121. Tracked Changes. Road vehicles. Spark-plugs and their cylinder head housings. Basic characteristics and dimensions. (10th October 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (83 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
122. Tracked Changes. Rotating electrical machines. Classification of types of construction, mounting arrangements and terminal box position (IM Code) Part 7, (1st February 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (92 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