Zipper strength is determined according to international testing methods.
| ASTM D 2061 | BS 3084 | JIS - S3015 |
Tolerance in length measures of zippers.
| Main Zipper Strengths | ||
|---|---|---|
| CHAIN CROSSWISE STRENGTH | TOP STOP HOLDING STRENGTH | BOTTOM STOP HOLDING STRENGTH BY TAPES SEPARATION |
| SEPARATING UNIT CROSSWISE STRENGTH | SLIDER LOCK STRENGTH | SLIDER TAB PULL-OFF STRENGTH (90 DEGREES) |
| Durability | ||
