ISO 1958-1973 PDF

Full title and description

ISO 1958:1973 — Textile floor coverings — Determination of mass of total pile yarn per unit area. This short international standard specifies a laboratory procedure for measuring the mass of pile yarn in textile floor coverings (pile carpets and similar products) expressed as mass of yarn per unit area.

Abstract

ISO 1958:1973 provided a concise test method to determine the total mass of pile yarn contained in a unit area of textile floor coverings. Intended for use as part of physical testing and product specification, the standard described specimen selection, preparation and calculation procedures to report pile yarn mass (typically in g/m2). The standard was short (2 pages) and later withdrawn and replaced by a more comprehensive method in ISO 8543.

General information

• Status: Withdrawn (withdrawal recorded; replacement available).
• Publication date: September 1973.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 97.150 — Textile floor coverings.
• Edition / version: Edition 1 (1973).
• Number of pages: 2.

Scope

This standard specified a laboratory procedure to determine the mass of total pile yarn per unit area in textile floor coverings (pile carpets and related products). It covered specimen selection and preparation, the measurement technique and the calculation/reporting of results; it did not attempt to address other physical properties such as pile height, pile density by count, or fibre content. The concise method was designed for routine quality control and comparative testing prior to being superseded by a later, broader standard.

Key topics and requirements

• Definition of specimen selection and orientation for pile yarn mass measurement.
• Procedure for extracting or otherwise isolating pile yarn mass representative of a unit area.
• Calculation and expression of results as mass per unit area (commonly g/m²).
• Short-form reporting requirements suitable for product specifications and quality control records.
• Basic accuracy/precision notes appropriate for a 2‑page procedural standard (detailed uncertainty assessment not included in this edition).

Typical use and users

Users included textile floor covering manufacturers, laboratory technicians in carpet testing houses, product development engineers, quality control personnel and standards committees that needed a uniform method to quantify pile yarn mass for specification, acceptance testing and comparative purposes. Test laboratories used the procedure for routine checks and for correlating material usage with end-product weight. After withdrawal, users migrated to the successor standard for more comprehensive test coverage.

Related standards

ISO 1958:1973 was withdrawn and its function was taken over by ISO 8543 (1986), which provided an updated and broader method for related measurements of pile mass/density in textile floor coverings. Other nearby standards dealing with specimen selection and pile properties include ISO 1957 and ISO 1959 (standards in the same series addressing specimen cutting and pile density/volume ratio), though users should consult the current ISO catalogue for the active, consolidated methods.

Keywords

textile floor coverings, pile yarn mass, carpet testing, mass per unit area, pile density, ISO 1958, ISO 8543, quality control

FAQ

Q: What is this standard?

A: ISO 1958:1973 is an international standard titled "Textile floor coverings — Determination of mass of total pile yarn per unit area" that defined a short laboratory method to measure pile yarn mass in carpets and similar floor coverings.

Q: What does it cover?

A: It covers specimen selection, measurement procedure and calculation for reporting the total mass of pile yarn per unit area (e.g., g/m²). It focused specifically on pile yarn mass rather than broader carpet physical properties.

Q: Who typically uses it?

A: Carpet and textile floor-covering manufacturers, independent test laboratories, product developers and quality-control staff used the method for production checks and specification verification. Standards bodies and committees referenced it when harmonizing test procedures.

Q: Is it current or superseded?

A: It has been withdrawn. A newer, more comprehensive method is available in ISO 8543 (published 1986), which superseded ISO 1958's function; users should apply the current active standard for testing.

Q: Is it part of a series?

A: Yes — ISO 1958 sits among a group of ISO documents addressing textile floor coverings and pile/ specimen testing (for example, ISO 1957 and ISO 1959 historically addressed related specimen selection and pile-density topics). Over time these methods have been reviewed and consolidated into later standards.

Q: What are the key keywords?

A: Carpet, textile floor coverings, pile yarn, mass per unit area, g/m², pile density, test method, ISO 1958, ISO 8543.