Standard Specification for Temperature-Electromotive Force (emf) Tables for Standardized Thermocouples (Includes all amendments and changes 1/4/2024).
NORMA vydána dne 1.11.2023
Označení normy: ASTM E230/E230M-23a
Datum vydání normy: 1.11.2023
Počet stran: 172
Přibližná hmotnost: 547 g (1.21 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
This specification contains reference tables that give temperature-electromotive force (emf) relationships for types B, E, J, K, N, R, S, T, and C thermocouples. These are the thermocouple types most commonly used in industry. Thermocouples and matched thermocouple wire pairs are normally supplied to the tolerances on initial values of emf versus temperature. Color codes for insulation on thermocouple grade materials, along with corresponding thermocouple and thermoelement letter designations are given. Four types of tables are presented: general tables, EMF versus temperature tables for thermocouples, EMF versus temperature tables for thermoelements, and supplementary tables.
Keywords:
emf computation, compensating extension wire, inverse polynomial, polynomial coefficient, reference tables, thermocouple, thermocouple extension wire, thermoelement, upper temperature limit,, ICS Number Code 17.200.20 (Temperature-measuring instruments)