The Model SP-3A was conceived, developed and patented by Dominick Labino, an internationally renowned glass scientist and artisan, who recognized the glass industry's need for a simple, rapid softening point determination.
This simple, low cost device is a modified parallel plate viscometer whose results correlate very well with Littleton Softening Point Temperatures that are determined according to ASTM C-338. Solid glass samples are used instead of glass fibers. Consequently, sample preparation is easier, particularly for glass compositions that are difficult or impossible to form fibers.
A complete and compact bench-top instrument for approximating the softening point of solid glass pieces by the Labino Method.
The Model SP-3A is a unique, patented system that was designed as a low cost instrument for quickly and easily measuring the Littleton Softening Point of glasses without pulling fibers. The tests are performed on a small blocks of glass samples.
|Cooling||Air assist (15 psi, 3 cfm, dry, and oil free)|
|Temperature Range||RT to 1,000°C|
|Micro-switch travel resolution||0.0001|
|Temperature Resolution||1°C or °F|
|Ball bearing size||1/8|
|Sample Size||5 mm square x 3 mm thick|
|Power Requirements||120vac/5amp or 240vac/2.5amp, 50/60 Hz|
|Penetration rod||Stainless Steel|
|Furnace Movement||Manual lift|
|Temperature Control||Dwyer 16010 controller with peak hold|
|Dimensions||8 x 8 x 22 (20 x 20 x 56 cm)|
|Weight||11.3 lbs. (5.1kg)|