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BSI PD ISO/TR 20659-2:2024

$167.15

Rheological test methods. Fundamentals and interlaboratory comparisons – Determination of the time-dependent structural change (thixotropy)

Published By Publication Date Number of Pages
BSI 2024 44
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
4 Measuring technique for the determination of thixotropy
4.1 Conditions for the measuring technique
9 4.2 Flow curves, with evaluation of the hysteresis area (rotational test)
4.2.1 Specification of the measuring profile
11 4.2.2 Evaluation
13 4.3 Step test with recovery, as a rotational test with controlled shear rate
4.3.1 Specification of the measuring programme
14 4.3.2 Evaluation
15 4.4 Step test with recovery, as a rotational test with alternating controlled shear stress and shear rate
4.4.1 Specification of the measuring programme
16 4.4.2 Evaluation
4.5 Step test with recovery, as a combined oscillatory and rotational test with controlled shear strain and shear rate, respectively
4.5.1 Specification of the measuring programme
17 4.5.2 Evaluation
20 5 Comparative testing programme
5.1 Aim of the comparative testing programme
5.2 Performance of the tests
5.2.1 Preliminary test
21 5.2.2 Comparative testing programme
5.3 Evaluation
22 6 Result
6.1 General
23 6.2 Measurement of the Newtonian reference sample
6.2.1 Flow curve
6.3 Step test with specification of the shear rate in measuring segments 1 and 3
24 6.4 Step test with controlled shear stress in measuring segments 1 and 3
6.5 Step test as oscillatory test in measuring segments 1 and 3
7 Analysis
26 Annex A (informative) Details of the comparative testing programme
40 Annex B (informative) Explanatory notes
42 Bibliography
BSI PD ISO/TR 20659-2:2024
$167.15