| SKU | Size | Nom. Constant (B) | Nom. Constant (C) | Nom. Constant (D) | Visc. Range |
| 940-445-025 | 25 | 2 | 1 | 0.7 | 42 – 800 |
| 940-445-050 | 50 | 8 | 4 | 3 | 180 – 3,200 |
| 940-445-100 | 100 | 32 | 16 | 10 | 600 – 12,800 |
| 940-445-200 | 200 | 128 | 64 | 40 | 2,400 – 52,000 |
| 940-445-400 | 400 | 500 | 250 | 160 | 9,600 – 200,000 |
Asphalt Institute is similar to Cannon Manning Vacuum except a graduated capillary is used in place of two timing bulbs. A sample of approximately 4mL is needed. Supplied calibrated with certificate. Recertification available.
