BS ISO 8478:2017 Optics and photonics. Camera lenses. Measurement of ISO spectral transmittance
Photographic equipment
Lenses
Still-picture cameras
Optical instruments
Lens apertures
Interchangeability
Testing conditions
Photographic lenses
Optical measurement
Optics
Camera lenses
Link: BS ISO 8478:2017 Optics and photonics. Camera lenses. Measurement of ISO spectral transmittance
Source: BSI Standards
IEC 60755:2017 General safety requirements for residual current operated protective devices
Link: IEC 60755:2017 General safety requirements for residual current operated protective devices
Source: BSI Standards
ISO 4259-1:2017 Petroleum and related products. Precision of measurement methods and results Determination of precision data in relation to methods of test
BS EN 50645:2017 Ecodesign requirements for small power transformers
Small-power transformers
Technical requirements
Reactors (electric)
Design
Signal transformers
Link: BS EN 50645:2017 Ecodesign requirements for small power transformers
Source: BSI Standards
