Fuel and Lube Test kits for Industrial and Marine applications.

KV6 Viscometer Bath - 84200-3


The KV-6 Viscometer Bath is a temperature-controlled bath that maintains the temperature of viscometer tubes, which are used to measure the viscosity of liquid petroleum products.

The instrument consists of an oil-filled temperature-controlled bath. The bath holds up to six standard viscometer tubes, which can be viewed through the glass panel at the front of the instrument. Each aperture has a cover to minimise heat loss when not in use. LEDs illuminate the bath so that you can view the viscometer tubes more easily.



  • Accommodates up to 6 viscometer tubes
  • Temperature range ambient to 150 °C
  • Temperature stability ±0.01 °C up to and including 100 °C , ±0.03 °C above 100 °C
  • Digital temperature control with Thermostir Plus
  • Oil, silicone fluid or water filled depending on temperature of use
  • Double wall glass front panel ensures optimum insulation and reduce heat loss
  • Integral safety features
  • Clear and precise reading of viscometer tubes

An uninterrupted view of viscometer tubes is provided by an oversize double glazed front panel with the outer panel made from toughened safety glass to BS 3463. The outer panel is removable for easy cleaning.

A removeable and recessed 6 place top plate has 62 mm apertures and covers with provision for two thermometer holders. The recessed design allows viscometer tubes to sit low in the bath and provides you with a much improved vision of the upper timing marks on the viscometer tubes.

The instrument can hold seven viscometer tubes when used with the optional viscometer tube plate 84202-0 and 51 mm viscometer tube holders. A digitally controlled thermostir unit heats and stirs the bath, maintaining the temperature between 37 and 150 °C. A baffle helps ensure that the temperature is uniform throughout the bath.

When performing tests in higher ambient temperatures, you can connect an external cooling supply to the instrument’s internal cooling coil. The coolant circulates through the internal cooling coil, providing a temperature differential and allowing the thermostir to control the bath temperature more efficiently. The 99300-4 Mini Low Temperature Bath/Circulator can supply chilled water to the KV-6 Viscometer Bath for use at high ambient temperatures.

The large 50 litre capacity ensures minimum temperature recovery time after loading of bath, improving sample throughput.

Supplied with; Mains lead and instruction manual.

TEMPERATURE STABILITY ±0.01 °C up to and including 100 °C , ±0.03 °C above 100 °C
BATH FLUID Oil, Silicone fluid or water
VOLTAGE 220/240 V, 50/60 Hz
POWER 2.2 kW
SIZE (HXWXD) Bath outside dimensions 560 x 345 x 435 mm
Tank inside dimensions 526 x 273 x 400 mm
WEIGHT 33 kg
CCCN CODE Tariff 90278091
BS 188 Methods for determination of the viscosity of liquids
ISO 3104 Kinematic Viscosity of Transparent and Opaque Liquids and the Calculation of Dynamic Viscosity
ASTM D446 Standard specifications and operating instructions for glass capillary kinematic viscometers
ASTM D2170 Kinematic Viscosity of Bitumens (Asphalts)
DIN 51 366 Testing of mineral oil hydrocarbons; measurement of kinematic viscosity by means of the Cannon-Fenske viscometer, for opaque liquids
DIN EN ISO 3104 Methods of test for petroleum and its products. Transparent and opaque liquids. Determination of kinematic viscosity and calculation of dynamic viscosity
DIN 51 562 Determination of Kinematic Viscosity using Ubbelohde Viscometers, capillary Viscometers
IP 71 Determination of kinematic viscosity
ASTM D445 Method for Kinematic Viscosity of Transparent and Opaque Liquids
ASTM D2270 Standard Practice for Calculating Viscosity Index From Kinematic Viscosity at 40 and 100°C
BS 2000-71-2 & ISO 3105 Methods of test for petroleum and its products. Kinematic viscosity. Specifications and operating instructions for glass capillary kinematic viscometers.
BS EN 12595 & BS 2000-319 Bitumen and bituminous binders. Determination of kinematic viscosity
IP 319 Bitumen and bituminous binders – Determination of kinematic viscosity aromatic hydrocarbon types in middle distillates – High performance liquid chromatography method with refractive index detection.
IP 226 Petroleum products – Calculation of viscosity index from kinematic viscosity.