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ISO 30500:2025PublishedNon-sewered sanitation systems — Prefabricated integrated treatment units — General safety and performance requirements for design and testingISO/DIS 25345Under developmentBuilding and civil engineering sealants — Classification and requirements for sanitary sealantsIWA 24:2016WithdrawnNon-sewered sanitation systems — General safety and performance requirements for design and testingISO 30500:2018WithdrawnNon-sewered sanitation systems — Prefabricated integrated treatment units — General safety and performance requirements for design and testing