【国外标准】 Standard Guide for Reflected–Light Photomicrography

4.1 This guide is useful for the photomicrography and photomacrography of metals and other materials.4.2 The subsequent processing of the photographic materials is also treated.1.1 This guide outlines various methods which may be followed in the photography of metals and materials with the reflected-light microscope. Methods are included for preparation of prints and transparencies in black-and-white and in color, using both direct rapid and wet processes.1.2 Guidelines are suggested to yield photomicrographs of typical subjects and, to the extent possible, of atypical subjects as well. Information is included concerning techniques for the enhanced display of specific material features. Descriptive material is provided where necessary to clarify procedures. References are cited where detailed descriptions may be helpful.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use. Specific precautionary statements are given in X1.7.1.4 The sections appear in the following order:Referenced documents 2Terminology 3Significance and use 4Magnification 5Reproduction of photomicrographs 6Optical systems 7Illumination sources 8Illumination of specimens 9Focusing 10Filters for photomicrography 11Illumination techniques 12Instant-processing films 13Photographic materials 14Photographic exposure 15Photographic processing 16Keywords 17Suggestions for visual use of metallographic microscopes Appendix X1Guide for metallographic photomacrography Appendix X2Electronic photography Appendix X31.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.