Check a lath for cracking, damage and wear of teeths. Replace a lath if necessary.

Fig. 5.27. Measurement of a beating of a lath

Measure a beating of a lath (fig. 5.27).

Beating:

at most about A point: 0,15 mm;

at most about B point: 0,20 mm.

If the beating does not meet standard, replace a lath.