ASTM D892 foaming characteristics of lubrication oils

The Tamson foaming dual bath can be used to test the foaming characteristics of lubrication oils conform ASTM D892. The apparatus comes with two baths that can interchangebly be operated at 24°C and 93.5°C.

With the two baths, a rack with four flowmeters is standard supplied. Each bath has four openings for foaming cylinders. The rack can be used to hold up to four foaming cylinders, for example between sequence II and III of the test method. Also, the stoppers and optional dryer can be mounted on this rack.

The baths are equipped with a metal case for safe operation of the foaming baths. Furthermore, the baths offer an excellent temperature stability and have a drain for easy draining of the bath fluid. Tamson can supply all accessories needed for foaming tests according to ASTM D892, IP 146 and ISO 6247.

Custom-made configurations are available on request, for example when a comined apparatus for ASTM D892 and ASTM D6082 is needed. Also, optionally, a Digital Mass Flow Meter (DMFM) can be offered.

Primary benefits of Tamson D892 apparatus:

- Up to four positions per bath
- Drain valve to empty bath content
- Rack with clamps to overcome the buoyancy of the foam cylinders
- Stirrer with long shaft for optimal temperature uniformity
- Delrin stoppers instead of rubber stoppers, as rubber stoppers can crack over time
- Levelling feet to ensure the bath spirit is level
- Separate opening in cover to add bath medium to make sure the foaming cylinder is immersed to the 900 mL mark
- Robust zincor powder coated case around glass jar
- Removable outside window panels for cleaning purposes
- Each bath is equipped with two cooling coils and can be used interchangeably
- Thermometer openings in cover
- Stainless steel cover
- Complies to Sequence I – II – III