This table allows you to plan a second, third, or fourth dive by factoring in your current residual nitrogen.
Required if you dive to 30 meters or deeper, or if your dive ends in a gray box on the table.
The final number at the bottom of each column represents the No Decompression Limit (NDL) . This is the absolute maximum time you can spend at that depth without requiring mandatory decompression stops during ascent. Table 2: Surface Interval Credit Table Padi Rdp Table Metric Pdf
The PADI RDP Table Metric PDF is a foundational tool for learning and practicing dive planning in metric units. While modern dive computers have largely replaced tables for actual diving, understanding the RDP is essential for grasping the principles of decompression theory and for backup planning.
The maximum minutes allowed at that depth for a first dive. It is indicated by the blacked-out or shaded boxes at the end of each depth row. This table allows you to plan a second,
Always perform a 3-minute safety stop at 5 meters at the end of every dive, especially repetitive or deep dives.
Complete Guide to the PADI RDP Table Metric PDF: Download, Calculations, and Safety Rules This is the absolute maximum time you can
Follow the 18m row to the right until you find . (If your exact time isn't listed, always round up to the next highest number to be safe).
Many scuba training websites offer free reference copies of the metric chart. Ensure the chart clearly states "Recreational Dive Planner" and features the distinct red, blue, and black grid design.