ProMinent ProMaqua Bello Zon CDLb Series User manual

Chlorine dioxide systems
Bello Zon® type CDLb with external pre-storage
vessel
Operating instructions
P_PMA_BEZ_0110_SW
CDLb 6
Original operating instructions (2006/42/EC)Part no. 985312 BA LZ 011 02/14 EN
Please carefully read these operating instructions before use! · Do not discard!
The operator shall be liable for any damage caused by installation or operating errors!
Technical changes reserved.

Read the following supplementary information in its entirety! Should you
already know this information, you will benefit more from referring to the
operating instructions.
The following are highlighted separately in the document:
nEnumerated lists
- refer to... References
Instructions
ðResults
‘User interface text’
[Keys]
Information
This provides important information relating to the correct
operation of the unit or is intended to make your work easier.
Safety notes
Safety notes are identified by pictograms - see Safety Chapter.
The chapters "Control elements", "Start up" and "Operation"
explain the setting menus in the sequence in which they
arise.
This document includes notes and quotes from German guidelines relating
to the system operator's scope of responsibility. This information does not
discharge the operator from his responsibility as an operator and is
intended only to remind him or make him aware of specific problem areas.
This information does not lay claim to being complete, nor applicable to
every country and every type of application, nor to being unconditionally
up-to-date.
The version number of the hardware and software can be found here:
Set metering to
‘OFF’ on the control ( [Start/Stop] key) .
After
[Change] has been pressed, the control switches to the Versions
display.
In case of complaints, or if expanding the scope of use of the device,
specify the version number in addition to the identity code.
Supplementary information
Fig. 1: Please read!
Notes for the System Operator
Version number of the hardware and soft‐
ware
Supplemental instructions
2

Table of contents
1Identity code.................................................................................... 5
2 About this system............................................................................ 6
3 Safety chapter................................................................................. 7
4 Storage and transport.................................................................... 12
5 System overview........................................................................... 13
6 Functional description.................................................................... 15
6.1 Chemical principle behind the systems................................. 15
6.2 System operating principle.................................................... 15
6.3 Safety equipment.................................................................. 15
7 Requirements at the installation site.............................................. 16
7.1 Requirements for the installation site.................................... 16
7.2 Requirements for the water................................................... 17
8 Assembly....................................................................................... 18
9Installation..................................................................................... 21
9.1 Installation, hydraulic............................................................. 21
9.1.1 Filter insert......................................................................... 21
9.1.2 System isolator................................................................... 22
9.1.3 Point of injection, Bello Zon® CDL...................................... 22
9.1.4 Pre-storage module............................................................ 24
9.1.5 Suction lances / suction assemblies for acid and chlorite.. 25
9.1.6 Water supply diluting water................................................ 26
9.1.7 3-way valve........................................................................ 26
9.1.8 Chemical supply instructions.............................................. 28
9.1.9 Sample water connection................................................... 28
9.2 Installation, electrical............................................................. 28
9.2.1 Wiring the control............................................................... 28
9.2.2 Connecting the terminals................................................... 30
9.2.3 Installing an emergency stop switch.................................. 32
9.2.4 Preparing the mains connection......................................... 32
10 Controlling the system................................................................... 33
10.1 Control elements................................................................. 33
10.2 Key functions....................................................................... 33
10.3 Operating menu, schematic................................................ 34
10.4 Operating menu, overview.................................................. 36
11 Start up.......................................................................................... 37
11.1 Setting the language........................................................... 38
11.2 Changing the user code...................................................... 38
11.3 Configuring alarm relay contact types................................. 39
11.4 Installing chemical drums.................................................... 39
11.5 Carrying out commissioning................................................ 40
12 Operation....................................................................................... 43
12.1 Changing the chemical drums............................................. 43
12.2 Flush system....................................................................... 45
12.3 Paging through the protocol................................................ 47
12.4 Perform service................................................................... 48
13 Maintenance.................................................................................. 49
14 Repairs.......................................................................................... 50
15 Troubleshooting............................................................................. 51
16 Decommissioning.......................................................................... 52
16.1 For a short period................................................................ 52
Table of contents
3

