Historical
ASTM B523/B523M-07
Standard Specification for Seamless and Welded Zirconium and Zirconium Alloy Tubes
1.1 This specification covers three grades of zirconium and zirconium alloy seamless and welded tubes.
1.2 Unless a single unit is used, for example corrosion mass gain in mg/dm2, the values stated in either inch-pound or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. SI values cannot be mixed with inch-pound values.
ASTM International [astm]