"Still off-gassing?" asked Sarah, the divemaster, leaning over his shoulder.
Calculates how much nitrogen leaves your body while you relax on the boat or shore.
Standard 3rd Generation (as taught in PADI Open Water Diver course)
specifically for recreational, no-stop diving. Unlike traditional tables, it is designed to maximize dive time for those making multiple dives in a single day. Key Components of the Table The RDP is comprised of three distinct but linked tables: Table 1 (Front): Used to determine your Pressure Group (PG) after a dive based on depth and time. Table 2 (Back): Used to calculate your new Pressure Group after a Surface Interval (SI) Table 3 (Back): Used for repetitive dive planning to find Residual Nitrogen Time (RNT) Adjusted No Decompression Limits (ANDL) Standard Rules for Metric Planning
They followed the coordinates down a channel that had gone from concrete to mud. At the RDP Hollow, the world smelled of silt and old rain. A makeshift pipe with a rag tied around one joint leaked slow and steady. The sensor—half-sunken in a bed of algae—blipped intermittently on a screen the size of a hand. Lela remembered that number: RDP-M. The device recorded pulses of water pressure and soil moisture; the PDF did not lie. Padi Rdp Table Metric Pdf
Read down the column to find your actual dive time. If your exact time isn't there, round up to the next highest number. For our scenario, find .
For any dive after the first, you must account for residual nitrogen:
This comprehensive guide explores how the metric RDP table works, how to read it, and how to download and utilize the PDF version for your dive preparation. What is the PADI RDP Table Metric PDF?
The is an invaluable resource for international scuba divers. Whether you are studying for your Open Water certification, preparing for a dive trip, or maintaining a backup for your digital dive computer, mastering the metric tables is a hallmark of a responsible, self-reliant diver. Download a certified copy, practice your planning scenarios, and always dive well within your limits. To help tailor more diving resources for you, let me know: "Still off-gassing
⚠️ If you find a “free PADI RDP table PDF” on a public website, verify it matches the official PADI 3rd generation layout (copyright 2014 or later). Older versions use different pressure groups.
The table is a guide; always stay well within its limits for safety.
Digital, printable versions of the planner allow you to study anytime. You can download official and educational resources directly from PADI or certified training hubs:
Locate on the diagonal entry point of Table 2. Follow the row horizontally until you find a time block that contains 1:15 (1 hour and 15 minutes). The block 1:00 to 1:19 fits perfectly. Follow that column straight down to the bottom row. Result: Your new Pressure Group is D . Dive 2 Profile (Repetitive Dive) Depth: 15 meters Target Actual Bottom Time (ABT): 25 minutes Step 3: Find RNT and ANDL (Table 3) Unlike traditional tables, it is designed to maximize
It is strongly recommended to make each successive repetitive dive shallower than the one before it.
You can find the PADI RDP Table in metric units in PDF format through various online resources, such as:
If you come within three pressure groups of a no-decompression limit (e.g., pressure group H with a limit that goes to K), PADI's tables require a safety stop. This is also required for any dive to 30 meters (100 feet) or deeper, regardless of time.
| Error | Correction | |-------|-------------| | Using max depth instead of average | Use deepest depth reached. | | Forgetting RNT on repetitive dives | Always check Table 3. | | Misreading pressure group after SI | Recalculate carefully. | | Using imperial values | Keep units metric (m, min). |
It accounts for "off-gassing." As you sit on the boat or shore, your body releases nitrogen.