WELCOME TO INSTRUMENTATION LABORATORY!

WELCOME TO INSTRUMENTATION LABORATORY!

WARNING SIGN EXPLANATIONS IRRITANT Haitallinen/ ärsyttävä/ herkistävä/ otsonikerrokselle haitallinen SEVERE HEALTH RISK Vakava terveysvaara TOXIC Välittömasti myrkyllinen FLAMMABLE Syttyvä OXIDISING AGENT Hapettava EXPLOSIVE Räjähtävä CORROSIVE Syövyttävä POLLUTING Ympäristölle vaarallinen GASES UNDER PRESSURE Paineen alaiset kaasut LASER RADIATION Laser-säteilyä NON-IONIZING RADIATION ULTRASOUND Ultra-ääni RADIATION Säteilyä HIGH VOLTAGE Korkeajännite SHARP EDGES Leikkautumisva ara HIGH LEVEL OF NOISE

GENERAL LABORATORY SAFETY Do not touch anything without permission Do not use machinery without training. Always use the safety technology available. Tools and materials have to be stored in a right way. That brings safety and efficiency. Tools (For example screw drivers): tools walls Materials like resistors and screws: materials carousels Chemicals: air-conditioned cupboards and special bottles Radiation sources: locked boxes After usage Shut down the machines. Return tools and materials to their right places. Put trash in the right trash cans and recycling boxes. Example : sharp waste (glass, scalpel blades etc.) Clean up. Materials carousel Chemicals storages Tools wall Material recycling boxes

LABORATORY SAFETY, FUME HOOD Fume hood is safety technology which is used to protect humans from harmful fumes and dust. Example: glueing Do not store anything on the fume hood. Keep the fume hood clean. If you need to leave materials to fume hood; Place materials so, that others can use the fume hood during preservation. Mark your samples. Keep the fume hood door closed. Fume hood

LABORATORY SAFETY, CHEMICALS When you start using chemical: Read the safety data sheet ( Käyttöturvallisuustiedote ). Familiarize yourself with the first aid instructions. Familiarize yourself with the list of chemicals, which can t be stored or handled on the same premises (fume hood or closet). Ensure the safe position for the chemical storaging and handling before starting the usage. Ensure, that your chemical is marked clearly. All the containers without proper markings will be disposed. Chemical waste Mark the waste properly with your name, waste creation date and waste content (example: ~99% IPA & ~1% copper). Ensure, that the waste is stored and destroyed safely. Very often root cause of a chemical accidents is because of wrong chemical waste handling or storaging. Chemical waste can have unexpected characteristics like pressure formation Unknown waste is the most expensive possible class of waste. The mostly used chemicals in the instrumentation laboratory are IPA (Isopropyl alcohol) and acetone, which are kept in special bottles with airlocks because of their flammability. Eye damage first aid Emergency shower

LABORATORY SAFETY, GLUEING Widely used glues (e.g epoxy) are harmful to health Skin contact: Danger of severe allergic reactions and poisoning. Eye contact: Danger of permanent eye-damages. Inhalation of glue fumes: Short term exposure; respiratory tract irritation and headache. Long term exposure; Allergic reactions and brain damages. Glueing safety Carry out glueing in fume hood. Follow carefully the glue package instructions. Use gloves. Protect your eyes from glue spreads. Use disposable tools when possible. Put the glue waste to glue waste box in plastic bag. Dry the glued matters in fume hood with closed door. Widely used araldite and epoxy glues

LABORATORY SAFETY, SOLDERING Soldering irons tip temperatures are in level 300 C-500 C. Hold the soldering iron on a right way. After usage clean up and shut down the soldering irons. Set the soldering irons to their holders on a right way. Do not store anything on soldering station. Tip

LABORATORY SAFETY, SOLDERING Soldering process releases VOC (Volatile Organic Compounds) and possibly heavy metals (e.g lead) containing fume to air. Short term exposure; respiratory tract irritation, headache and allergy reactions Long term exposure; severe respiratory tract problems(e.g cancer and asthma), headache and allergy reactions. Soldering fumes are heavier than air. That is why special Fume Extraction Kit is needed to keep the soldering process safe. How to use the Fume Extraction Kit: Turn on the power from the switches 1 and 2. Turn on the power from the control panel 3. Adjust the fume intake power using and + buttons. Maximum funnel distance D from the sample is 15cm.

LABORATORY SAFETY, MECHANICAL WORK Mechanical work Do not use upright drills. Use safety glasses, ear protection and if applicable: protective gloves. Upright drill

LABORATORY SAFETY, GASES The most widely used gases in instrumentation laboratory are nitrogen and P10-gas (mixed gas with 90% Ar, 10% methane) and Argon. Do not use gases without supervision. Do not handle gas bottles. Gas bottles with different contents are marked with different colors. The bottle color is about the gas type The bottle neck color is about the gas characteristics in the air. Gas supplier of Detector laboratory is AGA. They use color codes, which are listed in the address: http://www.aga.fi/internet.lg.lg.fin/fi/images/aga%20cylinder %20Colours%20Datasheet%20FI634_120456.pdf?v=2.0 Grey bottle: special and pure gases Light green bottle neck: Another inert gases Red bottle neck: Flammable gases Detector laboratory gas valves Bottle neck color Bottle color Argon bottle

LABORATORY SAFETY, HIGH VOLTAGES AND CURRENTS High voltages and currents are present in instrumentation laboratory. Follow carefully instructions of your supervisor! ALICE project HV- technology

LABORATORY SAFETY, RADIATION Only low level sealed radiation sources are used in training cources. Follow the instructions of your supervisor. Radioactive sources usage, handling and storage conditions are regulated by law. Radiation sources storages Radiation meters

LABORATORY SAFETY, LASERS & ultra sound Lasers Do not touch the lasers Follow the instructions of your supervisor. Ultra sound No entry to the room, when the warning light is on. An ultra sound is harmful to human, even if human is not able to hear it.

IMPORTANT LINKS Safety data sheet of IPA https://www.ttl.fi/ova/isopropanoli.pdf Safety instruction letter of HU https://flamma.helsinki.fi/content/res/pri/hy1002967 Instructions in emergency situation https://flamma.helsinki.fi/content/res/pri/hy334484 Prevention of inappropriate behaviour and harassment at the University of Helsinki https://flamma.helsinki.fi/portal/home/sisalto?_nfpb=true&_windowlabel=conte ntviewer&contentid=hy1002421&lang=en&_pagelabel=content_view