Due to the variability within a stockpile or windrow of material, the sample must be composed of a series of subsamples, which is then combined and reduced to obtain a representative sample.

Things to avoid when sampling

Temperature fluctuations: samples taken from active stockpiles can change rapidly because of the dynamics of microbial activity in composts.

Taking the sample

• Calculate the number of subsamples required and recommended size of subsamples relative to particle size
• Take subsamples using a spade or trowel, taking subsamples from random positions throughout the pile
• Arrange for the pile or windrow to be turned, screened or completely homogenised on the day that the sample is taken, breaking up and distributing any clumps
• For a pile that has not been turned or screened (homogenised), use a frontend loader to dig or back-blade halfway into the pile to expose a cross section. Take subsamples scattered over the width and height of cross-section
• Combine the samples and blend into a composite sample. The laboratory requires 500 grams of representative sample

Sending the sample to the laboratory

Deliver to:

Brisbane (drop off)
Mail
7 Smallwood Place
Murarrie QL 4172 

apal.receptionqld@eurofinsanz.com

Adelaide (laboratory)
Mail
PO BOX 155
Welland SA 5007
 
Courier
Unit 3, 11 Ridley St
Hindmarsh SA 5007

apal.info@eurofinsanz.com

Perth (drop off)
Courier
Unit 4, 158 Fransisco St
Belmont WA 6104

apal.perth@eurofinsanz.com

For any further information please contact Eurofins Agro Testing

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