Entry (vii) and (viii) on list of materials encompassed by the term “corrosion resistant”: (vii) nickel or alloys with more than 40 +/- 2 percent nickel by weight (some examples: Alloy 400, AMS 4675, ASME SB 164-B, ASTM B-127, DIN2.4375, EN60, FM60, IN60, Hastelloy, Monel, K500, UNS NO4400, Inconel 600, Colmonoy Nr.6); (viii) alloys with more than 25 +/- 2 percent nickel and 20 +/- 2 percent chromium and/or copper by weight (some examples: Alloy 825, Cunifer 30Cr, EniCu-7, IN 732 X, Inconel 800, Monel 67, Monel WE 187, Nicrofer 3033, UNS C71900, 904L, and CP40).