This standard describes soda ash for use 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.\u2003Soda ash is the common name for the technical grades of anhydrous sodium carbonate (Na2CO3). Light and dense soda ash differ in physical characteristics only, such as density (weight of unit volume), angle of repose, and size and shape of I.B.\tHistory.\u2003The first edition of this standard for soda ash was prepared under the direction of the AWWA Water Purification Division. The standard was approved by the Executive Committee of the Water Purification Division and by the Water Works Practice 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.\u2003Soda ash is usually shipped in bulk or in 100-lb (45-kg) multiwall paper bags, although it is also available in drums and barrels. The material can be readily handled mechanically by screw or belt conveyors, bucket elevators, or pneuma <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 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: III.B.\tModification to Standard.\u2003Any modification to the provisions, definitions, or terminology in this standard must be provided by the purchaser. <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | V.\tComments.\u2003If you have any comments or questions about this standard, please call AWWA Engineering & 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 standard <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | AWWA Standard SECTION 1:\u2002GENERAL Sec.\u20021.1\tScope Sec.\u20021.2\tPurpose Sec.\u20021.3\tApplication <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | SECTION 2:\u2002REFERENCES SECTION 3:\u2002DEFINITIONS <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | SECTION 4:\u2002REQUIREMENTS Sec.\u20024.1\tPhysical Requirements Sec.\u20024.2\tChemical Composition Sec.\u20024.3\tImpurities <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | SECTION 5:\u2002VERIFICATION Sec.\u20025.1\tSampling <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Sec.\u20025.3\tInsoluble Matter Sec.\u20025.4\tTotal Available Alkali <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | SECTION 6:\u2002DELIVERY Sec.\u20026.1\tMarking <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Sec.\u20026.2 Packaging and Shipping <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Sec.\u20026.3\tAffidavit of Compliance <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" AWWA B201-18 Soda Ash<\/b><\/p>\n |