Page 213 - water-controls-for-healthcare

Certifications /

WHAT IS THE NF MARK? THE NF MARK IS TO BE FOUND
ON WHAT PRODUCTS?

The NF Mark affixed on a product attests that the latter complies The NF Mark is affixed on the following products:
with the relevant standards and with complementary technical
specifications requested by the market, where appropriate. • SANITARY WATER CONTROLS
- single taps and mixer taps;
• SANITARY WATER CONTROLS - mechanical mixer taps;
The characteristics are specified in the technical documents, - thermostatic mixing valves;
prepared with the participation of the manufacturers, the distributors, - flow rate regulators;
the consumer associations, the laboratories and the public authorities, - shower outlets for sanitary tapware;
fixed by AFNOR Certification and monitored by the "Centre - extractable handsprays for sink and washbasin mixer taps;
Scientifique et Technique du Bâtiment" (CSTB) (Scientific and - shower hoses for sanitary tapware;
Technical Building Centre). - waste fittings;
CSTB carries out tests on the products and the audits - automatic shut-off valves;
on the companies as part of this application. - stop valves mounted:
- upstream from sanitary tapware;
- on a WC flushing cistern;
WHAT DOES THE NF MARK ACCORD? - to supply a washing machine;
- multiway selector;
- automatic diverter, Family H, type C;
> Sanitary water controls - electronic opening and closing valve,
The NF Mark - SANITARY TAPWARE certifies the compliance of and specifies the ratings for some of them.
products with the certification reference system approved
by AFNOR Certification. In particular, this guarantees: ECAU/EChAU classification for mechanical mixers:
There are 4 basic characteristics and the letters E A U have
> For thermostatic mixers the same meaning as for the other mixers (see table below).
- quality of the surface covering; The letters C or Ch (comfort, water and energy savings) correspond
- interchangeability of valves; to the specific parameters of the products (dimensions, effort
- tightness before and after endurance test; to operate and water saving systems). The letter C refers to
- intercommunication between cold water and hot water; the domestic sector, whereas Ch refers to non-domestic (retirement
- flow rates appropriate to the application; homes, care homes, non-healthcare etc.).
- behaviour when adjusted;
- adjustment precision; E 00 4 lpm ≤ Q < 6 lpm
- adjustment sensitivity;
- mixed water temperature stability depending upon: E 0 9 lpm ≤ Q < 12 lpm
- flow rate variation; E 1 12 lpm ≤ Q < 16 lpm
- pressure variation; Flow rate Q lpm E 2 16 lpm ≤ Q < 20 lpm
- hot water temperature variation; E measured
- accuracy; at 3 bar E 3 20 lpm ≤ Q < 25.2 lpm
- safety: cold water shut-off and efficiency of the limit stop; E 4 25.2 lpm ≤ Q
- mechanical performances;
- wear resistance for the control devices; The minimum rating for bath mixers is E3
- acoustic performances.
Comfort Type C 1 Dimensions, effort to operate
C or Ch
> For mechanical mixers C 2 Water saving features
- quality of the surface covering; A 1 20 dB (A) < Lap ≤ 30 dB (A)
- interchangeability of mixer taps; Sound level Lap
- tightness before and after endurance test; A dB (A) A 2 15dB (A) < Lap ≤ 20 dB (A)
- intercommunication between cold water and hot water; A 3 Lap ≤ 15 dB (A)
- flow rates appropriate to the application; Movable obturation mechanism:
- use comfort depending on the sensitivity, 70,000 cycles
the precision and the temperature constancy; U 1 Mobile nozzle: 80,000 cycles
- mechanical performances; Bath-shower diverter: 30,000 cycles
- wear resistance for the control devices;
- acoustic performances. Wear Movable obturation mechanism:
characteristics No. of U 2 122,500 cycles
U cycles Mobile nozzle: 140,000 cycles
Bath-shower diverter: 50,000 cycles
Movable obturation mechanism:
175,000 cycles
U 3 Mobile nozzle: 200,000 cycles
Bath-shower diverter: 80,000 cycles

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