ISO 12058-1:1997
Plastics - Determination of viscosity using a falling-ball viscometer - Part 1: Inclined-tube method
- Standard No.
- ISO 12058-1:1997
- Release Date
- 1997
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 12058-1:2018
- Latest
- ISO 12058-1:2018
- Scope
- This part of ISO 12058 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 ℃ to + 120 ℃) 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 may be obtained with the different balls of a falling-ball viscometer or from viscometers with different geometries, such as capillary and rotational viscometers.
ISO 12058-1:1997 history
- 2018 ISO 12058-1:2018 Plastics - Determination of viscosity using a falling-ball viscometer - Part 1: Inclined-tube method
- 1997 ISO 12058-1:1997 Plastics - Determination of viscosity using a falling-ball viscometer - Part 1: Inclined-tube method
