Labels:bulletin board | emerald | sky OCR: Metal Lath Industry Specifications The following slides show the A.S.T.M. specification for metal lath. The American Society for Testing and Materials (A.S.T.M.) the governing body that prescribes standard specifications for products pasn in construction. A.S.T.M. c- 847 15 the applicable specifi ication providing guidelines for Metal Lath. esting used