DOCUMENT

SPEC - Specification_Quick Lime 2005

  • YEAR CREATED: 2005
  • ENTITY TYPE: City/Township
  • TYPE OF DOCUMENT: SPEC - Specification
The document is a purchase specification for Tekkem Slaker Quicklime in bulk quantities for the City of Austin, Texas. The document outlines the scope and classification of the quicklime, applicable specifications, functional requirements, material requirements, samples inspection and test requirements, other requirements, and performance requirements. The quicklime is intended for use in the treatment and softening of municipal water supplies. It must comply with the American Water Works Association (AWWA) standards for quicklime, with modifications outlined in the document. It must also conform to the ANSI/NSF Standard 60 for direct additives. The quicklime should be suitable for treating and softening municipal water supplies without imparting taste or odor. It should not contain any harmful impurities that could have deleterious effects on health. The particle size should be suitable for handling by a screw conveying system or pneumatic conveying equipment, and it should be suitable for RDP Tekkem slaking machines. The quicklime must contain at least 90% available calcium oxide. It should produce a minimum temperature rise in 3 minutes by the AWWA Dewar flask method and should not produce more than 2.5% insoluble material when tested. The fluoride content should not increase the fluoride content of the water by more than 0.3 ppm. It should be freshly burned and free of carbonate solids and siliceous material. The document also includes requirements for analysis, samples, inspection, and testing. Bidders must provide an affidavit stating compliance with requirements and submit a typical sieve analysis of the lime. The supplier must provide monthly tabulations of quality control test results. Upon delivery, a sample will be collected for testing. The City of Austin reserves the right to reject a supplier's entire load based on the temperature rise analysis of this one sample. Other requirements include weight verification, trucks equipped with a 4" camlock connection, and the City of Austin's prohibition of making physical changes to existing lime slakers. The document also specifies the delivery location and requirements for bulk trucks equipped with a blower for unloading lime into the plant's bulk lime storage silo. The supplier is responsible for ensuring compliance with all the specified requirements.
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