AS 3788-2024 PDF

Full title and description

AS/NZS 3788:2024 — Pressure equipment — In-service inspection. Specifies minimum requirements for the in-service inspection and fitness-for-service assessment of pressure and associated equipment throughout their operational life, including commissioning, repairs, modifications, re‑rating and disposal.

Abstract

AS/NZS 3788:2024 sets out principles and mandatory requirements for planning, conducting, recording and managing in‑service inspections of pressure equipment and associated systems. It covers inspection strategies (time‑based and risk‑based), inspection intervals and scope, inspection body and personnel responsibilities, non‑destructive testing methods, pressure‑relief device handling and testing, preservation of out‑of‑service equipment, and special cases such as buried or heritage vessels. The standard is intended to help owners, inspection bodies and regulators ensure safe, economic and auditable operation of pressure plant.

General information

• Status: Current (active edition).
• Publication date: 28 June 2024.
• Publisher: Standards Australia / Standards New Zealand (AS/NZS designation).
• ICS / categories: 23.020 (Fluid storage devices) — 23.020.30 Pressure vessels; related to 27.060.30 (Boilers and heat exchangers).
• Edition / version: Fourth edition — AS/NZS 3788:2024.
• Number of pages: 172 pages.

Scope

This standard specifies minimum requirements for in‑service inspection and fitness‑for‑service of pressure equipment and associated items manufactured to any recognised standard. It applies to all stages of equipment life from commissioning until disposal and covers boilers, pressure vessels, heat exchangers, pressure piping, transportable vessels, pressure‑relief devices and related controls and instrumentation. It addresses selection of inspection strategy, determination of inspection intervals and scope, required inspection techniques and acceptance criteria, documentation and responsibilities of owners and inspection bodies.

Key topics and requirements

• Inspection strategies: time‑based and risk‑based approaches and requirements for adopting risk‑based inspection (RBI).
• Determination of inspection intervals and first-in‑service inspection timing.
• Inspection scope and methods: visual, thickness monitoring, radiography, ultrasonic (including PAUT/TOFD), magnetic particle, penetrant, infrared thermography and other NDE methods.
• Requirements for inspection planning, documentation, reporting and record keeping.
• Roles and responsibilities: owner, inspection body, inspector qualifications and competence.
• Pressure‑relief devices: commissioning, in‑service checks, testing, handling, maintenance and reporting.
• Special equipment and situations: fired heaters, buried/mounded equipment, low‑temperature vessels, transportable and heritage vessels.
• Repair, alteration and re‑rating procedures and post‑repair testing requirements.
• Preservation, monitoring and commissioning of equipment not in use.
• Guidance on acceptance criteria, allowable deferral of inspections and optimization of inspection programmes.

Typical use and users

Used by plant owners and operators, inspection bodies and third‑party inspectors, mechanical and inspection engineers, maintenance and reliability teams, regulators and safety officers. Typical applications include statutory in‑service inspections, periodic fitness‑for‑service assessments, inspection program development and optimization, qualification of inspection personnel and preparation of inspection reports and registers.

Related standards

Commonly used alongside other pressure‑equipment standards such as AS/NZS 1200 (Pressure equipment), AS 1210 (Pressure vessels), AS 1228 (Boilers), AS 1271 (Safety valves and fittings), AS 4343 (Hazard levels), AS 1796 (Qualification of welders and inspectors) and relevant NDE standards and regulatory guidance for workplace safety and plant registration.

Keywords

Pressure equipment, in‑service inspection, fitness for service, inspection intervals, risk‑based inspection, pressure vessels, boilers, heat exchangers, pressure piping, non‑destructive testing, pressure‑relief devices, inspection body, inspector competence, maintenance, preservation.

FAQ

Q: What is this standard?

A: AS/NZS 3788:2024 is the Australian/New Zealand standard that specifies minimum requirements for in‑service inspection and fitness‑for‑service of pressure and associated equipment.

Q: What does it cover?

A: It covers inspection strategy selection, inspection intervals and scope, inspection methods (visual and NDE), inspection planning and reporting, responsibilities of owners and inspection bodies, handling and testing of pressure‑relief devices, preservation of out‑of‑service equipment, repairs and re‑rating, and special cases such as buried or heritage vessels.

Q: Who typically uses it?

A: Plant owners and operators, accredited inspection bodies, mechanical and inspection engineers, maintenance/reliability teams, safety and compliance officers, and regulators who oversee statutory inspection regimes.

Q: Is it current or superseded?

A: The 2024 edition is the current active edition. It supersedes the previous edition (AS/NZS 3788:2006 with later revisions).

Q: Is it part of a series?

A: Yes. It is part of the family of pressure‑equipment standards and is typically used alongside AS/NZS 1200, AS 1210, AS 1228, AS 1271, AS 4343 and related NDE and welding qualification standards.

Q: What are the key keywords?

A: Pressure equipment, in‑service inspection, fitness for service, risk‑based inspection, NDT, pressure vessels, boilers, inspection intervals, pressure‑relief devices.