vacuubrand PC 3001 TE VARIO PRO Instructions For Use Manual Download Page 31

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page 31 of 121

Abbreviations

EK:

Waste vapor condenser (emission condenser)

ETFE

Ethylene/Tetrafluoroethylene

ECTFE

Ethylene/Chlorotrifluoroethylene

FFKM

Perfluoro elastomer

FPM

Fluoroelastomer

IK:

Waste vapor condenser (inlet condenser)

Polyamide

PBT

: Polybutylene terephthalate

PET

Polyethylene terephthalate

Polypropylene

PPS

: Polyphenylene sulfide

PTFE

: Polytetrafluoroethylene

PVF:

Polyvinyl fluoride

TE:

Dry ice waste vapor condenser

Position

Component

MD 1C VARIO chemistry

diaphragm pump

CVC 3000 controller

Mains connection

ON/OFF switch

Inlet

Outlet

Gas ballast valve

Handle

Exhaust waste vapor con-

denser

Position

Component

Catchpot

Coolant inlet

Coolant outlet

Dry ice vapor condenser

Distribution head

Inlet condenser

Peltronic emission

condenser

Overpressure safety relief

device

Pump parts

Summary of Contents for PC 3001 TE VARIO PRO

Page 1: ...with speed control Instructions for use Technology for Vacuum Systems PC 3001 VARIOpro PC 3001 TE VARIOpro PC 3001 VARIOpro IK PC 3001 VARIOpro EK Peltronic Part I of II Part I Part I Safety informat...

Page 2: ...phragm pump before leaving our factory is tested intensively including an endurance run of 14 hours Any faults even those which oc cur rarely are identified and can be eliminated immediately After com...

Page 3: ...equired measures must be applied Safety instructions for vacuum equipment FR Attention Le mode d emploi pr sent n est pas disponible dans toutes les langues d Union Europ enne L utilisateur ne doit me...

Page 4: ...tiende este manual En este caso se debe disponer de una traducci n t cnicamente correcta del manual completo El manual debe ser le do y entendido completamente y deben aplicarse todas las medidas de s...

Page 5: ...ente letto e compreso prima di operare con lo strumento e devono essere applicati tutti gli accorgimenti richiesti Istruzioni di sicurezza per apparecchi a vuoto JP KR LT D mesio is vadovas n ra patei...

Page 6: ...o ci przeczytana i zrozumiana przed podj ciem pracy z urz dzeniem oraz nale y podj wszystkie niezb dne kroki zwi zane z prawid owym uzytkowaniem Wskaz wki bezpiecze stwa do urz dze pr niowych PT Aten...

Page 7: ...opravljene pa moraja biti tudi vse potrebne meritve Varnostni nasveti za vakuumske naprave SK Upozornenie Tento manu l nie je k dispoz cii vo v etk ch jazykoch E U vate nesmie obsluhova zariadenie po...

Page 8: ...ion 1 switch off 2 press both 3 turn 4 press Portugu ycc Polski Nederl Suomi CVC 3000 V2 0 Deutsch English Fran ais Italiano Espa ol T rk e Portugu ycc Polski Nederl Suomi CVC 3000 V2 0 Deutsch Englis...

Page 9: ...Abbreviations 31 Pump parts 31 Use and operation 38 Installing a pump in a vacuum system 38 Notes regarding the dry ice condenser 43 Notes concerning the operation of the inlet condenser IK 45 Notes...

Page 10: ...s CVC 2000 87 Read commands CVC 3000 89 Write commands CVC 3000 91 Accessories 94 Troubleshooting 95 Replacing diaphragms and valves 99 Cleaning and inspecting the pump heads 101 Disassembling the hou...

Page 11: ...the vacuum pump The manual consists of two parts Make operating personnel aware of dangers arising from the pump and the pumped substances VACUUBRAND disclaims any liability for inappropri ate use of...

Page 12: ...wer Dispose of electronic equipment according to regula tions NOTICE Formatting used in this manual Note The signal word panels in all sections of this manual always refer to all paragraphs of the sam...

Page 13: ...d any and all warranty claims for those deficiencies Replace the protective caps if the equipment is not used immediately Store the equipment in dry and non corrosive conditions see also Technical dat...

Page 14: ...mperature depends on several parameters like inlet pressure and ambient tempera ture see Technical data pg 27 Particles and dust must not enter the pump Do not pump liquids Ensure that the pump and an...

