ISO 22688-2020 PDF

Full title and description

St ISO 22688-2020 — Brazing — Quality requirements for brazing of metallic materials. This International Standard specifies quality requirements and selection criteria for brazing processes used on metallic materials in manufacturing and on-site installation, and defines two levels of quality requirements to be applied according to product, application and risk class.

Abstract

ISO 22688:2020 defines two levels of quality requirements and selection criteria for brazing of metallic materials. It provides complete sets of requirements for process control related to listed brazing processes (separately or in combination), identifies the related documents and records needed to conform with the requirements, and is intended for use by manufacturers alone or together with a quality management system such as ISO 9001. The standard is applicable to brazing performed in workshops and at installation sites.

General information

• Status: Published.
• Publication date: April 2020 (Edition 1, 2020-04 / publication entries commonly cited as 15 April 2020).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.160.01 (Welding, brazing and soldering in general).
• Edition / version: Edition 1 (ISO 22688:2020).
• Number of pages: 28 (official ISO publication length).

Scope

ISO 22688:2020 applies to the brazing of metallic materials and specifies two selectable levels of quality requirements and the criteria for choosing between them. It covers process control, qualification of procedures and personnel, inspection and testing, documentation and records, and requirements applicable both in manufacturing workshops and on installation sites. The standard is intended to be used by manufacturers either as a standalone set of quality requirements or in conjunction with a broader quality management system (e.g., ISO 9001) and is positioned as complementary to the ISO 3834 series for fusion welding quality requirements.

Key topics and requirements

• Definition of two levels of quality requirements and selection criteria to match product risk and complexity.
• Process-control requirements for listed brazing processes (e.g., torch, furnace, induction, resistance, vacuum, dip-flux, salt-bath) either individually or in combination.
• Qualification and approval of brazing procedures and instructions, including joint design and filler material selection.
• Qualification, training and competence requirements for brazing personnel and supervisors.
• Inspection and testing requirements (visual, dimensional, non‑destructive or destructive where specified) and acceptance criteria for brazed joints.
• Requirements for documentation, traceability, records, nonconforming product control and corrective actions.
• Provisions for on-site brazing and for brazing performed in production workshops, including control of environmental and process variables.

Typical use and users

Used by manufacturers, fabricators and assemblers who perform brazing operations; quality managers and engineers writing procurement or acceptance specifications; inspection and certification bodies assessing brazing quality systems; contractors performing on-site brazing; and organizations that wish to align brazing quality control with recognized international requirements. It is also referenced by purchasers and regulators seeking documented quality assurance for brazed assemblies.

Related standards

Commonly used alongside or referenced with: the ISO 3834 series (quality requirements for fusion welding), standards and technical recommendations from IIW on brazing practice, and applicable product- or industry-specific standards that define mechanical, pressure or safety requirements for brazed assemblies. National or industry documents on brazing procedures, filler metals and testing methods are also typically used in support of ISO 22688 conformity.

Keywords

brazing, hard soldering, quality requirements, process control, brazing procedures, qualification, inspection, testing, metallic materials, ISO 22688

FAQ

Q: What is this standard?

A: ISO 22688:2020 is an International Standard that specifies quality requirements and selection criteria for brazing of metallic materials, providing structured levels of requirements to suit different product/application risk levels.

Q: What does it cover?

A: It covers process control for various brazing methods, qualification of procedures and personnel, inspection and testing, documentation and record-keeping, and requirements for brazing both in workshops and on installation sites.

Q: Who typically uses it?

A: Manufacturers, fabricators, quality and welding engineers, certification bodies, contractors performing on-site brazing, and procurement/specification writers who need to set or verify brazing quality requirements.

Q: Is it current or superseded?

A: ISO 22688:2020 is the current edition published in 2020 (Edition 1). As with all ISO standards, it is subject to periodic review (typically every five years) and users should check for updates or amendments when planning conformity activities.

Q: Is it part of a series?

A: It is a standalone ISO standard specifically for brazing quality requirements but is complementary to the ISO 3834 series (fusion welding quality requirements) and to other IIW/industry technical documents covering brazing practices and testing.

Q: What are the key keywords?

A: Brazing, hard soldering, quality requirements, process control, qualification, inspection, testing, metallic materials, ISO 22688.