ASTM D 1316 Standard Test Method for Fineness of Grind of Printing Inks by the NPIRI Grindometer

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ASTM D 1316 Document Information:

Title
Standard Test Method for Fineness of Grind of Printing Inks by the NPIRI Grindometer

ASTM International

Publication Date:
Mar 1, 2006

Scope:

This test method describes the procedure for determining the fineness of grind of printing inks using a NPIRI Grindometer. It evaluates the size of the largest particles in a finished dispersion but not average particle size or concentration of sizes.

This test method covers both manual and automatic drawdowns using an A1 scraper.

This test method is applicable to any dispersion that is fine enough to fall within the 0–25 µm range of the specified grind gauge. With a minor variation in procedure, it is applicable to both paste (nonvolatile) and liquid (volatile) inks.

NOTE 1—The 0–25 µm gauge specified in this test method is similar in principle to the 0–100 µm Hegman gauge described in Test Method D 1210 and the various gauges described in ISO 1524:2000. Sieve analysis for concentration of particles above 45 µm is covered in Test Method D 2067.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

*A Summary of Changes section appears at the end of this standard.

Keywords:

Automatic Drawdown Machine (ADM-1)

A1 Scraper

pigment dispersions

degree of dispersion

NPIRI Grindometer

printing inks

grind gauge

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