Units

UNITS





Conversion to SI Units (Syst�me International d'Unit�s)
All numerical values in this information are based on SI units. Numbers shown in conventional units are converted from these values.

Rounding off
Converted values are rounded off to the same number of places as the SI unit value. For example, if the SI unit value is 17.2 and the value after conversion is 37.84, the converted value will be rounded off to 37.8.

Upper and lower limits
When the data indicates upper and lower limits, the converted values are rounded down if the SI unit value is an upper limit and rounded up if the SI unit value is a lower limit. Therefore, converted values for the same SI unit value may differ after conversion. For example, consider 2.7 kgf/cm2 in the following specifications:

^ 210 - 260 kPa (2.1 - 2.7 kgf/cm2, 30 - 38 psi)
^ 270 - 310 kPa (2.7 - 3.2 kgf/cm2, 39 - 45 psi)

The actual converted values for 2.7 kgf/cm2 are 264 kPa and 38.4 psi. In the top specification, 2.7 is used as an upper limit, so its converted values are rounded down to 260 and 38. In the bottom specification, 2.7 is used as a lower limit, so its converted values are rounded up to 270 and 39.