EN 274-2-2002 pdf download.Waste fittings for sanitary appliances – Part 2 : Test methods.
This EN 274-2 specifies test methods for the requirements of waste outlets, traps and overflows in accordance with
EN 274-1:2002.
NOTE All figures in this standard are ciiagrammahc only.
2 Normative references
This European Standard incorporates by dated or undated reference, povisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments),
EN 274-1:2002. Waste fittings for sanitary appliances — Part 1: Requirements.
3 Temperature cycling test
Waste outlets and traps shall be subjected to the passage of hot and cold water according to the following schedule for 5 cycles:
a) Xl/s of water of a temperature of 95 °C over a period of 15 mm at a constant flowrate and
b) X L/s of water of a temperature of (20 ±5) °C over a period of 10 mm at a constant flowrate.
The value of X is the minimum flow rate as given in Table 3 of EN 274-1:2002, but with a maximum of 0,5 [/s.
The water shall enter the waste outlet having the required temperature.
A drainage period between cycles of up to 5 s is permissible.
• The waste fitting to be tested shall be fitted to the test tank, which is preferably made of transparent material (see Figure 2). II in the case of waste outlets fitted with:
• a plug. it is removed:
• a flap, it is adjusted to obtain the maximum lift, however it has to be tight when closed.
• Fill the test tank with water up to the test level as follows:
• test level C = (120 ± 2) mm for waste outlets and traps for basins, bidets, shower trays and kitchen sinks;
test level U = (300 ±2) mm for waste outlets and traps for baths.
The outlet is blocked by hand until the test level is reached.
• Stabilize the test level by adjusting the water inflow by means of a regulating valve.
The flow rate of the waste outlets and traps is the flow rate indicated by the flowmeter. when the test water level C or U is stabilized.
5.2 Flow rate of waste outlet
The flow rate of waste outlet is tested using a flow stabilizing tube as shown in Figure 3. The flow rate stabilization tube has an internal diameter of
30 mm for waste outlets for basins and bidets;
• 36 mm for waste outlets for shower trays, baths and kitchen sinks. Proceed in accordance with 5.1.
5.3 Flow rate of waste outlet with a trap
The flow rate of waste outlet with a trap is tested with the waste outlet and trap fixed as shown in Figure 4. If an overflow is fitted, it shall be open.
When a waste fitting with a horizontal outlet does not have a straight part of a minimum length of 50 mm, a horizontal stabilizing tube. 300 mm long, shall be attached to it. The diameter of the stabilizing tube shall correspond to that of the waste fitting outlet.
EN 274-2:2002 (E)
In the case of waste fitting with adjustable outlet angles the outlet pipe shall be positioned in a horizontal plane. Proceed in accordance with 5.1.
– Close the waste outlet at the inside of test lank and fill the test tank with water up to the test level above the centre line of the overflow opening.
• (60 ±2) mm for baths and shower trays,
• (30 ± 2) mm for kitchen sinks, wash basins and bidets.
Stabilize this overflow level in accordance with Figure 2 by adjusting the water inflow by means of a regulating valve.
– The flow rate of the overflow is the flow rate indicated by the flowmeter, when the water level is stable at the required level.
6 Leaktightness
6.1 Leaktightness of waste outlet with plug or flap
– Fit the waste outlet to the bottom of the test tank (see Figure 2) with the plug in position or the flap closed.
– Fill the test tank with water to a height of 120 mm and collect any water, which flows past the waste outlet flap or plug during a period of 1 h.
• Measure the quantity of water collected.
6.2 Leaktightness of traps
– Subject all trap parts and connections (see Figure 8) to a water pressure of 0,01 MPa (0,1 bar) for a period of 5 mm.
For traps which have been subjected to a temperature cycling test, the leaktightness shall be tested immediately after the test.EN 274-2-2002 pdf download.