ISO 10321-2008 PDF

Full title and description

ISO 10321:2008 — Geosynthetics — Tensile test for joints/seams by wide‑width strip method. This International Standard specifies an index tensile test method to determine the tensile properties of joints and seams in geosynthetics using a wide‑width strip specimen; procedures include testing of conditioned and wet specimens and guidance for use with geogrids and other geosynthetics where specimen dimensions may be changed to suit the product.

Abstract

ISO 10321:2008 describes a wide‑width strip tensile test for quantifying the tensile strength of seams or joints in geosynthetic materials. The method provides tensile strength results that may be compared with the tensile properties of the unjoined material (e.g., per ISO 10319) to calculate seam/joint efficiency. Test details cover specimen preparation, clamping, test speed, and handling of conditioned and wet specimens.

General information

• Status: Published / confirmed international standard.
• Publication date: April 2008 (2008‑04).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 59.080.70 (Geotextiles / Geosynthetics).
• Edition / version: Edition 2 — 2008.
• Number of pages: 10 (ISO bibliographic record; national adoptions may show different page counts due to national forewords/translations).

Scope

Specifies an index test method for determination of tensile properties of joints and seams in geosynthetics using a wide‑width strip specimen (typically 200 mm width, with provisions for joint/seam extension at the specimen edges). Applicable to most geosynthetics and to geogrids with modified specimen dimensions; not applicable to polymeric or bituminous geosynthetic barriers. Includes procedures for conditioned and wet specimens and guidance for avoiding specimen slipping or damage in grips for strong or unusual materials.

Key topics and requirements

• Index wide‑width tensile test method for joints and seams in geosynthetics (wide‑strip specimen technique).
• Specimen dimensions and preparation (basic specimen width, seam extension allowances and options for geogrids or heavy products).
• Clamping, test speed (constant rate of extension) and machine requirements to measure tensile force and elongation.
• Procedures for testing conditioned (standard environment) and wet specimens.
• Calculation of seam/joint tensile strength and of seam efficiency by comparison with wide‑width tensile results for the unjoined material (see ISO 10319 family).
• Notes and guidance on modifications needed for special materials (heavy geotextiles, meshes, glass‑fibre products) to prevent slippage or damage in grips.

Typical use and users

Used by geosynthetic manufacturers, independent testing laboratories, product specification authors, civil and geotechnical engineers, and quality‑control personnel involved in design, manufacturing and acceptance testing of geosynthetic seams and joints (e.g., seamed geotextiles, welded or stitched overlaps). Results are used for product development, acceptance testing, contract specifications and calculation of joint efficiency in design.

Related standards

Closely related to ISO 10319 (wide‑width tensile test for unjoined geosynthetics) for comparison and seam efficiency calculations; the 1992 edition of ISO 10321 was withdrawn and replaced by this 2008 edition. Other regional/national adoptions (EN/ISO variations) and comparable test methods (for example ASTM D4595 – wide‑width tensile test) are commonly referenced in practice.

Keywords

geosynthetics, geotextiles, tensile test, wide‑width strip, seam test, joint test, seam efficiency, ISO 10321, ISO 10319, tensile properties, conditioned specimens, wet specimens.

FAQ

Q: What is this standard?

A: ISO 10321:2008 is an International Standard that specifies a wide‑width strip tensile test method for determining the tensile properties of joints and seams in geosynthetic materials.

Q: What does it cover?

A: It covers specimen preparation, clamping and test procedure (constant rate of extension), measurement of tensile force/elongation, testing of conditioned and wet specimens, and calculation of seam/joint tensile strength and joint efficiency compared to unjoined material. It also notes when test modifications are needed for special materials.

Q: Who typically uses it?

A: Manufacturers of geosynthetics, materials testing laboratories, design and geotechnical engineers, quality assurance teams, and standards committees involved in geosynthetic product specification and acceptance testing.

Q: Is it current or superseded?

A: ISO 10321:2008 is the 2008 edition that replaced the 1992 edition; ISO’s bibliographic record lists the 2008 edition as the active/confirmed edition. Users should check national adoptions or ISO updates for any later revisions, but as published the 2008 edition is the replacement of the earlier 1992 version.

Q: Is it part of a series?

A: It forms part of the geosynthetics/geotextiles family of test standards (ISO/TC 221), and is most commonly used together with ISO 10319 (wide‑width tensile test for unjoined materials) when assessing seam efficiency. Other related test standards and regional/adopted versions may apply depending on project or contractual requirements.

Q: What are the key keywords?

A: geosynthetics, geotextiles, tensile test, wide‑width strip, seams, joints, seam efficiency, ISO 10321, test method.