BS 3894-1:1965

Formula for conversion; conversion factors for obtaining equivalent values on different proportional and non-proportional gauge lengths; tables of actual conversions of values obtained on 4 √S₀ and 5.65 √S₀, 2 in, 4 in and 8 in gauge lengths to the equivalent on another gauge length; monogram charts to convert values on 4 √S₀ or 5.56 √S₀ to equivalent on 2 in, 4 in or 8 in gauge lengths.