PREN 772-22 : DRAFT 2017
Current
The latest, up-to-date edition.
METHODS OF TEST FOR MASONRY UNITS - PART 22: DETERMINATION OF FREEZE/THAW RESISTANCE OF CLAY MASONRY UNITS
28-11-2017
European foreword
1 Scope
2 Normative references
3 Principle
4 Apparatus
5 Materials
6 Preparation of Specimens
7 Construction of a test panel
8 Procedure of freezing and thawing
9 Evaluation of results
10 Test report
Annex A (informative) - Heat flow meter
Annex B (normative) - Calibration - Measurement
of rate of spray water
Annex C (normative) - Calibration - Measurement
of heat transfer rate
Defines a method for determining the freeze/thaw resistance of clay masonry units that are declared by the manufacturer as meeting the requirements for U units and as suitable to be subjected to severe (F2) exposure.
| Committee |
TC 125
|
| DocumentType |
Draft
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Standards | Relationship |
| 17/30351890 DC : DRAFT NOV 2017 | Identical |
| NEN EN 772-22 : DRAFT 2017 | Identical |
| 17/30351890 DC : 0 | Identical |
| DIN EN 772-22:2019-02 | Identical |
| 99/109559 DC : DRAFT DEC 1999 | Identical |
| DIN EN 772-22:2017-12 (Draft) | Identical |
| EN 772-21:2011 | Methods of test for masonry units - Part 21: Determination of water absorption of clay and calcium silicate masonry units by cold water absorption |
| EN 771-1:2011+A1:2015 | Specification for masonry units - Part 1: Clay masonry units |