491. Specification for automatic electrical controls for household and similar use. General requirements Part 1, (15th September 1992) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (172 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
492. Harmonized system of quality assessment for electronic components. Semiconductor devices. Integrated circuits. Sectional specification for film integrated circuits and hybrid film integrated circuits: capability approval. (15th August 1992) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (60 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
493. Methods of testing refractory materials. Refractory and thermal properties. Determination of thermal conductivity (panel/calorimeter method) (method 1902-505) Part 5.5, (30th August 1991) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
494. Reference configuration for connectivity relations of private telecommunication network exchanges. (15th November 1992) 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) ↗
495. Measurement of fluid flow in closed conduits. Methods of evaluating the performance of electromagnetic flow-meters for liquids. (31st October 1991) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (28 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
496. Data exchange for meter reading, tariff and load control. Direct local data exchange. (15th December 1992) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (40 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
497. Specification for performance requirements for ballasts for discharge lamps (excluding tubular fluorescent lamps). (31st July 1991) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (50 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
498. Elements of electrical and optical connection. Test methods. Contact resistance. Low level Part B1, (15th December 1992) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
499. Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour terms. Terms particular to telecommunications and electronics. Oscillations, signals and related devices Part 3, (15th October 1992) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (238 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
500. Performance and testing of teleprotection equipment of power systems. Specification for narrow-band command systems Part 1, (29th November 1991) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (40 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