1.1 该测试方法确定光伏器件参数相对于测试参数的线性度，例如，短路电流相对于辐照度。 1.2 本测试方法确定的线性仅适用于测试时，并不意味着过去或未来的性能水平。 1.3 本试验方法仅适用于非集中式地面光伏设备。 1.4 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。 1.5 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、健康和环境实践，并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 本试验方法用于评估其他ASTM试验方法对光伏装置的适用性。 5.2 本试验方法中描述的程序旨在确定光伏装置的短路电流和入射到装置上的辐照度水平之间的线性度。该测试方法可用于其他设备参数，前提是功能通过原点。

1.1 This test method determines the degree of linearity of a photovoltaic device parameter with respect to a test parameter, for example, short-circuit current with respect to irradiance. 1.2 The linearity determined by this test method applies only at the time of testing, and implies no past or future performance level. 1.3 This test method applies only to non-concentrator terrestrial photovoltaic devices. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method is used to evaluate the applicability of other ASTM test methods to a photovoltaic device. 5.2 The procedure described in this test method is intended to be used to determine the degree of linearity between the short-circuit current of a photovoltaic device and the irradiance level incident on the device. This test method can be used for other device parameters, provided the function passes through the origin.