8. The requirements of this paragraph are that testing is carried out in accordance with the provisions relevant to emissions of PM and NOₓ in either BS EN 303-5:1999(1) or BS EN 303-5:2012(2), whichever standard is current at the time of testing.
The ISBN for the English language version of this standard is ISBN 0 580 32356 0. This standard was published by the British Standards Institution on 15th November 1999 and copies, including hard copies, can be obtained at www.bsigroup.com.
The ISBN for the English language version of this standard is ISBN 978 0 580 71785 7. This standard was published by the British Standards Institution on 31st August 2012 and copies, including hard copies, can be obtained at www.bsigroup.com.