UNE-EN ISO 20088-3-2019 PDF

Full title and description

STB UNE-EN ISO 20088-3:2019 — Determination of the resistance to cryogenic spillage of insulation materials — Part 3: Jet release. This document specifies a laboratory test method to evaluate the resistance of cryogenic spill protection (CSP) systems and insulation materials on carbon steel to a pressurised cryogenic jet (representative simulation using liquid nitrogen).

Abstract

This part of ISO 20088 describes a method for determining the resistance of cryogenic spill protection (CSP) systems to a cryogenic jet that results from a pressurised release without immersion. The test uses liquid nitrogen as the cryogenic medium (nominal test pressure ~8 barg) and is intended to be representative of certain LNG jet-release scenarios (for small orifices and limited release pressures). The method is applicable where CSP systems are installed on carbon steel and will be in contact with cryogenic fluids.

General information

• Status: Published / National adoption endorsed (UNE-EN ISO adoption).
• Publication date: ISO edition published November 2018; UNE-EN/UNE national adoption endorsed 2019.
• Publisher: ISO (International Organization for Standardization); national adoption/endorsement by Asociación Española de Normalización (UNE/AENOR) where designated as UNE-EN ISO 20088-3:2019.
• ICS / categories: 75.200 — Equipment for handling petroleum products and natural gas (cryogenic / LNG handling equipment).
• Edition / version: ISO 20088-3:2018 (Edition 1); EN/UNE adoption published in 2019 (UNE-EN ISO 20088-3:2019).
• Number of pages: ISO published edition: 23 pages (national publications may show slightly different pagination).

Key bibliographic details above are taken from the ISO international publication and the UNE/EN national adoption records.

Scope

The standard defines a controlled laboratory procedure to assess the resistance of thermal insulation and cryogenic spill protection systems to a liquid jet produced by a pressurised cryogenic release. It is intended for CSP systems on carbon steel and for test conditions representative of low-to-moderate pressure jet releases (the test uses liquid nitrogen and nominally 8 barg test pressure to simulate certain LNG jet scenarios). The test does not attempt to cover the full range of cryogenic process conditions (in particular it does not cover very high‑pressure refrigeration circuits or immediate post‑liquefaction high‑pressure LNG streams).

Key topics and requirements

• Definition of a jet‑release test method to simulate cryogenic liquid jets impacting insulated carbon‑steel substrates.
• Use of liquid nitrogen as the test medium (chosen for safe handling and lower boiling point relative to LNG/oxygen scenarios).
• Specified test geometry and orifice sizing (representative simulation for orifices up to ~20 mm and release pressures within the method’s limits).
• Nominal test pressure and dynamic pressure considerations (test nominally run at ~8 barg; method gives rationale for representativeness to certain LNG conditions).
• Evaluation criteria for damage/acceptance of cryogenic spill protection and insulation materials after jet exposure.
• Limitations and informative notes describing conditions not covered (high‑pressure refrigeration circuits, very large orifice releases, etc.).

These technical points and constraints are described in the ISO text and accompanying national adoption documents.

Typical use and users

Typical users include offshore and onshore LNG plant engineers, cryogenic insulation manufacturers, materials testing laboratories, third‑party certifying bodies, and asset owners/operators managing cryogenic piping, storage and transfer systems. The standard is used to establish test evidence of CSP performance, to compare materials/coatings, and to support specification and procurement of insulation systems where cryogenic liquid jet exposure is a credible hazard.

Related standards

ISO 20088 is a multi‑part series. ISO 20088-1 and ISO 20088-2 cover other release scenarios (pooling / immersion and vapour‑phase exposures) and are published as companion parts; EN/UNE adoptions exist for the series where applicable. The wider body of LNG/cryogenic handling standards and relevant national CEN/EN adoptions should also be consulted when specifying CSP systems.

Keywords

cryogenic spillage; cryogenic jet; insulation materials; cryogenic spill protection (CSP); LNG; liquid nitrogen; jet release test; thermal insulation; carbon steel substrate; test method.

FAQ

Q: What is this standard?

A: It is ISO 20088‑3 (published as ISO 20088‑3:2018) — a test method for determining the resistance of insulation and cryogenic spill protection systems to a cryogenic liquid jet. It is also available as national/adopted versions (e.g., UNE‑EN ISO 20088‑3:2019).

Q: What does it cover?

A: The standard covers a laboratory procedure simulating a pressurised cryogenic jet (using liquid nitrogen) impacting CSP/insulation on carbon steel; it sets out test configuration, test conditions, observation and evaluation criteria, and the method’s limitations.

Q: Who typically uses it?

A: Engineers and specifiers for LNG and cryogenic facilities, insulation and coating manufacturers, test laboratories, and conformity assessment bodies use the standard to assess material/system resistance to jet releases and to support procurement and acceptance criteria.

Q: Is it current or superseded?

A: The ISO part was published in November 2018 (ISO 20088‑3:2018) and was adopted under EN/UNE in 2019. As published by ISO it is an active/confirmed international standard; national adoptions (UNE/EN) show endorsement dates in 2019. Users should check their national standards body for the most current national status or any later revisions.

Q: Is it part of a series?

A: Yes — ISO 20088 is a multipart series addressing cryogenic spillage effects on insulation and structures; Part 1 and Part 2 cover other exposure scenarios (pooling/immersion and vapour‑phase exposure) and are referenced as companion parts in the Part 3 text.

Q: What are the key keywords?

A: cryogenic spillage, jet release, insulation resistance, CSP, LNG, liquid nitrogen, test method, carbon steel.