标准摘要
[中文适用范围]： 本文件描述了颗粒过滤器称重室的推荐做法，为与发动机或车辆颗粒物 (PM) 排放的重力过滤器称重相关的程序和过程提供指导。此推荐做法提供了构建和维护颗粒过滤器称重室或外壳的正确程序，以满足 EPA 40 CFR Part 1065 和 ISO 14065 的要求，以获得较低的测量不确定度。本推荐实践的内容涉及以下领域： a 颗粒过滤器称重室 b 微量天平要求 c 过滤器调节和处理要求 d 称重过程 e 设备校准和维护 [外文原描述]： This document describes particulate filter weigh-room recommended practices to provide guidance in the procedures and processes associated with gravimetric filter weighing of engine or vehicle particulate matter (PM) emissions. This recommended practice provides proper procedures to build and maintain a particulate filter weigh room or enclosure to meet the requirements of EPA's 40 CFR Part 1065 and ISO 14065 for obtaining low measurement uncertainty. The content of this recommended practice addresses the following areas:aParticulate Filter Weigh RoombMicrobalance RequirementscFilter Conditioning and Handling RequirementsdWeighing ProcesseEquipment Calibration and MaintenanceCross Reference:
英文名称Recommended Practice for Filter Weighing of Particulate Matter Emissions