BSI - BS 3693-1
Recommendations for the design of scales and indexes. Instruments of bold presentation and for rapid reading
|Publication Date:||17 February 1964|
|ICS Code (Metrology and measurement in general):||17.020|
Quantitative instruments for reading to resolution of 1 to 2 per cent of scale range. Single scale instruments having dials with full circle, part circle or straight scales; instruments with trans-illuminated dials and moving-scale fixed-index instruments not included. Relationship of scale dimensions, including marking and associated figuring, to maximum reading distance; preferred scale ranges.