Download presentation
Presentation is loading. Please wait.
Published byMagdalen Chambers Modified over 8 years ago
2
Isocyanate Comparative Sampling Method Ann Anderson – IH Tech/Ergo Rick Hurd – IH Tech/Ergo Rick Hurd – IH Tech/Ergo Arlington Assembly Plant Larry Hunt – GM Regional IH
3
DuPont 2K Clear Coat Paint part A (resin, solvent, additives) + part B (HDI monomer, IPDI monomer, HDI polymer, IPDI polymer, solvent, adds.) HDI polymer, IPDI polymer, solvent, adds.)______________________________ = 2 Part Polyurethane (A+B)
4
Common Sample Methods for Isocyanate Impinger Glass Fiber Filter Cassette Asset EZ4
5
Midget Impingers
6
Isocyanate Sample Method Pros and Cons Impinger –Inconvenient for Personal samples. –Contains liquid solution that can leak –Glass impinge may break –Least desired sample collection for employee
7
Filter Cassette & Parts
8
Isocyanate Sample Method Pros and Cons Filter Cassettes –Easy to use in the field –Short Shelf life –Filters place in desorption container –Storage and shipping with temperature control, on ice.
9
Asset EZ4 Dry Sampler
10
Isocyanate Sample Method Pros and Cons Asset EZ4 Dry Sampler –Denuder selection collects the vapors phase –Filter collects the aerosol particulates –Low detection limits, high capacity –Forms Stable derivatives –Low flow rate challenge to maintain pre and post calibration –Shipping: no temperature control and longer shelf life.
11
Sample Train for Stand for Tests
13
Asset Tubes & Cassettes for Isocyanate Tests
14
Tool to Remove Cassette Top Cassette Wrench
15
Preparation to Open Cassette to Remove Filter
16
Cassette Filter Pad Removal
17
Vile for Filter from Cassette
18
Samples Ready to Ship
19
Results for Comparison Sample General Area samples inside Booth B Vestibule - - approx. 5 ft. off floor, Not a work area B booth inside vestibule. Employees not in this area. Five feet off the floor on a stand RH00028 9 0.50 mg/m 3 Isophorone Diisocyanate (IPDI) (CAS# 4098- 71-9)< 0.84 ppb 5.0 ppb Methylene Bisphenyl Isocyanate (MDI) (CAS# 101-68-8)< 0.3 ppb 5.0 ppb Hexamethylene Diisocyanate (HDI) (CAS# 822-06-0)0.9 ppb 5.0 ppb RH00029 8 0.50 mg/m 3 Isophorone Diisocyanate (IPDI) (CAS# 4098- 71-9) < 0.1 ppb5.0 ppb Methylene Bisphenyl Isocyanate (MDI) (CAS# 101-68-8) < 0.09 ppb5.0 ppb Hexamethylene Diisocyanate (HDI) (CAS# 822-06-0) 0.94 ppb5.0 ppb General Area samples inside a Vestibule area - - approx. 5 ft off floor, Not a work area A booth inside vestibule area. Employees not in this area. Five feet off the floor on a stand RH00029 0 0.50 mg/m 3 Isophorone Diisocyanate (IPDI) (CAS# 4098- 71-9)< 0.84 ppb 5.0 ppb Methylene Bisphenyl Isocyanate (MDI) (CAS# 101-68-8)< 0.3 ppb 5.0 ppb Hexamethylene Diisocyanate (HDI) (CAS# 822-06-0)< 0.45 ppb 5.0 ppb RH00029 9 0.50 mg/m 3 Isophorone Diisocyanate (IPDI) (CAS# 4098- 71-9) < 0.13 ppb5.0 ppb Methylene Bisphenyl Isocyanate (MDI) (CAS# 101-68-8) < 0.12 ppb5.0 ppb Hexamethylene Diisocyanate (HDI) (CAS# 822-06-0) 0.36 ppb5.0 ppb
20
Wentzville Assembly Sample Method
21
Sample at Wentzville
22
Calibration Pocket Pump Wentzville
23
Data Calibration Pocket Pump SURVEY 259688 RLH000094 POCKET PUMP 32115 POST CAL 09-30-2015 ProductDEFENDER 510 Serial Number129638 SampleDryCal mL/min DryCal Avg. mL/min Time 1208.34208.3415:49:45 2208.33208.3415:49:54 3208.36208.3415:50:04 4208.31208.3415:50:13 5208.32208.3315:50:22 6208.40208.3415:50:32 7208.43208.3615:50:41 8208.35208.3615:50:51 9208.44208.3615:51:00 10208.41208.3715:51:10
24
Summary Sampling with GFF Cassette –Temperature Control –No data on Total Isocyanate available Sampling with Asset EZ4 –No temperature Requirements –Low Flow Rate challenge –Easy for Personal samples –Total Isocyanate data and detection level
25
Recommendation Sample for isocyanate with the Asset method Provide Pocket sample pumps for isocyanate testing.
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.