16.2 Over longer periods............................................................. 52
17 Disposal......................................................................................... 53
18 Technical data CDLb..................................................................... 54
19 Accessories................................................................................... 56
20 EC Declaration of Conformity ....................................................... 58
21 Dimensional drawings................................................................... 59
22 Interface list................................................................................... 65
23 Wiring diagram CDLb.................................................................... 66
24 Decontamination declaration......................................................... 70
25 Chlorine dioxide hazardous substance data sheet........................ 71
25.1 Physical and chemical properties........................................ 71
25.1.1 Chemical characterisation................................................ 71
25.1.2 Properties of gaseous chlorine dioxide............................ 71
25.1.3 Properties of an aqueous solution of chlorine dioxide...... 71
25.2 Handling aqueous chlorine dioxide solutions...................... 72
25.2.1 Labelling and characters.................................................. 72
25.2.2 Storage............................................................................. 72
25.2.3 Measures in the event of spillage, escape, gas leaks...... 72
25.2.4 Measures in the event of fires.......................................... 72
25.2.5 Disposal........................................................................... 72
25.3 Health protection................................................................. 72
25.3.1 MAC value and odour threshold....................................... 72
25.3.2 Personal protective equipment......................................... 72
25.3.3 Health hazards................................................................. 73
25.3.4 First Aid............................................................................ 73
25.4 More Information................................................................. 73
26 Index.............................................................................................. 74
Table of contents
4

1 Identity code
The identity code is shown on the system nameplate.
Product range CDL, Version b
CDLb Type Production performance
02 6 6 g/h
04 12 12 g/h
06 22 22 g/h
08 55 55 g/h
10 120 120 g/h
Equipment
0 With internal pre-storage vessel, pump and multifunctional valve (only up to 55 g/h)
1 With internal pre-storage vessel and pump (only up to 55 g/h)
2 With internal pre-storage vessel (only up to 55 g/h)
3 With external pre-storage module
Design
P ProMaqua
H Switzerland
Operating voltage
0 230 V, 50/60 Hz
1 115 V, 50/60 Hz
Suction lance
0 no suction lance
1 with suction lance
2 with suction lance and collecting pan
Language
DE German
EN English
ES Spanish
FR French
IT Italian
Identity code
5

2 About this system
The Bello Zon® CDLb chlorine dioxide generating and metering system is
designed for drinking water treatment - especially in respect of water disin‐
fection using chlorine dioxide.
The control provides an appropriate amount of diluting water in the mixer
vessel and mixes it with precisely measured quantities of hydrochloric acid
and sodium chlorite, which are metered using two measuring vessels and
two metering pumps. This creates a ClO2 solution with a concentration of 2
g/l (CDLb 6: 1 g/l). Thanks to the lower concentration relative to other pro‐
cesses, the process is particularly safe.
The produced ClO2 solution flows into the external pre-storage module,
from which it can be dosed using the metering pumps.
About this system
6

3 Safety chapter
The following signal words are used in these operating instructions to
denote different severities of danger:
Signal word Meaning
WARNING Denotes a possibly dangerous sit‐
uation. If this is disregarded, you
are in a life-threatening situation
and this can result in serious inju‐
ries.
CAUTION Denotes a possibly dangerous sit‐
uation. If this is disregarded, it
could result in slight or minor inju‐
ries or material damage.
The following warning signs are used in these operating instructions to
denote different types of danger:
Warning signs Type of danger
Warning – corrosive substances.
Warning – automatic start-up.
Warning – high-voltage.
Warning – explosive substances.
Warning – toxic substances.
Warning – danger zone.
Firstly always observe these two basic rules:
1. - The two chemicals Bello Zon® acid (dilute HCl) and Bello Zon®
chlorite (dilute NaClO2) must never be brought into contact except in
the mixer vessel!
Otherwise hazardous ClO2 gas forms!
2. - Never operate the chlorine dioxide Bello Zon® CDL with incorrectly
diluted acid or incorrectly diluted sodium chlorite!
Otherwise ClO2 concentrations are formed for which the system is
not designed! Moreover chlorite concentrations that are harmful to
health can form in the treated water.
Identification of safety notes
Warning signs denoting different types of
danger
The basic rules
Safety chapter
7

