Low-Temperature Viscosity | Cloud & Pour Point
Test Methods
Models Available
The King BLB liquid bath is available in (3) models based on your temperature needs and can run multiple test methods with different hardware configurations.
Low-Temperature Viscosity:
– The King BLB tests low-temperature viscosity of ATF’s, gear oils, hydraulic fluids, and other fluid lubricants using a rotational viscometer mounted on the bath top after cooling to a predetermined test temperature based on the desired test method (D2983, DIN 51398, IP267).
– Unique Tannas SimAir® Test Cells provide proper sample temperature control for accurate, precise results and permits each test cell to operate independently, increasing productivity for D2983 and IP 267 testing.
– Features a 12-position carousel.
King Cloud & Pour Point Bath:
– The King BLB can measure low temperature Cloud & Pour Point tests of petroleum products – an index of the lowest temperature of its utility for certain applications. The BLB offers the manual D97, D2500, and D5853 testing techniques and a self-contained refrigeration system with ramp/soak temperature programming ability. The King instrument is a cost-effective and user-friendly alternative to expensive automated Cloud & Pour Point devices.
With ASTM D2983, low-temperature studies by automobile manufacturers began in the 1950s due to the failure of automatic transmissions in cold temperatures. In 1971, a procedure was written and accepted as ASTM D2983. The original technique used a Balsa wood block to hold samples in a cold air cabinet. The samples were removed from the cabinet and tested with a rotational, bench-top Viscometer. In the mid-1990s, Tannas developed and patented the SimAir® Test Cell for use in a constant temperature liquid bath to dramatically improve the test operation, usability, and precision.
The Cloud Point (ASTM D2500) test method for petroleum products and biodiesel fuels was originally approved in 1966. The cloud point is the temperature of a liquid sample when the smallest observable cluster of hydrocarbon crystals first appears at the bottom of the test jar when cooled under prescribed conditions and examined periodically.
Pour Point method (ASTM D97) was originally approved by ASTM in 1927 and is still used today as the manual technique for pour point testing. The lowest temperature at which movement of the sample is observed is recorded as the pour point.
Standard bath features:
LNP-5 | Low-Temperature Newtonian Oil
Contact King Refrigeration for additional reference oils to run ASTM D2983 or DIN 51398.
Instrument
170200: King BLB Low-Temperature Liquid Bath (-40°C) – Model BLB 701, 220V, 50/60 Hz Power
180100: King BLB Low-Temperature Liquid Bath (-70°C) – Model BLB 702, 220V, 50/60 Hz Power
170400: King BLB Low-Temperature Liquid Bath – Model BLB DIN, 220V, 50/60 Hz Power
King BLB & DIN Accessories and Spare Parts
100235: Test Cell Assembly – SimAir®
170019: Test Cell Assembly – DIN 51398
170018: Glass Stator – DIN 51398
100236: Glass Stator – SimAir® (D2983)
100019: Viscometer – Digital, 220V
100005: Viscometer – Touchscreen, 220V
350190: Desiccant Assembly (with tubing)
550175: Media Refill – Desiccant (1 lb. / 0.45 Kg)
170028: Holding Rack – Test Cell
170033: Storage Block – Spindle
950496: Stir Bar – Magnetic
The patented SimAir® Test Cells utilize a unique air-gap between the test sample and the liquid bath medium to simulate the original air bath method.
The BLB Test Cell Carousel accommodates twelve (12) samples, allows convenient alignment of each cell to the appropriate test position, and holds both SimAir® and DIN glassware.
A user-friendly touchscreen viscometer facilitates D2983 and DIN 51398 testing.