National Measurement Institute

Matrix reference materials

We are a National Association of Testing Authorities (NATA) accredited reference material producer. We produce and sell matrix reference materials for organic and elemental analysis. Matrix reference materials are used for method validation and quality control.

Our reference materials have certified values for selected elements or organic compounds. These are determined through our high accuracy measurement techniques and assessments, including:

  • method precision
  • method trueness
  • homogeneity and stability
  • measurement uncertainty, per the guide to the expression of uncertainty in measurement (ISO-GUM).

We also produce aqueous ethanol solutions as Australian certified reference materials, in accordance with regulation 48 of the National Measurement Regulations 1999. These legally traceable standards are used for evidential breath alcohol analyser calibrations.

Our certified reference materials:

  • come with certificate of analysis and safety data sheets
  • are prepared in accordance with ISO 17034 General requirements for the competence of reference material producers.

Test materials produced for our proficiency testing programs may often be available for sale. These materials come with indicative values determined by participants’ results or in-house reference methods.

Find our proficiency testing services.

Reference materials certificates

Search by description, CAS or NMI reference
Description CAS registry number NMI reference Unit of issue in mg Domestic cost (A$ excl GST) International cost (A$) Certificate

Ethanol in Water

Ethanol 0.614, 1.23 and  4.91 g/kg (corresponding to calibrators to breath alcohol concentrations of 0.005, 0.1 and 0.4 g/210 L of expired air)

 n/a[1] Ethanol in Water 500 g Bottle 110 # , ,

 ** CURRENTLY NOT AVAILABLE **

Trace Elements in Nutritional Supplement

Cr 14.3 ± 0.8 mg/kg

 n/a[1] MX008 Not Available $ $

Eleven Trace Elements in Freeze-Dried Prawn (dry mass basis)

As 4.06 mg/kg

Co 0.0932 mg/kg

Cr 1.06 mg/kg

Cu 17.1 mg/kg

Fe 116 mg/kg

Hg 0.1483 mg/kg

Mn 5.55 mg/kg

Ni 0.515 mg/kg

Se 2.78 mg/kg

V 0.281 mg/kg

Zn 74.0 mg/kg

 n/a[1] MX009 See certificate 290 407

Nitrofuran Marker Residues in Freeze-Dried Prawn

3-amino-2-oxazolidinone 137.5 ± 8.5 ng/g

 n/a[1] MX012 See certificate 303 424

Nitrofuran Marker Residues in Freeze-Dried Prawn

3-amino-2-oxazolidinone 30.2 ± 1.8 ng/g

semicarbazide 70.3 ± 3.1 µg/g

 n/a[1] MX012 See certificate 303 424

Folic acid in Wheat Flour

folic acid 2.28 ± 0.16 mg/kg

 n/a[1] MX013 See certificate 242 339

Trace Elements in Sea Water

As 2.96 ± 0.26 µg/kg

Cd 1.318 ± 0.034 µg/kg

Co 2.864 ± 0.068 µg/kg

Cr 2.613 ± 0.075 µg/kg

Cu 2.90 ± 0.25 µg/kg

Fe 21.70 ± 0.32 µg/kg

Hg 0.433 ± 0.010 µg/kg

Mn 1.48 ± 0.16 µg/kg

Ni 3.66 ± 0.10 µg/kg

Pb 2.467 ± 0.065 µg/kg

Se 3.06 ± 0.26 µg/kg

V 4.76 ± 0.12 µg/kg

 n/a[1] MX014 See certificate 290 407

Hydrocarbon-Contaminated Soil

Equivalent Carbon Number >C10 – C16: 0.90 ± 0.15 g/kg

Equivalent Carbon Number >C16 – C34: 7.2 ± 1.1 g/kg

Equivalent Carbon Number >C34 – C40: 1.1 ± 0.2 g/kg

Total Recoverable Hydrocarbons >C16 – C40: 9.2 ± 1.4 g/kg

 n/a[1] MX015 See certificate 215 330

PFAS in Soil

 n/a[1] MX019 See certificate 264 370

Pesticides in Tomato Puree
Bifenthrin 0.289 ± 0.021 mg/kg
Buprofezin 0.182 ± 0.017 mg/kg
Chlorpyrifos 0.781 ± 0.035 mg/kg
Endosulfan sulfate 0.615 ± 0.052 mg/kg
Imidacloprid 0.351 ± 0.029 mg/kg
Pirimicarb 0.670 ± 0.052 mg/kg

 n/a[1] MX030 Please see certificate 215 330

1. Please note that there is no CAS registry number where n/a (not applicable) displays.

Goods and Services Tax for Australian customers

The prices quoted don’t include the Goods and Services Tax (GST). We will add GST— currently set at 10%—to our tax invoices and adjustment notes when required.

Delivery fee

Delivery and handling fees apply for all orders and vary with destination. We will provide the rates when you order.

To order

Contact us.

International partners

Our reference materials are available globally through our international partner, LGC Standards.

Download the catalogue

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