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ČSN EN ISO 12058-1 (640348)
Plastics - Determination of viscosity using a falling-ball viscometer - Part 1: Inclined-tube method
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STANDARD published on 1.2.2019
The information about the standard:
Designation standards: ČSN EN ISO 12058-1
Classification mark: 640348
Catalog number: 506141
Publication date standards: 1.2.2019
SKU: NS-935628
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
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Annotation of standard text ČSN EN ISO 12058-1 (640348):
This document specifies the general principles of a method, using an inclined tube falling ball viscometer, for determining the viscosity of polymers and resins in the liquid emulsified or dispersed state. It is intended for application to liquids over a viscosity measurement range of 0,6 mPa˙s to 250 000 mPa˙s (temperature range -20 °C to +120 °C) for which the shear stress and shear rate are proportional, i.e. the viscosity is independent of the shear rate. This ideal behaviour is commonly known as Newtonian behaviour. If a liquid differs significantly from this behaviour, different results can be obtained with the different balls of a falling ball viscometer or from viscometers with different geometries, such as capillary and rotational viscometers
Preview of the standard ČSN EN ISO 12058-1 (640348)
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