D1582-98 – Standard Test Method Technical Guide

🧪 Test Method Principle and Required Apparatus

ASTM D1582-98 provides a direct gravimetric method for determining the nonvolatile content (total solids) of liquid phenol, resorcinol, and melamine adhesives. The method is applicable to adhesives containing high-boiling and low-boiling volatile organic solvents, water, or both. A precisely weighed specimen is oven-dried under controlled conditions, cooled in a desiccator, and weighed to calculate the percentage of nonvolatile material remaining.

The standard specifies the following critical apparatus, selected based on the chemical and physical characteristics of the adhesive system being tested:

⚙️ Sample Preparation and Drying Procedure

Proper sampling is paramount for representative results. A composite sample should be taken from three or more separate containers chosen at random. Samples are stored in airtight containers filled to capacity to prevent premature drying or evaporation. For each test, three specimens must be prepared.

For the 70 °C Drying Temperature Without Hardener method, the user places approximately 10 g of fine, oven-dried quartz sand in an open Petri dish with a small glass stirring rod, recording the combined tare weight. Approximately 2 g of adhesive is then transferred by difference from a covered weighing bottle onto the sand. The dish, rod, sand, and adhesive are weighed to the nearest 1 mg before being placed in the oven.

© 2026 TNLab — This article is a technical interpretation for reference only. The original standard as published by ASTM International takes precedence.

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