ASTM S5F Non-Mercury Thermometer, -36 to 120F, NIST

ASTM S5F Non-Mercury Thermometer, -36 to 120°F, NIST-Traceable Calibration

The ASTM S5F Non-Mercury Thermometer is designed to provide accurate, reliable temperature measurement while prioritizing safety and environmental responsibility. With a measurement range of -36 to 120°F and a division of 2°F, this liquid-in-glass thermometer offers the same high performance as traditional mercury thermometers, but with a safer, eco-friendly alternative. The thermometer uses a proprietary dark blue liquid formula that is biodegradable, non-toxic, and non-hazardous, ensuring safe usage in a variety of settings. Additionally, the dark blue fluid is highly visible against its white-backed stem, making readings quick and easy.

Key Features:

• Meets ASTM Standards: Complies with ASTM E1, E77, and E2251 requirements, ensuring accuracy and reliability for critical testing applications.
• Safe Alternative to Mercury: Utilizes non-hazardous, biodegradable, and environmentally friendly indicating fluid.
• Enhanced Visibility: The dark blue liquid provides excellent contrast against the white-backed stem for easy readability.
• Versatile Applications: Suitable for Saybolt Viscosity Testing, Cloud & Pour Point testing, and more.
• NIST Traceable Calibration: Delivered with a 5-point calibration certificate from an ISO/IEC 17025-accredited laboratory, providing assurance of measurement accuracy.

NIST Calibration Details: The thermometer is calibrated using direct comparison in a high-stability liquid bath with Precision Reference Thermometers (PRTs) and Standard Platinum Resistance Thermometers (SPRTs). Each unit is tested at five temperature points to ensure precise measurements. Before calibration, the thermometer undergoes thorough inspection for cracks and liquid-column separations.

Specifications:

• ASTM Number: S5F
• Temperature Range: -36 to 120°F
• Immersion Depth: 4.3 in (108 mm)
• Division: 2°F
• Type: Non-Mercury
• Length: 4.2 in (108 mm)
• Application: Cloud & Pour Point testing

Usage & Storage Notes: To maintain accuracy and prevent fluid column separation, always store the thermometer vertically in a designated storage rack. For environments with high exposure, such as ovens, it is recommended to use a thermometer well for added protection and thermal stabilization.

Why Choose the ASTM S5F Non-Mercury Thermometer? This thermometer is an excellent choice for labs and industries that seek a safer, eco-conscious alternative to traditional mercury thermometers without compromising performance. Ideal for petroleum testing and other ASTM-compliant processes, its robust design and reliable calibration make it a trusted tool for precise temperature measurement.