AS 2724.5-1987

Ambient air - Particulate matter - Determination of impinged matter expressed as directional dirtiness, background dirtiness and/or area dirtiness (directional dust gauge method) Standards Australia / 01-Jan-1987

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Sets out a method for the collection by directional dust gauge and measuring by obscuration, of particulate matter in ambient air which impinges on vertical surfaces. Provision is made to distinguish variation of dirtiness with wind direction.