BS EN 2484:1989 - Specification for microfilming of drawings. Aperture card for 35 mm microfilm
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BS EN 2484:1989 is a British Standard titled "Specification for microfilming of drawings. Aperture card for 35 mm microfilm." This standard provides specifications for the microfilming of technical drawings using aperture cards designed for 35 mm microfilm.
Technical drawings are often critical documents in various industries, including engineering, architecture, and manufacturing. Microfilming these drawings allows for compact storage, preservation, and easy retrieval of valuable technical information.
An aperture card is a type of microform that contains a small aperture or window through which the image of a drawing can be viewed. The aperture card typically holds the microfilm containing the image of the drawing, along with indexing information and other metadata.
BS EN 2484:1989 likely covers various aspects of microfilming technical drawings using aperture cards for 35 mm microfilm, including:
Aperture Card Specifications: Specifications for the design, dimensions, and materials of the aperture cards used for holding the microfilm.
Microfilm Specifications: Specifications for the type, size, and characteristics of the microfilm used for capturing the images of the drawings.
Image Quality: Requirements for image resolution, contrast, and legibility to ensure that the microfilmed drawings are clear and readable.
Indexing and Retrieval: Recommendations for indexing or cataloging the microfilmed drawings on aperture cards to facilitate retrieval and access.
Storage and Handling: Recommendations for the storage, handling, and preservation of aperture cards and microfilm to ensure their long-term durability and accessibility.
Quality Control: Procedures for quality control and assurance to verify that microfilmed drawings meet the specified requirements.
