Particle-size distribution
Sieve analysis assesses the distribution of coarser particle sizes. Hydrometer analysis may be used where the requested assessment includes finer fractions.
Sieve and hydrometer analysisSOIL TESTING · BORONIA, MELBOURNE
Laboratory classification and index testing helps describe a soil’s particle-size, moisture and plasticity characteristics. Send your specification or test schedule so our Boronia team can confirm the appropriate tests and sample requirements.

CHARACTERISE THE MATERIAL
Classification testing can help identify the distribution of particle sizes and the behaviour of a soil as its moisture condition changes. The relevant combination of tests depends on the material and the purpose of the assessment.
Provide your project specification whenever possible. We will confirm the requested methods, reporting requirements and whether the activities fall within the laboratory’s NATA-accredited scope.
AVAILABLE TESTING
Sieve analysis assesses the distribution of coarser particle sizes. Hydrometer analysis may be used where the requested assessment includes finer fractions.
Sieve and hydrometer analysisLiquid limit and plastic limit results are used to calculate plasticity index and describe the consistency characteristics of fine-grained soil.
Liquid limit, plastic limit and plasticity indexMoisture content records the water present in the tested portion. Linear shrinkage measures dimensional change under the specified test conditions.
Moisture content and linear shrinkageParticle density, Emerson class number and percent dispersion may be requested to further characterise the material.
Confirm applicability with the laboratoryA CLEARER QUOTE
We will review the information and confirm testing, sample quantities, preparation, timing and deliverables before work begins.
Send a project enquiry ↗COMMON QUESTIONS
Use the tests listed in your project specification or test schedule. If the requirements are unclear, send the relevant documents and describe how the results will be used so the scope can be discussed.
Not necessarily. The required particle-size testing depends on the material and the project requirements. Confirm whether fine-particle analysis is required before testing begins.
Sample quantities depend on the number and combination of tests, particle size and material condition. Contact the laboratory before dispatch so the quantity and packaging can be confirmed.
Accreditation applies to specific activities. Tell us if accredited results are required so we can confirm the applicable scope. View the laboratory’s NATA listing ↗.