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D1337-10 – Standard Test Method Technical Guide
🧪 Scope and Significance of D1337-10
ASTM D1337-10 (Reapproved 2021) defines the Standard Practice for Storage Life of Adhesives by Viscosity and Bond Strength. This practice establishes a laboratory method for measuring the storage life of an adhesive by evaluating changes in viscosity (Procedure A), adhesive bond strength (Procedure B), or a combination of both. The standard is intended to determine whether the storage life of an adhesive conforms to its minimum specified requirement by providing results before and after exposure to a set of standard simulated storage conditions. The values stated in SI units are regarded as the standard.
⚙️ Test Methodologies: Viscosity and Bond Strength
Procedure A—Viscosity Test: The apparatus utilizes a viscometer conforming to ISO 2555 or ASTM D1084, and a controlled-temperature chamber capable of maintaining the required standard conditioning atmospheres. The adhesive is stored in its original and unopened container (approximately 1 L or quart size). If supplied in larger containers, the size, type of closure, and material (glass, steel, or tin-coated steel) of the sample container must be agreed upon by the purchaser and manufacturer. The storage temperature is selected from the standard temperatures specified in Practice D618. If the effect of storage time is desired, the standard suggests that at least three quantities of the adhesive be stored under the prescribed conditions.
Procedure B—Bond Strength Test: This procedure evaluates storage life through the degradation of bond strength. It relies on standard test methods to measure the bond strength of the adhesive before and after storage. The specific requirements for the percentage of original property retained or the minimum allowable value are not defined in this practice; instead, they are found in the relevant material specification or established by agreement between the manufacturer and user.
📊 Referenced Standards and Key Storage Parameters
The practice references several key ASTM standards for mechanical testing and environmental conditioning. The following tables summarize the bond strength test methods and the critical storage parameters outlined in the standard.
| 🛠️ Standard | 📐 Title | 🎯 Application in Procedure B |
|---|---|---|
| D897 | Test Method for Tensile Properties of Adhesive Bonds | Evaluates tensile strength of general adhesive bonds. |
| D906 | Test Method for Strength Properties of Adhesives in Plywood Type Construction in Shear by Tension Loading | Determines shear strength for plywood and panel products. |
| D1002 | Test Method for Apparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Tension Loading | Standard method for testing metal-to-metal adhesive bonds. |
💡 Technical Insight: When conducting both Procedure A and B in tandem, identical storage conditions (temperature per D618 and time) must be applied to the viscosity and bond strength specimens. This ensures a valid correlation between the change in viscosity and the degradation of bond strength during the simulated aging period.
| 📦 Storage Parameter | ⚡ D1337-10 Requirements |
|---|---|
| Container | Original ~1 L (quart) container or agreed-upon sample container (glass, tin-coated steel, etc.). |
| Temperature | Standard temperature per D618 (e.g., 23 ± 2°C). |
| Duration | As specified in material spec or agreed upon between manufacturer and purchaser. |
| Time Study | Storage of at least 3 quantities is suggested for evaluating the time-dependency of storage life. |
© 2026 TNLab — This article is a technical interpretation for reference only. The original standard as published by ASTM International takes precedence.