ISO 9940:2015定义了制造商用于鉴定飞机液压传动用耐火磷酸酯基液体的技术要求、鉴定和质量控制条件（产品鉴定、批量控制、验收）试验和测量方法。

ISO 9940:2015 defines technical requirements, qualification and quality control conditions (product qualification, batch control, acceptance) test and measurement methods to be used by manufacturers for qualification of fire-resistant phosphate-ester-base fluids used for hydraulic transmissions in aircrafts.