521. Electricity metering equipment. Particular requirements. Static meters for reactive energy (classes 2 and 3) Part 23, (5th August 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (26 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
522. Electricity metering equipment. Particular requirements. Static meters for fundamental component reactive energy (classes 0, 5S, 1S, 1, 2 and 3) Part 24, (4th August 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (30 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
523. Electricity metering equipment. Particular requirements. Static meters for AC active energy (classes 0, 5, 1 and 2) Part 21, (4th August 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (26 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
524. BS EN 15502-2-1. Gas-fired central heating boilers. Part 2-1. Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW (5th August 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (110 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
525. High-voltage switchgear and controlgear. Alternating current circuit-breakers Part 100, (7th September 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (302 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
526. BS EN 12261. Gas meters. Turbine gas meters. (26th August 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (67 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
527. BS EN 30-1-2. Domestic cooking appliances burning gas. Safety. Part 1-2. Appliances having forced-convection ovens (9th September 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (26 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
528. BS EN IEC 60335-2-58 AMD AA. Household and similar electrical appliances. Safety. Part 2-58. Particular requirements for commercial electric dishwashing machines (3rd September 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (20 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
529. Ships and marine technology. Pilot ladder winch reels. (13th September 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
530. Secondary cells and batteries containing alkaline or other non-acid electrolytes. Safety requirements for portable sealed secondary cells, and for batteries made from them, for use in portable applications. Lithium systems Part 2, (21st September 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (54 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