NS EN 978 : 1ED 1997
Current
The latest, up-to-date edition.
UNDERGROUND TANKS OF GLASS-REINFORCED PLASTICS (GRP) - DETERMINATION OF FACTOR ALPHA AND FACTOR BETA
12-01-2013
1 Scope
2 Normative references
3 Definitions
3.1 Factor a
3.2 Factor b
4 Principle
5 Apparatus
5.1 Testing machine
5.2 Four point test rig
5.3 Measuring device
5.4 Oven for post curing
5.5 Waterbath
6 Test specimens
6.1 Number of test specimens
6.2 Shape and size of test specimens
7 Procedure
7.1 Determination of the initial beam stiffness
7.2 Determination of factor a
7.3 Determination of factor b
8 Test Report
Defines a method of test for determining the factor a and factor b of test specimens of tanks of glass reinforced thermosetting resins for storing liquids underground.
| DocumentType |
Standard
|
| PublisherName |
Norwegian Standards (Norges Standardiseringsforbund)
|
| Status |
Current
|
| Standards | Relationship |
| EN 978:1997 | Identical |
| UNE-EN 978:1998 | Identical |
| DIN EN 978:1997-09 | Identical |
| UNI EN 978 : 1999 | Identical |
| BS EN 978:1997 | Identical |
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