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sklademVydáno: 2020-08-24
BS ISO 1409:2020
Plastics/rubber. Polymer dispersions and rubber latices (natural and synthetic). Determination of surface tension
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| Označení normy: | BS ISO 1409:2020 |
| Počet stran: | 20 |
| Vydáno: | 2020-08-24 |
| ISBN: | 978 0 539 02167 7 |
| Status: | Standard |
DESCRIPTION
BS ISO 1409:2020
This standard BS ISO 1409:2020 Plastics/rubber. Polymer dispersions and rubber latices (natural and synthetic). Determination of surface tension is classified in these ICS categories:
- 83.080.01 Plastics in general
- 83.040.10 Latex and raw rubber
This document specifies two methods for the determination of the surface tension of polymer dispersions and rubber latices (natural and synthetic).
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Method A is the ring method (Du Noüy ring method).
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Method B is the plate method (Wilhelmy plate method).
Method A is suitable valid for polymer dispersions and rubber latices with a viscosity less than 200 mPa·s.
Method B is not suitable for polymer dispersions and rubber latices containing cationic surfactants.
Methods A and B are also suitable for prevulcanized latices and compounded material.
In case of dispute, the preferred method is method A (the ring method).