Environmental Standards for Biodegradable Hydraulic Fluids and Correlation of Laboratory and Field Performance

摘要

Biodegradable hydraulic fluids have been introduced relatively recently and, initially, acceptable environmental performance and technical performance were neither well specified or controlled. Over the past few years, many standards and Specifications have been written, especially in the area Of biodegradability and ecotoxicity. Technical Performance test requirements are emerging more Slowly, however, and there is still some doubt over Appropriate tests and limits for some performance Areas.