Page 15: ...imum permissible pressure at the pressure trans ducer 21 8 psi 1 5 bar absolute Keep the electrical power cord away from heated sur faces Provide a firm level platform for the equipment Check that the...

Page 16: ...slots if neces sary to avoid a reduction of ventilation Do not place the pumping unit on soft surfaces e g rub ber foam during operation This may reduce or block the electronics air supply Do not cov...

Page 17: ...standards see Declaration of Con formity with regard to design type and model Directive EN 61010 1 gives in detail the conditions under which the equipment can be operated safely see also IP degree of...

Page 18: ...s which may form deposits inside the pump Deposits and condensate in the pump may lead to increased temperatures even to the point of exceeding the maximum permitted temperatures Check the inlet and o...

Page 19: ...mechanically generated sparks hot surfaces or static electricity may ignite these mixtures Use inert gas for gas ballast or venting if necessary Drain appropriately or otherwise remove any poten tial...

Page 20: ...be allowed to lead to dangerous conditions In case of a diaphragm failure or in case of a leak in the manifold pumped substances might be released into the environment or into the pump housing or mot...

Page 21: ...controller starts the pump switches a coolant valve or opens a venting valve Attention If the controller is set to Autostart the pro cess will start immediately after a power failure with out pressing...

Page 22: ...he catchpots regularly and drain condensate in time to prevent overfilling Install a level sensor see Accessories pg 94 for monitoring if necessary Provide appropriate protective measures to allow for...

Page 23: ...Bearings have a typical durability of 40000 h Ensure that the pump cannot be operated acciden tally Never operate the pump if covers or other parts of the pump are disassembled Switch off the pump Di...

Page 24: ...the coolant circuit and drain condensate if applicable Ensure that maintenance is done only by suitably trained and supervised technicians Ensure that the maintenance technician is familiar with the s...

Page 25: ...which during normal operation explosive atmo spheres caused by gases vapors or mists normally don t occur or if they do occur are likely to do so only infrequently and for a short period only Equipme...

Page 26: ...mp achieves its specified ultimate vacuum is the pump s leak rate low enough to en sure that no explosive atmospheres will occur in the interior of the equip ment After any intervention at the vacuum...

Page 27: ...relative atmospheric mois ture during operation no condensation 30 to 85 Maximum permissible installation altitude above mean sea level ft m 6500 2000 Rated motor power hp kW 0 21 0 16 No load speed...

Page 28: ...1 4 5 16 hose nozzle DN 6 8 mm Maximum permissible pres sure of coolant at vapor con denser psi bar 87 absolute 6 absolute Permissible range of coolant temperature vapor condenser F C 5 to 68 15 to 2...

Page 29: ...rature 0 75 Torr 1 mbar Temperature coefficient 0 05 Torr K 0 07 mbar K Ambient temperature range operation 50 F to 104 F 10 C to 40 C Ambient temperature range storage 14 F to 158 F 10 C to 70 C Perm...

Page 30: ...PTFE film Distribution head inlet PPS glass fiber reinforced PP blind plug Waste vapor condenser IK EK TE catchpot Borosilicate glass Emission condenser Peltronic ETFE ECTFE PP PA Silencer PBT PVF ru...

Page 31: ...ne PPS Polyphenylene sulfide PTFE Polytetrafluoroethylene PVF Polyvinyl fluoride TE Dry ice waste vapor condenser Position Component 1 MD 1C VARIO chemistry diaphragm pump 2 CVC 3000 controller 3 Main...

Page 32: ...page 32 of 121 PC 3001 VARIOpro 1 5 2 9 7 11 12 4 3 10 6 8 14 17...

Page 33: ...page 33 of 121 PC 3001 TE VARIOpro 5 2 10 1 7 13 8 6 14 17 4 3...

Page 34: ...page 34 of 121 PC 3001 VARIOpro IK 1 5 2 9 7 4 3 10 8 11 12 15 17 11 12 6...

Page 35: ...page 35 of 121 PC 3001 VARIOpro emission condenser Peltronic 1 2 7 10 8 16 Netzschalter Kaltger tebuchse 4 3 4 3 5 6...

Page 36: ...page 36 of 121 PC 3001 VARIOpro without exhaust waste vapor condenser 1 5 2 7 4 3 10 8 14 6 with silencer...

