Density Analysis Standards and Test Methods
PAPER & PAPERBOARD SUBSTRATES
| Test | ASTM # | ISO # | TAPPI # |
| Air permeance of paper and paperboard (Sheffield method) | 5636-4 | T 547 om-18 | |
| Air resistance of paper (Gurley method) | 5636-5 | T 460 om-16 |
PLASTIC SUBSTRATES
| Test | ASTM # | ISO # | TAPPI # |
| Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement | D792 | 1183 |