This specification covers uncoated cotton duck tarpaulins (see 6.1). Intended Use: Classes 1, 2 and 4 tarpaulins are for heavy-duty cover, construction and general marine service use. Class 3 tarpaulins are for light-duty general tarpaulin use and for use where weight is a factor when transported by personnel.

This specification covers uncoated cotton duck tarpaulins (see 6.1). Intended Use: Classes 1, 2 and 4 tarpaulins are for heavy-duty cover, construction and general marine service use. Class 3 tarpaulins are for light-duty general tarpaulin use and for use where weight is a factor when transported by personnel.