Page 37: ...232 C Rear side CVC 3000 venting connection measurement connection rating plate Depending on technical version the connections of the VACUU BUS cables are equipped with a nib When connecting the VACU...

Page 38: ...pproximately 795 Torr 1060 mbar the pressure reading becomes incorrect due to saturation of the pressure transducer The dis play will flash Release pressure immediately Risk of bursting Particles and...

Page 39: ...source of danger take appropri ate safety measures Check the power source and the pump s rating plate to be sure that the power source and the equipment match in voltage phase and frequency The ON OFF...

Page 40: ...CUU BUS system see Accessories pg 94 The vacuum controller CVC 3000 controls VACUUBRAND diaphragm pumps NT VARIO and VARIO B pumping units PC 30xx VARIO and optional coolant and venting valves Connect...

Page 41: ...t the measuring connection PTFE tube Insert the cable of the component to be connected un derneath the housing and plug into the controller Do not apply off axis forces when assembling or removing plu...

Page 42: ...a por condenser The exhaust waste vapor condenser enables an effi cient condensation of the pumped vapors at the outlet No backflow of condensates Controlled recovery of condensates Close to 100 solve...

Page 43: ...ted and that it cannot get blocked Maximum permissible coolant pressure at the exhaust waste vapor condenser 87 psi 6 bar absolute Outlet flow must always be unhindered Comply with the maximum permiss...

Page 44: ...ate intervals Attention Coolant may overflow unexpectedly e g in case of large amounts of gas Do not overfill the condenser Lowest permissible cool ant temperature 112 F 80 C Maximum operating pressur...

Page 45: ...ndenser from the vacuum installation to drain the coolant Remove the cap on top of the condenser Turn the inner part of the condenser and lift to pull it out Comply with regulations when disposing of...

Page 46: ...ith two attachment screws Phillips screw driver size 2 to the pumping unit a Assemble the hose connection between pump outlet and condenser inlet b Slip connecting tube onto hose connection of the Pel...

Page 47: ...ean sea level check compatibility with applicable safety requirements and adopt suit able measures There is a risk of the motor overheat ing due to insufficient cooling Check compatibility with the ma...

Page 48: ...et is possible Disconnect the pump from the power source Identify and eliminate the cause of failure Check ventilation slots regularly for dust dirt Clean if nec essary Avoid overheating e g due to ho...

Page 49: ...osive mixtures Attention maximum supply pres sure of inert gas 17 5 psi 1 2 bar absolute Close the gas ballast valve by turning the cap 180 In case of low boiling solvents when the formation of conden...

Page 50: ...cuit e g caused by blocked or kinked coolant hoses Avoid any clogging of the exhaust vapor condenser caused by deposits or frozen solvents Clean if neces sary or use higher coolant temperatures In cas...

Page 51: ...under vacuum Short term Has the pump been exposed to condensate Allow the pump to continue to run at atmospheric pres sure for a few minutes Has the pump been exposed to media which may damage the pu...

Page 52: ...displayed followed by the preselected function and the pressure reading Attention Do not assemble or remove plug connections off axis Orient the plug correctly before inserting To connect additional...

Page 53: ...reach further parameters or to leave the set up menu Pump down Vac control Auto mode only with VACUU BUS compatible VARIO pump Program VACUULAN Configuration Selected function displayed in the upper...

Page 54: ...continuous pumping Process runtime only if process control is running 5 In line valve switched on Level sensor activated catchpots need to be emptied Peltronic emission condenser connected Pump symbol...

Page 55: ...or automated switching off are stored If the preselections are chosen appropriately it is possible to start imme diately if similar operating conditions are desired The controller features five functi...

Page 56: ...rogram Control pump based on time and pressure preselections or Auto mode Coolant valve Venting valve VACUULAN Use continuous speed control to manage VACUU BUS compatible VARIO pumps based on pressure...

Page 57: ...Off Graphic Back Function Pump down Vac control Auto mode Program VACUULAN Configuration Back MODE Configuration Adjustment 760 Torr RS 232 Sensors Display Autostart Off Defaults Cancel Back VACUULAN...

Page 58: ...ration Off Graphic Back Program Edit Open 0 Store 0 Delay Off Graphic Back 1013 2 Auto mode mbar Auto mode Sensitivity normal Speed HI Minimum Off Delay Off Duration Off Graphic Back MODE or automatic...

