The standard specifies microhardness testing on transverse sections of welded joints of metallic
materials with high hardness gradients. It covers Vickers hardness tests in accordance with ISO 6507-1,
normally with test loads of 0,98 N to less than 49 N (HV 0,1 to less than HV 5).
The standard is not applicable to hardness testing of welds with loads of 49,03 N and above, which is covered by ISO 9015-1.
The standard is not applicable to Vickers hardness testing of resistance spot, projection and
seam welds, which is covered by ISO 14271.
The standard is not applicable to hardness testing of very narrow welds, e.g. those typically
produced by laser and electron beam welding (see ISO 22826).