| OELCHECK test instrument: | Spectro Arcos ICP-OES |
| Sample quantity: | 1 ml |
| Unit: | mg/kg (1,000 mg/kg = 1,000 ppm = 0.1% by weight) |
| Test result: | aluminium, barium, lead, boron, chromium, iron, potassium, calcium, copper, magnesium, molybdenum, sodium, nickel, phosphorus, sulphur, silicon, zinc, tin Indicated if the values are over 1 mg/kg: manganese, silver, titanium, vanadium |
| Result range: | 0 - 30,000 ppm |
| Analysis for: | all oils |
| Brief description: | The oil samples must be diluted first of all. 1 ml of the sample is taken from the sample bottles in the sample tray using a "diluter" and is diluted in a 1:10 ratio with kerosene before being poured into a test tube. Prior to analysis, the samples are stirred thoroughly in a sample changer, before being pumped into the nebuliser with a peristaltic pump. They are then atomised with an argon flow. The aerosol then enters a cyclone chamber where the large drops are removed. The aerosol, now prepared, enters the plasma, a mixture of atoms, ions and electrons. The temperature is approx. 10,000 °C. This extremely hot plasma provides the energy to stimulate the individual elements. The resulting radiation emitted, which has a characteristic wavelength for each individual element, is spread out spectrally and detected with a CCD chip. This allows an entire emission spectrum to be absorbed. |
| Underlying test standard: | ASTM D5185 |
