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TECHNICAL RESOURCES

The Details Behind the Product.

Download NBS reference information to support your product selection and specifications.

Help With Your Selections

Technical Guides

Thermocouple types, RTD leads, wire insulation, thermowell dimensions and other common configuration questions.

Sensors & Wire

Thermocouple Application Data

Thermocouple reference data for reviewing an application.

Thermocouple & Extension Wire

Thermocouple and extension-wire properties and temperature limits.

Materials & Construction

Protection Tube Materials

Material reference for protection-tube selection.

Metal Protection Tube Dimensions

Pipe and tube dimensional reference.

Enclosures & Applications

NEMA Enclosure Types

Historical reference based on NEMA 250-1997.

Hazardous Locations Reference

Historical reference based on NFPA 497M-1983.

Conversions & Terms

Measurement & Conversion Table

Fractions, decimal inches and millimeters. Updated November 2026.

Temperature Conversion Chart

Fahrenheit and Celsius tables with conversion formulas. Updated November 2026.

Temperature Measurement Glossary

Terminology used in temperature measurement.

The enclosure and hazardous-location sheets are historical references based on the editions shown. They do not establish a product rating or approval. Include the required code or standard revision with your quotation request so our team can review your application.

TALK WITH NBS

Need Help Interpreting a Specification?

Our team can help you identify the product information needed for your quote.