3. SITE INVESTIGATION

3.4 Sample Size and Handling Procedures

Sample collection tools should be thoroughly steam cleaned before and between taking samples. Before sampling commences, the laboratory should be consulted on the particular sample size and preservation procedures that are necessary for each chemical analysis. The sample containers should be laboratory cleaned, sealable, water-tight, made of glass or other suitable materials with aluminium or teflon-lined lids, so that the container surface will not react with the sample or adsorb contaminants. The containers should be marked with the sampling point codes and the depths at which the samples were taken. If the contents are hazardous, this should be clearly marked on the container and precautions taken during transport. Samples should be stored between 0 - 4°C but never frozen.