The entry of water, foul gases, sewage and sullage from sanitary drainage into buildings must be avoided; the drainage must be protected against internal contamination; foul gas entry must be avoided by keeping trap seals at no less than 70 millimetres in pressurised rooms and 25 millimetres elsewhere at pressures up to 375 pascals either way (or equivalent safety); and surface, sub-surface and stormwater must be kept out of the system. Designers should consider the type, quality and quantity of waste and the compatibility of materials.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.