Stopper Plug Dimensions of Various Lots of Stoppers
| 13 mm Stopper Type | Lot No. | Diameter of Stopper Plug (mm) | ||
|---|---|---|---|---|
| Min | Max | Average | ||
| Non–blow back stopper DIN EN ISO 8362-2, d1 | 7.35 | 7.65 | N/A | |
| Specification manufacturer 1 | 7.30 | 7.50 | N/A | |
| Specification manufacturer 2 | 7.40 | 7.60 | N/A | |
| SNB1 | 1 | 7.30 | 7.44 | 7.37 |
| 2 (smallest non–blow back stopper) | 7.32 | 7.40 | 7.35 | |
| 3 | 7.30 | 7.42 | 7.36 | |
| 4 | 7.34 | 7.40 | 7.37 | |
| 5 (largest non–blow back stopper) | 7.37 | 7.48 | 7.41 | |
| 6 | 7.32 | 7.45 | 7.38 | |
| 7 | 7.30 | 7.45 | 7.38 | |
| 8 | 7.33 | 7.42 | 7.37 | |
| SNB2 | 1 (non–blow back stopper different manufacturer) | 7.44 | 7.55 | 7.48 |
| Blow back stopper DIN EN ISO 8362-2, d4 | 7.40 | 7.80 | N/A | |
| Specification manufacturer 1 | 7.7 | 7.9 | N/A | |
| SBB | 1 (blow back stopper manufacturer 1) | 7.70 | 7.71 | 7.70 |
SNB1 = stopper non–blow back manufacturer 1, SNB2 = stopper non–blow back manufacturer 2, SBB = stopper blow back manufacturer.
Lots marked in bold were chosen for investigations.