| Rotational Viscometer / infinite-gap geometry | Rotational Viscometer / concentric cylinders | Stabinger Viscometer^{TM} | Gravimetric Capillary Viscometer / manual | Gravimetric Capillary Viscometer / automatic | Houillon Viscometer | Hoeppler Viscometer | Rolling Ball Microviscometer |
---|---|---|---|---|---|---|---|---|

Rotational Viscometer | Rotational Viscometer | Stabinger Viscometer^{TM} | Gravimetric Capillary Viscometer | Gravimetric Capillary Viscometer | Gravimetric Capillary Viscometer | Falling Ball Viscometer | Rolling Ball | |

infinite-gap geometry / open beaker | Concentric cylinder systems | Automatic | Manual | Automatic | Semi-automatic | Manual | Automatic | |

model for medium viscosity materials (R) | model for high shear/high torque measurements | Ubbelohde | Ubbelohde | Houillon | Hoeppler | Microviscometer | ||

Measured quantity | torque | torque | rotational speed, frequency | time | time | time | time | time |

Calculated quantity | dynamic viscosity | dynamic viscosity | dynamic/kinematic viscosity, density | kinematic viscosity | kinematic viscosity | kinematic viscosity | dynamic viscosity (density required) | dynamic/kinematic viscosity (density required) |

Viscosity range - min | 100 mPa.s | 1 mPa.s | 0.2 mPa.s | 0.3 mm²/s | 0.3 mm²/s | 2 mm²/s | 0.5 mPa.s | 0.3 mPa.s |

Viscosity range - max | 4,000,000 mPa.s | 109 mPa.s | 20,000 mPa.s | 100,000 mm²/s | 100,000 mm²/s | 2000 mm²/s | 70,000 mPa.s | 10,000 mPa.s |

Temperature - min | typically ambient | -20°C | -56°C | -40°C | -40°C | +20°C | -60°C | -30°C |

Temperature - max | typically ambient | 180°C | +105°C | +200°C | +200°C | +120°C | +150°C | +100°C |

Liquid bath thermostat required | no | yes | no (counter cooling for temperatures < 5 °C) | yes | yes | yes | yes | no (counter cooling for temperatures < 5 °C) |

Temperature change with same filling | limited | yes | yes | no | no | no | no | yes |

Automation possible | no | no | yes | no | yes | yes | no | yes |

Sample volume - typical | 500 mL | 1 to 90 mL | 5 mL | 18 mL | 25 mL | < 1 mL | 40 mL | starting from 0.1 mL typ. 1.5 mL |

Solvent volume - typical | --- | --- | 7.5 mL | 30 mL | 40 mL | < 10 mL | --- | manual: 5 mL flow-through: 10 mL |

Sample throughput - max / h | --- | --- | 30 (fast test, using compressed air for drying) | 2 | < 20 | up to 75 | 2 | manual: 10 / flow-through: 20 |

Measuring accuracy | approx. 20 % | > 3 % | < 1 % | < 1 % | < 1 % | approx. 2 % | < 1 % | < 1 % |

Shear rate control | no | yes | no | no | no | no | no | no |

Shear rate calculation | no | yes | yes | no | no | no | no | yes |

Lab space | < 0.25 m² | < 0.25 m² | < 0.25 m² | approx. 0.5 m² | approx. 0.5 m² | approx. 0.5 m² | < 0.25 m² | < 0.25 m² |

Standards and norms | e.g. ASTM D2196, ASTM D2393, ASTM D2556, ASTM D2669, ASTM D2983, ASTM D3232, ASTM D5133, USP <912> | DIN 1342, DIN 53019, EN/ISO 3219, DIN 54453 (double gap systems), USP <912> | ASTM D7042, ASTM D396, ASTM D975, ASTM D1655, ASTM D2270, ASTM D2502, ASTM D2880, ASTM D6074, ASTM D6448, ASTM D6823, ASTM D7152, ASTM D7566, ASTM D7666 | ISO 3104, ISO 3105, ASTM D445, ASTM D446, IP 71, BS 188, USP <911> | ISO 3104, ISO 3105, ASTM D445, ASTM D446, IP 71, BS 188, USP <911> | ASTM D7279 | DIN 53015, ISO 12058 | USP <913>, corresponds to DIN 53015 and ISO 12058 |

We offer typical values which are based on the values in brochures and standards but are not related to specific instruments.