ISO 3790-1976 rus PDF

Full title and description

ISO 3790:1976 — Fishing nets — Determination of elongation of netting yarns. The document specifies a laboratory test method to determine the elongation behaviour of netting yarns used in fishing nets; it is available in the original English and in national/adopted translations (Russian-language editions and national identifications such as Ст ISO 3790-1976 are reported in standards catalogues and commercial distributions).

Abstract

Specifies a method for measuring elongation of netting yarns, with tests permitted in both dry and wet states (wet tests being particularly relevant to in-use behaviour). The standard indicates suitable types of tensile-testing machines (constant-rate-of-elongation and constant-rate-of-traverse machines) and expresses a preference for constant-rate-of-elongation machines. The procedure is concise and intended for routine quality and comparative testing of netting yarns.

General information

• Status: Published (International Standard; confirmed in ISO systematic reviews).
• Publication date: July 1976 (Edition 1, 1976-07).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 65.150 (textiles; fishing nets / netting).
• Edition / version: Edition 1 (ISO 3790:1976).
• Number of pages: 4 (ISO catalogue bibliographic listing).

Scope

Applies to the determination of elongation characteristics of netting yarns used in fishing nets. The method covers sample preparation and testing in either dry or water‑immersed conditions, and identifies suitable tensile-testing equipment and general test practice to obtain comparable elongation data for quality control, specification and research. The standard is limited to yarn elongation measurement rather than full-net strength or mesh tests.

Key topics and requirements

• Test states: allows both dry and wet testing; wet-state testing is particularly appropriate for simulating in-use behaviour.
• Test equipment: permits constant-rate-of-elongation and constant-rate-of-traverse tensile machines; prefers constant-rate-of-elongation machines for consistency.
• Specimen preparation and marking: requires defined specimen length and reference marks for percent‑elongation measurements.
• Reporting: results presented as elongation values under the specified conditions (dry/wet) to support comparison and quality control.
• Related test family: complements other fishing-net test standards dealing with breaking force, knot strength and mesh breaking force.

Typical use and users

Used by fishing-net and netting-yarn manufacturers, materials and textile testing laboratories, fisheries equipment certifiers, research institutes studying net performance, and standards bodies preparing national adoptions or translations. Laboratories use the method for batch control, supplier comparison and product development. National standards organizations and commercial standards resellers also distribute translated/adopted versions.

Related standards

Standards commonly used alongside ISO 3790 include ISO 1805 (determination of breaking force and knot breaking force of netting yarns), ISO 1806 (determination of mesh breaking force of netting), and earlier/later ISO test methods addressing netting yarn dimensional changes after immersion (e.g., ISO 3090) and yarn designation (e.g., ISO 858). These documents together form a practical test library for fishing-net materials and assemblies.

Keywords

fishing nets; netting yarns; elongation; tensile test; wet testing; dry testing; constant rate of elongation; ISO 3790; textiles; net testing.

FAQ

Q: What is this standard?

A: ISO 3790:1976 is an International Standard that specifies a laboratory method for determining the elongation of netting yarns used in fishing nets (Edition 1, published July 1976).

Q: What does it cover?

A: It covers test states (dry and wet), specimen marking and elongation measurement, and describes acceptable types of tensile-testing machines (notably constant-rate-of-elongation and constant-rate-of-traverse machines) with a preference for constant-rate-of-elongation equipment. It does not replace standards that measure breaking force, mesh breaking force or knot breaking force — those are handled in related ISO documents.

Q: Who typically uses it?

A: Manufacturers of netting yarns and fishing nets, materials testing laboratories, fisheries-gear researchers, conformity assessment bodies and national standards organizations preparing translations or adoptions. Commercial standards distributors may also supply national-language copies.

Q: Is it current or superseded?

A: ISO 3790:1976 remains the published edition; ISO’s catalogue shows it as published and periodically reviewed/confirmed in ISO systematic reviews (confirmed in ISO review records). Users should check the ISO catalogue or their national standards body for the most recent confirmation or withdrawal status before relying on an edition for certification purposes.

Q: Is it part of a series?

A: It is part of a suite of ISO test methods for fishing nets and netting yarns maintained by ISO/TC 38 (Textiles). Complementary standards include ISO 1805, ISO 1806, ISO 3090 and related ISO items addressing yarn designation and other net/marine tests.

Q: What are the key keywords?

A: fishing nets; netting yarns; elongation; tensile testing; wet test; dry test; constant-rate-of-elongation; ISO 3790.