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Haloacetic Acids or HAAs containers are preserved with Ammonium Chloride. Please see the Safety Data Sheet attached, for more information.

Sodium Thiosulphate is used as a preservative for bacteriological testing.  Coliforms, Fecal Coliforms and E.coli are quenched with preservative.  Primarily...

Zinc Acetate is used to preserve containers used to collect water samples for sulphide analysis. Please see the Safety Data Sheet attached, for more inf...

Metals containers are preserved with Nitric Acid.   If laboratory filtration is required, submit an unpreserved sample. Please see the Safety Data S...

Sodium Hydroxide is used as a preservative in containers for the following analyses: Cyanide Hexavalent Chromium (aka. CrVI, Chrome 6, Cr6) Please ...

Hydrochloric Acid is used as a preservative in container for the following analyses: Mercury Ferric/Ferrous Iron Please see the Safety Data Sheet a...

Sulfuric (Sulphuric) Acid is used as a preservative for a number of different analyses, including: Ammonia COD DOC/TOC Phosphorus - Total Phenols 4A...

Sodium Bisulphate is used for preserving a number of Organic target parameters.  Primarily to prevent further bio-degradation. Containers preserved with...

Methanol is the preservative of choice when stabilizing soil plug samples taken for VOCs or BTEX/F1 Petroleum Hydrocarbons. Please see the Safety Data S...

5N Sodium Hydroxide is used as a preservative in containers for the following analyses: Sulphide in water. Please see the Safety Data Sheet attached...