I.S. EN 12308:1999
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
INSTALLATIONS AND EQUIPMENT FOR LNG - SUITABILITY TESTING OF GASKETS DESIGNED FOR FLANGED JOINTS USED ON LNG PIPING
Hardcopy , PDF
13-05-2021
English
01-01-1999
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
1 Scope
2 Normative References
3 Definitions
3.1 liquefied natural gas (LNG)
3.2 DN (nominal diameter)
3.3 PN (nominal pressure)
3.4 NPS
3.5 Class
3.6 Class of pressure
3.7 Ps (allowable pressure)
3.8 Required bolting load Fa
4 Design specifications of tested gaskets
5 Technical documentation by the gasket manufacturer
6 Check of compatibility between bolting load and
mechanical strength of joint components
6.1 Compatibility with flanges
6.2 Compatibility with bolting
7 Means and equipment required for testing
7.1 Test rig
7.2 Measuring equipment
8 Testing
8.1 Application of bolting load
8.2 Leak testing at ambient temperature
8.3 Leak testing at cold temperature
9 Acceptance criterion
10 Test report
Annex A (informative) Thermo-mechanical behaviour of a
flanged joint with gasket
Annex B (informative) Test rig
Annex C (normative) Method for verifying the bolting load
Annex D (normative) DN equivalence for tests
Annex E (normative) PN equivalence for tests
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.