Section 60 IAC 2-2-4 - LegibilityAuthority: IC 5-15-5.1-1; IC 5-15-5.1-5; IC 5-15-5.1-8; IC 5-15-5.1-20
Affected: IC 5-15-5.1
Sec. 4.
(a) Resolution in a microfilm system for documents shall be tested for resolution capability, upon installation, by use of a camera test chart provided in ANSI/AIIM MS23-1998. Micrographics systems used for agency records must meet the following standards:(1) A micrographic system for documents must produce a quality index level of not less than 5.0 for first-generation microfilm as measured according to ANSI/AIIM MS23-1998. In applying this ANSI standard, a lowercase letter "e" height of one and four-tenths (1.4) millimeters or less must be used.(2) All pattern groups on the camera test chart must be read. The smallest line pattern, which corresponds to the highest number, in which both horizontal and vertical lines are clearly discernible is the resolving power of that pattern group.(3) The film used in reading the camera test chart must be processed to the density standard in subsection (b).(b) Density in microfilm systems used for agency records must meet the following standards: (1) Background density in first-generation negative microfilm of documents must be maintained as nearly as practical in the range of 0.92 to 1.20. No density over 1.25 or under 0.87 is allowed.(2) If a density in first-generation negative microfilm of documents occurs in the ranges 0.87 to 0.91 or 1.21 to 1.25, the records custodian shall determine by visual inspection that all such images satisfactorily reproduce all required record information.(3) The density of microfilm in a clear area (base plus fog density or Dmin) must not be greater than 0.10.(c) Reduction ratio in microfilm systems for agency records must meet the following standards:(1) For microfilming of documents, a ratio of 25:1 or 24:1 or less is required.(2) A reduction ratio for microfilm of documents of greater than 25:1 may be used only if the micrographic system can maintain the required quality index at the higher reduction.(d) "Standard Recommended Practice-Production, Inspection, and Quality Assurance of First Generation, Silver Microforms of Documents", ANSI/AIIM MS23-1998 is hereby incorporated by reference. Copies of this publication may be obtained by writing to AIIM, 1100 Wayne Avenue, Suite 1100, Silver Spring, MD 20910.Oversight Committee on Public Records; 60 IAC 2-2-4; filed Feb 23, 1987, 11:30 a.m.: 10 IR 1360; errata, 10 IR 1884; filed Dec 19, 1988, 4:45 p.m.: 12 IR 1089; readopted filed Dec 2, 2001, 12:20 p.m.: 25 IR 1268; filed Mar 28, 2003, 9:38 a.m.: 26 IR 2605; readopted filed Sep 23, 2010, 2:08 p.m.: 20101020-IR-060100425RFAReadopted filed 11/21/2016, 1:21 p.m.: 20161221-IR-060160430RFAReadopted filed 11/22/2022, 8:33 a.m.: 20221221-IR-060220307RFA