GB/T 18522.5-2002 in English

《GB/T 18522.5-2002水文仪器通则 第5部分:工作条件影响及试验方法》由TC199（全国水文标准化技术委员会）归口，主管部门为水利部。
GB/T 18522的本部分规定了水文仪器因工作条件变化影响所可能引起附加误差的主要因素、试验内容及方法等。本部分适用于各种类型的水文仪器。若仪器的产品标准只考虑总误差而不考虑附加误差，则免做本部分规定的相关试验。若仪器为纯机械型产品，则可免做涉及电子测量的相关试验。

Scope

This part of GB/T 18522 specifies the main factors, test contents and methods of additional errors that may be caused by hydrological instruments due to changes or influences of working conditions. This section applies to various types of hydrological instruments (hereinafter referred to as "instruments"). If the product standard of the instrument only considers the total error and does not consider the additional error, the relevant tests specified in this part are exempted. If the instrument is a purely mechanical product, related tests involving electronic measurement may be exempted.