Specification for visual densities of diazo and vesicular second-generation microforms. (28th August 1987)

• Record Type: Book
• Authors: British Standards Institution,
• Publisher Details: London : British Standards Institution
• Publication Date: 1987
• Extent: 1 online resource (8 pages)
• Subjects: 602.1841; Testing conditions; Duplicating; Microphotography; Computer output on microfilm; Aperture cards; Microfilm; Transmittance; Microforms; Optical properties of materials; Microfiche
• Languages: English
• Related ISBNs: 0580161234
• ISSNs: 0017-1742
• 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.