ASTM S59C Non-Mercury Thermometer, -18 to 82C, NIST

ASTM S59C Non-Mercury Thermometer, -18 to 82C, with NIST Calibration

The ASTM S59C Non-Mercury Thermometer offers precise temperature readings from -18 to 82°C, with clear 0.5°C graduations. Designed for total immersion applications, this thermometer is specified for tank testing but is versatile enough for various laboratory uses within its temperature range. Its total length is 12 inches (305mm), ensuring easy handling and reading.

As a safe and reliable alternative to traditional mercury thermometers, this liquid-in-glass instrument meets the stringent requirements of ASTM test methods. It delivers the same high performance and accuracy as its mercury counterparts but utilizes a safe, blue, non-toxic indicating fluid. This proprietary liquid is biodegradable and non-hazardous, making it an environmentally responsible choice. The dark blue color of the fluid stands out against the white-backed stem, ensuring high visibility and error-free readings.

Features:

• Compliance: Fully meets ASTM E1, E77, and E2251 requirements.
• Safe Indicating Fluid: Features a non-hazardous, biodegradable, and non-toxic liquid.
• High Visibility: The dark blue fluid is easily readable against the white-backed glass stem.
• Versatile Application: Acceptable for a range of tests, including Saybolt Viscosity Testing.

NIST Traceable Certificate of Calibration: Each thermometer includes a NIST Traceable Certificate of Calibration, providing assurance of its accuracy and reliability. This five-point calibration is performed by an ISO/IEC accredited laboratory, guaranteeing that the procedure adheres to the highest quality standards. The calibration process involves direct comparison against a Precision Reference Thermometer (PRT) and a Standard Platinum Resistance Thermometer (SPRT) in a high-stability liquid bath. Before calibration, each thermometer is thoroughly inspected for physical defects such as cracks or liquid column separations. The certificate confirms accurate measurements at five distinct temperature points across the thermometer's range.

Product Specifications:

• ASTM Number: S59C
• Temperature Range: -18 to 82°C
• Immersion Depth: Total
• Primary Application: Tank Testing
• Sub-Division: 0.5°C
• Thermometer Type: Non-Mercury, Spirit-Filled

Care and Storage: To maintain accuracy and prevent fluid column separation, it is crucial to store these thermometers vertically. A dedicated storage rack is recommended for proper care.

Accessories: For enhanced protection and thermal stabilization, especially in ovens or other exposed environments, consider using a Thermometer Well. This accessory shields the glass thermometer from damage while ensuring stable and accurate readings.