Labino Softening Point
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.
- 1000°C furnace
- programmable process controller
- stainless steel sample holder and penetration rod
- 100 stainless steel ball bearings
- one vial of high alumina powder
- Type "K" thermocouple
- and instruction manual.
Model : SP-3A
Warranty : 12 Months
Cooling : Air assist (15 psi, 3 cfm, dry, and oil free)
Atmosphere : Air
Temperature Range : RT to 1,000°C
Furnace : Tube style
Micro-switch travel resolution : 0.0001”
Temperature Resolution : 1°C or °F
Thermocouple : Type “K”
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
Power Control : SSR
Sampleholder : Stainless Steel
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)