ASTM-E2847 2011

$44.96

E2847-11 Standard Practice for Calibration and Accuracy Verification of Wideband Infrared Thermometers

Published By	Publication Date	Number of Pages
ASTM	2011	16

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Categories: 17.200.20 - Temperature-measuring instruments, ASTM

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Description

ASTM E2847-11

Historical Standard: Standard Practice for Calibration and Accuracy Verification of Wideband Infrared Thermometers

ASTM E2847

Scope

1.1 This guide 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 guide are referred to as infrared thermometers in this document.

1.3 The infrared thermometers covered in this guide 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 guide.

1.6 This guide 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 verification; background radiation; blackbody; calibration; cavity radiation source; distance to size ratio; emissivity; field-of-view; flat-plate radiation source; handheld thermometer; infrared; infrared thermometer; radiation thermometer; reflected radiation; size-of-source effect; spot size; temperature measurement; thermal imager; thermal radiation source; thermometry; transfer standard; uncertainty

ICS Code

ICS Number Code 17.200.20 (Temperature-measuring instruments)

DOI: 10.1520/E2847-11

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Practice Significance and Use Sources of Uncertainty Apparatus TABLE 1
3	FIG. 1
4	FIG. 2
5	Preparation of Apparatus Procedure FIG. 3
6	FIG. 4
7	Uncertainty Budget FIG. 5
8	FIG. 6
9	Report Recordkeeping Requirements Keywords
10	X1. SAMPLE UNCERTAINTY BUDGET X1.1 X2. UNCERTAINTY CALCULATION X2.1 General X2.2 Sakuma-Hattori Equation (Planckian Form) TABLE X1.1 TABLE X2.1
11	X2.3 Infrared Thermometer with a Fixed Emissivity Setting X2.4 Emissivity Uncertainty FIG. X2.1
12	X2.5 Reflected Temperature Uncertainty X2.6 Atmospheric Absorption Uncertainty FIG. X2.2
13	X3. DETECTOR TEMPERATURE DETERMINATION ( X3.1 X3.2 X3.3 X3.4 X3.5 X3.6 TABLE X2.2
14	X4. SAMPLE REPORT FOR AN INFRARED THERMOMETER FIG. X4.1
15	REFERENCES FIG. X4.1

Additional information

Standard Title	E2847-11 Standard Practice for Calibration and Accuracy Verification of Wideband Infrared Thermometers
Published Code	ASTM
Publication Date	2011
Pages Count	16
ICS Codes	17.200.20 - Temperature-measuring instruments