BS EN ISO 8980-3. Ophthalmic optics. Uncut finished spectacle lenses. Part 3. Transmittance specifications and test methods (23rd February 2021)

• Record Type: Book
• Authors: British Standards Institution,
• Publisher Details: London : British Standards Institution
• Publication Date: 2021
• Extent: 1 online resource (40 pages)
• Subjects: 602.1841; Luminous intensity; Attenuation; Transmittance; Optical properties of materials; Wave properties and phenomena; Photochromic materials; Ophthalmology; Ophthalmic equipment; Spectra; Spectacle lenses; Spectacles (eyeglasses); Ultraviolet radiation; Polarization (wave physics)
• Languages: English
• ISSNs: 3037-8392
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.