EN 950-1999 pdf download.Door leaves Determination of the resistance to hard body impact.
This EN 950 applies to all door leavei
The standard specifies the method to be used to detenuine the damage caused to a door leaf by the mpact of a hard body.
NOIE Such Impacia. that might rrwionably be expected from contact with s,uaII cilticcia or parhc of brgcr objects such as corners on fUnUture or fouwra,. can pru(kIcr local surface failures affecting both strength and appcarluwe ‘11w kind of damage catried by Impact can vaiy with the material usrd In the door CU,lNLflJCtKJfl.
2 Apparatui
2.! Supports
Rqid supports, to suppoii the longer edges of the door leaf in a stable manner, when motinled horizontally.
2.2 Impact Equipment
.4 (50 ± 1) mm dirt nwter sleet bull, of known weight,
and a4)propnate release tower.
2.3 Measuring equipment
.4 dial (cr digital gauge, accunite to 0,01 mm mounted
at 11w centre of a ii) mm long and 12 nun wide
reference bar.
A sleet ride,; accurate to 0,5 mm.
3 Test specimens
Test specimens shall be stored and tested in a non-destfllctive enviroiunent within the ranges of 15°C to 30°C and 25% to 75% relative hiunidity.
4 Procedure
Mount the (loor leaf honzonrally, with ngmd suplxnte under the long edges resting on a solid base.
Select one of the four aiming patteins showim in Figure I such that the theoretically weakest point is included, and mark the 15 impact poinis on the surface of the door leaf. Any glazed area shall be omitted from the test, thereby reducing the number of impact points.
huipart poillis In the topmost row or rows of the aiming pattern shall also be omitted where the height of the door leaf is less than 2 (XX) mm. The lest area is not extended where 11w height is niore than 2 000 mm.
Position the release tower vertically over each of the iIIIl)aCI lx)tnt_ in turn, and drop the steel ball from a height, measured from its tmdenwle to the surface of the door leaf, which eonesponds Co the required mfl)a(1 ener
Where a IenuuwnI imprint is left by any inipact. after :10 mm measure the maximum depth of the indentation to the nearest 0,1 mm, the maximum dium’ter of the ln(lefltatlon to the nearest 1,0 nun and the maxiiimiii dianieter of the cracking area to the nearest 1,0 nun.
NOTE 2 When’ inpwt!4 occur ai poinu hen’ the urfaee is uneven. e.g. aX rnouhtngs, a more g(1)CraI L e’%Hk’flI or bniage is permuted.
Repeat the procedure for tue other (ace of the door leaf only if the door eonstniction is nut synunetricaL
5 Expression of results
Record:
— the nieasw’nient of indentation depth and diameter, and the diameter of cmddng at each muI)aet point;
— calculation of the mean values and the coefficient of variation of the depths of indentations:
—- (‘alcuL’ihofl of the nwan values and the coefficient of variation of the diameters of cracks.
6 Test report
The test report shall contain the following infonnatloit a) reference to this standard;
b) all necessary details to identify the door leaf;
c) aLl relevant details concerning the type, spet’ilied dizneii.sions. materials. fonn and construction of the door leaf
d) position and size of any glazed areas omitted
from the test;
e) buiomtoty storage an(l testing (‘ofl(hhiOfls
I) the number and position of impact points used;
g) the impact energy in joules applied in the test:
h) the results expressed as in clause 5;
I) the nature of any damage;
j) name of testing laboratoiy.EN 950-1999 pdf download.