We source essential oils from around the
world. Once the price and availability are acceptable a sample of the
batch is obtained from the distiller.
The sample is tested in Australia on a Gas
Chromatograph / Mass Spectrometer (GCMS) to ascertain the percentages
of the component parts of the oil. These results are then compared by
computers to our standard requirements.
We have developed our required standards
over more than ten years of testing. The standards of every oil supplied
has been set through at least 100 prior tests. On some oils (e.g.
Lavender) we have in excess of 1,000 tests.
Our standards have also been developed
incorporating International Standards such as British Pharmocopiea.
Other objective tests such as Optical Rotation are also performed, as well
as subjective tests for odour and clarity.
If a sample passes this testing procedure a
purchase order is raised quoting the batch number of the sample. Once the
goods on order are received, a sample is taken from the drum and the same
testing procedure occurs.
If the results are not identical to the
original sample, the product is not passed and is placed in quarantine
until a decision is made whether or not to return the oil to the supplier.
If the quality is found to be unacceptable, the oil is returned
When an oil has passed quality assurance,
it is assigned an internal batch number. Two retention samples are also
taken at this time so that we can retest the oil at a later date.