Errecom ER-RK1349 Acid Test

SKU: ER-RK1349
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Accurate test to verify the Presence of Acid in A/C Compressors Lubricant / Oil


ACID-TEST is an essential product to locate the presence and the formation of acid inside vehicle A/C Systems. The use of ACID-TEST is a very important step in regular preventative maintenance and provides a fast and accurate method to detect the presence of acid in compressor oils.

The acidity of a system is generally caused by the natural decomposition of gases and lubricants in it; these derivatives can react to the presence of humidity, generating organic, carbonic, hydrochloric, hydrofluoric acids.
This kind of acids have a very high aggressiveness toward metals: that is the cause of many leaks or of the break of the compressor in the most dangerous cases.

The system does not signal the level of acidity. A lubricant colour change is noticeable just in some dangerous cases: this is due to the presence of oxidized metal in it.


ACID-TEST contains chemical ingredients that react when in contact with acidity, changing their colour and indicating the nominal pH level of compressor oil.


  • Pick up a small quantity (mL) of lubricant from the system
  • Pour 2 mL of POE or 4 mL of any other lubricant in a container
  • Tighten the cap securely and shake the content of the container energetically for some seconds
  • Watch the change of the colour:
    – if purple or blue – the lubricant has a low level of acidity. No intervention needed
    – if green – the lubricant has a medium level of acidity. An intervention is required to correct the conditions of the system.
    – if yellow – the lubricant has a high level of acidity. A strong correction is required and even a general check-up is, in order to solve other possible problems.


  • Works with all lubricants (POE – ABZ- Pao – PAG – PVE – Mineral)
  • Accurate results in seconds.
  • Easy to use
  • Biodegradable
  • Non-flammable
  • Non-toxic
  • Non-hazardous
  • Inexpensive (especially compared to laboratory acid tests)
  • The plastic box contains 4 tests.


4 x test bottles,l 1 x small carry box.


Brand: Errecom
Part Number: ER-RK1349.