2015/056: Regarding the compliance of asphalt roof shingles to roofs where the rainwater is harvested and used as potable water

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This determination discusses the approaches used in two different test methodologies for products that are used in contact with drinking-water. The determination considered whether there is evidence currently available that would indicate whether asphalt shingles used as part of a rainwater harvesting system will leach contaminants or particulates to an extent that would make the collected water unsuitable for human consumption (non-potable).

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