ASTM S37C Non-Mercury Thermometer, -2 to 52C, NIST

ASTM S37C Non-Mercury Thermometer, -2 to 52C, NIST

The ASTM S37C Non-Mercury Thermometer, with a range of -2 to 52°C, offers a precise and safe solution for critical temperature measurements, particularly in laboratory and industrial settings. This thermometer is designed to meet the rigorous performance standards of ASTM while prioritizing user safety and environmental responsibility.

Key Features & Specifications:

• Non-Mercury Design: Utilizes a safe, blue, biodegradable, non-toxic, and non-hazardous indicating liquid. This eliminates the risks associated with mercury thermometers, making it ideal for environments where safety and environmental compliance are paramount.
• Enhanced Readability: The dark blue indicating liquid stands out clearly against the white-backed stem, ensuring quick and accurate readings, even under varying lighting conditions.
• Precision Measurement: Features a fine division of 0.2°C, providing the accuracy required for demanding applications.
• Optimal Immersion: Designed for 100mm immersion, ensuring the sensor bulb is fully submerged in the medium for precise temperature acquisition without thermal gradients from the stem.
• Robust Construction: The thermometer measures 400mm (15.7 inches) in length, offering durability and ease of handling in various setups.
• Application: Specifically suited for Solvents Distillation, where consistent and accurate temperature control is vital for process integrity and product purity.

NIST Traceable Calibration:

Each thermometer comes with a comprehensive NIST Traceable Certificate of Calibration. This certificate confirms that the thermometer has undergone a five-point calibration in an ISO/IEC accredited laboratory. This accreditation guarantees that the calibration process adheres to the highest international standards, ensuring reliability and traceability to national measurement standards.

Calibration Process:

Calibration is performed through direct comparison in a high-stability liquid bath against a Precision Reference Thermometer (PRT) and Standard Platinum Resistance Thermometer (SPRT) with certified displays. Prior to testing, each thermometer undergoes a meticulous inspection for any physical defects, including cracks or liquid-column separations, to ensure optimal performance. Measurements are recorded at five distinct temperature points across the instrument's range to verify accuracy and linearity.

Maintenance and Protection:

• Storage: To prevent fluid column separation, always store non-mercury thermometers vertically, ideally using a dedicated storage rack.
• Protection: For applications in ovens or other exposed environments, a Thermometer Well is recommended. This accessory provides crucial physical protection for the glass and aids in thermal stabilization, ensuring consistent and reliable readings over extended periods.

This non-mercury thermometer is a reliable and environmentally conscious choice for professionals demanding accuracy and safety in their temperature measurement needs.