nCDLb type systems are solely suited to the production of a chlorine
dioxide solution of 2 g/l concentration (CDLb 6: 1 g/l) from dilute
hydrochloric acid (9 %) and sodium chlorite solution (7.5 %).
Systems with an external storage module store the chlorine dioxide
solution for further use.
nAll other uses or a modification of the system are only permitted with
the written authorisation of ProMinent, Heidelberg!
nSystems of type CDLb must only be operated under the conditions
described in the technical data!
nDo not allow untrained personnel to operate systems of type CDLb! All
other activities should only be carried out by personnel trained by
ProMinent or personnel who have been authorised by ProMinent –
see the table below!
nYou are obliged to observe the information contained in the operating
instructions at the different phases of the system's service life!
nPlease observe the relevant national regulations and guidelines at
every phase of the device's service life!
WARNING!
According to accident statistics, holiday replacements are a
safety risk.
– Holiday replacements should also be qualified, as out‐
lined below, and have been instructed accordingly.
Task Qualification
Assembly / installation ProMinent service technicians or
competent persons authorised by
ProMinent
Initial commissioning ProMinent service technicians or
competent persons authorised by
ProMinent
Start up Technical experts
Operation, canister replacement Instructed person
Maintenance, repair ProMinent service technicians or
competent persons authorised by
ProMinent
Decommissioning, disposal ProMinent service technicians or
competent persons authorised by
ProMinent
Troubleshooting simple faults Instructed person
Troubleshooting difficult faults ProMinent service technicians or
competent persons authorised by
ProMinent
Technical experts
A technical expert is deemed to be a person who is able to assess the
tasks assigned to him and recognise possible hazards based on his/her
technical training and experience, as well as knowledge of applicable reg‐
ulations.
Note:
A technical qualification is typically proven by the required completion of a
technical training course, e.g. as an engineer or craftsman. The assess‐
ment of a person's technical training can also be based on several years
of work in the relevant field.
Qualified employee
Intended use
Qualification of personnel
Explanation of the table:
Safety chapter
8

A qualified employee is deemed to be a person who is able to assess the
tasks assigned to him and recognise possible dangers based on his/her
technical training, knowledge and experience, as well as knowledge of
pertinent regulations.
Note:
A qualification of equal validity to a technical qualification can also be
gained by several years of employment in the relevant field of work.
Instructed person
An instructed person is deemed to be a person who has been instructed
and, if required, trained in the tasks assigned to him/her and possible dan‐
gers that could result from improper behaviour, as well as having been
instructed in the required protective equipment and protective measures.
Service
The Service department refers to service technicians, who have received
proven training and have been authorised by ProMinent to work on the
system.
The following represents the current situation in Germany at the time of
going to print of the operating instructions:
nFace mask
nRubber or plastic boots
nProtective gloves (ClO2-resistant design!)
nProtective apron
nFull-face protective mask
n1 replacement filter per protective mask
Chlorine dioxide systems Bello Zon® CDLb are designed according to the
DVGW (German Technical and Scientific Association for Gas and Water)
specifications W 224 and W 624. They include the following safety equip‐
ment:
Safety instruction stickers
The following represents the current situation in Germany at the time of
going to print of the operating instructions:
The stuck-on safety instructions must always be fitted and legible.
This includes the two red and blue stickers for dilute acid and dilute
chlorite ("Do not interchange connectors....").
And these two stickers:
Vor Öffnen des Gerätes
Stecker ziehen.
Before opening machine
disconnect mains.
Avant d‘ouvrier l‘appareil
retirez la fiche mâle.
Antes de abrir
el aparato sacar el enchufe.
P_PMA_BEZ_0089_SW
Fig. 2: Sticker "Before opening the device ..."
Nur PTFE-Schlauch verwenden!
Use PTFE-hose only!
Utiliser seulement des boyau PTFE!
Uso solo mangueras de PTFE!
P_PMA_BEZ_0090_SW
Fig. 3: Sticker "Only PTFE tube..."
The following sticker must be attached to the exhaust gas lung:
Personal protective equipment
Description and testing of safety equip‐
ment
Safety chapter
9

