Instruction on hydrofluoric acid

1. Instruction on hydrofluoric acid Christel Renders Safety Officer Philips Innovation Services 2013

2. Hydrofluoric acid (HF) Appearance Toxicology Safety measures Exposure route Effects from poisoning First Aid measures

3. Appearance HF • Liquid • Clear solution • Resembles water • A dangerous concentration of HF in air is reached very quickly through evaporation at 20°C! • Gas • Higher density than air • Upon release: immediate danger!!

4. Toxicology HF Highly toxic Corrosive Odor threshold: 0.25 mg/m3 Legal Limit HF: 1 mg/m3 TGG 15 min.

5. Safety measures HF • Before you start working: • If possible, replace HF with a less dangerous substance • RWV-069-930-519/01: Protocol ongevallen met fluorwaterstof (HF) • Material Safety Data Sheet • Check availability medication and expiration date • During work: • Prevent exposure: work under a fume hood • Use personal protective equipment: safety glasses, butyl gloves • In case of emergency: • Use medication

6. Exposure route HF stomach Inclusion in the body lungs skin

7. Effects from HF poisoning penetrates to the bone, without immediate pain! • Inhalation Stinging, sore throat, coughing, shortness of breath • Skin exposure Stinging, redness, pain, severe burns, penetrates to the bone, without immediate pain! • Eye exposure Stinging, redness, pain, poor eyesight • Ingestion Stinging, sore throat, stomach ache, vomiting, diarrhea, etching of mouth/throat, esophagus and stomach, shortness of breath through swelling upper airways

8. Effects from HF poisoning • Severity of effect depends on concentration and durationexposure • Severity varies from mild irritation to... burns and necrosis

9. Effects from HF poisoning

10. Effects from HF poisoning

11. First Aid HF General measures: • Check for danger to yourself! • Give First Aid • Alert security (44444) to arrange transport to the hospital (victim always goes to doctor, even when there are no complaints!) • HF-kit from security lodge goes with victim to hospital • Report incident to management and ESH-department

12. HF-kit

13. First Aid HF Skin exposure: • Remember to check for danger: wear gloves! • Remove contaminated clothing (use scissors where necessary) • Irrigate with copious amounts of water for 3 minutes • Apply calcium gluconate hydro gel thickly • Leave for 2 minutes, remove gel, reapply • Repeat until pain is gone or victim is with a doctor

14. First Aid HF Eye exposure: • Remember to check for danger: wear gloves! • Irrigate with copious amounts of water for 15 minutes • Take victim to eye doctor

15. First Aid HF Inhalation: • Move victim to fresh air • A.s.a.p. to hospital → inhale nebulised solution Calcium gluconate 4% Ingestion: • Rince mouth with water • Give 200 ml Calcium gluconate 4% to drink (if not available: milk or water) • Do not induce vomiting!

16. Questions about HF?