OAR 166-025-0010

In addition to the definitions contained in OAR 166-005-0010 (Definitions for Divisions 5 through 475), 166-017-0011 and 166-020-0007 (Definitions), the following definitions apply to this division:


“AIIM” refers to the Association for Information and Image Management.


“ANSI” refers to the American National Standards Institute.


“Aperture card” means a card with a rectangular opening into which microfilm may be inserted.


“Certification (Certificate of Legality)”means the confirmation that images recorded on microfilm are accurate, complete, and unaltered reproductions of the original records. It is sometimes referred to as a “Camera Operator’s Certificate.”


Computer Output Microfilm (COM) Computer Output Microfilm is a process for copying data from electronic media on computers onto microfilm or microfiche using a high-speed recorder which transfers machine-readable digital data onto human-readable microfilm/fiche using laser technology and a processor, which develops the microfilm after it is exposed to the light source. COM is most often used for large reports that do not need to be edited or manipulated.


“Density” means the light-absorbing or light-reflecting characteristics of a photographic medium.


“Generation” means one of the successive duplicates of a photographic master. The camera original is the first-generation film. A duplicate made from the master is a second-generation copy; a duplicate made from the second-generation copy is third-generation, and so on.


“Hybrid system” means a system that combines a micrographic/microfilm analog system with a electronic, digital technology)


“Image” means any representation of a document or data produced by radiant energy.


“Jacket” means a transparent plastic carrier with channels into which film may be inserted.


“Light box” or “light table” means a back-lit translucent surface used for film inspection.


“Loupe (lupe)” means a small, hand-held optical magnifying device used in conjunction with a light box for the inspection of microfilm.


“Methylene blue test” is a test used to measure the amount of residual thiosulphate ion (hypo) remaining on the film following washing.


“Microfiche” is a piece of film with images arranged in a grid pattern. Computer- Output-Microfilm is usually produced in this format.


“Planetary camera” is a type of microfilm camera that photographs a document as it lies stationary as it is being photographed. The document lies on a plane surface and the camera itself is suspended above the document.


“Processing” means the steps necessary to render a latent image visible, usable and permanent (fixed). These steps are development, fixing, washing and drying.


“Reduction ratio” is the relationship between the dimensions of the original document and the dimensions of the microimage of that document.


“Resolution” is the ability of microfilm or a photographic system to record fine detail.


“Retakes” means refilming of documents.


“Roll microfilm” means film that is wound on a reel, spool or core.


“Rotary camera” is a type of microfilm camera that photographs the document as it is being moved by some sort of a transport mechanism. The document transport mechanism is connected to a film transport mechanism, and the film also moves during exposure.


“Security copy” means a silver duplicate or first-generation microfilm which is stored under strictly controlled environmental conditions and used solely as a back-up or duplication master.


“Security Copy Depository” means the section of the Archives Division which offers storage of security microfilm.


“Source document microfilming” means the conversion of paper records to microfilm. It is differentiated from Computer Output Microfilm, which converts digitally encoded data to microfilm.


“Splice” means the joining of two pieces of film so that they function as one piece.


“Target, Informational” is a chart or document which is photographed in order to assist in identifying the content of the microfilm.


“Target, Technical” is an aid to technical control of the photographic system which is photographed on the film preceding or following the body of documents.


“Unitized microfilm” means film that is formatted in discreet units of information, e.g. microfiche, jackets, or aperture cards.


“Working copy” is a copy of microfilm which is distributed for end user use and not for security purposes.
Last Updated

Jun. 8, 2021

Rule 166-025-0010’s source at or​.us