Determination of the evaporation loss of lubricating oils (particularly engine oils).
Procedure A uses the Noack evaporative tester equipment.
Procedure B uses the automated non-Woods metal Noack evaporative apparatus.

Measuring Noack Principle

A quantity of 65 grams of sample is heated to a specific temperature and maintained for 1 hour while it is enclosed in a crucible, the crucible’s cover is shaped to allow a constant vacuum of -2 mbar to remove from the crucible the evaporating portion of the sample.
At the end of the test, the sample is cooled and then reweighted: the difference, reported in percentage, represent the sample’s Evaporation Loss by the Noack Method.
Method A: bath is controlled at 250°C.
Method B: the sample is controlled at 245.2°C.

Measuring Temperature Probe

  • Platinum resistance PT100 class A

Measuring Parameters

  • Temperatures: in °C
  • Testing range: +225°C to +275°C
  • Measuring range: 0°C … +320°C
  • Resolution: 0.01 °C
  • Accuracy: ± 0.1 °C
  • Repeatability / Reproducibility: according ASTM D5800 or better

Electronic regulator for automatic control of differential pressure

  • Differential pressure 20 mm H20, accuracy 1%

Crucible, Crucible Cover and Heating Block

  • Same dimensions and volume as ASTM D5800
  • Electrically heated new designed aluminium block, no Woods metal needing

Heating unit

  • Electrical resistance, 500 W

Vacuum Pump

  • Equipped with high resistant Kalrez valve, inlet filter to remove product residuals
  • Automatic electronic control system able to maintain the -2mB during the analysis
  • Low voltage power supply

Integrated Touch Screen Panel PC

  • TFT/LCD 8”
  • Resolution 1024 × 768, 16.2 M colours
  • 2 USB ports for connection to an external printer and/or external PC
  • Storage capacity for more than 60’000 analysis
  • Lin-Tech operating software Lab-Link running in Windows ambient
  • Automatic reading of the weight suggested balance LT/B-2470/BCA500 INT- CAL

Software Features

  • All analytical parameters recorded
  • Customizable analysis parameters and methods
  • Customizable results report
  • Printable graphs and results

The software includes:


  • Standard method as per ASTM / IP / ISO / EN / DIN… norms of reference
  • Unknown sample
  • Audible alarm and displayed messages at the end of the analysis and in case of errors and/or malfunctions


  • Direct access to all analogue, digital, inputs and outputs
  • Selectable value displaying: °C / Volt


  • Automatic calibration of each temperature probe
  • Last calibration date referred to every single probe displayed and relative data printable
  • Display of calibration diagram
  • Insertion of offset values


  • Fields for introduction of operator and product name
  • Archive viewer for files recall
  • All analysis stored in Excel® compatible format
  • Storage capacity for more than 60’000 analysis
  • LIMS compatible


  • Length 400 mm
  • Width 450 mm
  • Max. height: 450 mm


  • 22 Kg

Electrical Supply

  • 220V ± 15% / 50 to 60 Hz
  • 115V ± 15% / 60 Hz

Cord cable

  • 3 conductors flexible cable 2 m (7 feet) length with PVC sheath oil and heat resistant as per CENELEC directives

Ambient Temperature

  • Max 35°C
  • H.R. 80%