GOST 7377-85 PDF

Full title and description

GOST 7377-85 — "Бумага для гофрирования. Технические условия" / "Paper for corrugating. Specifications". National standard specifying technical requirements, test methods, marking, packaging and acceptance rules for paper intended for the production of corrugated (fluting) layers in corrugated board.

Abstract

GOST 7377-85 defines grades, physical and mechanical characteristics, dimensional and packaging requirements, sampling and acceptance procedures, and laboratory test methods for fluting (corrugating) paper used in corrugated cardboard manufacture. It sets limits for grammage, compression and puncture resistance, tensile and bursting properties, moisture content and water absorption (Cobb), and describes conditioning and sample preparation for tests.

General information

• Status: Withdrawn / not in force (canceled and later superseded by national updates).
• Publication date: Approved 13 December 1985; effective 1 January 1987; canceled / registration closed 25 December 2008.
• Publisher: USSR State Committee for Standards (Gosstandart); later superseded in the Russian system by standards published under Rosstandart (for example GOST R 53206-2008).
• ICS / categories: 85.060 — Paper and cardboard (Pulp and paper industry).
• Edition / version: GOST 7377-85 (1985 edition, with later amendments issued during its lifetime).
• Number of pages: Approximately 7 pages (original document concise technical specification).

Scope

This standard applies to paper manufactured specifically for use as the corrugated (fluting) medium in corrugated board. It covers types and grades (examples: B-0, B-1, B-2, B-3, in glued and non-glued variants), required physical and mechanical properties by grade, roll dimensions and tolerances, packaging, marking, storage and transportation rules, sampling and acceptance procedures, and referenced test methods.

Key topics and requirements

• Definition of product grades (grammage classes) and glued (K) vs non-glued (NK) variants.
• Limits for grammage (g/m²) for each grade and allowable tolerances.
• Mechanical property requirements: resistance to flat compression of corrugated sample (SMT), end-crush resistance (SCT), puncture (penetration) resistance, bursting strength, and tensile strength in the machine direction.
• Water absorption / surface absorption (Cobb method) limits for glued and unglued papers where specified.
• Moisture content requirement and permissible deviations.
• Roll dimensions and tolerances (width, outer diameter, core diameters) with consumer agreement options.
• Sampling, testing and acceptance rules (conditioning of samples, number of determinations, rounding rules) referencing established GOST test methods.
• Packaging, marking, transport and storage requirements specific to corrugating paper (including allowed roll end protection and banding practices).
• Criteria for classification to second grade and allowable internal defects limits.

Typical use and users

Primary users are paper mills producing fluting paper, manufacturers of corrugated board and packaging converters, quality control and testing laboratories, procurement and specification engineers in packaging supply chains, and regulatory/standards specialists assessing material conformity and legacy documentation.

Related standards

Commonly referenced and related standards include test and normative documents for paper and board: GOST 13199 (grammage/mass per unit area), GOST 13525 series (tensile, bursting, moisture, defect measurement), GOST 20682 (flat crush testing for corrugated materials), GOST 12605 (Cobb water absorption), GOST 7691 (cardboard — marking/packaging) and later national standard GOST R 53206-2008 which updates/specifies corrugating paper requirements in the modern Russian system. International references (for specific test methods) include ISO/IEC references used within GOST norms where indicated.

Keywords

corrugating paper; fluting; fluting paper; grammage; Cobb; flat crush; end crush (SCT); bursting strength; tensile strength; roll dimensions; packaging; GOST; paper for corrugation.

FAQ

Q: What is this standard?

A: GOST 7377-85 is a former Soviet national standard titled "Paper for corrugating. Specifications" that set technical requirements and test procedures for paper used as the corrugated (fluting) layer in corrugated board.

Q: What does it cover?

A: It covers product grades, required mechanical and physical properties (grammage, compression, puncture, bursting and tensile properties), water absorption and moisture limits, roll sizes, packaging/marking, sampling and acceptance rules, and references to test methods.

Q: Who typically uses it?

A: Paper producers, corrugated board and packaging manufacturers, QC and test laboratories, procurement/specification engineers, and standards/technical compliance teams examining legacy specifications or historical product requirements.

Q: Is it current or superseded?

A: It is not current — GOST 7377-85 has been withdrawn (canceled in the Russian system) and its subject has been covered by later national standards (for example GOST R 53206-2008 and other modern technical documents). Users should consult the current national or industry standard in force for up-to-date requirements.

Q: Is it part of a series?

A: It belongs to the family of paper and board standards within the 85 series (pulp and paper industry) and references several related GOST test methods and specifications (GOST 13199, GOST 13525.x, GOST 20682, etc.). It replaces earlier national editions and was later superseded by updated GOST/GOST R documents for corrugating paper.

Q: What are the key keywords?

A: corrugating paper, fluting, grammage, flat crush (SMT), end crush (SCT), bursting strength, Cobb water absorption, roll dimensions, packaging, GOST 7377-85.