S 3580.9.9:2017 Australian Standard？ Methods for sampling and analysis of ambient w air in Method 9.9: Determination of suspended particulate matter-PMio low volume sampler- Gravimetric method PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee EV-007, Methods for Examination of Air, to supersede AS/NZS 3580.9.9:2006. After consultation with stakeholders in both countries, Standards Australia and Standards New Zealand decided to develop this Standard