| | Yes | No |
|---|
| 1. Construction and equipment |
| 1.1 | Chlorine room | | |
| 1.1.1 | In 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).
| [_] | [_] |
| 1.1.2 | The 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). | [_] | [_] |
| 1.1.4 | The chlorine room is isolated from other rooms by fire-resistant and gas-impermeable
materials (Section 4.4.6.1).
| [_] | [_] |
| 1.1.5 | The chlorine room does not have vents (Section 4.4.6.1).
| [_] | [_] |
| 1.1.6 | Measures have been taken to ensure that the temperature in the chlorine room cannot fall below 15° C (Section 4.4.6.1).
| [_] | [_] |
| 1.1.7 | Measures have been taken to ensure that the surface temperature of the chlorine gas cylinders does not exceed 50° C (Section 4.4.6.1).
| [_] | [_] |
| 1.1.8 | No 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. |
| 1.1.9 | Measures 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. |
| 1.1.10 | The 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.
| [_] | [_] |
| 1.1.11 | If 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).
| [_] | [_] |
| 1.1.12 | The chlorine room is equipped with a chlorine gas sensor (Section 4.4.6.1).
| [_] | [_] |
| 1.2 | Exit | | |
| 1.2.1 | The chlorine room has one door leading directly to the outdoors (Section 4.4.6.1).
| [_] | [_] |
| 1.2.2 | The door of the chlorine room opens outwards (Section 4.4.6.1). | [_] | [_] |
| 1.2.3 | Entry to the chlorine room is restricted to authorised persons, for example by means
of a lock (Section 4.4.1).
| [_] | [_] |
| 1.2.4 | The door to the chlorine room can be opened from the inside at all times without a
key (Section 4.4.6.1).
| [_] | [_] |
| 1.2.5 | The door to the chlorine room does not have vents (Section 4.4.6.1).
| [_] | [_] |
| 1.2.6 | The 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 | | |
| 1.3.1 | The chlorine room is equipped with an effective chlorine gas disposal unit (Section 4.4.6.1).
| [_] | [_] |
| 1.3.2 | The chlorine gas disposal unit is automatically activated by a chlorine gas alarm
system if a chlorine gas leak occurs (Section 4.4.6.1).
| [_] | [_] |
| 1.3.3 | In addition, the chlorine gas disposal unit can be activated manually from outside
of the chlorine room (Section 4.4.6.1).
| [_] | [_] |
| 1.3.4 | If 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).
| [_] | [_] |
| 1.3.5 | The 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 | | |
| 1.4.1 | The 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).
| [_] | [_] |
| 1.4.2 | Chlorine 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. |
| 1.4.3 | If 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 | | |
| 1.5.1 | Each chlorine gas cylinder is secured individually to prevent toppling (Section 5.8).
| [_] | [_] |
| 1.5.2 | Chlorine gas cylinders are labelled to indicate their content and filling level ("empty"
or "full") (Section 5.8).
| [_] | [_] |
| 1.5.3 | If not in use, the valves on the chlorine cylinders are closed with a lock nut and
protective cap (Section 5.8).
| [_] | [_] |
| 1.5.4 | If 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.
|
| 1.5.5 | The 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).
| [_] | [_] |
| 1.5.6 | Suitable safety devices (emergency equipment) for sealing leaking valves are available
(Section 5.8).
| [_] | [_] |
| 2. Operation |
| 2.1 | Trained staff and operating instructions | | |
| 2.1.1 | Only trained staff have access to the chlorine room and operate the chlorine gas system
(Section 5.2).
| [_] | [_] |
| 2.1.2 | Operating instructions are available and posted in an accessible place (Section 5.3).
| [_] | [_] |
| 2.1.3 | New seals are installed when exchanging chlorine gas cylinders. The tightness of the
seals is tested using a testing reagent (ammonium solution) (Section 5.7).
| [_] | [_] |
| 2.1.4 | An updated emergency response plan for chlorine gas is available (Section 5.3).
| [_] | [_] |
| 2.1.5 | Emergency drills are regularly carried out based on the emergency response plan (Section 5.10).
| [_] | [_] |
| 2.2 | Personal protective equipment | | |
| 2.2.1 | Adequate 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. |
| 2.2.2 | A replacement filter is available for every breathing apparatus (Section 5.14).
| [_] | [_] |
| 2.2.3 | Filters are replaced before the end of the permissible storage period (Section 5.14).
| [_] | [_] |
| 2.2.4 | The date of opening is written on the filter. The filter is replaced 6 months after
opening at the latest (Section 5.14).
| [_] | [_] |
| 2.2.5 | Staff receive hands-on safety training in the use of breathing apparatuses each year
(Section 5.14).
| [_] | [_] |
| 2.2.6 | Breathing apparatuses are easily accessible outside of the chlorine room and stored
in a dust and moisture-free environment (Section 5.14).
| [_] | [_] |
| 3. Inspection |
| 3.1 | The chlorine gas system was inspected by a qualified person prior to first use (Section
14, Operational Safety Ordinance (BetrSichV)).
| [_] | [_] |
| 3.2 | The 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. |
| 3.3 | The 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. |
| 3.4 | The water trap in the floor drain is inspected weekly (Section 7.1). | [_] | [_] |
