The requirements to meet this specification are outlined in the tables below. MIL-PRF-6855/1A supersedes MIL-R-6855/1.
This specification can read as follows
Dimensional tolerances: Tolerances of MIL-PRF-6855, table I and II, shall apply to sheet width and thickness respectively. Tolerance for sheet lengths shall be -0 percent, +3 percent of the specified length.
Surface finish: All synthetic rubber sheet surfaces shall be smooth and free from cloth imprint, pin holes, flash, or any other imperfections which may impair serviceability.
Verification: Inspection and test of synthetic rubber sheets shall be in accordance with MIL-PRF-6855, Section 4, VERIFICATION.