BS 680-2:1971
$86.31
Specification for roofing slates – Metric units
Published By | Publication Date | Number of Pages |
BSI | 1971 | 12 |
Slates from the Cambrian, Ordovician, Silurian, Devonian, Dalradian formations. Characteristics, standard designations, thickness gradings, marking descriptions, testing procedure for atmospheric conditions. Lengths and widths in work sizes, maximum and minimum manufacturing sizes, with notes on randoms and peggies appended.