Standard Test Method for Measurement of Comparative Legibility by Means of Polarizing Filter Instrumentation
|Standards number:||ASTM D7298-06R17|
|Keywords:||analyzer; label; legibility; legibility index; light level; polarizer; test;|
1.1 This test method provides an objective means to comparatively measure the ease of reading printed matter for use in package labeling.
1.2 This test method is not intended to quantify the legibility of a printed item against a standard but to compare its legibility against other items.
1.3 This test method uses human subjects to view printed matter mounted in a specialized instrument.
1.4 The user of this test method must be aware that results may differ from one age group of subjects to another.
1.5 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 limitations prior to use.
1.6 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.