ISO 20088-3-2018 PDF

Full title and description

ISO 20088-3:2018 — Determination of the resistance to cryogenic spillage of insulation materials — Part 3: Jet release. Specifies a laboratory test method to evaluate how cryogenic spill protection (CSP) systems and insulation materials on carbon steel resist damage from a pressurized cryogenic jet release (representative of LNG or liquid nitrogen releases under the stated test conditions).

Abstract

This part of ISO 20088 describes a test procedure using liquid nitrogen to simulate a cryogenic jet release and measure the resistance of CSP systems and insulation materials to jet impingement (non-immersion) conditions. The test is intended to be representative of an LNG release through a 20 mm orifice (or less) at release pressures up to about 6 barg (test run at nominally 8 barg using liquid nitrogen) and highlights limitations for higher-pressure scenarios.

General information

• Status: Published (International Standard; confirmed on systematic review).
• Publication date: 22 November 2018 (2018-11).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 75.200 (petroleum and natural gas industries — cryogenic technology).
• Edition / version: Edition 1 (2018).
• Number of pages: 23.

Scope

Applies to test methods for determining the resistance of cryogenic spill protection (CSP) systems and insulation materials installed on carbon steel when exposed to a pressurized cryogenic jet (non-immersion) resulting from a release. The procedure uses liquid nitrogen as the test medium to represent LNG or liquid nitrogen jet releases under the specified orifice and pressure conditions; it does not attempt to cover all possible process conditions, and excludes high-pressure cryogenic jets such as those that may occur in refrigeration circuits or immediately post-liquefaction LNG streams.

Key topics and requirements

• Definition of a controlled laboratory test to simulate cryogenic jet impingement on CSP and insulation systems.
• Use of liquid nitrogen as the surrogate cryogenic medium; justification for representativeness versus LNG under the specified test parameters.
• Test geometry and orifice guidance — representative of releases through a maximum 20 mm orifice at release pressures up to ~6 barg (test performed nominally at 8 barg).
• Measurement criteria for damage/failure of insulation and CSP layers on carbon steel substrates.
• Limitations and exclusions: not intended for high-pressure jet regimes or immersion/pooling conditions (other parts of ISO 20088 address related scenarios).

Typical use and users

Used by materials and insulation manufacturers, third-party testing laboratories, oil & gas and LNG facility engineers, plant safety and integrity teams, and regulators assessing cryogenic spill protection performance. Typical applications include product qualification, comparative performance testing, incident investigation support, and specification of CSP systems for carbon-steel process equipment exposed to cryogenic fluids.

Related standards

ISO 20088 is a multi-part series: ISO 20088-1 and ISO 20088-2 cover other cryogenic release scenarios (pooling and vapour-phase exposure conditions respectively). The document was developed under ISO/TC 67 (materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries), subcommittee SC 9.

Keywords

cryogenic spillage, jet release, cryogenic spill protection (CSP), insulation materials, LNG, liquid nitrogen, jet impingement test, carbon steel, ISO 20088, cryogenic testing, pressure release, orifice size, test procedure.

FAQ

Q: What is this standard?

A: ISO 20088-3:2018 is an ISO international standard that specifies a laboratory method to determine the resistance of insulation materials and cryogenic spill protection systems to a pressurized cryogenic jet (non-immersion) release.

Q: What does it cover?

A: It covers a representative test method using liquid nitrogen to simulate a jet release (representative of an LNG release through a ≤20 mm orifice at up to ~6 barg) and the measurement of damage or failure of CSP/insulation on carbon steel. It explicitly does not cover high-pressure jet scenarios or immersion/pooling conditions (other parts of ISO 20088 address related scenarios).

Q: Who typically uses it?

A: Insulation and CSP product manufacturers, test houses, LNG and petrochemical plant integrity and safety engineers, and regulatory bodies responsible for equipment qualification and safety assessments.

Q: Is it current or superseded?

A: The standard was published on 22 November 2018 and was last reviewed and confirmed as current by ISO during the 2023–2024 systematic review (confirmation recorded in 2024). As published it remains the current edition.

Q: Is it part of a series?

A: Yes — ISO 20088 is published in parts. ISO 20088-1 and ISO 20088-2 address related cryogenic release scenarios (pooling and vapour-phase exposure respectively); ISO 20088-3 focuses on jet release testing.

Q: What are the key keywords?

A: Cryogenic spillage, jet release, CSP, insulation materials, LNG, liquid nitrogen, cryogenic testing, carbon steel, ISO 20088, jet impingement.