The best scale will be determined by taking into consideration, in particular, the two following contradictory tendencies: a scale with too wide steps involves a waste of materials and an increase in the cost of manufacture, whereas a too closely spaced scale leads to an increase in the cost of tooling and also in the value of stock inventories. In selecting a scale of numerical values, choose that series having the highest ratio consistent with the desiderata to be satisfied, in the order: R 5, R 10, etc.
Document identifier
ISO 17:1973
Title
Guide to the use of preferred numbers and of series of preferred numbers
ISO Category
TC 19: Preferred numbers - STANDBY
Publication date
1973-04-01
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