D3224-02 – Standard Test Method Technical Guide

🔬 Scope and Significance of this Test Method

ASTM D3224-02 standardizes the determination of water solubility of auxiliary solvents (cosolvents) used with biocides like pentachlorophenol in wood preserving solutions. These solvents formulate high-concentration liquid concentrates for shipment or enhance the solvency of petroleum-based carriers.

Water solubility of auxiliary solvents is critical for preventing emulsions at the treating plant and avoiding biocide precipitation from the solution due to loss of solvency. The test method is referenced in Specification D3225 for Low-Boiling Hydrocarbon Solvents.

Referenced Document: ASTM D1193 (Specification for Reagent Water).

⚙️ Test Procedure and Critical Conditions

Apparatus: 100-mL graduated cylinder with glass stopper.

Reagents: Reagent water per D