As ‘lead free’ is not currently defined by law in Australia and New Zealand, our definition of Lead Safe™ is based on the requirement of s1417 of the USA’s Safe Drinking Water Act (SDWA) and the relevant US standards NSF61 / NSF372.  The SDWA defines ‘lead free’ as “not more than a weighted average of 0.25% lead when used with respect to the wetted surface of pipes, pipe fittings, plumbing fittings and fixtures”.