Page 59: ...m has been reached Minimum is adjustable in a range of 1 795 Torr 1 1060 mbar or can be set to Off A preset Duration process time has no effect if the process is stopped due to a preset Minimum before...

Page 60: ...DE key again switches to Auto mode function The controller adapts the boiling pressure starting from the current vacuum level The preset function of the controller does not change due to this tem pora...

Page 61: ...peed is adjustable in a range of 1 100 or can be set to HI The selection HI recommended provides the optimum pumping speed of the pump and therefore an optimum ultimate vacuum Maximum An upper pressur...

Page 62: ...to Auto mode while pro cess control is running Press MODE key The controller switches to Auto mode and adapts the boiling pressure starting with the actual set value The preset func tion of the contro...

Page 63: ...vacuum can be fine adjusted by turning the selection knob while process is running Turn the selection knob A full turn causes a change of the set vacuum of 9 Torr 12 mbar Turning the knob one detent...

Page 64: ...uring the pro cess Only in case of very sensitive processes is it advisable to reduce the maximum speed Minimum If the vacuum value reaches Minimum the process is stopped Use Minimum for automatic pro...

Page 65: ...DE key The controller switches to Vac control The cur rent pressure value is used and held as new set point The preset function of the controller does not change due to this tem porary switching When...

Page 66: ...p down as fast as possible to the preset vacuum level As soon as the vacuum level is reached the time meter starts running Auto Auto indicates that the system will search for a boiling point automatic...

Page 67: ...the actual runtime are displayed across the top The timeline in the diagram adapts automatically to the process time Press the selection knob twice to return to the standard display The most recent pr...

Page 68: ...ion to changes in the boiling point The following step starts either 1 once the cumulative process time reaches the set limit 1 hour 60 minutes even if the preset pressure 2 Torr mbar hPa has not been...

Page 69: ...signals an error The Set vacuum is adjustable in the range of 1 795 Torr 1 1060 mbar Switch on the higher switching value If the pressure exceeds this pressure pumping down starts again The Switch on...

Page 70: ...the display shows a pressure vs time curve The timeline in the diagram adapts automatically to the process time Press the selection knob twice to return to the standard display VACUULAN 40 mbar 00 13...

Page 71: ...lvent Start process by pressing START STOP key alternatively Select Vac control function Set Set vacuum to a value which does not lead to evaporation of the solvent If necessary set value for Speed hi...

Page 72: ...patible VARIO pump recommended Select Auto mode Start process by pressing START STOP key The Auto mode allows a fully automatic distillation even if the boiling vacuum is unknown With solvent mixtures...

Page 73: ...tion knob Pressing MODE key a second time switches to Auto mode causing the vacuum level to be automatically adapted to changes of the boiling pressure alternatively Select Vac control function Set a...

Page 74: ...cuum network Take account of the ultimate vacuum of the pump and of the system s leak rate in case of no vacuum demand Set Switch on pressure appropriately to ensure sufficient vacuum for all connecte...

Page 75: ...range between 15 to 525 Torr 20 to 700 mbar no adjust ment is possible Torr is displayed RS 232 Configuration of the interface setting of parameters and com mands see section Interface Baud rate can b...

Page 76: ...e system due to the automatic start up can occur and to provide appropriate safety measures If necessary the user has to check prior to starting the process if the option Autostart is enabled Defaults...

Page 77: ...ology for Vacuum Systems Part II of II Part II Part II Readjustment Interface parameters Accessories Maintenance Chemistry pumping unit with speed control PC 3001 VARIOpro PC 3001 TE VARIOpro PC 3001...

Page 78: ...0 Abbreviations 31 Pump parts 31 Use and operation 38 Installing a pump in a vacuum system 38 Notes regarding the dry ice condenser 43 Notes concerning the operation of the inlet condenser IK 45 Notes...

Page 79: ...s CVC 2000 87 Read commands CVC 3000 89 Write commands CVC 3000 91 Accessories 94 Troubleshooting 95 Replacing diaphragms and valves 99 Cleaning and inspecting the pump heads 101 Disassembling the hou...

Page 80: ...Torr 20 to 700 mbar no adjustment is possible Torr is displayed Adjustment at atmospheric pressure An adjustment at atmospheric pressure is only possible if the pressure is higher than 525 Torr 700 mb...

