141. Ambient air. Standard gravimetric measurement method for the determination of the PM10 or PM2, 5 mass concentration of suspended particulate matter. (10th August 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (64 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
142. Tracked Changes. Ambient air. Standard gravimetric measurement method for the determination of the PM10 or PM2, 5 mass concentration of suspended particulate matter. (5th September 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (154 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
143. BS EN 12037. Wood preservatives. Field test method for determining the relative protective effectiveness of a wood preservative exposed out of ground contact. Horizontal lap-joint method. (17th December 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (32 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