ANSI/ASTM D7278-2006 分析仪抽样系统迟延时间预测的标准指南

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                   【英文标准名称】:     Standard Guide for Prediction of Analyzer Sample System Lag Times            【原文标准名称】:     分析仪抽样系统迟延时间预测的标准指南            【标准号】:     ANSI/ASTM D7278-2006            【标准状态】:     作废            【国别】:     美国            【发布日期】:     2006    【实施或试行日期】: 2006-10-31【发布单位】: 美国国家标准学会(US-ANSI)【起草单位】: ANSI【标准类型】: ()【标准水平】: ()【中文主题词】: 分析仪;预测;样品;时间;延时【英文主题词】: Analyzersrediction;Samples;Time;Time delay【摘要】: This guide covers the application of routine calculations to estimate sample system lag time, in seconds, for gas, liquid, and mixed phase systems.   This guide considers the sources of lag time from the process sample tap, tap conditioning, sample transport, pre-analysis conditioning and analysis.   Lag times are estimated based on a prediction of flow characteristics, turbulent, nonturbulent, or laminar, and the corresponding purge requirements.  Mixed phase systems prevent reliable representative sampling so system lag times should not be used to predict sample representation of the stream. 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.【中国标准分类号】: A55【国际标准分类号】: 17_220_01【页数】: 【正文语种】: 英语