Chlordioxidgas
Chlorine dioxide gas
Gaz de dioxyde de chlore
Biossido di chloro gas
P_PMA_BEZ_0091_SW
ClO2
Fig. 4: Sticker "Chlorine dioxide gas"
Chemical drum safety collecting pans (accessories)
The safety collecting pans should prevent chemicals escaping in an
uncontrolled manner from a defective chemical drum or even mixing with
other chemicals.
Safety collecting pan for an external pre-storage module
The integrated safety collecting pan should prevent ClO2 solution escaping
in an uncontrolled manner from a defective pre-storage module.
WARNING!
Danger from incorrect operation
Incorrect operation can result in dangerous conditions for the
system and its surroundings.
– All operating personnel should be instructed by a ProMi‐
nent service technician! (Takes place during initial com‐
missioning and is documented in the commissioning
report.)
–The operating instructions should be available adjacent
to the system.
WARNING!
Danger from hazardous substances!
Possible consequence: Fatal or very serious injuries.
Please ensure when handling hazardous substances that
you have read the latest safety data sheets provided by the
manufacture of the hazardous substance. The actions
required are described in the safety data sheet. Check the
safety data sheet regularly and replace, if necessary, as the
hazard potential of a substance can be re-evaluated at any
time based on new findings.
The system operator is responsible for ensuring that these
safety data sheets are available and that they are kept up to
date, as well as for producing an associated hazard assess‐
ment for the workstations affected.
WARNING!
Danger due to hazardous substances
By operating this system the operator generates hazardous
substances.
The operator is responsible for adapting the operating
instructions to their system in the event that more recent
knowledge about the dangers associated with a hazardous
substance and its avoidance become available or national
regulations prescribe something else to that stated in the
supplied operating instructions.
Safety notes
Safety chapter
10

WARNING!
Risk of explosion due to chlorine dioxide without safety
measures
Under rare fault conditions ClO2 solution can escape via a
leak.
– A gas detector must be installed if no other measure is
provided to ensure personnel safety in the event of ClO2
escaping so that the system switches off and an alarm is
triggered that can be seen/heard from afar.
CAUTION!
Attach warning signs at the place of installation of the Bello
Zon® CDLb and in the chemical storage rooms, in accord‐
ance with the local regulations.
CAUTION!
Warning against illegal operation
Observe the regulations that apply where the device is
installed.
nAccess only for trained personnel.
nIf there is a smell of chlorine dioxide (pungent, chlorine-like smell)
access is only permitted to personnel wearing the specified protective
equipment.
nIf there is a smell of chlorine dioxide, immediately switch off the
system from a safe position, e.g. emergency stop switch, which is
installed at a distance from the system.
Keywords when searching for the necessary regulations:
nChlorine dioxide systems
nChlorine dioxide (possibly chlorination as well)
nPotable water
nFood
nHydrochloric acid
nSodium chlorite
nStorage
nHazardous substances
nPersonal protective equipment
nYou have already come into contact with acid: See the latest "Acid
safety data sheet" provided by the supplier!
nYou have already come into contact with chlorite: See the latest
"Chlorite safety data sheet" provided by the supplier!
nYou have come into contact with ClO2 solution or ClO2 gas: Refer to
"Chlorine dioxide hazardous substance" data sheet: Properties of
chlorine dioxide and instructions for handling aqueous solutions" in the
appendix or a more recent hazardous substance data sheet.
Sound pressure level LpA < 70 dB according to EN ISO 20361
at maximum stroke length, maximum stroke rate, maximum back pressure
(water)
Instructions for entering a room in which
chlorine dioxide systems are installed
Note for the system operator
Information in the event of an emergency
Sound pressure level
Safety chapter
11

4 Storage and transport
WARNING!
Only return the device for repair in a cleaned state and with
hydraulic components - refer to the chapter "Decommis‐
sioning"!
Only send the unit complete with a filled in Decontamination
Declaration form. The Decontamination Declaration consti‐
tutes an integral part of an inspection / repair order. A unit
can only be inspected or repaired when a Decontamination
Declaration Form is submitted that has been completed cor‐
rectly and in full by an authorised and qualified person on
behalf of the operator.
The "Decontamination Declaration Form" can be found in the
Appendix or under www.prominent.com .
CAUTION!
Danger of material damage
The device can be damaged by incorrect or improper storage
or transportation!
– The unit should only be stored or transported in a well
packaged state - preferably in its original packaging.
–The packaged unit should also only be stored or trans‐
ported in accordance with the stipulated storage condi‐
tions.
– The packaged unit should be protected from moisture
and the ingress of chemicals.
The chlorine dioxide Bello Zon® CDL system is supplied in wooden pack‐
aging.
Data Value Unit
Minimum storage and transport tempera‐
ture
+5 °C
Maximum storage and transport tempera‐
ture
+50 °C
Maximum air humidity * 92 % rel.
humidity
* non-condensing
Miscellaneous: Protect against sunlight
In addition to the identity code options, the scope of supply includes:
nThe mounting kit (mounting equipment and threaded cable glands)
nLabels for suction lances / suction assemblies
nWarning signs - see chapter "Mounting and hydraulic installation"
Safety notes
Packaging
Ambient conditions
Scope of supply
Storage and transport
12

