ASTM S65C Non-Mercury Thermometer, 50 to 80C, NIST

ASTM S65C Non-Mercury Thermometer, 50° to 80°C, with NIST Calibration

The ASTM S65C Non-Mercury Thermometer is a precision laboratory instrument designed for accurate temperature measurement. It features a total measurement range from 50° to 80°C, with clear graduations of 0.1°C for precise readings. As a total immersion thermometer, it is specified for use in a variety of precision testing applications where the entire column is immersed in the medium being measured. Its total length is 15.7in (400mm).

Safe and Sustainable Alternative to Mercury Engineered to meet the stringent requirements of modern laboratories, this thermometer provides the same high-performance characteristics as traditional ASTM Mercury Thermometers but without the associated hazards. The indicating fluid is a proprietary, biodegradable, non-toxic, and non-hazardous blue liquid. This environmentally friendly formula eliminates the risks of mercury contamination and simplifies cleanup in case of breakage. The dark blue color of the liquid provides a sharp contrast against the white-backed stem, ensuring it is easily readable from a distance.

Features:

• Compliance: Fully meets ASTM E1, E77, and E2251 requirements.
• Safe Liquid: Filled with non-hazardous, biodegradable indicating fluid.
• High Visibility: Dark blue fluid is highly visible against the white-backed stem for easy reading.
• Versatile Application: Acceptable for use in specialized procedures like Saybolt Viscosity Testing and other precision tasks within its range.

NIST Traceable Certificate of Calibration Included Each thermometer comes with a NIST Traceable Certificate of Calibration, providing documented assurance of its accuracy. This five-point calibration is performed in an ISO/IEC accredited laboratory, guaranteeing that the calibration process is conducted in a qualified, controlled environment.

The calibration process involves a direct comparison in a high-stability liquid bath against a Precision Reference Thermometer (PRT) and a Standard Platinum Resistance Thermometer (SPRT). Before testing, each thermometer is thoroughly inspected for physical defects, such as cracks or liquid-column separations. Measurements are carefully performed at five distinct temperature points across the thermometer's range to certify its accuracy.

Specifications:

• ASTM Number: S65C
• Temperature Range: 50° to 80°C
• Application: Precision
• Immersion: Total
• Division: 0.1°C
• Type: Non-Mercury
• Length: 15.7in (400mm)

Proper Use and Storage: To maintain the integrity of the thermometer and prevent fluid column separation, it is crucial to store it vertically in a dedicated storage rack when not in use. For applications in ovens or other exposed environments, using a Thermometer Well is recommended to provide physical protection and enhance thermal stabilization.