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Thermo Fisher Scientific

Clean the flow-through cell

Make sure the flow-through transmission cell is clean before and after taking sample measurements with the Affirma Lubricant Analysis system.

Materials required:

  • Small volume of heptane or isooctane
  • Clean 10 ml Luer-Lok syringe (latex and silicone-oil free)
  • Clean, non-abrasive laboratory wipes (unscented and lotion-free; paper napkins work well)
  • Powder-free nitrile gloves
  • Safety glasses
 
CAUTION_General.png Avoid chemical exposure. Isooctane and heptane are chemical irritants. When handling isooctane or heptane: •
do not ingest
  • avoid contact with skin and eyes
  • avoid inhaling vapor or mist
  • wear gloves that provide adequate protection
  • properly dispose of soiled containers, wipes, gloves, etc.

 

To clean the flow-through transmission cell
  1. If a sample syringe is connected to the cell inlet port, remove the syringe from the inlet port.
  2. Use a clean laboratory wipe to remove any excess oil from the adapter connected to the cell inlet port.
 
CAUTION_General.png Splash hazard. Avoid applying excessive pressure to the flow-through cell (via the syringe). Sudden leaks can cause a skin and eyes splash hazard.
  1. Fill a clean syringe with about 5 ml of heptane or isooctane.
  2. Screw the end of the syringe into the adapter on the cell inlet tubing and slowly inject all of the solvent through the inlet tubing, flow-cell, outlet tubing and into a waste receptacle.

After you finish measuring the last sample for the day, it is a good idea to clean the cell with solvent and then inject a syringe full of air through the cell to remove the excess solvent.

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