5 System overview
System
Fig. 5: System overview CDLb 6
1 Solenoid valve diluting water
2 Acid measuring vessel
3 Active carbon filter
4 Mixer vessel
5 Solenoid valve acid
6 Solenoid valve ClO2
7 Acid metering pump
8 Control
not shown Safety collecting pan (option)
not shown 3-way valve
For the sake of clarity, only device parts of the acid metering
line are identified.
The corresponding device parts for the chlorite metering line
are always located in a mirror image fashion to the right of
the corresponding acid device part.
System overview
13

Pre-storage module CDLb
36
30
34
31
33
32
P_PMA_BEZ_0081_SW
35
Fig. 6
30 ClO2 solution supply line (connect to CDL)
31 ClO2 extraction
32 Set of level switches
33 Receiver tank
34 Safety bund
35 Gas phase pressure equalising line (connect to CDL)
36 Box for exhaust gas "lung"
System overview
14

6 Functional description
6.1 Chemical principle behind the systems
Operate chlorine dioxide systems Bello Zon® according to the hydrochloric
acid-chlorite process:
Hydrochloric acid + sodium chlorite = chlorine dioxide + sodium chloride +
water
(4HCl + 5NaClO2 = 4ClO2 + 5NaCl + 2H2O)
The Bello Zon®CDLb systems produce a 0.2 % chlorine dioxide solution (2
g/l ClO2 or 1 g/l for the CDLb 6) through the combination of dilute hydro‐
chloric acid and dilute sodium chlorite solution.
6.2 System operating principle
The control provides an appropriate amount of diluting water in the mixer
vessel. Two metering pumps meter the chemicals Bello Zon® acid and
Bello Zon® chlorite into their respective measuring vessels until the level
switches in the vessels trigger. The control then empties the acid and
chlorite into the mixer vessel. After a defined reaction time has elapsed,
the control fills the mixer vessel with water until the vessel's level switch
triggers. This ensures that the produced solution is well mixed.
Thereupon, the control empties the content of the mixer vessel into the
external storage module. This ClO2 solution can be metered using site-
supplied equipment (e.g. metering pumps).
–
"System" comprises the totality of the control for the
Bello Zon® system and everything located on its panel.
– The "control" refers to the control in the housing on the
panel of the Bello Zon® system.
6.3 Safety equipment
The description of the safety equipment is contained in the chapter "Safety
Chapter".
General description
Definitions
Functional description
15

7 Requirements at the installation site
CAUTION!
Warning against illegal operation
Observe the regulations that apply where the device is
installed.
7.1 Requirements for the installation site
nThe chlorine dioxide system must not be located outdoors.
nIt must be possible to protect the chlorine dioxide system against
unauthorised access.
nThe site of the chlorine dioxide system must be protected against
solar radiation and also be frost-proof and well ventilated.
nIt must be possible to transport the chemical drums to the system
without obstruction.
nThere must be an emergency exit route.
nFor installation of the Bello Zon® CDL system, a smooth, vertical wall
must be available.
nIt should be possible to install the Bello Zon®CDL system so that the
chemical drums can be readily placed beneath it (bottom edge of the
Bello Zon® at least 1 m above the ground).
nA measuring point should be provided. The sample water line (or a
sampling tap) should be situated at least 2 m downstream of the point
of injection and before the first sampling point.
nA water connection for the diluting water is necessary (minimum pres‐
sure 3 bar).
nA water tap must be installed so that spilled chemicals can be cleared
without danger.
nA floor drain must be installed so that spilled chemicals can be cleared
without danger.
nIt must be possible to fit a gas detector.
nThere must be a mains connection, with an emergency stop switch
outside the installation room.
The following applicable regulations (within Germany) provide more
detailed information:
nThe accident prevention regulation (UVV) "Chlorination of Water", [in
German] GUV-V D5 (previously GUV 8.15), April 1979
n"Chlorine dioxide dosing systems", DVGW Merkblatt (data sheet) W
624, DVGW e.V., Eschborn, 02/2010
n"Chlorine dioxide in water treatment", DVGW Merkblatt (data sheet) W
224, DVGW e.V., Eschborn, ISSN 0176-3504
nThe directives for the protection of ground water against pollution [in
German] (section 19 of the German Federal Water Act (WHG) Edition
31/07/2009)
nThe German Ordinance on Hazardous Substances (GefStoffV) -
especially section 17 (general duty of protection) and section 20
(operating instructions; see also Accident Prevention Regulations sec‐
tion 9) [in German]
Safety notes
Note for the system operator
Requirements at the installation site
16

