GOST 7338-90 PDF

Full title and description

GOST 7338-90 — "Rubber and rubber‑fabric sheets. Specifications". The standard establishes technical requirements, classification and application rules for vulcanized rubber sheets and rubber‑fabric sheets used for gaskets, pads, anti‑friction overlays and other non‑sealing rubber technical articles.

Abstract

This standard (approved 1990, effective from 1 July 1991) defines product types, climatic designations, mechanical and physical property limits, allowable constructions (single and multi‑layer rubber and fabric‑reinforced sheets), and marking/acceptance rules for technical rubber sheets intended for sealing of static joints, prevention of metal‑to‑metal contact, absorption of single impact loads and use as pads and linings. It includes normative references to related test and material standards.

General information

• Status: Active (interstate GOST in force; originally introduced 1991; replaces GOST 7338-77).
• Publication date: Approved 1990; put into effect 1 July 1991.
• Publisher: State standard authority (Gosstandart / interstate standard; developed by the Ministry of Chemical and Oil‑Refining Industry of the USSR).
• ICS / categories: ICS 83.140.99 (rubber products / technical rubber).
• Edition / version: Designation year 1990 (GOST 7338-90); later amendments recorded (amendment No.1, 1997).
• Number of pages: Typical published text: approximately 4 pages (official excerpt/technical text).

Scope

Applies to vulcanized rubber and rubber‑fabric sheets intended for manufacture of rubber‑technical items used to seal static connections, prevent friction between metal surfaces, accept single impact loads, and serve as gaskets, pads and other non‑sealing products. The standard covers both plain rubber sheets and fabric‑reinforced sheets, multiple climatic versions (per GOST 15150) and specifies permitted media, service‑temperature ranges and application constraints.

Key topics and requirements

• Classification of sheets by type (rubber vs rubber‑fabric) and by application groups (examples: TMKShch — heat/chemical/cold resistant; MBS — oil‑ and benzine‑resistant; AMS — atmospheric/oil resistant).
• Two product classes with recommended thickness/use ranges (first class for higher load sealing, second class for lower load and thicker items).
• Mechanical property limits (tensile strength, elongation at break, tear resistance, Shore hardness) and maximum allowed changes after exposure to specified media and temperatures.
• Construction rules for fabric reinforcement (limit on number of fabric plies relative to sheet thickness — e.g., not more than one fabric layer per 2 mm of material unless agreed).
• Climatic designations and operational temperature classes aligned with GOST 15150; marking, acceptance and test methods reference other GOST test standards.

Typical use and users

Used by manufacturers and suppliers of rubber technical products (gaskets, seals, pads, linings), OEMs in machinery, oil & gas, petrochemical, transport and construction sectors, service and repair workshops that require standardized rubber sheets for static sealing, vibration damping and protective overlays. Distributors and buyers sourcing technical plates to GOST specification also rely on this standard.

Related standards

References and related documents include GOST 15150 (climatic designations), previous edition GOST 7338-77 (replaced), and a number of material and test standards cited in the normative references (examples: GOST 305 for diesel fuel tests, GOST 2084 for gasoline, and various GOSTs for test methods and chemical exposures). See the normative references list in the standard for the full set.

Keywords

GOST 7338-90, rubber sheets, rubber‑fabric sheets, technical rubber plate, TMKShch, MBS, AMS, gasket material, teхпластина, sealing, vibration damping, GOST 15150.

FAQ

Q: What is this standard?

A: GOST 7338-90 is an interstate (GOST) standard titled "Rubber and rubber‑fabric sheets. Specifications" that sets technical requirements, classification and test/acceptance rules for vulcanized rubber and fabric‑reinforced rubber sheets.

Q: What does it cover?

A: It covers product types (rubber and rubber‑fabric sheets), mechanical and physical property limits, climatic and service categories, permitted media and construction rules (including fabric ply limits), marking and acceptance procedures.

Q: Who typically uses it?

A: Sheet and gasket manufacturers, component suppliers, engineering departments in oil & gas, petrochemical, transport and construction industries, and procurement specialists who require standardized technical rubber sheets.

Q: Is it current or superseded?

A: GOST 7338-90 replaced the earlier GOST 7338-77 and has been maintained as the operative text (with recorded amendments). Check national standards catalogs for the latest status or any newer replacements in a given country.

Q: Is it part of a series?

A: It belongs to the family of standards covering rubber technical products and references many complementary GOSTs (test methods, material specifications and climatic designations). It is typically used together with those referenced standards when specifying or testing rubber sheets.

Q: What are the key keywords?

A: Rubber sheets, rubber‑fabric sheets, technical plate, TMKShch, MBS, AMS, gasket material, GOST 7338-90, sealing, teхпластина.