This standard specifies methods of flattening test for the determination of plastic deformation of metallic conduit with circular cross-section, which can be used to reveal the defects.
In addition to the relevant product standards, this standard is applicable to metallic conduits with outer diameter no more than 600mm and wall thickness no more than 15% of the outer diameter.
2 Symbols, terms and units
See Table 1 and Figure 1 for the symbols, terms and units adopted in this standard.
