I.S. EN 744:1995
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
PLASTICS PIPING AND DUCTING SYSTEMS - THERMOPLASTICS PIPES - TEST METHOD FOR RESISTANCE TO EXTERNAL BLOWS BY THE ROUND-THE-CLOCK METHOD
Hardcopy , PDF
05-11-2017
English
01-01-1995
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.
Dates of withdrawal of national standards are available from NSAI.
Committees responsible
National foreword
Method
Foreword
1 Scope
2 Definition
3 Principle
4 Apparatus
5 Test pieces
6 Conditioning
7 Procedure
8 Expression of results
9 Test report
Annex
A (informative) Evaluation of results from isolated
batches
Tables
1 Dimensions for the nose of the striker
2 Mass of strikers
3 Number of equidistant lines to be drawn on the
test pieces
4 Conditioning periods
5 Expression of TIR at 10% depending on the number of
blows and failures
Figures
1 Typical falling weight testing machine
2 dimensions of strikers
3 Number of test pieces for 10% TIR (at 90% confidence
level)
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