GOST 31666-2014 PDF

Full title and description

GOST 31666-2014 — National standard of the Russian Federation: "Non-automatic weighing instruments. General technical requirements, metrological and design characteristics." This standard establishes general technical, metrological and design requirements for non-automatic weighing instruments (NAWIs), including requirements for metrological characteristics, construction, marking and documentation to ensure accuracy and uniformity of measurements in trade, industry and laboratory applications.

Abstract

GOST 31666-2014 specifies the general requirements applicable to a wide range of non-automatic weighing instruments — stationary and portable scales with various load cells and indication systems — intended for measuring mass or force under non-automatic operation. It sets out classification, metrological performance (accuracy classes, maximum capacity, verification scales), environmental and safety conditions, requirements for electrical and software elements where applicable, instructions for marking, user documentation and conformity assessment considerations.

General information

• Status: National standard (GOST) in force as of 2014; used as the primary Russian standard for general requirements for non-automatic weighing instruments.
• Publication date: 2014
• Publisher: Federal Agency on Technical Regulating and Metrology (Rosstandart) / national standards body of the Russian Federation
• ICS / categories: 17.040 (Metrology and measurement) and related mechanical engineering and instrumentation categories
• Edition / version: Edition of 2014 (GOST 31666-2014)
• Number of pages: Typically around 20–40 pages depending on the official publication format; exact page count may vary by publisher print.

Scope

This standard applies to non-automatic weighing instruments used for measuring mass (or mass-derived quantities) and related functions where the weighing process is initiated and controlled by an operator rather than automatically. It covers general technical requirements applicable across different types and designs of NAWIs, including mechanical, electromechanical and electronic systems, but does not replace specialized standards that specify detailed requirements for particular classes, applications or verification procedures.

Key topics and requirements

• Classification of non-automatic weighing instruments by type, form, application and accuracy class.
• Metrological characteristics: maximum capacity (Max), verification scale interval (e), limit of permissible error, repeatability and influence quantities.
• Design and construction requirements to ensure measurement stability, safety and reliability under specified environmental conditions (temperature, humidity, vibration).
• Requirements for load receptors, weighing mechanisms and force transducers (load cells) including protection against overload and mechanical wear.
• Requirements for indication systems, displays, recording devices and user interfaces, including legibility and units of measurement.
• Electrical safety and electromagnetic compatibility considerations for electronic NAWIs.
• Marking, labeling and documentation requirements: type designation, manufacturer data, metrological characteristics, operating instructions and verification/maintenance recommendations.
• General requirements for software and firmware used in NAWIs where applicable (reliability, traceability of measured values, protection against unauthorized changes).
• Guidance on conformity assessment, verification and periodic testing to ensure ongoing metrological performance.

Typical use and users

GOST 31666-2014 is used by manufacturers and designers of weighing instruments to design and certify devices that meet Russian regulatory and market requirements; by metrology and conformity assessment bodies for type approval and verification procedures; by laboratories and industrial users for selection and procurement of appropriate weighing equipment; and by regulatory agencies overseeing trade, health and safety where accurate weighing is required.

Related standards

GOST 31666-2014 is related to other GOST and international documents governing specific types of weighing instruments, verification methods and metrological practices. Related standards include documents that set detailed requirements for verification procedures, load cell testing, environmental tests, electromagnetic compatibility and safety. It also aligns conceptually with OIML and ISO recommendations on non-automatic weighing instruments and metrological controls.

Keywords

non-automatic weighing instruments; NAWI; scales; metrological requirements; verification; accuracy classes; load cell; weighing mechanism; marking; conformity assessment; Rosstandart.

FAQ

Q: What is this standard?

A: GOST 31666-2014 is the Russian national standard that defines general technical, metrological and design requirements for non-automatic weighing instruments (scales) used in trade, industry and laboratory contexts.

Q: What does it cover?

A: It covers classification, metrological characteristics (accuracy, capacity, scale intervals), construction and safety requirements, environmental performance, marking and documentation, software considerations and guidance for conformity assessment and verification of non-automatic weighing instruments.

Q: Who typically uses it?

A: Manufacturers, designers and suppliers of weighing instruments; metrology laboratories and certification bodies; procurement specialists in industry and commerce; and regulatory authorities responsible for weights and measures enforcement.

Q: Is it current or superseded?

A: The standard was published in 2014. Users should check the national standards registry or Rosstandart bulletins for any amendments, revisions or superseding standards after 2014 to confirm current status.

Q: Is it part of a series?

A: Yes. GOST 31666-2014 provides general requirements and is typically used alongside other GOST standards and normative documents that specify detailed requirements for particular types of weighing instruments, verification methods, environmental testing and metrological procedures.

Q: What are the key keywords?

A: Non-automatic weighing instruments, scales, metrological requirements, accuracy class, verification scale, load cell, marking, conformity assessment.