ISO 2555:2018 PDF

Plastics — Resins in the liquid state or as emulsions or dispersions — Determination of apparent viscosity using a single cylinder type rotational viscometer method

Название (английский):

ISO 2555:2018

Plastics — Resins in the liquid state or as emulsions or dispersions — Determination of apparent viscosity using a single cylinder type rotational viscometer method

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 17
Дата публикации:: 16 мая 2018 г.
Издание:: ISO IS 2555 edition 3 version 1
ICS:: 83.080.01

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Описание (английский):

This document specifies a method of determining apparent viscosity of resins in a liquid state using a single cylinder type rotational viscometer. The method can be used for viscosity measurements in the range from 0,02 Pa ⋅ s to 60 000 Pa ⋅ s. This document is applicable to both Newtonian and non-Newtonian liquids and the measured apparent viscosity depends on the velocity gradient to which the liquids are subjected during the measurement.

Технические детали

Технический комитет: ISO/TC 61/SC 5 - Physical-chemical properties
SKU: ISO 2555:2018

Abstract

Overview

ISO 2555:2018 specifies a standardized method to determine the apparent viscosity of plastics resins (including emulsions and dispersions) using a single cylinder type rotational viscometer. The method covers measurements from 0.02 Pa·s to 60 000 Pa·s, and is applicable to both Newtonian and non-Newtonian liquids. The apparent viscosity reported is dependent on the velocity gradient imposed during the measurement (non-constant shear rate inherent to single-cylinder instruments).

Key topics and technical requirements

Scope and measurement range: Viscosity determination for resins in liquid form, emulsions or dispersions, 0.02–60 000 Pa·s.
Measurement principle: A spindle (cylinder or disc) rotates at constant angular velocity; the fluid’s resistance produces a torque which is converted to apparent viscosity using spindle-specific calibration coefficients.
Viscometer types: Allows both analogue (dial) and digital single-cylinder viscometers; digital devices automatically measure angle deviation and display viscosity when spindle and speed are entered.
Models and spindles: Model categories L, R, H(A), H(B) (increasing maximum torque capacity), with interchangeable spindles (L1–L4, R1–R7) sized for different viscosity ranges.
Test conditions: Guidance on choice of spindle and rotational speed, immersion level marks on spindles, use of guard stirrups (Annex B), thermostatic baths and additional apparatus to control temperature.
Accuracy and calibration: Calibration method and accuracy considerations are included; measured values for non-Newtonian fluids are conditional on shear conditions and instrument model.
Documentation: Required procedure steps, expression of results and test-report content are defined.

Practical applications

ISO 2555:2018 is used to obtain repeatable, comparable apparent viscosity data for:

Quality control of liquid resins, coatings, adhesives, inks and polymer dispersions
R&D and formulation optimization (processability, flow behavior)
Production monitoring (batch consistency, viscosity-driven process adjustments)

Abstract

Overview

Key topics and technical requirements

Scope and measurement range: Viscosity determination for resins in liquid form, emulsions or dispersions, 0.02–60 000 Pa·s.
Measurement principle: A spindle (cylinder or disc) rotates at constant angular velocity; the fluid’s resistance produces a torque which is converted to apparent viscosity using spindle-specific calibration coefficients.
Viscometer types: Allows both analogue (dial) and digital single-cylinder viscometers; digital devices automatically measure angle deviation and display viscosity when spindle and speed are entered.
Models and spindles: Model categories L, R, H(A), H(B) (increasing maximum torque capacity), with interchangeable spindles (L1–L4, R1–R7) sized for different viscosity ranges.
Test conditions: Guidance on choice of spindle and rotational speed, immersion level marks on spindles, use of guard stirrups (Annex B), thermostatic baths and additional apparatus to control temperature.
Accuracy and calibration: Calibration method and accuracy considerations are included; measured values for non-Newtonian fluids are conditional on shear conditions and instrument model.
Documentation: Required procedure steps, expression of results and test-report content are defined.

Practical applications

ISO 2555:2018 is used to obtain repeatable, comparable apparent viscosity data for:

Quality control of liquid resins, coatings, adhesives, inks and polymer dispersions
R&D and formulation optimization (processability, flow behavior)
Production monitoring (batch consistency, viscosity-driven process adjustments)

ISO 2555:2018 PDF

Технические детали

Abstract

Overview

Key topics and technical requirements

Practical applications

Abstract

Overview

Key topics and technical requirements

Practical applications

Who should use this standard

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