This sampling guide presents only general information for commonly requested parameters in water, soil, or sediments samples. It is not possible to specify detailed sampling and preservation methods for the collection of all types of samples.

The result of any test method is dependent on the condition on the sample on which it is performed. The primary objective of the sampling is to collect a portion of material that is small enough to be conveniently transported to and handled in the laboratory, while still being representative of the original material.

• Many laboratories provide routine sample containers, labels preservation chemicals and field filtration kits free of charge.
• The holding times listed are recommended maximum times that samples may be held between collection and extraction or analysis. Certain sample compositions may make the practical holding times shorter or longer
• A separate container is not required for each parameter requested. More than one parameter can be analysed from the same container if the recommended container type and preservation are the same.

• Appropriate precautions MUST be taken when using chemical preservatives. In general, avoid inhaling fumes and contact with skin, eyes and clothing.
• Contact Laboratory Quality Management Services P/L if more information is required.

• Fill bottles leaving enough room to add preservatives, if required, and allow for mixing, unless “NO HEADSPACE” is specified.
• For parameters where “NO HEADSPACE” is required, it is important to minimise air bubbles in the sample. Fill each container carefully until a meniscus forms above the lip. Tighten the lid down over the meniscus. If any significant bubbles are visible, the sample should be recollected using a fresh container.
• Sample preservation should be performed immediately upon collection. If preservation is not possible, keep samples cold (4°C) and deliver them to the analytical laboratory as soon as possible.
• If preservatives have already been added to the container (this will be identified on the label) DO NOT RINSE the containers prior to filling.

• Soil or sediment samples are not preserved but should be kept cold (4°C).
• Fill containers as full as possible and use the appropriate lid.

• Seal sample containers well.
• Label all sample containers with non-removable markings.
• Keep all samples cold (4°C) but avoid freezing unless otherwise instructed.
• Complete the laboratory sample submission or Chain of Custody forms with all required information.
• Pack samples carefully in an Esky to avoid sample breakage.
• Send samples to your laboratory as soon as possible after collection.