ISO 7211-6-2020 PDF

Full title and description

Textiles — Methods for analysis of woven fabrics construction — Part 6: Determination of the mass of warp and weft per unit area of fabric (ISO 7211-6:2020). This part specifies methods for determining the mass of the warp and weft threads per unit area of a woven fabric after removal of any non-fibrous matter.

Abstract

The standard defines one or more laboratory procedures for preparing fabric specimens, removing non‑fibrous matter and determining the mass contribution of warp and weft yarns expressed per unit area of fabric. Results are intended for use in fabric construction analysis, material characterization and quality control.

General information

• Status: Published.
• Publication date: April 2020 (Edition 2, 2020-04).
• Publisher: International Organization for Standardization (ISO), prepared by ISO/TC 38/SC 24.
• ICS / categories: 59.080.30 (Textile fabrics).
• Edition / version: Edition 2 (2020).
• Number of pages: 4 (published brief technical method).

Scope

This part of ISO 7211 specifies methods for determining the mass per unit area of the warp and of the weft yarns removed from a woven fabric, after elimination of any non‑fibrous material. It is limited to the analysis procedure (specimen selection, dissection, cleaning if required, weighing and calculation) used to separate and report warp and weft mass contributions.

Key topics and requirements

• Definitions and specimen preparation for dissection of warp and weft threads.
• Removal of non‑fibrous matter prior to mass determination.
• Weighing procedures and calculation of mass per unit area for warp and weft (reporting in g/m² or equivalent).
• Instructions for reporting results and any limitations or applicability notes.
• Relationship to earlier edition (supersedes ISO 7211‑6:1984) and alignment with other parts of ISO 7211 series for comprehensive fabric construction analysis.

Typical use and users

Used by textile testing laboratories, fabric manufacturers, material development and R&D teams, quality control departments and standards bodies to quantify the mass contribution of warp and weft yarns for construction analysis, quality assessment and specification compliance. The procedures are applied where separate warp/weft mass data are required for design, performance prediction or certification.

Related standards

ISO 7211 is a multi‑part series on methods for analysis of woven fabric construction. Closely related parts include ISO 7211‑2 (determination of number of threads per unit length), ISO 7211‑3 (determination of crimp of yarn in fabric), ISO 7211‑4 (determination of twist in yarn removed from fabric) and ISO 7211‑5 (determination of linear density of yarn removed from fabric). These parts together provide complementary measurements for complete fabric construction analysis.

Keywords

textiles; woven fabrics; warp; weft; mass per unit area; yarn analysis; fabric construction; ISO 7211; textile testing; ISO/TC 38/SC 24.

FAQ

Q: What is this standard?

A: ISO 7211‑6:2020 is an ISO standard that specifies laboratory methods to determine the mass of warp and weft threads per unit area of woven fabrics after removal of non‑fibrous matter.

Q: What does it cover?

A: It covers specimen selection and preparation, removal of non‑fibrous matter (if necessary), dissection of warp and weft, weighing and calculation procedures to report the mass contribution of warp and weft yarns (typically expressed per unit area).

Q: Who typically uses it?

A: Textile test laboratories, fabric manufacturers, R&D and quality assurance teams, and anyone needing separate warp/weft mass data for construction analysis or specification purposes.

Q: Is it current or superseded?

A: ISO 7211‑6:2020 (Edition 2, published April 2020) is the current published edition and it supersedes ISO 7211‑6:1984. The ISO record shows the 2020 edition as published and the 1984 edition withdrawn.

Q: Is it part of a series?

A: Yes — it is Part 6 of the ISO 7211 series (Methods for analysis of woven fabrics construction). Other parts (for example Parts 2, 3, 4 and 5) cover complementary measurements such as thread count, crimp, twist and linear density.

Q: What are the key keywords?

A: Warp, weft, mass per unit area, woven fabric, yarn removal, fabric construction, textile testing, ISO 7211.