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D5571-22 – Standard Test Method Technical Guide
ASTM D5571-22 specifies a standardized test method for determining the environmental stress crack resistance (ESCR) of plastic tight-head drums with a rated capacity not exceeding 60 gal (227 L). Serving as a crucial indicator of field performance, this method evaluates the combined effects of container design, resin properties, and manufacturing conditions. The test exposes drums to nonyl phenoxypoly (ethyleneoxy) ethanol under controlled physical and chemical stresses.
🔬 Scope and Significance
This test method provides a summation of the effects influencing the environmental stress crack resistance of plastic drums. It is intended to evaluate a drum’s resistance to failure when in the presence of both chemical reagents and physical loading. The standard outlines two primary procedures (see Table 1) and emphasizes that the values stated in inch-pound units are the standard (Section 1.6). As noted in Section 1.5, the standard does not address all stress cracking factors; users may agree on alternate parameters for specific procurement agreements.
⚠️ Critical Standardization Notes: According to Section 1.6, inch-pound units are regarded as the standard for this test method. All equipment calibration and official reporting must adhere to these units, as SI values are provided for informational purposes only. Users must also establish appropriate safety, health, and environmental practices prior to use (Section 1.7).
⚙️ Test Methods: Internal Pressure vs. Top-Load
The standard provides two procedures for applying stress to the drum at an elevated temperature using a nonyl phenoxypoly (ethyleneoxy) ethanol solution.
| 🟦 Procedure | ⚡ Stress Application | 📐 Control Parameters | 🧪 Test Reagent |
|---|---|---|---|
| Procedure A — Internal Pressure | Constant elevated internal pressure | Pressure and Temperature | Nonyl phenoxypoly (ethyleneoxy) ethanol |
| Procedure B — Top-Load | Constant compressive top-load weight | Weight and Temperature | Nonyl phenoxypoly (ethyleneoxy) ethanol |
© 2026 TNLab — This article is a technical interpretation for reference only. The original standard as published by ASTM International takes precedence.