Page 81: ...adjustment under vacuum to a pres sure 0 1 Torr mbar adjustment to a pre cisely known reference pressure within the range of 0 15 Torr 20 mbar is possible Evacuate the measurement connection of the CV...

Page 82: ...r D K 15154 01 The DAkkS is signatory to the multilateral agreements of the European cooperation for Accreditation EA and of the International Laboratory Ac creditation Cooperation ILAC for the mutual...

Page 83: ...g time Observe all regulations concerning usage and disposal of sol vents Drain the solvent and dispose of in accordance with regulations Repeat cleaning if necessary Rinse the measurement chamber sev...

Page 84: ...ctrically isolated from the measuring circuit The controller is fully operable via the serial interface Measuring results preselections and the status of the controller can be read at any time The fac...

Page 85: ...rol ler to Remote off in menu configuration Switch off the controller Then switch the controller back on and press the selection knob within 2s A maximum of ten commands per second is possible Read co...

Page 86: ...re transducer last command to interface incorrect IN_STAT status of process control 0XXX 1XXX X0XX X1XX XX00 XX01 XX02 XX03 XX10 XX11 XX20 XX21 XX22 XX23 XX30 XX31 XX32 XX33 coolant valve closed coola...

Page 87: ...a according to pre selection see respective function for parameter range OUT_SP_6 time for automatic switching off VACUU LAN XX XX hh mm hours minutes START starting process control STOP stopping proc...

Page 88: ...cted the user has to ensure that no dangerous status of the system can occur due to the change of the mode of operation and must take appropriate safety precautions especially if selecting remote oper...

Page 89: ...X XXXXXXXXX0XXXXXX XXXXXXXXX1XXXXXX XXXXXXXXXX0XXXXX XXXXXXXXXX1XXXXX XXXXXXXXXXX0XXXX XXXXXXXXXXX1XXXX XXXXXXXXXXXX0XXX XXXXXXXXXXXX1XXX XXXXXXXXXXXXXyXX XXXXXXXXXXXXXXyX XXXXXXXXXXXXXXX0 XXXXXXXXXXX...

Page 90: ...XXXXXX X1XXXXXXX XX0XXXXXX XX1XXXXXX XXX0XXXXX XXX1XXXXX XXXX0XXXX XXXX1XXXX XXXXX0XXX XXXXX1XXX XXXXXX0XX XXXXXX1XX XXXXXXX0X XXXXXXX1X XXXXXXXX0 XXXXXXXX1 no fault at pump fault at pump no fault at...

Page 91: ...Description IN_SP_4 delay XX XX h m hours minutes 00 00 Off IN_SP_5 switch off pressure XXXX mbar Torr hPa Maximum for Vac control Minimum for Pump down unit according to preselections IN_SP_6 runtime...

Page 92: ...9 OUT_SP_P1y time XX XX XX XX XX XX total runtime until program step y 0 9 or time for program step y 0 9 additive OUT_SP_P2y pressure XXXX pressure at program step y 0 9 unit according to preselecti...

Page 93: ...ion interferes with a locally operated active process With command ECHO 1 a return value can be activated at write com mands A return value is only given if the command is performed cor rectly After b...

Page 94: ...cable 6 6ft 2m 612552 VACUU BUS wall jack 636153 Serial cable RS 232C 9 pin Sub D 637837 Upgrade kit emission condenser 699922 for PC 3001 VARIOpro without emission condenser Silencer with connection...

Page 95: ...d valves Replace valves Short circuit at the RS 232 plug Check plug and cable Other than above men tioned causes Contact local distributor Pressure reading incorrect Pressure transducer decalibrated R...

Page 96: ...ng Warning triangle is flashing five or seven blips Five blips External pressure transducer defective or removed Connect pressure trans ducer or replace with a new one or reconfigure without pressure...

Page 97: ...espond when operating any keys No change after switching off on Contact local distributor Pump does not start or stops im mediately Warning triangle and pump symbol are flash ing Pump has been ex pose...

Page 98: ...et Connect hose or silencer to pump outlet Be careful not to cause outlet over pressure especially with condensable vapors Diaphragm crack or diaphragm clamping disc loose Perform maintenance Other th...

Page 99: ...The pump might be contaminated with the pro cess chemicals that have been pumped during opera tion Ensure that the pump is decontaminated before maintenance Avoid the release of pollutants Never oper...

