Textile machinery and accessories - Pitches of knitting machines

ISO 8188:2007 specifies the pitches for knitting machines used in the textile industry.

Matériel pour l'industrie textile — Pas des métiers à tricoter

General Information

Status
Published
Publication Date
10-Jul-2007
Current Stage
9599 - Withdrawal of International Standard
Start Date
25-Jun-2025
Completion Date
13-Dec-2025

Relations

Effective Date
15-Apr-2008

Overview

ISO 8188:2007 - Textile machinery and accessories - Pitches of knitting machines - is an international standard that specifies how to define, measure and designate the pitches (needle spacings) and gauges of knitting machines used across the textile industry. This second edition (2007) replaces the 1986 edition and provides standardized definitions, measurement methods and reference pitch/gauge tables for both flat and circular knitting machines.

Key topics and technical requirements

  • Definitions: Clear terms for pitch (t - distance between centres of adjacent needles) and gauge (number of needles per reference length).
  • Gauge reference systems:
    • Gauge E - number of needles per 25.4 mm.
    • Gauge F - number of needles per 25.0 mm.
  • Measurement methods:
    • Flat knitting machines - pitch determined by measuring centreline spacing of two adjacent needles in the needle carrier (needle bar/bed).
    • Circular knitting machines - pitch calculated using the formula t = (d × π) / n_max, where d is the nominal diameter (mm) and n_max is the maximum number of needles in the needle carrier.
  • Reference tables: The standard includes Tables 1 and 2 listing standard pitch-to-gauge relationships for common gauges (E and F). For circular machines, the listed values are guide values because construction-dependent deviations may occur.
  • Notation and commercial designation: Gauge is denoted as E or F plus the gauge number (e.g., E14). For circular machines, commercial references to pitch or gauge should also specify the total number of needles in the needle carrier.
  • Normative reference: ISO 7839 (Knitting machines - Vocabulary and classification) is referenced for related terms and classification.

Applications and who uses this standard

ISO 8188:2007 is intended for:

  • Knitting machine manufacturers - to design and label machines with standardized pitch/gauge data.
  • Textile engineers and technologists - for machine selection, fabric design and process setup.
  • Procurement and specification authors - to write clear equipment specifications and ensure compatibility between machines, needles and accessories.
  • Quality control and testing labs - to verify that needle spacing and gauge conform to standard values.
  • Suppliers and buyers - to communicate machine capabilities and ensure interchangeability of components.

Practical uses include machine design, spare-part compatibility checks, production planning, and accurate commercial descriptions in purchase orders.

Related standards

  • ISO 7839 - Textile machinery and accessories: Knitting machines - Vocabulary and classification (normative reference used by ISO 8188:2007).

Keywords: ISO 8188:2007, knitting machine pitch, machine gauge, needle spacing, flat knitting machines, circular knitting machines, textile machinery standard.

Standard

ISO 8188:2007 - Textile machinery and accessories -- Pitches of knitting machines

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Frequently Asked Questions

ISO 8188:2007 is a standard published by the International Organization for Standardization (ISO). Its full title is "Textile machinery and accessories - Pitches of knitting machines". This standard covers: ISO 8188:2007 specifies the pitches for knitting machines used in the textile industry.

ISO 8188:2007 specifies the pitches for knitting machines used in the textile industry.

ISO 8188:2007 is classified under the following ICS (International Classification for Standards) categories: 59.120.40 - Knitting machines. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO 8188:2007 has the following relationships with other standards: It is inter standard links to ISO 8188:1986. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase ISO 8188:2007 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of ISO standards.

Standards Content (Sample)


INTERNATIONAL ISO
STANDARD 8188
Second edition
2007-07-15
Textile machinery and accessories —
Pitches of knitting machines
Matériel pour l'industrie textile — Pas des métiers à tricoter

Reference number
©
ISO 2007
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Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 8188 was prepared by Technical Committee ISO/TC 72, Textile machinery and accessories,
Subcommittee SC 3, Machinery for fabric manufacturing including preparatory machinery and accessories.
This second edition cancels and replaces the first edition (ISO 8188:1986), which has been technically revised.

INTERNATIONAL STANDARD ISO 8188:2007(E)

Textile machinery and accessories — Pitches of knitting
machines
1 Scope
This International Standard specifies the pitches for knitting machines used in the textile industry.
2 Nor
...

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