7.2 Requirements for the water
CAUTION!
Warning of operating disruptions and corrosion damage
Severe system operating disruptions and corrosion of your
piping system can occur.
– Always fulfil requirements in respect of the diluting water
and the water to be treated.
Parameter Value
Temperature: 10 - 30 °C
Pressure: 3 - 6 bar
Quality: Drinking water, particle-free, non-
corrosive
Parameter Value*
Temperature: 0 - 60 °C
Pressure, max. ***
*** For the version "With external pre-storage module": Dependent on the
external metering pumps.
CAUTION!
Warning of too-low ClO2 concentration
Certain dissolved matter can deplete ClO2.
– Bear in mind that a depletion of ClO2 by the matter dis‐
solved in the water can occur.
Likewise bear in mind the simultaneous formation of
chlorite.
Diluting water
Water to be treated
Requirements at the installation site
17

8 Assembly
WARNING!
Danger due to the sudden unexpected escaping of toxic
chlorine dioxide solution
The seals which are exposed to chlorine dioxide solution, will
start to leak if they are not replaced early enough.
– The system must be set up so that it can be accessed
easily for maintenance.
The supplied mounting kit contains the necessary hangar
bolts, rawlplugs, washers and nuts (mounting kit = plastic
bags with fixings and threaded cable glands...).
Select the mounting height so that:
nThe LCD screen of the control can be easily read
nThe fluid level of the full chemical drums is below the metering pumps
nThe maximum priming lift of the metering pumps is not exceeded, see
table "Technical data" in the appendix
nThere is still sufficient space for the chemical drums below the
bracket.
Priming lift metering pumps, max.* 2 m water column
** With clean and moist valves, feed chemical water (20 °C), at 100 %
stroke length ("Pump" symbol), 180 strokes/min, opened bleed valve
(applies for CDLb metering pumps)
Secure the Bello Zon® system on a suitable, smooth and ver‐
tical wall, as close as possible to the point of injection.
Dimensions sheets - see appendix
1 2 3 4 6 7
P_BEZ_0001_SW
Fig. 7: Fastening of deep drawn bracket
1 Rawlplug
2 Hanger bolt
3 Panel
4 Washer (plastic)
6 Hexagon nut
7 Protective cap
Safety notes
Fitting the panel
Assembly
18

Fig. 8: Fastening of welded bracket
1 Rawlplug
2 Hanger bolt
3 Panel
4 Hexagon nut
5 Washer (metal)
7 Protective cap
1. After fitting, brush the metallic fastenings with Vaseline to prevent
corrosion.
2. Fasten the external pre-storage module to the floor using clamps.
3. Attach the warning signs according to the national regulations at the
access to the chlorine dioxide system and the chemical stores or
any other locations so that they are clearly visible (Warning signs
according to German regulations (08/2012) form part of the scope of
supply).
CAUTION!
Warning against illegal operation
Observe the regulations that apply where the device is
installed.
Provided national regulations do not require otherwise, used signs of the
form and type given below.
a) Attach both these signs together at the entrances to rooms in which
Bello Zon® chlorine dioxide systems are set up:
Warning sign * Warning label * Included text
Chlor. dioxide equipment
Access only for
trained personnel
P_BEZ_0004_SW
Chlorine dioxide
system.
Access only for trained
personnel.
* Mandatory in Germany
b) Attach both these signs together at the entrances to rooms in which
sodium chlorite (Bello Zon® chlorite) is stored or used:
Warning labels
Assembly
19

Warning sign * Warning label * Included text
Sodium chlorite
NaClO2
P_BEZ_0003_SW
Sodium chlorite
NaCIO2
* Mandatory in Germany
c) Attach this sign in rooms in which sodium chlorite (Bello Zon® chlorite) is
handled:
Warning label * Included text
Do not use storage tank
and devices alternately
Sodium chlorite + acid
= highly toxic chlor. dioxide gas
DANGER TO LIFE!
P_BEZ_0005_SW
Do not interchange storage tanks
and devices.
Sodium chlorite + acid = highly
toxic chlorine dioxide gas.
Danger to life!
* Mandatory in Germany
This applies to stores and decanting rooms in which the chemical drums
are set up, which are then connected to the Bello Zon® systems.
Assembly
20