EN ISO 20088-2:2020

Determination of the resistance to cryogenic spill of insulation materials - Part 2: Vapour exposure (ISO 20088-2:2020)

This document describes a method for determining the resistance of Cryogenic Spill Protection (CSP) systems to vapour generated from a cryogenic liquid release where the liquid content is practically zero. It is applicable where CSP systems are installed on carbon steel.
The test provided in this document is not applicable to high pressure cryogenic liquid releases that can be found in refrigeration circuits and in LNG streams immediately post-liquefaction.

Bestimmung der Beständigkeit von Isoliermaterialien bei kryogenem Auslaufen - Teil 2: Dampfbelastung (ISO 20088-2:2020)

Dieses Dokument beschreibt ein Verfahren zur Bestimmung des Widerstands von CSP-Systemen (Schutz gegen kryogenen Auslauf, en: cryogenic spill protection) gegen Dampf, der aus einer Freisetzung einer kryogenen Flüssigkeit entsteht, wobei der Flüssigkeitsgehalt praktisch null ist. Es ist anwendbar, wenn CSP-Systeme auf Kohlenstoffstahl installiert sind.
Die Freisetzung von Flüssigkeitsstrahlen kann durch Freisetzung von verflüssigtem Erdgas (LNG, en: Liquified Natural Gas) aus Prozessanlagen, die unter Druck stehen, entstehen, z. B. nutzen einige Verflüssigungsprozesse einen Betriebsdruck von 40 – 60 bar. Jedoch wird in bestimmten Abständen vom Freisetzungspunkt erwartet, dass der Flüssigkeitsanteil so abnimmt, dass eine Flüssigkeitskühlung im Strom praktisch keine Auswirkung hat.
Es sollte beachtet werden, dass es bei dieser Prüfung nicht praktikabel ist, den gesamten Bereich der unter realen Anlagenbedingungen auftretenden kryogenen Prozessbedingungen abzudecken; insbesondere deckt die Prüfung keine Freisetzungen von kryogenen Hochdruckflüssigkeiten ab, die in Kühlkreisläufen und in LNG-Strömen unmittelbar nach der Verflüssigung vorzufinden sind.
Als kryogenes Medium wird flüssiger Stickstoff (LN2) genutzt, da das Material bei den in dieser Norm beschriebenen Drücken sicher gehandhabt werden kann.
ISO 20088-1 deckt die Freisetzung von kryogenen Flüssigkeiten ab, die bei durch CSP geschützten Stahlarbeiten zu einer Flüssigkeitsansammlung führen können. ISO 20088-3 deckt strahlförmige Freisetzungsbedingungen ab, unter denen im Strom Flüssigkeit vorherrschend ist.

Détermination de la résistance des matériaux d'isolation thermique suite à un refroidissement cryogénique - Partie 2: Phase vapeur (ISO 20088-2:2020)

Le présent document décrit une méthode pour déterminer la résistance de systèmes de protection contre la fuite cryogénique (CSP) à la vapeur générée par une émission de liquide cryogénique dont la teneur en liquide est quasi-nulle. Cette méthode s'applique quand des systèmes CSP sont installés sur de l'acier au carbone.
L'essai fourni dans ce document ne couvre pas les émissions de liquide cryogénique sous haute pression que l'on peut trouver dans les circuits de réfrigération et dans les courants de GNL immédiatement après la liquéfaction.

Ugotavljanje obstojnosti izolacijskih materialov pri puščanju v kriogenem območju - 2. del: Izpostavljenost pari (ISO 20088-2:2020)

General Information

• Status: Published
• Publication Date: 31-Mar-2020
• Withdrawal Date: 30-Oct-2020
• ICS: 75.200 - Petroleum products and natural gas handling equipment
• Technical Committee: CEN/TC 282 - Installation and equipment for LNG
• Drafting Committee: CEN/TC 282 - Installation and equipment for LNG
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 01-Apr-2020
• Completion Date: 01-Apr-2020
• Ref Project: SIST EN ISO 20088-2:2020 - Determination of the resistance to cryogenic spill of insulation materials - Part 2: Vapour exposure (ISO 20088-2:2020)

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2020
Ugotavljanje obstojnosti izolacijskih materialov pri puščanju v kriogenem območju
- 2. del: Izpostavljenost pari (ISO 20088-2:2020)
Determination of the resistance to cryogenic spill of insulation materials - Part 2: Vapour
exposure (ISO 20088-2:2020)
Bestimmung der Beständigkeit von Isoliermaterialien bei kryogenem Auslaufen - Teil 2:
Dampfphase (ISO 20088-2:2020)
Détermination de la résistance des matériaux d'isolation thermique suite à un
refroidissement cryogénique - Partie 2: Phase vapeur (ISO 20088-2:2020)
Ta slovenski standard je istoveten z: EN ISO 20088-2:2020
ICS:
75.200 Oprema za skladiščenje Petroleum products and
nafte, naftnih proizvodov in natural gas handling
zemeljskega plina equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 20088-2
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2020
EUROPÄISCHE NORM
ICS 75.200
English Version
Determination of the resistance to cryogenic spill of
insulation materials - Part 2: Vapour exposure (ISO 20088-
2:2020)
Détermination de la résistance des matériaux Bestimmung der Beständigkeit von Isoliermaterialien
d'isolation thermique suite à un refroidissement bei kryogenem Auslaufen - Teil 2: Dampfphase (ISO
cryogénique - Partie 2: Phase vapeur (ISO 20088- 20088-2:2020)
2:2020)
This European Standard was approved by CEN on 31 March 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20088-2:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 20088-2:2020) has been prepared by Technical Committee ISO/TC 67/SC 9
"Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries"
in collaboration with Technical Committee CEN/TC 282 “Installation and equipment for LNG” the
secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by October 2020, and conflicting national standards shall
be withdrawn at the latest by October 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 20088-2:2020 has been approved by CEN as EN ISO 20088-2:2020 without any
modification.
INTERNATIONAL ISO
STANDARD 20088-2
First edition
2020-01
Determination of the resistance
to cryogenic spill of insulation
materials —
Part 2:
Vapour exposure
Détermination de la résistance des matériaux d'isolation thermique
suite à un refroidissement cryogénique —
Partie 2: Phase vapeur
Reference number
ISO 20088-2:2020(E)
©
ISO 2020
ISO 20088-2:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 20088-2:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test configurations . 2
5 Construction of the test apparatus and substrates . 2
5.1 Apparatus . 2
5.2 Materials and tolerances . 3
5.3 Release nozzle. 3
5.3.1 Nozzle construction . 3
5.3.2 Nozzle position . 4
5.4 Test assembly supports . 4
5.5 Test specimen and recirculation chamber . 4
6 Cryogenic spill protection materials . 5
6.1 General . 5
6.2 Wet applied coating systems . 6
6.3 Preformed system testing . 6
7 Instrumentation for test specimens . 6
7.1 General . 6
7.2 Thermocouple location . 6
8 Test environment . 7
9 Test procedure . 7
10 Repeatability and reproducibility . 8
11 Uncertainty of measurement . 8
12 Test report . 8
13 Practical applications of test results . 9
13.1 General . 9
13.2 Performance criteria .10
13.2.1 General.10
13.2.2 Coatings and spray-applied materials — Substrate temperature .10
13.2.3 Systems and assemblies .10
13.3 Factors affecting the validity of the test .11
13.3.1 General.11
13.3.2 Failure at nozzle .11
13.3.3 Failure of thermocouples . .11
Annex A (normative) Methods for fixing thermocouples .12
Annex B (informative) Classification .13
Bibliography .15
ISO 20088-2:2020(E)
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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1
...