ISO 15361-2000 PDF

Full title and description

St ISO 15361-2000 — Pulps — Determination of zero-span tensile strength, wet or dry. This International Standard specifies a laboratory test method for measuring the tensile strength of pulp laboratory sheets at essentially zero test span, applicable to sheets tested dry, rewetted or never dried.

Abstract

The standard defines the procedure for determining zero-span tensile strength of laboratory-made pulp sheets. It covers specimen preparation, apparatus and clamping, test procedure for wet and dry conditions, calculation and reporting of results, and applicability to all kinds of fibres including recycled fibres. Results provide a measure of fibre strength and fibre bonding influences under negligible span conditions.

General information

• Status: Published (confirmed through periodic review).
• Publication date: March 2000 (ISO publication 2000-03).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 85.040 (Pulp and paper technology / Testing).
• Edition / version: Edition 1 (2000).
• Number of pages: 11.

Key bibliographic and lifecycle details above are taken from the ISO catalogue entry for ISO 15361:2000 and corroborated by standards distributors.

Scope

ISO 15361:2000 specifies a method for determining the tensile strength of laboratory sheets at a test span that is essentially zero. The method is intended for laboratory sheets produced from pulps and is applicable to fibres of all types (including recycled fibres). The procedure covers testing of sheets in dry condition, after rewetting, or when never dried, and is intended to provide information on intrinsic fibre strength and bonding influences under zero-span conditions.

Key topics and requirements

• Definition and purpose of the zero-span tensile test (measure of fibre/fibre-bond contributions at negligible span).
• Specimen preparation and dimensions for laboratory sheets.
• Requirements for the testing machine, grips/clamping to achieve near-zero span and calibration checks.
• Test procedures for dry, rewetted and never-dried samples, including conditioning and handling.
• Calculation of zero-span tensile strength, expression of results and reporting requirements (units, number of replicates, test conditions).
• Notes on applicability to different fibre types including recycled fibres and on interpretation limitations.

These topics follow the procedural and reporting elements set out in the standard.

Typical use and users

Typical users include pulp and paper research laboratories, quality control and process laboratories in pulp and paper mills, academic and industrial research groups studying fibre strength and bonding, testing service laboratories, and manufacturers of testing equipment for paper and pulp. The test is used for characterising fibre strength properties, comparing pulps and process effects, and supporting product development and quality assessment.

Related standards

ISO 15361 is part of the broader set of pulp and paper testing standards maintained under ISO/TC 6. Related and commonly referenced standards include tensile property methods for paper and board (for example ISO 1924 series) and other ISO test methods for paper and tissue (such as parts of the ISO 12625 series). Users often consult these companion test methods when evaluating sheet and fibre mechanical properties.

Keywords

zero-span tensile strength, pulp, laboratory sheets, wet testing, dry testing, fibre strength, tensile test, ISO 15361, paper testing, ISO/TC 6.

FAQ

Q: What is this standard?

A: ISO 15361:2000 is an International Standard that specifies a laboratory method for determining the zero-span tensile strength of pulp laboratory sheets (wet or dry), providing a measure related to intrinsic fibre strength and bonding under negligible span conditions.

Q: What does it cover?

A: It covers specimen preparation, apparatus and grips, test procedures for dry, rewetted and never-dried sheets, calculations for expressing zero-span tensile strength, and reporting conventions. It applies to all kinds of fibres, including recycled fibres.

Q: Who typically uses it?

A: Pulp and paper laboratories (QC and R&D), testing service labs, instrument manufacturers, and researchers studying fibre properties and pulp processing effects.

Q: Is it current or superseded?

A: ISO 15361:2000 was published in March 2000 and remains a published ISO standard; it has been subject to periodic review and confirmation. Users should check the ISO catalogue or national standards bodies for the most recent status or any amendments before application.

Q: Is it part of a series?

A: It belongs to the body of pulp and paper testing methods developed under ISO/TC 6 and is commonly used alongside other ISO test methods for tensile and mechanical properties of paper (for example the ISO 1924 series) and relevant parts of the ISO 12625 series.

Q: What are the key keywords?

A: Zero-span tensile strength, pulp, laboratory handsheets, wet test, dry test, fibre strength, tensile measurement, paper testing.