Micrographics. First generation silver-gelatin microforms of source documents. Density specifications. (29th November 1991)

• Record Type: Book
• Authors: British Standards Institution,
• Publisher Details: London : British Standards Institution
• Publication Date: 1991
• Extent: 1 online resource (12 pages)
• Subjects: 602.1841; Sensitometry; Microphotography; Optical density; Silver; Microforms; Grades (quality); Testing conditions; Gelatin
• Languages: English
• Related ISBNs: 0580202615
• ISSNs: 0025-5772
• 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.