The TAPPI T 821 standard specifies a method for determining the stapling strength of corrugated fibreboards by selective separation. This method is used for the measurement of the force required to separate the corrugated fibreboard from the crest of the corrugated core paper and the tissue. Specifically, the test evaluates the stapling strength of the cardboard by applying pressure at the crest of the corrugated fibreboard and measuring the force required for separation. This standard is essential to ensure that the corrugated fibreboard has sufficient strength and durability during Encasement and transportation.
| Status | Active |
|---|---|
| CCS | ICS |
| Release Date | 2017-01-01 00:00:00 | Implementation Date |