DGUV Information 207-023e - Check list for chlorination systems using chlorine g...

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Abschnitt 1, Check list for chlorination systems using chlor...
Abschnitt 1
Check list for chlorination systems using chlorine gas and chlorine rooms in swimming pool facilities (DGUV Information 207-023)
Titel: Check list for chlorination systems using chlorine gas and chlorine rooms in swimming pool facilities (DGUV Information 207-023)
Normgeber: Bund
Amtliche Abkürzung: DGUV Information 207-023
Gliederungs-Nr.: [keine Angabe]
Normtyp: Satzung

Abschnitt 1 – Check list for chlorination systems using chlorine gas and chlorine rooms in swimming pool facilities

   Yes No
1. Construction and equipment
1.1 Chlorine room   
1.1.1In the exit area, the floor of the chlorine room is not lower than the level of the adjacent premises and not above the level of a loading ramp (Section 4.4.6.1).[_][_]
1.1.2The chlorine room does not contain any equipment other than that required to operate the chlorination system (Section 4.4.6.1).[_][_]
1.1.3 The chlorine room is not accessible from any other room (Section 4.4.6.1). [_][_]
1.1.4The chlorine room is isolated from other rooms by fire-resistant and gas-impermeable materials (Section 4.4.6.1).[_][_]
1.1.5The chlorine room does not have vents (Section 4.4.6.1).[_][_]
1.1.6Measures have been taken to ensure that the temperature in the chlorine room cannot fall below 15 C (Section 4.4.6.1).[_][_]
1.1.7Measures have been taken to ensure that the surface temperature of the chlorine gas cylinders does not exceed 50 C (Section 4.4.6.1).[_][_]
1.1.8No lower lying rooms, pits, shafts or canals are located outside on the grounds in the safety zone around the door leading into the chlorine room (Section 4.4.6.1).[_][_]
Note: The safety zone should have a length of five meters. A distance of 3 meters is sufficient if the contents of only one 50-kg or 65-kg chlorine gas cylinder could leak at any given time.
1.1.9Measures have been taken to prevent chlorine gas from entering fresh air inlets (Section 4.4.6.1). [_][_]
Note: This requires a larger safety zone; its size is to be determined based on the conditions at the site.
1.1.10The chlorine room has been designated in compliance with ASR A1.3 (Health and safety labelling) as specified in Annex 1 of DGUV Regel 107-001.[_][_]
1.1.11If the room is equipped with a chlorine gas disposal unit with a sprinkler system, electrical installations are protected against the splashing of water - IP rating x4 (Section 4.4.6.1).[_][_]
1.1.12The chlorine room is equipped with a chlorine gas sensor (Section 4.4.6.1).[_][_]
1.2 Exit   
1.2.1The chlorine room has one door leading directly to the outdoors (Section 4.4.6.1).[_][_]
1.2.2The door of the chlorine room opens outwards (Section 4.4.6.1). [_][_]
1.2.3Entry to the chlorine room is restricted to authorised persons, for example by means of a lock (Section 4.4.1).[_][_]
1.2.4The door to the chlorine room can be opened from the inside at all times without a key (Section 4.4.6.1).[_][_]
1.2.5The door to the chlorine room does not have vents (Section 4.4.6.1).[_][_]
1.2.6The door to the chlorine room is not in the immediate vicinity of emergency and escape routes (Section 4.4.6.1).[_][_]
1.3 Chlorine gas disposal unit   
1.3.1The chlorine room is equipped with an effective chlorine gas disposal unit (Section 4.4.6.1).[_][_]
1.3.2The chlorine gas disposal unit is automatically activated by a chlorine gas alarm system if a chlorine gas leak occurs (Section 4.4.6.1).[_][_]
1.3.3In addition, the chlorine gas disposal unit can be activated manually from outside of the chlorine room (Section 4.4.6.1).[_][_]
1.3.4If a sprinkler system is located inside the chlorine room, the room must be outfitted with adequate floor drainage including an odour trap (Section 4.4.6.1).[_][_]
1.3.5The sprinkler system includes a sufficient number of spray nozzles in the ceiling and around the door.[_][_]
Note: A spray of water is produced by the spray nozzles at a spray angle of about 120 and with a mean drop size of less than 0.8 mm.
