GOST R 8.585-2001 PDF

Full title and description

GOST R 8.585-2001 — Государственная система обеспечения единства измерений. Термопары. Номинальные статические характеристики преобразования. Standard specifying the nominal static conversion characteristics of thermocouples (EMF versus temperature relationships), applicable temperature ranges and permissible deviations for commonly used thermocouple types.

Abstract

This national standard defines nominal static conversion characteristics for thermocouples used in measurement, calibration and design. It contains the names and designation of thermocouple types, tabulated or formula representations of thermoelectromotive force (EMF) as a function of temperature, specified temperature ranges, tolerance (permissible deviations) classes and rules for applying the nominal characteristics when developing technical documentation and performing metrological operations.

General information

• Status: Effective / Current (in force)
• Publication date: Approved November 21, 2001; introduced (date of enforcement) July 1, 2002.
• Publisher: Gosstandart of Russia (State system for ensuring the uniformity of measurements; currently administered under the national standards authority).
• ICS / categories: 17 — Metrology and measurements (classified under metrology and measurements in general, national metrology standards).
• Edition / version: 2001 edition — GOST R 8.585-2001.
• Number of pages: 82 pages (typical published edition).

Scope

The standard establishes nominal static conversion characteristics of thermocouples and is intended for use when specifying thermocouples in technical documentation, design documents and regulatory materials. It applies to industrial thermocouple types and covers declared EMF–temperature relationships, reference junction conditions, temperature ranges for each type, and permissible deviations (tolerances). It does not prescribe construction details of probes or installation practices beyond metrological specification of the conversion characteristic.

Key topics and requirements

• Designation and list of thermocouple types commonly used in industry (examples: R, S, B, J, T, E, K, N and others as defined in the text).
• Nominal static conversion characteristics (EMF versus temperature) presented as tables and/or polynomial expressions for each thermocouple type.
• Specified temperature ranges for each thermocouple type and the nominal characteristic valid ranges.
• Permissible deviations (tolerance classes) from the nominal characteristic; rules for expressing tolerances and accuracy classes.
• Reference junction (cold junction) conditions and conventions for reporting EMF or temperature values.
• Requirements for use of nominal characteristics in technical documentation, calibration certificates and verification procedures.
• Annexes/tables with numerical values and, where applicable, correction or amendment notes that modify introduction dates or specific entries.

Typical use and users

Used by thermocouple manufacturers and suppliers to declare nominal characteristics and tolerances; by calibration and testing laboratories for specifying reference data and calibration procedures; by designers and instrumentation engineers when selecting thermocouple types for sensors and measuring systems; and by regulatory bodies and certification organizations when developing normative documents that reference thermocouple performance.

Related standards

Related national and international documents commonly referenced with this standard include earlier national specifications that it replaced, other GOST/GOST R metrology standards in the "State system for ensuring the uniformity of measurements" series, and international standards on thermocouples (for example the IEC/ISO thermocouple series such as IEC 60584). The standard has been used to supersede or harmonize with certain older national documents in the same subject area.

Keywords

thermocouple; nominal static characteristic; EMF–temperature relationship; thermoelectromotive force; temperature range; tolerance; metrology; calibration; GOST R; reference junction.

FAQ

Q: What is this standard?

A: GOST R 8.585-2001 is a Russian national metrology standard that defines nominal static conversion characteristics for thermocouples — the relationship between thermoelectromotive force (EMF) and temperature for specified thermocouple types.

Q: What does it cover?

A: It covers designation of thermocouple types, nominal EMF-versus-temperature characteristics (tables and/or equations), valid temperature ranges, permissible deviations (tolerances), reference junction conventions and rules for using these nominal characteristics in technical and regulatory documents.

Q: Who typically uses it?

A: Thermocouple manufacturers, calibration and metrology laboratories, instrumentation and controls engineers, standards bodies and technical authors who need standardized nominal characteristics and tolerance information for thermocouples.

Q: Is it current or superseded?

A: As issued, the 2001 edition (GOST R 8.585-2001) was approved in November 2001 and introduced in July 2002. It is published as an active national standard; users should verify whether any later revision or replacement has been issued and check for published amendments or corrigenda before relying on the table values for critical metrology work.

Q: Is it part of a series?

A: Yes. It belongs to the State system for ensuring the uniformity of measurements (GOST R 8.x) series of metrology and measurement standards, which cover measurement methods, reference data and requirements for instruments and sensors.

Q: What are the key keywords?

A: Thermocouple; thermoelectromotive force; nominal static characteristic; temperature range; tolerance; calibration; reference junction; GOST R.