BS EN ISO 8099-1:2018 pdf free
BS EN ISO 8099-1:2018 pdf free.Small craft一Waste systems一Waste water retention
Craft with permanently installed holding tanks shall be fitted with a standard discharge connection as specified in Annex A to enable pipes of reception facilities to be connected with the craft discharge pipeline.
Any through-hull fittings for sewage shall be fitted with valves which are capable of being secured in the closed position.
The system shall be installed to prevent the emission of vapour and liquids within the craft.
The system shall be capable of operation throughout an ambient temperature range of +1 °C to +60 °C and shall withstand, when empty, an ambient temperature range of -40 °C to +60 °C.
The system shall be capable of operation, i.e. discharge of sewage from the toilet to the retention system, when the boat is heeled at all angles up to 20° for monohull sailing craft and 7° for other craft.
Back siphoning shall be prevented from raw water intakes and discharge outlets up to a heel angle to either side of at least 30° for monohull sailing craft, 20° for other craft and a trimmed condition at the bow or stern of at least 10°.
Back siphoning of the contents and escape of gas from the holding tank back through the toilet fixture shall be prevented when the boat is heeled at all angles up to 30° for monohull sailing craft, 20° for other craft and a trimmed condition at the bow or stern of at least 10°.
Escape of sewage from the holding tank to the exterior of the craft shall be prevented when the boat is heeled at all angles up to 30° for monohull sailing craft, 20° for other craft, at 90 % of tank capacity and to the interior of the craft under maximum anticipated conditions of heel or trim, i.e. 45° for monohull sailing craft, 30° for other craft.
Retention systems with the possibility of overboard discharge of sewage from the tank overboard shall be fitted with a seacock at the through-hull fitting. Any seacock used for overboard discharge shall be in accordance with ISO 9093-1 and ISO 9093-2, and shall be capable of being secured in the closed position.BS EN ISO 8099-1 pdf download.
