liquid, ground, or lump form for use in the treatment of potable water, wastewater, or reclaimed water. It can be referenced in specifications for purchasing and receiving aluminum sulfate and can be used as a guide for testing the physical and chemical properties of aluminum sulfate samples. The stipulations of this standard apply when this document has been referenced and then only to aluminum sulfate used in the treatment of potable water, wastewater, or reclaimed water.<\/p>\n
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| 7<\/td>\n | Foreword I.\tIntroduction. I.A.\tBackground.\u2003Coagulation of suspended and colloidal particles in water using various forms of aluminum sulfate has been known since the seventeenth century. Although historical details are lacking, in the early days of water purification by coagulatio <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | I.B.\tHistory.\u2003A specification for Sulphate of Alumina was published in 1925 by the American Water Works Association (AWWA) in its Water Works Practice Manual.* On June 25, 1942, AWWA adopted the Emergency Alternate Specifications for Sulphate of Alumina, 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. II.A.\tSafety and Spill Control.\u2003Aluminum sulfate is a buffered acidic solution that causes irritation when it comes in contact with the eyes, skin, or mucous membranes. Protective clothing and equipment should be used when handling liquid alum. Good venti <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | II.B.\tProtective Equipment.\u2003Dry aluminum sulfate dust can cause irritations to the respiratory system and eyes. Dust masks, goggles, and gloves are recommended for persons working in the presence of dry aluminum sulfate dust. II.C.\tFirst Aid.\u2003Aluminum sulfate should be flushed from the eyes using copious amounts of water. If irritation persists, a physician should be consulted promptly. Aluminum sulfate should be washed from the skin with copious amounts of water. II.D.\tSpill-Control Considerations.\u2003Outdoor storage tanks should be suitably diked or otherwise provided with an adequate means of secondary containment. Appropriate secondary containment measures should be taken to prevent spills or leaks from indoor sto 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.\u2003When purchasing aluminum sulfate under the provisions of this standard, the following information should be provided by the purchaser: <\/td>\n<\/tr>\n | ||||||
| 11<\/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 revisions made to the standard in this edition 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; write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or e-mail at standards@awwa.org. <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | AWWA Standard SECTION 1:\tGENERAL Sec. 1.1\tScope Sec. 1.2\tPurpose Sec. 1.3\tApplication <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | SECTION 2:\tREFERENCES SECTION 3:\tDEFINITIONS <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | SECTION 4:\tREQUIREMENTS Sec. 4.1\tPhysical Requirements <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Sec. 4.2\tChemical Requirements Sec. 4.3\tImpurities\u2021 <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | SECTION 5:\tVERIFICATION Sec. 5.1\tSampling <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Sec. 5.2\tTest Procedures\u2014General Sec. 5.3\tSpecific Gravity <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Sec. 5.4\tWater-Insoluble Matter Sec. 5.5\tTotal Soluble Alumina and Aluminum <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Sec. 5.6\tTotal Water-Soluble Iron <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Sec. 5.7\tFerric Iron <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Sec. 5.8\tFerrous Iron Sec. 5.9\tBasicity or Free Acid <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Sec. 5.10\tTotal Alumina Alternative Method <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Sec. 5.11\tNotice of Nonconformance <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | SECTION 6:\tDELIVERY Sec. 6.1\tMarking Sec. 6.2\tPackaging and Shipping <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" AWWA B403-24 Aluminum Sulfate – Liquid, Ground, or Lump<\/b><\/p>\n |