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Description of ASTM-E2847 2013ASTM E2847-13e1Historical Standard: Standard Test Method for Calibration and Accuracy Verification of Wideband Infrared ThermometersASTM E2847Scope 1.1 This test method covers electronic instruments intended for measurement of temperature by detecting the intensity of thermal radiation exchanged between the subject of measurement and the sensor. 1.2 The devices covered by this test method are referred to as infrared thermometers in this document. 1.3 The infrared thermometers covered in this test method are instruments that are intended to measure temperatures below 1000°C, measure thermal radiation over a wide bandwidth in the infrared region, and are direct-reading in temperature. 1.4 This guide covers best practice in calibrating infrared thermometers. It addresses concerns that will help the user perform more accurate calibrations. It also provides a structure for calculation of uncertainties and reporting of calibration results to include uncertainty. 1.5 Details on the design and construction of infrared thermometers are not covered in this test method. 1.6 This test method does not cover infrared thermometry above 1000°C. It does not address the use of narrowband infrared thermometers or infrared thermometers that do not indicate temperature directly. 1.7 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.8 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Keywords accuracy verifications; background radiations; blackbodies; calibrations; cavity radiation sources; distance to size ratios; emissivities; fields-of-view; flatplate radiation sources; handheld thermometers; infrared; infrared thermometers; radiation thermometers; reflected radiations; size-of-source effects; spot sizes; temperature measurements; thermal imagers; thermal radiation sources; thermometries; transfer standards; uncertainties ICS Code ICS Number Code 17.200.20 (Temperature-measuring instruments) DOI: 10.1520/E2847-13E01 This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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