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ASTM-E1860:2007 Edition(Redline)

ASTM-E1860:2007 Edition(Redline)

$23.40

E1860-07 Standard Test Method for Elapsed Time Calibration Thermal Analyzers (Redline)

Published By Publication Date Number of Pages
ASTM 2007 4
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Significance and Use

Most thermal analysis experiments are carried out under temperature ramp conditions where temperature is the independent parameter. Some experiments, however, are carried out under isothermal temperature conditions where the elapsed time to an event is measured as the independent parameter. Isothermal Kinetics (Test Methods E 2070), Thermal Stability (Test Method E 487), Oxidative Induction Time (OIT) (Test Methods D 3895, D 4565, D 5483, E 1858, and Specification D 3350 and Loss-on-Drying (Test Method E 1868) are common examples of these kinds of experiments.

Modern scientific instruments, including thermal analyzers, usually measure elapsed time with excellent precision and accuracy. In such cases, it may only be necessary to confirm the performance of the instrument by comparison to a suitable reference. Only rarely will it may be required to correct the calibration of an instrumentā€™elapsed time signal through the use of a calibration factor.

It is necessary to obtain elapsed time signal conformity only to 0.1 times the repeatability relative standard deviation (standard deviation divided by the mean value) expressed as a percent for the test method in which the thermal analyzer is to be used. For those test methods listed in Section 2 this conformity is 0.1 %.

1. Scope

1.1 This test method describes the calibration or performance confirmation of the elapsed-time signal from thermal analyzers.

1.2 SI units are the standard.

1.3 There is no ISO standard equivalent to this method.

1.4 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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D3350 Specification for Polyethylene Plastics Pipe and Fittings Materials D3895 Test Method for Oxidative-Induction Time of Polyolefins by Differential Scanning Calorimetry D4565 Test Methods for Physical and Environmental Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable

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