• JIS B2005-2-1-2005 Industrial-process control valves-Part 2-1：Flow capacity-Sizing equations for fluid flow under installed conditions.pdf
• JIS B2292-1-2005 Hydraulic fluid power-Dimensions and identification code for mounting flanges and shaft ends of displacement pumps and motors-Part 1：Inch series shown in metric units.pdf
• JIS B2292-2-2004 Hydraulic fluid power-Dimensions and identification code for mounting flanges and shaft ends of displacement pumps and motors-Part 2：Metric series.pdf