Plastic Specific Instruments

Each unit serviced is cleaned, calibrated, adjusted where applicable, and Calibration stickers are adhered and returned to service.

Izod Notch Machine      ASTM D256, Section 8 & D594
Apparatus: shall be done on a milling machine, engine lathe, or other suitable machine tool. Both the feed rate and cutter speed shall be constant throughout the notching process. 

Calibrated features: Micrometer ( Dial Resolution 0.001 in, Digital Resolution 0.00005 in ); Setting Gage Block; Cutter Tooth (Radius, Angle, Depth); Cutter Tooth Rotational Speed and Sample Feed Rate.


Izod Impact Tester      ASTM Method D256  Appendix X2., ISO 179
Covers the determination of the resistance of plastics to "Standardized" pendulum type hammers, mounted in"Standardized" machines, in breaking standard specimens with one pendulum swing.

Calibrated features: Base ( level, mass, affixed ); Impact Indicator (dial or digital), Pendulum Arm ( Straightness, Length, horizontal hammer weight ); Strike Angle & radius; Vertical Fall; Vise or Jig Height of moveable vise jaw; Strike oil line to vise top edge; Holder Top Edge Radius.


Charpy Impact Tester        ASTM Method D6110, ISO 180, 13802
Determining the charpy impact resistance of notched specimens of plastics. Resistance of plastics to breakage by flexural shock as indicated by the energy extracted from standardized pendulum type hammers with one swing.

Calibrated features: Base ( level, mass, affixed ); Impact Indicator (dial or digital), Pendulum Arm ( Straightness, Length, horizontal hammer weight ); Charpy Strike Angle & radius; Vertical Fall; Vise or Jig Height of moveable vise jaw; Strike oil line to vise top edge; Holder Top Edge Radius.


Extrusion Plastometer        ASTM D1238
Determination Melt Flow Rates of Thermoplastics. Apparatus: shall be a Dead weight - piston plastometer consisting of a thermostatically controlled cylinder with a die at the lower end and a weighted piston operating within the cylinder.

Calibrated features: Cylinder( Inside Diameter, Length ); Die ( Outside Diameter, Height, Inside Diameter ); Piston ( Length, Shaft Diameter, Foot Length, Foot Outside Diameter ); Temperature Uniformity ( Alternate Method ); Timing Device; External Loading Weights.


Gardner Impact Tester        ASTM Method D5420
Determination Impact Resistance of Flat, Rigid Plastic by Falling Weight. Energy required to crack or break specimens.

Calibrated features: Suitable Base, Slotted Guide Tube with Scale, Steel-Rod Impact Mass (2,4,8 lbs), Hardened Steel Striker, Support Plate dimensions.


HDT Tester        ASTM Method D648
Deflection Temperature at which an arbitrary deformation occurs. Plastics under flexural load in edgewise position.

Calibrated features: Immersion Bath, Heat-Transfer Medium, Specimen Support, Deflection Measuring Device, Mass, Temperature Indicator, Loading Rod.


VICAT Tester        ASTM Method D1525
Determination of the Softening Temperature of plastics, temperature at which a specified needle penetration occurs.

Calibrated features: Immersion Bath, Heat-Transfer Medium, Specimen Support, Penetration Measuring Device, Mass, Temperature Indicator, Needle.


Moisture Analyzer        Mfr's Method
Determination of the Moisture Content of plastics,at specified temperature for a given time duration.

Calibrated features: temperature, pan height, run time, sample analysis.


Capillary Rheometer        ASTM Method D3835
This method covers measurement of the rheological properties of polymeric materials at various temperatures and shear rates common to processing equipment. Apparatus: any capillary rheometer is satisfactory in which molten thermoplastic can be forced from a reservoir through a capillary die and in which temperature, applied force, output rate, and barrel and die demensions can be controlled and measured accurately.

Calibrated features: Barrel, capillary die, Piston, Temperature Uniformity ( Alternate Method ), Ram Load Cell, Timer.

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Please use the Form provided when sending anything in for service. The more information you provide is helpful in Riverview providing you the most efficient and accurate service.

  • Service Notices

We also track your equipment, 30 days prior to due dates we send out "Service Notices" to our customers.

We Accept

Certificate No. 1331-01 Calibration