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Description of ASTM-D2067 2013ASTM D2067 - 97(2013)Standard Test Method for Coarse Particles in Printing Ink DispersionsActive Standard ASTM D2067 | Developed by Subcommittee: D01.56 Book of Standards Volume: 06.02 ASTM D2067Significance and Use 4.1 Coarse particles in printing inks reduce the efficiency of the dispersion process, requiring not only extra milling passes, but also frequent changes in pump filters. In printing processes, they may cause excessive wear to metal plates, piling or localized retention of ink on blankets and plates, and water balance problems. Coarse particles also reduce color strength and the gloss of printed matter. 4.2 This test method is suitable for quality control. The precision may be improved by the use of a specimen size larger than that prescribed. 4.3 Test results are sensitive to the type of washout solvent used. Strong solvents are to be avoided because they may dissolve large particles of resin in the ink vehicle. 1. Scope 1.1 This test method covers the determination of the weight concentration of coarse particles in printing ink dispersions by sieve retention. 1.2 This test method is applicable to printing inks, flushed pigments, and other pigment dispersions that contain particles larger than 45 ?m. With proper choice of solvent, it is applicable both to paste and liquid inks.
Note 1 This test method is similar in principle to Test Methods D185 . For particles under 25 ?m, see Test
Method D1316 .
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 This standard does not purport to address 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.
ASTM Standards D185 Test Methods for Coarse Particles in Pigments D235 Specification for Mineral Spirits (Petroleum Spirits) (Hydrocarbon Dry Cleaning Solvent) D1316 Test Method for Fineness of Grind of Printing Inks By the NPIRI Grindometer E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves E145 Specification for Gravity-Convection and Forced-Ventilation Ovens E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method Keywords coarse particles; dispersions; pigment dispersions; printing inks; wire-cloth sieve; ICS Code ICS Number Code 87.080 (Inks. Printing inks) DOI: 10.1520/D2067 ASTM International is a member of CrossRef. ASTM D2067This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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