Measurement of Barrel ID at Different Sections of Syringes
| Syringe Vendor and Type | Lot | Barrel ID Measurement (mean ± standard deviation) mm | ||
|---|---|---|---|---|
| Top (flange end) | Middle | Bottom (needle end) | ||
| Vendor 1 (siliconized glass) | Lot 1 | 6.38 ± 0.021 | 6.39 ± 0.018 | 6.38 ± 0.019 |
| Lot 2 | 6.38 ± 0.024 | 6.39 ± 0.023 | 6.38 ± 0.025 | |
| Lot 3 | 6.38 ± 0.013 | 6.38 ± 0.014 | 6.38 ± 0.016 | |
| Vendor 2 (siliconized glass) | Lot 1 | 6.34 ± 0.023 | 6.35 ± 0.023 | 6.34 ± 0.020 |
| Lot 2 | 6.35 ± 0.023 | 6.35 ± 0.020 | 6.35 ± 0.017 | |
| Lot 3 | 6.35 ± 0.018 | 6.35 ± 0.021 | 6.35 ± 0.019 | |
| Vendor 3 (siliconized glass) | Lot 1 | 6.34 ± 0.029 | 6.34 ± 0.027 | 6.34 ± 0.026 |
| Lot 2 | 6.36 ± 0.021 | 6.36 ± 0.021 | 6.36 ± 0.021 | |
| Vendor 4 (plastic) | Lot 1 | 6.21 ± 0.024 | 6.30 ± 0.014 | 6.34 ± 0.007 |