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NSF International -Ann Arbor, MI, US, National Sanitation Foundation

NSF International -Ann Arbor, MI, US, National Sanitation Foundation, 1984. National Sanitation Foundation, Plastic piping system components and related materials, (Standard number) Ann Arbor, MI, USA: National Sanitation Foundation. Available at: https://nl.ircwash.org/sites/default/files/262.1-84NA-1867.pdf.

Publicatiedatum: 29/12/2004

NSF International -Ann Arbor, MI, US, National Sanitation Foundation, 1984. Standard no. 14 for plastic piping system components and related materials 5th rev. ed.e ed., Ann Arbor, MI, USA: National Sanitation Foundation. Available at: https://nl.ircwash.org/sites/default/files/262.7-84ST-3869.pdf.

Publicatiedatum: 29/12/2004

NSF International -Ann Arbor, MI, US, National Sanitation Foundation, 1983. Standard no. 54 for flexible membrane liners, Ann Arbor, MI, USA: National Sanitation Foundation. Available at: https://nl.ircwash.org/sites/default/files/262.7-83ST-3868.pdf.

Publicatiedatum: 29/12/2004

NSF International -Ann Arbor, MI, US, National Sanitation Foundation, 1976. Second National Conference on individual wastewater systems : November 5-7,1975, Ann Arbor, MI, USA: National Sanitation Foundation.

Publicatiedatum: 29/12/2004

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