AS NZS 4766:2020 pdf free.Rotationally moulded buried, partially buried and non-buried storage tanks for water and chemicals. 2.7.3 All other tank types When tested in accordance with ASTM D2565, the polymer compound for tanks, fusion-bonded fittings and welding rods shall contain UV stabilizers such that the natural (non-pigmented) compound will retain 50 % tensile elongation after 8 000 h of...
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