适用于测量透明液体。精度高，使用方便。
总长度283毫米;近似样品体积18ml。
附有UKAS校准证书(ISO 17025)，试验室编号0247
ASTM Ubbelohde Specifications: ASTM D446, ISO 3105, IP 71 Part 2, BS188
ASTM Ubbelohde Test Methods: ASTM D445, ISO 3014, IP 71 Part 1, BS 188
| Part No. | Size | Constant | Range (mm²/s) |
|---|---|---|---|
| 1643/01 | O | 0.001 | 0.3 to 1 |
| 1643/02 | OC | 0.003 | 0.6 to 3 |
| 1643/03 | OB | 0.005 | 1 to 5 |
| 1643/04 | 1 | 0.01 | 2 to 10 |
| 1643/05 | 1C | 0.03 | 6 to 30 |
| 1643/06 | 1B | 0.05 | 10 to 50 |
| 1643/07 | 2 | 0.1 | 20 to 100 |
| 1643/08 | 2C | 0.3 | 60 to 300 |
| 1643/09 | 2B | 0.5 | 100 to 500 |
| 1643/10 | 3 | 1.0 | 200 to 1,000 |
| 1643/11 | 3C | 3.0 | 300 to 3,000 |
| 1643/12 | 3B | 5.0 | 1,000 to 5,000 |
| 1643/13 | 4 | 10 | 2,000 to 10,000 |
| 1643/14 | 4C | 30 | 6,000 to 30,000 |
| 1643/15 | 4B | 50 | 10,000 to 50,000 |
| 1643/16 | 5 | 100 | 20,000 to 100,000 |
