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8.2Housing materials and resistance to chemicals
The resistance of housing materials is an important parameter for the use of identification systems. The standard housing materials are:
V2A ABS Epoxy PBT PC POM PP PPS PS PVC Acetic acid20 °C25%0+10%10%70%+50%40 °C Acetone + - - + - + + + - -Ammonia+25%010%-++++0 Benzene + - + + - + - + - -Brake fluid0-++ Butane + + + + + + - +Butanol-++40 °C Calcium chloride + 10 °C + + + + + 60 °CCarbon disulphide+---++-0 Carbon tetrachloride + - - - 0Caustic soda20 °C50%3%-++50%+ Chlorobenzene 20 °C - + - + - - -Citric acid20 °C++10%+++ Diesel oil + + + + 60 °C + - Engine oils++++++0 Formaldehyde + 30% 50% 30% + 40% 37% 40% +Formic acid20 °C40%+10%--85%040%50% Frigen 113 - + - + +Fruit juice++++-+ Fuel oil + + + 60 °C + - Glycerine++++0++++60 °C Hydraulic oil + + 60 °C +Hydrochloric acid-0-10%20%-+-10%0 Lactic acid 20 °C 80% + + + + 80% 0Linseed oil+++++++ Lubricating oil + + + 0/+ + Methanol+++-++++ Methylene chloride + - - - + - -Mineral oils+++++++ Nitric acid 66% - - 10% - 25% 10% +Petrol+25%++0+-+-+ Potassium chloride + + + + + 60 °CPotassium hydroxide50%03%-+50%50%60 °C Potassium hydroxide + + Rinsing agent++ Sea water (cold) + + + + + + +Soapsuds++0+++ Sodium carbonate + + + + + + Sodium chloride+++++++ Sodium hydroxide 20 °C + + Spirit of Turpentine++0+-+ Sulphuric acid - 50% - 28% 50% - 80% 50% 50% 70%Tartaric acid20 °C+++10%++60 °C Toluene + - + + - + - + - -Trichlorethylene+--+---0-- Water + + 68 °C 68 °C + + + + + 60 °CXylene+-+-+-+-- Zinc sulphate + + + -
+:resistant0:medium resistant-:not resistant:no specificationIf nothing to the contrary is indicated, the tests were carried out at room temperature. If different media concur, the resistances may change. Thus, we are unable to guarantee the specifications. •V2A stainless steel•ABS (acrylonitrile butadiene styrene)•Epoxy potting compound•PBT (polybutylene terephthalate, Crastin)•PC (polycarbonate, Makrolon)•POM (polyoxymethylen, polyacetal, Delrin)
•PP (polypropylene, Hostalen)•PPS (polyphenylensulfide, Ryton)•PS (polystere)•PVC (polyvinylchloride) Issue date 2005-08-18 - Catalogue Identification Systems 2005/2006 Subject to reasonable modifications due to technical advances.Copyright Pepperl+Fuchs, Printed in German y Pepperl+Fuchs Group • Tel.: Germany +49 621 776-0 • USA +1 330 4253555 • Singapore +65 67799091 • Internet http://www.pepperl-fuchs.co m 195