ASTM E235/E235M
Standard Specification for Type K and Type N Mineral-Insulated, Metal-Sheathed Thermocouples for Nuclear or for Other High-Reliability Applications
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About This Item
ASTM E235/E235M is the ASTM specification for Type K and Type N mineral-insulated, metal-sheathed thermocouples used in nuclear or other high-reliability applications. It helps define a common technical basis for selecting and evaluating thermocouples where dependable temperature measurement is critical. By addressing the construction and intended use of these sensors, the standard supports more consistent procurement, quality control, and compliance decisions for demanding operating environments.
What is ASTM E235/E235M?
This standard provides a specification framework for Type K and Type N thermocouples that use mineral insulation and a metal sheath. In practical terms, ASTM E235/E235M is used to identify the product characteristics expected of these thermocouples when they are intended for nuclear service or other high-reliability applications. The document is useful for aligning buyers, suppliers, and engineers on the same technical requirements for sensor selection and evaluation.
Where is ASTM E235/E235M used?
ASTM E235/E235M is commonly referenced where temperature sensing must remain dependable under controlled and demanding conditions. Typical use includes nuclear-related systems and other applications that rely on mineral-insulated, metal-sheathed thermocouples for stable measurement performance. It is especially relevant in procurement, specification writing, and product verification for instrumentation programs that need clear acceptance criteria for thermocouple construction and intended service.
Why is ASTM E235/E235M important?
This specification matters because high-reliability temperature measurement depends on consistent product requirements and clear expectations. ASTM E235/E235M can help reduce ambiguity during sourcing and testing by giving purchasers and manufacturers a shared reference for thermocouple type and construction. That supports better quality control, more confident compliance checks, and lower risk when the application calls for dependable sensor performance in critical environments.
- Type K and Type N thermocouple specification
- Mineral-insulated, metal-sheathed construction
- Nuclear and other high-reliability applications
- Procurement and quality verification reference
- Publication Date: 2023-07-12
- Publisher: ASTM
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