1.1本试验方法包括测定0.000至0.100 mg KOH/g范围内航空涡轮燃料中的酸度。 1.2以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 由于精炼过程中的酸处理或天然有机酸，航空涡轮燃料中可能存在一些酸。由于在精炼的各个阶段进行了许多检查测试，因此不太可能出现严重的酸污染。然而，可能存在微量酸，这是不可取的，因为燃料会腐蚀其接触的金属或损害航空涡轮燃料的水分离特性。 本试验方法旨在测量航空涡轮燃料中可能存在的酸度水平，不适用于确定严重的酸污染。

1.1 This test method covers the determination of the acidity in aviation turbine fuel in the range from 0.000 to 0.100 mg KOH/g. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== Some acids can be present in aviation turbine fuels due either to the acid treatment during the refining process or to naturally occurring organic acids. Significant acid contamination is not likely to be present because of the many check tests made during the various stages of refining. However, trace amounts of acid can be present and are undesirable because of the consequent tendencies of the fuel to corrode metals that it contacts or to impair the water separation characteristics of the aviation turbine fuel. This test method is designed to measure the levels of acidity that can be present in aviation turbine fuel and is not suitable for determining significant acid contamination.