An issue originally identified by Air Purity has lead WorkSafe New Zealand to now consider there to be health and safety risks arising from SCUBA and SCBA cylinders manufactured from aluminium alloy 6351, and has withdrawn their design approvals.
From 31 October 2017, testing and filling stations should not test or fill any SCUBA or SCBA cylinder made from aluminium alloy 6351 listed on the WorkSafe website and available on the Read More button below.
Set up in 2013, Air Purity Limited is an independent, and 100% owned subsidiary of the New Zealand Underwater Association. In 1982, NZ Underwater identified the need to ensure safe diving practices were supported by quality assurance procedures extended to dive cylinders and air filling equipment, thus developing the SCAP (Scuba Cylinder Audit Program). Today, Air Purity is a primary point of contact for clean breathing air testing, SCAP cylinder audit and certification, air-fill operator certifications, and recreational boat training courses specific to the New Zealand underwater community.