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5.4 Corrosion test

Subject the framework for 36 h to a salt spray test according to iso 7253,or for 192 h to atest according to EN 12329.

5.5 Ground fastening
5.5.1 The ground tensioner and its fastening shall be taken from the tent fabric in the form of a strip having a width of 5 cm (three test specimens )The test specimen shall be clamped into a tensile testing machine ,with the tent fabric on one side and the ground tensioner on the other side . The lower fastening element is the peg which is hooked through the ground tensioner and fixed to the clamping device of the tensile testing machine.

The test is carried out in accordance with iso 13934-1 (with corresponding adjustment of the clamping )at a test velocity of 10 cm /min.Indicate the maximum force and record the type of failure .

5.5.2 The tensile strength shall be tested in accordance with ISO 2062.

5.6 Rain test

TO test the requirements of 4.2.11 ,a blank test shall first be made .

prior to the rain test ,the test tent shall be subjected to asingle rain test and allowed to dry for 24 h .

The rain test is conducted as illustrated in Figure 6.

The sprinkling installation consists of
a)two sprinklers (A and B,see Figure 6 )designed as follows :
-swivelling upto 90度 maximum .
nozzle diameter 0.11 cm
angle of sprinkling 45 度，
b)sprinkling area size 500 cm x 600 cm ,
c)water -permeable ground ,e.g.lawn.

pitch the tent in accordance with the instruction for use .Carry out the rain test with the tent closed .

Sprinkler Ashalle adjusted at such an such an angle that the foremost jet is about 20 cm in front of the tent (see Figure 6)
thetent shall first be placed with the entrance facing sprinkler A for 2 h ,then turned through aout 90度 and sprinkled for another 3 h .If further entrances of openings are proided ,they are to be placed facing sprinkler A ,if they have a different design from the first entrance .
the water pressure shall be 3bar to 4.5 bar .The water flow rate shall be 1800 I/h.
Key
1 adjustable inclination
2 swivelling
3 large tent after turning the entrance through about 90度 away from sprinkler A
4 small tent placed with entrance facing sprinkler A
a For tents having a width above 500 cm ,dimension 300is reduced ,when the wide side of the tent is placed in direction AB.


以上全部译完再加十积分共２５积分．

以下译完奖１０积分．


Figure 6- rain test

5.7 Material connection test

Testing shall be conduction test
Testing shall be conducted in accordance with ISO 13934 -2 ,with the material connection at right angles to the direction of tensile load application in the middle of tthe test sample .Breaking shall occur occuroutside the material connection .

5.8 Resistance of Plastic sheets to discolouration under the effect of moisture
The plastic sheets shall be exposed to weathering according to ISO 105 -B04 for 24 H ,afterwards ,the sample shall be stored at standard atmosphere according to ISO 554 for 24 H,A possible discolouation shall be evaluated on the basis of the grey scale for the assessment of colour changes (according to ISO 105 -A 02)

5.9 Dimmensional stability of tents in synthetic fabrics

Erect the tent after it has been immersed in water for 10 min.In cases where it is possible to change the tension and thus have different positions ,the alternative giving the most tautness shall be chosen .Reduce the relative humidity to (0 to 5)%
Since the temperature does not play a role in theses tests ,the temperature can be increased in order to achieve the lower relative humidity ,if necessary ,by directing a heat source at the tent .

If a heat source is used ,then the surface temperature of the tent shall not exceed 60 摄氏度．

６　Ｉnstructions for use
Each tent shall be accompanied by instructions for use with explanatory sketches or drawings .In particular ,these instructions shall at least contain information about the following items :
a)Trial pitching of the tent (to get used to the design )

b) Choice of the site :
-type of ground ,
- prevailing wind direction .
c) pitching/striking :
-information concerning the maring of the frame assembly,
- order of pitching /striking .
-fastening ,storm guys .
d) Behaviour in the event of fire /means of escape :
- advice to occupiers (see 4.2.19)
e) Ventilation .
f) particular problems :
-snow ,
- sandy soil ,
- storms ,
-particular environmental conditions.
g) packing :
- folding scheme,
- packing of wet tents (consequences )
- separation of frame parts and canvas .
h) Maintenance /repair :
- cleaning ,spot rmoval ,
-storage ,

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