ESR's specialised Environmental Radiochemistry Laboratory has been measuring naturally occurring and man-made radionuclides for over 50 years. Quality assurance is vital to our laboratory work; we are accredited to
- International standard ISO/ IEC 17025 by International Accreditation New Zealand (IANZ)
- Ministry of Primary Industries Recognised Laboratory Program (MPI RLP)
- Certified Laboratory within the International Monitoring System of the Comprehensive nuclear-Test-Ban Treaty organisation (CTBTO)
The scope of accreditation includes test methods based on alpha spectrometry, gamma spectrometry and low-background liquid scintillation counting. We ensure our quality by regular participation in proficiency test exercises organised by the Comprehensive Nuclear-Test-Ban Treaty Organisation (CTBTO), the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA), the US Department of Energy (DoE), and the International Atomic Energy Agency (IAEA).
Low-level radioactivity measurements
ESR offers a wide range of measurement services to determine and quantify the presence of radioactivity. Our team of radiation specialists can test across a large range of sample types, including but not limited to: food, water, soil, sediment, mining ore and products, biota and air samples.
Many of our standard testing methods are included in our scope of accreditation to ISO/IEC 17025 but we can adjust our testing regime to suit your measurement requirements.
Applications for test results include testing of drinking waters to show radiological compliance with the New Zealand Drinking Water Standards or overseas standards, soil erosion measurements, sediment analyses for dating, and food certification for export.
Find out more in this brochure [PDF, 413 KB]
Food export certification
ESR tests for radioactivity in foodstuffs for the export market and monitors imported food products. Certificates are issued for goods that are of 100% New Zealand origin without testing a sample for radioactivity content. For any goods containing imported components a sample must be tested for radioactivity content before a certificate can be issued. Some countries may also require testing of a 100% New Zealand product.
Complete this form to obtain a certificate [PDF, 504 KB]
Drinking water
ESR tests for radiological compliance with the Drinking Water Standard for New Zealand (DWSNZ) and overseas drinking water standards. We can test drinking waters for:ESR tests for radiological compliance with the Drinking Water Standard for New Zealand (DWSNZ) and overseas drinking water standards. We can test drinking waters for:
- Gross Alpha and Gross Beta activity concentrations
- Radon-222
For more information:
- Contact ESR's National Centre for Radiation Science: +64 3 351 6019 or email ncrs.environmental@esr.cri.nz
Radiation training and consultancy
Find out about the training we offer to ensure radiation safety
ESR in the Pacific region
Read about our radiation monitoring and other work in the Pacific