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Paint Extenders

Paint extender particle testing standards are published by ISO. They cover a variety of specifications and test methods, including general test methods, barytes, blanc fixe, whiting, calcium carbonate, dolomite, clay, talc, muscovite mica, quartz, cristobalite, silica, aluminum hydroxide, calcium silicate, sodium aluminum silicate, and kieselguhr. If your organization works with these common chemicals found in paint, consider purchasing a document as a instantly-delivered PDF file.


ISO 3262-1:2020

Extenders - Specifications and methods of test - Part 1: Introduction and general test methods

This document gives the definition for the term extender and specifies test methods that are required for most of the subsequent parts of ISO 3262. NOTE The subsequent parts of ISO 3262 specify requirements and the corresponding methods of test for extenders for use in paints, related coating materials and other applications.










ISO 3262-10:2000

Extenders for paints -- Specifications and methods of test -- Part 10: Natural talc/chlorite in lamellar form

This part of ISO 3262 specifies requirements and corresponding methods of test for products made from naturally occurring talc/chlorite in lamellar form.


ISO 3262-11:2000

Extenders for paints -- Specifications and methods of test -- Part 11: Natural talc, in lamellar form, containing carbonates

This part of ISO 3262 specifies requirements and corresponding methods of test for products made from naturally occurring talc in lamellar form associated with carbonates.













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As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

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