ASTM D1725-12R19
Standard Practice for Preparing Resin Solutions for Viscosity Measurement by Bubble Time Method
| Standard number: | ASTM D1725-12R19 |
| Released: | 01.06.2019 |
| Status: | Active |
| Pages: | 3 |
| Section: | 06.03 |
| Keywords: | bubble time; resin solutions; viscosity; |
| ASTM number: | ASTM D1725 |
| Supersedes: | D1725-12 |
This test method details the standard procedure for measuring the viscosity of resin solutions. The apparatuses required here are constant-temperature water bath, wide-mouthed screw capped bottles, cellophane sheets, No. 2 short taper corks, viscosity tube holder, bottle shaker, timing device, and viscosity tubes. Solid resins are dissolved in organic solvents by cold-cut or hot-cut methods in the laboratory. The viscosity of such prepared solutions, or of commercial solutions of resins is then determined by the bubble time method. The bubble seconds are approximately equal to stokes.
1.1 This practice provides instructions for preparing resin solutions viscosity measurement by bubble time method.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 7.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.