Page 100: ...aphragms and valves must be checked for cracks or other damage All bearings are encapsulated and are filled with long life lubricant Under normal operating conditions the drive system is maintenance f...

Page 101: ...off the hose connector Opening the hose clip Apply slotted screwdriver as shown and turn N M A PC 3001 VARIOpro PC 3001 VARIOpro IK Disassemble the exhaust vapor condenser Loosen the union nut at the...

Page 102: ...emove the 2 screws affixing the mounting plate of the emission condenser TE with a Phillips screw driver size 2 Remove the emission condenser TE In do ing so pull the PTFE hose out of the inlet of the...

Page 103: ...Allen key at one housing cover Disassembling the housing cover at the side of the emis sion condenser Lay the pumping unit on its side with the pump heads to be maintained at the top Support the pumpi...

Page 104: ...mp head parts A Housing cover with insert B Valves C Head cover D Diaphragm clamping disc with square head screw E Diaphragm F Diaphragm support disc G Washer s H Connecting rod I Housing J Housing be...

Page 105: ...ning point position Use the diaphragm key to grip the diaphragm support disc F below the diaphragm Press down the diaphragm clamping disc to bring the diaphragm into its lower turning point position U...

Page 106: ...ce the di aphragm carefully together with diaphragm clamping disc and diaphragm support disc in the diaphragm key Avoid damage of the diaphragm Do not ex cessively bend or crease the diaphragm Assembl...

Page 107: ...etween housing I and head covers C Put the valves B in place See figure below for the correct position of the valves Inlet side of pump head The valve tongue points at the kidney shaped orifice in the...

Page 108: ...ump heads to be maintained at the top Support the pumping unit appropriately Disassemble the housing cover A to check the valves B Unscrew six Allen screws with a 4mm wide Allen key Remove the housing...

Page 109: ...the inlet Move housing cover slightly to ensure that the head covers are cor rectly positioned Screw in the Allen head screws at the head cover in a diagonal pattern with a 4 mm wide Allen key loosel...

Page 110: ...IK Assemble the inlet condenser Slip the hose from the inlet of the pump onto the hose connector of the inlet condenser Mount the condenser with the counter hold er Torx screws T10 to the pump Tighte...

Page 111: ...ttention to the cage nuts in the groove of the housing cover Slip connecting hose onto hose connection of fitting below the housing cover Close hose clip with flat pliers Assemble catchpots 10 with jo...

Page 112: ...sure safety relief device 638821 at exhaust waste vapor condenser Catchpot 0 52 qt 500 ml coated 638497 O ring 28 x 2 5 635628 at the spherical ground joint of the catchpot at the inlet If the pump do...

Page 113: ...ices cannot be checked maintained or re paired Also decontaminated devices must not returned to VACUUBRAND due to a residual risk The same conditions apply to on site work No repair maintenance return...

Page 114: ...aint at your ex pense just in case such a damage should occur We will also replace parts for cosmetic reasons at your request and at your expense Before returning the device Pack the device properly i...

Page 115: ...ormal wear and tear of wearing parts such as diaphragms seals valves vanes condensers oil and the breakage of glass or ceramic parts for the consequences of chemical electrochemical or electrical infl...

Page 116: ...ppearance repaint and replacement at customer s expense yes no 12 Legally binding declaration We assure for the returned device that all substances which have been in contact with the device are liste...

Page 117: ...ie Siehe Typenschild See rating plate Voir plaque signal tique Angewandte harmonisierte Normen Harmonized standards applied Normes harmonis es utilis es DIN EN 12100 2011 DIN EN 61010 1 2011 IEC 61010...

Page 118: ...page 118 of 121 This certificate is only valid for pumps with the respec tive mark Licensed Test mark on the pump rating plate...

Page 119: ...l Protection Use Period EPUP EPUP defines the period in years during which the hazardous substances contained in electrical and electronic products will not leak or mutate under normal operating condi...

Page 120: ...disclosures in the above table the subassemblies are not intentionally manufactured or formulated with lead Pb mercury Hg cadmium Cd hexavalent chromium Cr VI polybrominated biphenyls PBB and polybrom...

Page 121: ...efore strictly the users responsibil ity to very carefully check the application of these data to their specific requirements No claims arising from the information provided in this lit erature will c...

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