GOST 7004-93 PDF

Full title and description

GOST 7004-93 — "Целлюлоза. Отбор проб для испытаний" (English: "Pulp. Sampling for testing"). The standard specifies methods for selection and preparation of representative (average) test samples that characterize the quality of a batch of pulp delivered in bales or rolls.

Abstract

This interstate GOST establishes procedures for sampling, reduction and preparation of laboratory samples for physical and chemical tests of pulp. It is intended to ensure that test results represent the average quality of a delivery lot by defining sampling points, sample sizes, handling and preparation of composite samples. The standard was developed and adopted under the Interstate Council for Standardization, Metrology and Certification framework and entered into force at the start of 1995.

General information

• Status: Active (in force / действует).
• Publication date: Adopted 21 October 1993; introduced into force 01 January 1995.
• Publisher: Interstate standard issued under the Interstate Council for Standardization, Metrology and Certification (published as a GOST; developed with participation of Gosstandart of the Russian Federation).
• ICS / categories: Pulp and paper industry — OKS/ICS: 85.040 (pulp and related products).
• Edition / version: GOST 7004-93 (1993 edition; replaces GOST 7004-78).
• Number of pages: 8 pages.

Sources for status, dates, replacement and page count are recorded in official and registry copies of the standard.

Scope

The standard applies to all types of pulp supplied in bales or rolls and sets out the method for selecting samples from a delivery lot and for preparing an average sample for laboratory testing. It is intended for use where laboratory test results must represent the average properties of a batch (physical and chemical characteristics). The procedure covers sampling from individual bales/rolls, combining increments, sample reduction and labelling/packaging of the test sample.

Key topics and requirements

• Definitions and terms related to pulp sampling and sample representativeness.
• Sampling plan and selection points for bales and rolls (number of increments and their distribution across a lot).
• Minimum increment and composite sample sizes; methods for reducing a composite sample to a laboratory sample.
• Instructions on preparing, homogenizing and conditioning the sample for physical and chemical tests.
• Sample handling, marking, packing and documentation to preserve sample integrity until testing.
• References to related international practice (standard incorporates/aligns with ISO sampling principles where indicated).

Typical use and users

Used by pulp and paper mills, quality assurance and laboratory personnel, inspection and acceptance departments, trading companies, receivers of pulp shipments, and regulatory/standards bodies. It is applied when selecting test samples for acceptance testing, quality control, dispute resolution and certification testing of pulp consignments.

Related standards

GOST 7004-93 references or aligns with relevant international sampling practice (ISO) for pulp; it replaced the earlier national edition GOST 7004-78. Other related GOSTs and industry standards cover sampling and testing procedures for paper, board and pulp products (for example standards on sampling paper, determination methods and general pulp testing methods).

Keywords

pulp; sampling; test sample; composite sample; bales; rolls; sample preparation; quality control; laboratory sample; GOST 7004-93.

FAQ

Q: What is this standard?

A: GOST 7004-93 is an interstate (GOST) standard titled "Pulp. Sampling for testing" that defines how to select and prepare representative test samples from consignments of pulp.

Q: What does it cover?

A: It covers sampling plans, number and distribution of increments, sizes of composite and laboratory samples, sample reduction techniques, handling, marking and packaging to ensure test results reflect the lot's average quality.

Q: Who typically uses it?

A: Pulp and paper manufacturers, QA and laboratory staff, inspection bodies, buyers/sellers of pulp and certification or regulatory organizations use the standard when conducting acceptance and quality-control testing.

Q: Is it current or superseded?

A: As published it entered into force on 01 January 1995 and is listed in registries as the current GOST 7004-93 edition; it superseded GOST 7004-78. Users should check national/regional standards registries for any later revisions or replacements before relying on it for compliance decisions.

Q: Is it part of a series?

A: It is part of the set of GOST standards for the pulp and paper industry and is associated with other standards that specify sampling and test methods for paper, board and pulp products.

Q: What are the key keywords?

A: pulp, sampling, test sample, composite sample, sample preparation, bales, rolls, quality control, laboratory testing.