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This proficiency test is part of the National Measurement Institute's (NMI's) 2019 proficiency testing program for inorganic studies.

We will dispatch the samples in August 2019. 

We are accredited for compliance with ISO/IEC 17043.

The values given are indicative, based on the range of materials used in previous rounds. We will readjust these ranges in the dispatch letter.

Sample 1: 30 g sediment

Acid extractable elements and their approximate concentration range (mg/kg):

  • As: 2–50
  • Cd: 0.5–40
  • Cr: 25–5
  • Cu: 10–200
  • Hg: 0.2–20
  • Mn: 50–75
  • Mo: 1–75
  • Ni: 1–75
  • Pb: 25–75
  • Sb: 1–75
  • Se: 2–50
  • Tl: 0.5–40
  • V: 10–3
  • Zn: 10–2

Sample 2: 30 g sediment 

Acid extractable elements and their approximate concentration range (mg/kg):

  • Ag: 2–40
  • Al: 500–15 000
  • B: 10–200
  • Ba: 10–200
  • Be: 0.2–4
  • Bi: 1–75
  • Co: 2–40
  • Cs: 0.2–4
  • La: 2–40
  • Li: 2–40
  • Rb: 2–40
  • Sn: 0.5–10
  • Th: 0.5–10
  • U: 0.5–10

Sample 3: 100 g soil

Analytes and their approximate concentration range (mg/kg):

  • Ca (acid extractable): 2500–75,000
  • Fe (acid extractable): 2500–75,000
  • K (acid extractable): 750–15,000
  • Mg (acid extractable): 750–15,000
  • Na (acid extractable): 750–15,000
  • P (acid extractable): 500–15,000
  • S (acid extractable): 500–15,000
  • Sr (acid extractable): 20–1000
  • Water Soluble Fluoride (F-) 1:5 soil/water extract: 0.5–40
  • Water Soluble Chloride (Cl-) 1:5 soil/water extract: 25–75
  • Water Soluble Bromide (Br-) 1:5 soil/water extract: 0.5–40
  • Water Soluble Iodide (I-) 1:5 soil/water extract: 0.5–40
  • Water Soluble Sulphate (SO42-) 1:5 soil/water extract: 25–750
  • Water Soluble Orthophosphate-P; (PO43--P) 1:5 soil/water extract: 0.5–40
  • pH of 1:5 soil/water suspension: to be advised (TBA)
  • EC of 1:5 soil/water extract: TBA
  • Kjeldahl nitrogen, total (TKN): TBA
  • 2M KCl Extractable Ammonium-N and Exctractable Nitrate-N: TBA

Cost

We advertise costs closer to the study date. 

How to apply

1.    Read the:

2.    Email proficiency@measurement.gov.au with your:

  • contact name
  • phone
  • postal address
  • delivery address
  • organisation
  • ABN

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Contact us

Let us know if you would like us to include any special matrix or analyte in our proficiency testing schedule.

Last updated: 24 June 2019

Content ID: 64530