Your cart is currently empty!
“ISO 3262:2023 Extenders – Specifications and methods of test – Part 15: Vitreous silica” has been added to your cart. View cart
ISO 8781:1990
ISO 8781:1990 Pigments and extenders – Methods of assessment of dispersion characteristics – Part 1: Assessment from the change in tinting strength of coloured pigments
CDN $76.00
Description
Relates to coloured pigments which have been dispersed by one of the methods described in ISO 8780. The method is of general use for comparing similar pigments, for example a test pigment against an agreed reference pigment. The principle consists in dispersing the pigment in stages under specified conditions in an agreed binder system. After each dispersion stage, a portion of the mill base is taken and mixed separately with a white pigment to form a reduced paste. The tinting strength of each reduced paste is determined as described in ISO 787-24. The percentage increase in tinting strength between two dispersion stages is calculated in order to assess the ease of dispersibility of the pigment.
Edition
1
Published Date
1990-11-15
Status
PUBLISHED
Pages
5
Language
English
Format
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment
Abstract
Relates to coloured pigments which have been dispersed by one of the methods described in ISO 8780. The method is of general use for comparing similar pigments, for example a test pigment against an agreed reference pigment. The principle consists in dispersing the pigment in stages under specified conditions in an agreed binder system. After each dispersion stage, a portion of the mill base is taken and mixed separately with a white pigment to form a reduced paste. The tinting strength of each reduced paste is determined as described in ISO 787-24. The percentage increase in tinting strength between two dispersion stages is calculated in order to assess the ease of dispersibility of the pigment.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 3262:2024 Extenders – Specifications and methods of test – Part 11: Natural talc, in lamellar form, containing carbonates
CDN $76.00 Add to cart -
ISO 3262:2023 Extenders – Specifications and methods of test – Part 3: Blanc fixe
CDN $115.00 Add to cart -
ISO 3262:2023 Extenders – Specifications and methods of test – Part 14: Cristobalite
CDN $76.00 Add to cart -
ISO 18314:2024 Analytical colorimetry – Part 4: Metamerism index for pairs of samples for change of illuminant
CDN $233.00 Add to cart
