Industrial exposure to fluoride occurs in the manufacture of superphosphate, where phosphate rock (which contains small amounts of fluoride) is crushed and dried, releasing fine particles of fluoride dust. Fluoride is also released as an impurity in the production of aluminium. Workers are monitored to prevent osteofluorosis.
Recommended sampling time is PRE SHIFT - following a period of 16 hours with no exposure; POST SHIFT - the last 2 hours to immediately following the end of the working day.
Send to separating if ambient. Send to trace metals if frozen.
Aliquot to Core laboratory for UCRN
Ambient (8 - 24 degrees Celsius)
Chilled (2 - 8 degrees Celsius)
Courier to lab ambient or chilled.
Urine fluoride occupational exposure interpretation
Industrial sample results depend on pre or postshift sampling times.
The pre-shift sample reflects the body (skeletal) burden of fluoride
while post-shift samples reflect exposure.
Urgent testing by arrangement.
Reports issued by Canterbury Health laboratories will have results along with current Normal population Reference Intervals (RI).
For interpretation against Biological exposure indexes (BEI) please refer to the latest Worksafe’s : Biological Exposure Index (BEI) review.
See link in “Additional Information” tab below for Workplace Exposure Standards on the Worksafe.govt.nz website
Ion selective electrode
$94.63 (Exclusive of GST)
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