After the conclusion of the test, r

After the conclusion of the test, remove the specimensfrom the machine and evaluate them in sequence relative to theseriousness of the cracking by comparison with a standardscale of cracked specimens of the same type.25.2 Make the comparison by visually judging the length,depth, and number of cracks.25.3 The standard comparison scale shall consist of elevenspecimens equally graded and numbered from 0 (showing nocracking) to 10 (completely cracked through).25.4 A guide for evaluating the specimens is given in Table1. Improved precision may be achieved by making observationswith a scale having 0.5 mm (0.020 in.) increments and alow powered magnifying glass.25.5 Record the final result as the average of the numbersobtained from all of the specimens.25.6 Calculate the number of cycles required for the firstsign of cracking and for the final result by multiplying theobserved time, expressed in minutes, by the rate of 5 Hz(300 cpm).25.7 Compare the test results only between specimens ofsimilar configuration, tested in the same manner under identicalconditions.25.8 The test results may be expressed as:25.8.1 A severity comparison of the various samples at adefinite number of flexing cycles,