ISO 16322-2-2021 PDF

Full title and description

ISO 16322-2:2021 — Textiles — Determination of spirality after laundering — Part 2: Woven and knitted fabrics. This second-edition international standard specifies test procedures to measure spirality (torque) of woven and knitted textile materials after domestic laundering, and is intended for use in textile testing and quality assessment.

Abstract

This document specifies three procedures (diagonal marking, inverted‑T marking and mock‑garment marking) to measure the spirality or torque of woven and knitted fabrics after domestic laundering. It notes that results from different procedures may not always be comparable and that the standard is intended to measure spirality after laundering rather than spirality as manufactured. The procedures include sample marking, specified laundering conditions and measurement/reporting requirements.

General information

• Status: Published.
• Publication date: 20 April 2021 (second edition, 2021).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 59.080.01 (Textiles in general).
• Edition / version: Edition 2 (2021).
• Number of pages: 13 pages.

Scope

ISO 16322-2:2021 specifies three test procedures — diagonal marking, inverted‑T marking and mock‑garment marking — for determining the spirality (torque) of woven and knitted fabrics after domestic laundering. The document is intended to assess spirality changes caused by laundering; it is not designed to measure spirality as produced on the fabric manufacturing line. Results produced by the different procedures may not be directly comparable and the standard includes guidance on sample preparation, laundering conditions and reporting of results.

Key topics and requirements

• Defined test procedures: diagonal marking, inverted‑T marking and mock‑garment marking for measuring post‑wash spirality.
• Specification of domestic laundering conditions (washing cycles) used for the test.
• Instructions for sample marking, mounting and dimensional measurement before and after laundering.
• Calculation and expression of spirality/torque results and reporting format, including limits of comparability between methods.
• Notes on applicability and limitations (e.g., some constructions such as denim or circular‑knit fabrics may show inherent spirality unrelated to laundering).

Typical use and users

Used by textile test laboratories, garment and fabric manufacturers, quality control teams, product development/R&D groups and conformity assessment bodies to quantify spirality changes after consumer/domestic laundering. It is also used by standards committees and educators as a reference method for comparing fabric behavior after wash cycles.

Related standards

ISO 16322 is a multi‑part series. Part 1 (ISO 16322-1:2005) addresses percentage of wale spirality change in knitted garments and remains the companion document in the series; the 2021 publication of Part 2 replaces the earlier ISO 16322-2:2005 (and its corrigendum). Other textile testing and care‑labelling standards (for laundering conditions and related test methods) are often used alongside ISO 16322 series methods for comprehensive evaluation.

Keywords

spirality; spirality after laundering; torque; diagonal marking; inverted‑T marking; mock‑garment marking; woven fabrics; knitted fabrics; textile testing; laundering; ISO 16322-2:2021.

FAQ

Q: What is this standard?

A: ISO 16322-2:2021 is an international standard that specifies test procedures to measure the spirality (torque) of woven and knitted fabrics after domestic laundering.

Q: What does it cover?

A: It covers three measurement procedures (diagonal marking, inverted‑T marking and mock‑garment marking), required laundering/sample preparation, measurement and reporting rules, and notes on limitations and comparability of results between methods.

Q: Who typically uses it?

A: Textile test labs, fabric and garment manufacturers, quality assurance and R&D teams, conformity assessment bodies and standards developers use this standard to evaluate post‑wash spirality behavior.

Q: Is it current or superseded?

A: Current — ISO 16322-2:2021 (second edition) was published in 2021 and supersedes the earlier ISO 16322-2:2005 (including its corrigendum).

Q: Is it part of a series?

A: Yes — it is Part 2 of the ISO 16322 series. Part 1 (ISO 16322-1:2005) addresses percentage of wale spirality change in knitted garments and serves as the companion part covering knitted‑garment measurement methods.

Q: What are the key keywords?

A: spirality, spirality after laundering, torque, diagonal marking, inverted‑T, mock‑garment, woven fabrics, knitted fabrics, textile testing, laundering.