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Part III: 1-29
Oil in Water Part III
Teledyne Analytical Instruments
5.6 Calibration with Prepared Sample
Zero and span fluids are prepared from the sample water which will be
ultimately continuously analyzed.
5.6.1 Zero Fluid Preparation
1. Collect one gallon of water from grab sample port by opening V3.
Make sure V4 is position down to collect sample through both F1, F2, and
F3 Zero preparation filters.
2. Filter one liter of collected water to remove total oil.
3. Divide the solution into two 500 ml portions and set aside for
later use.
NOTE: In the case of ultra pure water applications, obtain
an oil free sample (Zero) of the steam condensate fluid, other-
wise use demineralized water.
5.6.2 Span Fluid Preparation
1. Pour 500 milliliters of Zero water into the blender’s container. Ob-
tained from collecting sample out the grab sample port above in section 5.6.1
2. Calculate the number of microliters of oil that will be required
to produce a span fluid of full scale concentration when mixed
with the 500 milliliters of Zero water in the blender.
3. Obtain a small representative specimen of oil. Whenever possible,
this specimen
should be recovered from the actual sample water, so that the
calibration will be as representative of the oil composition of the
sample as is possible.
4. Prepare a syringe containing the number of microliters of oil calcu-