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17/12/2016 - Newsletters
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New Directions Australia
Quality Control
New Directions UK - Quality Control

At New Directions we firmly believe that Quality Control is of utmost importance and it is imperative that the most meticulous tests are carried out for every product in our range. Uncompromising quality is a responsibility, which we take seriously. New Directions\' commitment to quality is coordinated by our in-house aroma therapist, chief chemist and quality control chemist. The most rigorous processes are implemented to determine the purity and potency of sourced oils. By maintaining this intense level of quality control and developing new methods and techniques, New Directions can ensure superior products.

GLC TESTING : One of the most sophisticated methods of testing, Gas Liquid Chromatography ensures that the most irregular types of adulterants can be found. Every batch of essential oil received must pass this analysis before reaching you.

VISUAL AND SMELL TESTS : Sensory tests are the initial tests conducted. The translucency, colour, viscosity, solubility and smell of the oil have been tested to maintain the quality of an optimum-grade essential oil.

SPECIFIC GRAVITY TESTS : Specific gravity is the density of a substance divided by the density of water. Since water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is the same number as density but without any units.

REFRACTIVE INDEX TESTS : The ratio of the velocity of light in a vacuum to its velocity in a transparent specimen. The index of refraction is related to the physical structure of the medium through which light is passing. For this reason, the index of refraction is a characteristic of substances that can be employed in identifying unknowns. The higher the refractive index, the greater the amount of dispersion, which increase the brilliance of a material.

ACID VALUE TESTS : The amount of free acid present in fat as measured by the milligrams of potassium hydroxide needed to neutralize it.

HYDROXYL VALUE TEST : A measure of hydroxyl (univalent OH) groups in an organic material.

IODINE VALUE TEST : Also called Iodine Number, a measure of the degree of unsaturation of an oil. The amount of iodine, in grams, that is taken up by 100 grams of the oil. A low iodine value implies a high degree of saturation.

SAPONIFICATION VALUE TESTS : The saponification value is the amount of alkali necessary to saponify a definite quantity of the sample. It is expressed as the number of milligrams of potassium hydroxide (KOH) required to saponify 1 gram of the sample.

HEAVY METAL TESTS : Lead, mercury and arsenic are tested to be free of detectable levels of these heavy metals.

Combining these tests ensures that the physical & chemical parameters of the oils are thoroughly examined. The thorough and continuous liaising between in-house chemists and aromatherapist ensure that oils that fail these stringent tests are discarded immediately. The result of these tests guarantee that our customers obtain the greatest level of confidence in New Directions and receive only the highest quality products. We welcome our clients to visit our laboratory and see our quality control systems.

CLEAN ROOM : Products are filled in dust free evironment

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