GOST 28498-90 PDF

Full title and description

GOST 28498-90 — "Thermometers liquid-in-glass. General technical requirements. Methods of tests." This interstate (GOST) standard defines general technical requirements, construction and marking rules, metrological characteristics and the prescribed test methods for liquid-in-glass thermometers (including mercury and organic-fill types).

Abstract

GOST 28498-90 sets uniform requirements and test procedures for glass thermometers whose working fluid is a liquid. It covers materials and construction, scale and graduation, accuracy classes and permissible errors, marking, packaging and a range of type and routine tests used to verify performance and safety. The standard was prepared with reference to several ISO documents and intended for use by manufacturers, calibration laboratories and procurers of laboratory and meteorological thermometers.

General information

• Status: Withdrawn / superseded (no longer valid as a current national requirement; replaced in practice by later standards and national adoptions).
• Publication date: Introduced 01 January 1991 (approved 30 March 1990; effective from 1991-01-01).
• Publisher: Issued under the authority of the State Committee for Standardization of the USSR / Interstate Council (Gosstandart and related standard bodies).
• ICS / categories: 17.200.20 — Temperature-measuring instruments.
• Edition / version: Original GOST designation 28498-90 (text and amendments as published in the 1990/1991 edition).
• Number of pages: 11 pages (typical published electronic/print edition).

Scope

The standard applies to liquid-in-glass thermometers intended for general temperature measurement tasks (laboratory, meteorological and some industrial uses). It covers requirements for thermometer construction (bulb, capillary, scale), permissible liquids (mercury and organic fills where applicable), accuracy classes and permissible errors, marking and packaging, and prescribes methods for type and routine testing — for example immersion, thermal response, hermeticity and calibration checks. It is not a device-specific calibration procedure document but a general technical specification and test-methods reference.

Key topics and requirements

• Definitions and classification of liquid-in-glass thermometers (types and accuracy classes).
• Design and construction requirements: glass quality, bulb and capillary geometry, fill liquids, scale marking and graduation rules.
• Metrological characteristics: nominal range, scale division value, permissible systematic errors by accuracy class.
• Marking, labelling and packaging requirements to ensure traceability and safe transport/handling.
• Required type and routine tests: thermal response, comparison with reference thermometers, hermeticity, mechanical strength and visual inspection.
• References to related international standards (ISO) used in preparation of the GOST text.

Typical use and users

Manufacturers of glass thermometers, calibration and testing laboratories, procurement specialists for meteorological and laboratory equipment, quality assurance personnel, and regulatory or standards bodies use this standard as a technical-specification and test-methods reference for liquid-in-glass thermometers. It is also used by organizations specifying acceptance criteria in tenders and purchase specifications for laboratory/meteorological thermometers.

Related standards

GOST 28498-90 references and aligns with several ISO documents (for example ISO 386 and ISO 1770/1771 series referenced in the GOST text). Over time it has been linked with other national GOSTs concerning glassware and thermometer technical conditions (for example GOST 18481-81 for glass cylinders) and, in practice, has been superseded in many contexts by later regional or international adoptions (for example national application/adoption of EN/ISO-based standards such as SM EN 13485:2017 in some catalogs).

Keywords

liquid-in-glass thermometer; glass thermometer; mercury thermometer; alcohol thermometer; accuracy class; metrological tests; thermometer marking; thermometer construction; GOST 28498-90.

FAQ

Q: What is this standard?

A: GOST 28498-90 is an interstate standard that defined general technical requirements and test methods for liquid-in-glass thermometers (glass thermometers filled with mercury or other liquids).

Q: What does it cover?

A: It covers design and materials, scale and graduation, permissible errors and accuracy classes, marking and packaging, and prescribes type and routine test methods (thermal, hermeticity, mechanical checks and calibration comparisons).

Q: Who typically uses it?

A: Manufacturers, calibration and testing laboratories, procurement specialists for laboratory and meteorological equipment, and standards/regulatory bodies. It is commonly cited in technical specifications and procurement documents for glass thermometers.

Q: Is it current or superseded?

A: The standard is no longer current in many official catalogs and has been withdrawn/superseded in practice; catalog entries show its term of validity ended and that later international/regional standards (for example national adoptions of EN/ISO standards) have taken precedence in many applications. Check national standards repositories for the exact current normative document in your country or sector.

Q: Is it part of a series?

A: It is part of the family of standards addressing temperature-measuring instruments and laboratory glassware and references several ISO standards (ISO 386, ISO 1770, ISO 1771) and other GOSTs related to glassware and thermometers.

Q: What are the key keywords?

A: liquid-in-glass thermometer, glass thermometer, mercury thermometer, alcohol thermometer, accuracy class, metrological tests, scale graduation, GOST 28498-90.