GOST 12.4.142-84 PDF

Full title and description

GOST 12.4.142-84 — System of standards in industrial safety. Fabrics for protective clothing. Classification of dust permeability norms. The standard establishes classification and numerical limits of dust permeability for fabrics intended for special protective clothing designed to protect against non‑toxic fine dust.

Abstract

This GOST defines protection groups for fabric materials used in special protective clothing based on workplace air dustiness and specifies allowable dust‑permeability norms for each group. It references test methods for measuring dust permeability and is intended for use in the development, specification and certification of fabrics and protective garments.

General information

• Status: Active / действует.
• Publication date: Approved 27 September 1984 (Gosstandart USSR); in force from 01 January 1986.
• Publisher: Originally Gosstandart (USSR); issued as an interstate (Межгосударственный) standard and maintained in modern collections (reprints/compilations published by standards publishers and available via national standards bodies/collections).
• ICS / categories: OKS / ICS: 13.340.10 (Protective clothing). Group: T58 (system of safety standards).
• Edition / version: Designation -84 (approved 1984). Re‑issued in standards compilations (reprint noted 2003).
• Number of pages: Vendor/publication listings vary (commonly shown as 1 page in some catalogues; other reprints or vendor files list 4 pages). See vendor/catalog entries for the specific publication format.

Scope

The standard applies to finished cotton, linen, semi‑linen and blended fabrics, as well as fabrics made from special chemical fibers intended for manufacture of special protective clothing that protects against non‑toxic fine dust. It establishes dust‑permeability norms to be used when developing new fabrics and in normative documentation for specific fabric types. Determination of dust permeability is performed according to the referenced test method (GOST 17804‑72).

Key topics and requirements

• Classification of fabrics into protection groups I–IV depending on workplace air dustiness (mg/m3) and corresponding dust‑permeability limits. Typical grouping (as specified in the standard):
• Group I — air dustiness up to 30 mg/m3; fabric permeability range (higher permissible values).
• Group II — air dustiness >30 to 100 mg/m3; intermediate permeability limits.
• Group III — air dustiness >100 to 200 mg/m3; lower permeability limits.
• Group IV — air dustiness >200 mg/m3; most stringent (lowest) permeability limits.
• Reference to test method: determination of dust permeability by the method given in GOST 17804‑72.
• Requirement: the norms are to be applied in development of new fabrics and in technical specifications for specific fabric types intended for protective clothing.

Typical use and users

Textile and PPE manufacturers, product designers for special protective clothing, occupational safety and industrial hygiene specialists, testing and certification laboratories, and standards/technical documentation authors use this standard when specifying fabric selection and when certifying clothing meant to protect workers from non‑toxic fine dust exposures. The standard is also referenced in product certification lists and regulatory guidance.

Related standards

Related documents and methods referenced in or commonly used with GOST 12.4.142‑84 include GOST 17804‑72 (method for determination of dust permeability), other GOSTs in the System of Standards on Industrial Safety for special clothing (for example GOST 12.4.099‑80, GOST 12.4.100‑80, GOST 12.4.175‑88, GOST 12.4.184‑97 and later R/GOST R standards). The standard is published in compilations of the ССБТ (System of standards in industrial safety) series.

Keywords

protective clothing; fabrics; dust permeability; dust‑proof; special protective clothing; pылепроницаемость; ССБТ; GOST 12.4.142‑84.

FAQ

Q: What is this standard?

A: It is a GOST in the System of Standards on Industrial Safety that classifies dust‑permeability norms for fabrics used in special protective clothing (designation GOST 12.4.142‑84).

Q: What does it cover?

A: It covers finished cotton, linen, semi‑linen, blended and chemical‑fiber fabrics intended for special protective clothing against non‑toxic fine dust, and sets classification groups and numerical dust‑permeability norms; dust permeability is measured per GOST 17804‑72.

Q: Who typically uses it?

A: Textile and PPE manufacturers, occupational safety specialists, testing/certification labs and document authors use it for specifying materials and for certification/selection of protective clothing.

Q: Is it current or superseded?

A: The standard is listed as active (действует); its restriction of use was lifted by the interstate council and it appears in reprints/compilations (reissue noted 2003). For regulatory or certification decisions always verify the latest status with the national standards body or current normative databases.

Q: Is it part of a series?

A: Yes — it is part of the Система стандартов безопасности труда (System of standards in industrial safety) series and is linked to other GOSTs covering protective clothing, test methods and material properties.

Q: What are the key keywords?

A: Protective clothing, fabrics, dust permeability, dust protection, ССБТ, pылепроницаемость.