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BS ISO 4645:2022

BS ISO 4645:2022

$102.76

Rubber and rubber products — Identification of antidegradants — Thin layer chromatographic methods

Published By Publication Date Number of Pages
BSI 2022 22
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PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
9 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
10 5 Reagents
5.4 Solvents
5.4.1 Propanol.
5.4.4 Toluene.
5.4.5 Ethyl acetate.
5.4.6 n-Hexane.
5.4.7 n-Heptane.
5.4.8 Cyclohexane.
5.4.9 Diethylamine.
11 5.4.11 Ethanol.
5.4.12 Acetone.
5.5 Developing solvents:
5.5.1 For method A:
5.5.2 For method B:
5.6 Colour development and spray reagents
12 5.6.3 Special for colour development of phenols(optional)
6 Apparatus
13 6.9 Rotary vacuum evaporator (optional).
6.10 Short liquid-solid chromatographic column(optional).
6.11 Spray apparatus.
6.13 Ultrasonic extraction apparatus.
7 Preparation of developing tank and plates
7.1 Preparation of developing tank
7.2 Preparation of plates
14 7.3 Preparation of pre-coated plates
8 Preparation of test portion
9 Plate spotting
9.1 General
9.2 Quantity of solution to apply
9.3 Spotting technique
15 10 Plate development
10.1 Method A
10.2 Method B
11 Colour development on the plate
12 Expression of results
12.1 Method A
12.1.1 For amine type antidegradants
16 12.1.2 For phenolic type antidegradants
12.2 Method B
12.3 Confirmation tests
13 Standard chromatograms
17 14 Test report
18 Annex A (informative) Preliminary spot tests
20 Annex B (informative) Example procedure when oil is present

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BS ISO 4645:2022
$102.76