1. Formaldehyde Monitoring Presented by Michael D. Shaw

2. FORMALDEHYDE

3. HEALTH EFFECTS

4. CARCINOGENICITY EPA—“B1” Probable human carcinogen ACGIH—“A2” Suspected human carcinogen WHO (IARC)—“Group 1” Carcinogenic to humans

5. PHYSICAL SYMPTOMS 1-10 ppm—Eye irritation; lacrimation at 4 ppm 10-20 ppm—Coughing, heart palpitations, tight feeling in chest 50-100 ppm and above—Pulmonary edema, pneumonitis, death Contact with skin (formalin or HCHO-containing resins)—Dermatitis Male single oral ingestion 517 mg/kg (DHHS) Minimum Fatal Dose Level —

6. OCCUPATIONAL EXPOSURE STANDARDS ACGIH TLV ® 0.3 ppm (Ceiling) OSHA PEL 0.75 ppm (TWA) 2 ppm (Ceiling) NIOSH REL 0.016 ppm (TWA) 0.1 ppm (Ceiling)

7. NIOSH ANALYTICAL METHODS

8. Method 2016 most sensitive Silica gel/2,4-dinitrophenylhydrazine Method 2541 Sorbent tube/2-hydroxymethyl piperidine (1,8-dihydroxynaphthalene-3,6-disulfonic acid) Impinger/chromotropic acid Method 3500

9. INSTRUMENT METHODS— PRACTICAL AND OTHERWISE FTIR Semi-automated wet chemical methods Electrochemical (converted alcohol detectors) Interscan purpose-designed HCHO sensor

10. INTERSCAN FORMALDEHYDE SENSOR

11. ADVANTAGES Good sensitivity 0-500 parts-per- billion full scale measuring range available Excellent specificity Little effect from alcohols Full interference info on gasdetection.com website Quick response time Rise time to 50% Rise time to 90%30-45 seconds 5-10 seconds

12. APPLICATIONS HCHO ubiquitous in the workplace, however… Biggest applications have been in the forest products industry e.g., monitoring of emissions from manufactured wood products

13. Interscan’s HCHO sensor is the heart of Georgia Pacific’s DYNAMIC MICROCHAMBER Board compliance testing time reduced from 2 weeks to less than an hour

16. MONITORING PRODUCTS OFFERED BY

17. PORTABLE ANALYZER

18. CONTINUOUS MONITORING SYSTEM SINGLE POINT APPLICATION

19. CONTINUOUS MONITORING SYSTEM TWO POINT APPLICATION

20. CONTINUOUS MONITORING SYSTEM MULTI-POINT (THREE OR MORE) APPLICATION

21. ARC-MAX ® DATA ACQUISITION, ARCHIVING, AND REPORTING

22. ARC-MAX ® MAIN SCREEN

23. ARC-MAX ® SHIFT REPORT

24. ARC-MAX ® TRENDING

25. ARC-MAX ® ALARM LOG

26. For Survey Applications, We Recommend Our Nomad Data Logger 16-bit resolution Models available for voltage and 4-20mA inputs Self-contained units also available for temperature, humidity and pH Sampling rate adjustable—1 second to 10 hours in 1 second intervals Storage capacity—522,240 readings Excellent software included

27. Visualize your measurement session with an auto-scaling time history graph

28. Time history graph detail screen Zoomed in on particular portion of the curve

29. Ability To View All Individual Data Points

31. CONCLUDING REMARKS We've covered the health effects and occupational standards for formaldehyde We've looked at wet chemical and instrumental methods for formaldehyde We've seen a special application of Interscan's HCHO sensor

32. SPECIAL THANKS TO PROFESSOR GEORGE BYRNS the Prairie Section of the American Industrial Hygiene Association and