ISO 3090-1974 rus PDF

Full title and description

ST ISO 3090-1974 (rus) — Ropes and cordage — Netting yarns — Determination of change in length after immersion in water. This short International Standard specifies a simple immersion test for measuring the change of length of netting yarn samples after immersion at a prescribed temperature; an apparatus drawing and the marking/measurement method are included.

Abstract

Immersion in water, at a given temperature, of a length of netting yarn on which two marks have been made at a prescribed distance apart; the procedure measures the change in length between the marks after immersion. A figure shows the apparatus used for determining the change in length. The original document is brief (2 pages).

General information

• Status: Withdrawn / cancelled.
• Publication date: July 1974 (Edition 1).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 65.150 (Fishing and fish breeding); 59.080.50 (Ropes).
• Edition / version: Edition 1 — 1974.
• Number of pages: 2.

Scope

This standard defines a laboratory test method to determine dimensional change (change in length) of netting yarn samples when immersed in water at a controlled temperature. It covers marking of the sample, prescribed initial gauge length, immersion conditions and measurement of the change in length; the standard also describes the simple apparatus used for the determination. The method is intended for netting yarns used in ropes, cordage and fishing nets.

Key topics and requirements

• Preparation and marking of a length of netting yarn at a prescribed initial distance between two marks.
• Immersion of the marked sample in water at a specified temperature for a specified time.
• Measurement of change in length between the two marks after immersion and calculation/reporting of the change.
• Simple apparatus described (illustrated in the standard) to ensure repeatable positioning and measurement.
• Normative context: positioned within ISO/TC 38 work on textiles, ropes and fishing gear; may have national equivalents/adoptions.

Typical use and users

Used historically by textile and rope laboratories, manufacturers of netting yarn and fishing gear, quality control teams, and standards bodies when assessing dimensional stability of netting yarns after wetting. Test method reference for product specifications, procurement and comparative laboratory testing.

Related standards

National and regional adoptions/equivalents have existed (for example NEN ISO 3090 and DIN 53845 references); standards on fishing nets, net mounting and joining, and other rope/cordage test methods (ISO/TC 38 portfolio) are related. Note that ISO 3090:1974 itself has been withdrawn and users should check for any newer or replacement methods in the ISO/TC 38 series or national standards collections.

Keywords

netting yarns, ropes, cordage, immersion test, dimensional change, wetting, fishing nets, textile testing, ISO 3090, rope testing.

FAQ

Q: What is this standard?

A: ISO 3090:1974 is an International Standard that specified a method to determine the change in length of netting yarn after immersion in water. The document is short (2 pages) and includes a figure of the test apparatus.

Q: What does it cover?

A: It covers marking and measuring a length of netting yarn, immersion at a given temperature, and measurement of length change between two prescribed marks; an apparatus for the test is illustrated. The procedure is intended for yarns used in netting, ropes and fishing gear.

Q: Who typically uses it?

A: Manufacturers and testers of netting yarns, rope and fishing-gear producers, textile testing laboratories, procurement and quality-control personnel, and standards developers concerned with rope and net performance.

Q: Is it current or superseded?

A: ISO 3090:1974 has been withdrawn. ISO’s catalogue shows the standard as withdrawn; national catalogs indicate withdrawal processing around 2004–2005 (withdrawal effective in some catalogs on 1 February 2005). Users should not rely on ISO 3090:1974 as a current active ISO requirement and should consult current ISO/TC 38 publications or national standards for up-to-date test methods.

Q: Is it part of a series?

A: It was developed under ISO/TC 38 (Textiles) and sits with other rope, cordage and fishing-net standards and test methods; related standards on net mounting/joining and other rope tests exist within the ISO/TC 38 portfolio and in national equivalents.

Q: What are the key keywords?

A: Netting yarns; immersion; change in length; ropes; cordage; fishing nets; textile testing; dimensional stability.