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Status : Active
Standard Type : Main
Document No : ISO 20462-3:2012
Document Year : 2012
Pages : 26
Edition : 2
Section Volume : Photography (ISO/TC 42.)
the nature of a quality ruler;
hardcopy and softcopy implementations of quality rulers;
how quality rulers may be generated or obtained; and
the standard quality scale (SQS), a fixed numerical scale that may be measured using quality rulers.