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1.1 This guide covers procedures for well-defined recordkeeping of microfiltration (MF) and ultrafiltration (UF) systems.

1.2 This guide includes a start-up report, recordkeeping of MF/UF operating data, recordkeeping of pretreatment operating data, and a maintenance log.

1.3 This guide is applicable to waters including surface water, ground water and some wastewater (secondary effluent) but is not applicable to membrane bioreactors or process streams.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

4.1 Proper operation and maintenance of an MF or UF system are key factors in obtaining successful performance. This guide provides the necessary input for the evaluation of the performance of the MF/UF system, the pretreatment system, and the mechanical equipment in the plant.

4.2 This guide is for general guidance only and must not be used in place of the operating manual for a particular plant.

4.3 Site-dependent factors prevent specific recommendations for all recordkeeping. Thus, only the more general recordkeeping is covered by this guide.

4.4 This guide can be used for both surface and ground water and systems which contain either spiral-wound or hollow-fiber devices.