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Significance and Use
This practice provides a means of preparing a number of gel vehicle samples with minimum use of materials and time. It provides a means of quickly characterizing and comparing the gelability or reactivity of resins, vehicles, and gelling agents.
1.1 This practice outlines a procedure for preparing gelled vehicle samples using a microwave oven.
1.2 The test samples can be used for characterizing the gelability or reactivity of resins, gelling agents, and vehicles used in the manufacture of oil based printing inks, or both.
1.3 Evaluation of the gelled vehicles may, depending upon preference, be either visual or instrumental.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D154 Guide for Testing Varnishes
D1545 Test Method for Viscosity of Transparent Liquids by Bubble Time Method
D1725 Test Method for Viscosity of Resin Solutions
D4040 Test Method for Rheological Properties of Paste Printing and Vehicles by the Falling-Rod Viscometer
E1 Specification for ASTM Liquid-in-Glass Thermometers
ICS Number Code 71.040.40 (Chemical analysis)
UNSPSC Code 13111000(Resins)