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NSF/ANSI 53-2013

Drinking water treatment units - Health effects

This issue incorporates test protocols to evaluate personal hand held DWTUs under all applicable sections of elective performance claims methods under section 7. The test method for evaluating mouth drawn DWTUs has been added under Annex F and the method for evaluating squeeze-type bottles has been added under Annex G. A structural integrity test method for all personal hand held devices has also been added under section 5

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