have tests to measure CH4 and N2O concentrations (and if relevant for waste combustion participants, CO2 concentrations) by volume in the gas stream from the stacks carried out in accordance with one of the following standards by a person or laboratory that is accredited as complying with ISO 17025:2005 by International Accreditation New Zealand, an overseas accreditation agency with whom International Accreditation New Zealand has a mutual recognition agreement, or an overseas accreditation agency recognised under New Zealand’s mutual recognition arrangements to carry out the tests:
(iv)
VDI 2469–1 (measurement of nitrous oxide):
(v)
ASTM D6348–03 (determination of gaseous compounds); and