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D2241-24 – Standard Test Method Technical Guide
The ASTM D2241-24 standard specifies requirements for poly(vinyl chloride) (PVC) pressure-rated pipe in the standard dimension ratio (SDR) series. It provides a comprehensive framework for materials, dimensions, and performance testing to ensure reliable service in pressurized water systems.
📜 Specification Overview and Materials
This specification covers PVC pipe made in standard thermoplastic pipe dimension ratios and pressure rated for water. Included are criteria for classifying PVC plastic pipe materials and a system of nomenclature. The products are intended for use with pressurized liquids chemically compatible with the piping materials. The values stated in inch-pound units are standard.
⚙️ Performance Testing Requirements
Test methods under this standard include continuous sustained pressure testing per D1598 and short-term hydraulic burst testing per D1599. Additionally, flattening and extrusion quality tests ensure consistent manufacturing. The following table summarizes key test parameters.
| ⚡ Test Type | 📐 Duration | 🔥 Standard Temperature | 🎯 Acceptance Criteria |
|---|---|---|---|
| Sustained Pressure | 1000 hours | 73.4°F (23°C) | No failure during test |
| Burst Pressure | Short-term (until failure) | 73.4°F (23°C) | Pressure must exceed minimum burst requirement |
📊 Dimensional Standards and Pressure Classifications
Pipe dimensions are based on standard dimension ratios (SDR), which determine pressure ratings. The sustained and burst pressure test requirements are calculated from stress values obtained from tests on pipe 4 inches and smaller, validated for larger diameters. The following table lists typical SDR values and corresponding pressure ratings.
| 🟦 Standard Dimension Ratio (SDR) | 📏 Pressure Rating (psi) |
|---|---|
| SDR 41 | 100 |
| SDR 32.5 | 125 |
| SDR 26 | 160 |
| SDR 21 | 200 |
| SDR 17 | 250 |
| SDR 13.5 | 315 |
⚠️ Pneumatic testing with compressed air or gases contains large amounts of stored energy and presents serious safety hazards. Consult with specific product manufacturers for their testing procedures prior to pneumatic testing.
💡 PVC pipe made to this specification is often belled for use as line pipe. For solvent cement bells, refer to Specification D2672; for elastomeric joints, refer to Specifications D3139 and D3212.
❓ Frequently Asked Questions
🔍 What is the primary scope of ASTM D2241-24?
The standard specifies requirements for PVC pressure-rated pipe in the SDR series, including materials, dimensions, and performance testing for pressurized water systems.
💡 What materials are specified in this standard?
The specification covers PVC plastic materials that meet specific criteria for classification and use in pressure pipe applications for chemically compatible liquids.
⚡ What are the main test methods required?
Key tests include sustained pressure testing per D1598, short-term burst pressure testing per D1599, as well as flattening and extrusion quality evaluations to ensure pipe integrity.
📌 How is pipe marking addressed in the standard?
The standard provides methods of marking to ensure traceability, including identification of the manufacturer, material designation, and pressure rating, along with other relevant information.