TEST METHOD: SAMPLE COLLECTING, HANDLING & TRANSPORTING

Revised 26 April 2004 (added details on soil sample containers)

RISK ASSESSMENT

Assess Safety, Health, Quality and Environmental aspects of each specific step.

OVERVIEW

To ensure samples represent the soil, brine or waters they were collected from, all samples shall be handled as specified in this test method.

TASK SAFETY REQUIREMENTS

Safety boots are mandatory. Glasses and overalls or a laboratory coat shall be worn to protect against chemical splashes.

SAMPLE LOCATIONS AND TIMING

Waters: The choice of sampling sites is important when testing surface waters, because the samples must be representative of the site being tested. Sampling in creeks and dams should take place at a point where there is some depth obtainable, without the sampler causing disturbance to the sediment. It may be necessary to place a structure out into the water if the shallows are less than 50 cm deep. Always attempt to conduct sampling during relatively calm weather, so as to avoid sampling resuspended sediments. If samples are being taken over many days, they should ideally be taken at the same time of day, especially for parameters affected by photosynthesis, such as dissolved oxygen and pH. Record the time (in 24-hour clock format) on the sampling record sheet.

Soils: Choose typical soil for the site. Try to obtain dry or moist, rather than wet soil samples.

CONTAINERS FOR WATER SAMPLES

Place into wide mouthed screw top sample jars of the appropriate materials, or into 'whirl-pak' type bags.

Test
Sample Bottle
Wash
Storage & Transport
Turbidity
Polyethylene
Detergent then Dist H2O
Store at 1-4 C
Colour
Polyethylene
Detergent then Dist H2O
Store at 1-4 C. Test within 48 hours.
Major Ions
Polyethylene
Dist H20
Nutrients
Polyethylene
Dist H20
May be frozen, or test within 24 hours.
Suspended and Settleable Solids
Polyethylene
Detergent then Dist H20
Store at 1-4 C. Test within 24 hours.
Heavy Metals
Polyethylene
Acid wash then rinsed with Dist H2O
Store at 1-4 C
Pesticides
Amber Glass
Acid wash then rinsed with Dist H2O
Store at 1-4 C
Herbicides
Amber Glass
Acid wash then rinsed with Dist H2O
Store at 1-4 C
Bacteria
Sterile IDEXX jars
Do not wash. Fill to the mark only.
Transport at 4 C. Test within 6 hours for public health testing, within 24 hours for environmental samples.
Chlorophyll
Opaque Polyethylene
Dist H20. Fill to the shoulder only.
Transport at 4 C.

 

 

 

 

 

 

 

 

EQUIPMENT REQUIRED FOR TAKING SAMPLES

TAKING SAMPLES

DESPATCH OF SAMPLES

RECORDING

If the samples are sent to an outside laboratory, keep a copy of the chain of custody. It is normal for an outside laboratory to fax a copy of the chain of custody sheet on receipt of samples and to fax a copy of the results within two weeks.

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