In general, the sprinkler system should produce about 2 m3 of water per hour and room. The amount of water produced must be at least double for systems with chlorine gas cylinders > 65 kg (Section 4.4.6.1).
1.4 Chlorine gas alarm system   
1.4.1The chlorine gas alarm system provides an audible signal to warn of a chlorine gas leak at 2.5 ppm at the latest (Section 4.4.6.1).[_][_]
1.4.2Chlorine gas leaks at concentrations of 5 ppm to maximally 20 ppm activate warning lights (outside of the chlorine room) and audible alarms (Section 4.4.6.1).[_][_]
Note: During operations, the alarm signals must be perceptible by a trained person at all times.
1.4.3If the contents of more than one gas cylinder could leak at any given time or the chlorine room is located in a structurally unfavourable location, the alarm signals are transmitted to a 24/7 response desk (Section 4.4.6.1).[_][_]
1.5 Cylinders, lines and other equipment   
1.5.1Each chlorine gas cylinder is secured individually to prevent toppling (Section 5.8).[_][_]
1.5.2Chlorine gas cylinders are labelled to indicate their content and filling level ("empty" or "full") (Section 5.8).[_][_]
1.5.3If not in use, the valves on the chlorine cylinders are closed with a lock nut and protective cap (Section 5.8).[_][_]
1.5.4If the flow of water to be chlorinated is interrupted or shut down, the chlorine gas feed automatically shuts off (Section 4.4.5).[_][_]
Note: A safety device such as a flow monitor has been installed in the pure water and sample water lines.
1.5.5The discharge pipe of the pressure relief valve leads to an adsorption unit in the chlorine room. An additional vacuum safety valve has been installed in the vacuum pipe downstream of the pressure relief valve with the adsorption unit in the chlorine room (DIN 19606).[_][_]
1.5.6Suitable safety devices (emergency equipment) for sealing leaking valves are available (Section 5.8).[_][_]
2. Operation
2.1 Trained staff and operating instructions   
2.1.1Only trained staff have access to the chlorine room and operate the chlorine gas system (Section 5.2).[_][_]
2.1.2Operating instructions are available and posted in an accessible place (Section 5.3).[_][_]
2.1.3New seals are installed when exchanging chlorine gas cylinders. The tightness of the seals is tested using a testing reagent (ammonium solution) (Section 5.7).[_][_]
2.1.4An updated emergency response plan for chlorine gas is available (Section 5.3).[_][_]
2.1.5Emergency drills are regularly carried out based on the emergency response plan (Section 5.10).[_][_]
2.2 Personal protective equipment   
2.2.1Adequate breathing apparatuses (full-face masks with B2P2 combined filters or powered filtering devices) are worn when exchanging chlorine gas cylinders (Section 5.14).[_][_]
Note: Breathing apparatuses are to be inspected by qualified persons at regular intervals.
2.2.2A replacement filter is available for every breathing apparatus (Section 5.14).[_][_]
2.2.3Filters are replaced before the end of the permissible storage period (Section 5.14).[_][_]
2.2.4The date of opening is written on the filter. The filter is replaced 6 months after opening at the latest (Section 5.14).[_][_]
2.2.5Staff receive hands-on safety training in the use of breathing apparatuses each year (Section 5.14).[_][_]
2.2.6Breathing apparatuses are easily accessible outside of the chlorine room and stored in a dust and moisture-free environment (Section 5.14).[_][_]
3. Inspection
3.1The chlorine gas system was inspected by a qualified person prior to first use (Section 14, Operational Safety Ordinance (BetrSichV)).[_][_]
3.2The chlorine gas system and the chlorine gas alarm system are regularly inspected by a qualified person and prior to each restarting (Section 7). [_][_]
Note: An inspection interval of 12 months has proven to be effective.
3.3The chlorine gas disposal unit with the sprinkler system is regularly inspected to ensure it is in working order (Section 7).[_][_]
Note: An inspection interval of 6 months has proven to be effective.
3.4The water trap in the floor drain is inspected weekly (Section 7.1). [_][_]

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