The is a critical tool for scuba divers to manage nitrogen absorption and avoid decompression sickness (DCS) . Unlike the Imperial version, which uses feet, the metric table is designed for depths measured in meters .
Step-by-Step Guide: Planning a Repetitive Dive Using the Metric Table
Remember: Dive tables are life-support equipment. Use the metric system properly—calculate your meters and minutes carefully—and always plan your dive, then dive your plan.
| Depth (meters) | NDL (minutes) | | :--- | :--- | | 12 m | 147 min | | 14 m | 98 min | | 16 m | 72 min | | 18 m | 56 min | | 20 m | 45 min | | 22 m | 37 min | | 24 m | 29 min | | 26 m | 25 min | | 28 m | 22 min | | 30 m | 20 min | | 32 m | 15 min | | 34 m | 13 min | | 36 m | 11 min | | 38 m | 9 min | | 40 m | 8 min |
This table lists depths down the left column (from 10 meters to 42 meters) and dive times across the rows. Padi Rdp Table Metric Pdf
The metric version of the RDP offers a few subtle differences from the imperial version:
It is a analog system that works without batteries.
The actual number of minutes you spend underwater on your repetitive dive. Total Dive Time (TDT): The sum of RNT and ADT (
The maximum time you can stay at a depth without needing a decompression stop. The is a critical tool for scuba divers
Your new post-surface interval status is Pressure Group D . Step 3: Find Limits for Dive 2 (Table 3) Locate Table 3 (Repetitive Dive Timetable).
However, I can explain how to find the official metric version and how to use the table, or provide a text-based representation of the standard Recreational Dive Limits.
This is the most common question. holds strict copyright over the RDP.
| Section | Use | |---------|-----| | | Maximum bottom time for a given depth (no decompression) | | Table 2 – Pressure Groups | Letter group (A–Z) after a dive, based on depth & time | | Table 3 – Residual Nitrogen Time (RNT) | Extra “virtual” bottom time due to previous dive | | Table 4 – Repetitive Dive Table | Combines RNT + planned bottom time → final pressure group | Use the metric system properly—calculate your meters and
Carrying a physical plastic slate is standard, but having a on your smartphone or tablet is highly beneficial for: Pre-Trip Planning: Checking limits at home before you pack.
The PADI Recreational Dive Planner (RDP) Metric Table, developed by DSAT, is a tool for managing nitrogen absorption during no-stop dives up to 40 meters, utilizing pressure groups from A to Z to calculate residual nitrogen. The system consists of three tables for managing, calculating, and planning repetitive dives, requiring divers to always round up depth and time to the next greater value. View the PADI Metric RDP PDF provided by A1 Scuba Diving.
Go to . Locate your new Pressure Group D along the side/top. Locate your planned depth for Dive 2, which is . Find the intersection of Group D and .