润滑油及添加剂中的钙、氯、铜、镁、磷、硫和锌含量的测定 波长色散X射线荧光光谱法
Standard test method for determination of calcium,chlorine,copper,magnesium,phosphorus,sulfur,and zinc in unused lubricating oils and additives by wavelength dispersive X-ray fluorescence spectrometry (mathematical correction procedure)