| Document ID (ISN) | 38981 |
| CIS number |
83-124 |
| ISSN - Serial title |
0002-8894 - American Industrial Hygiene Association Journal |
| Year |
1982 |
| Convention or series no. |
|
| Author(s) |
Rosenberg C., Pfäffli P. |
| Title |
A comparison of methods for the determination of diphenylmethane diisocyanate (MDI) in air samples |
| Bibliographic information |
Mar. 1982, Vol.43, No.3, p.160-163. 16 ref. |
| Abstract |
High-performance liquid chromatography (HPLC), colorimetric, and continuous tape monitoring methods were compared in the determination of concentrations of MDI in the air of 2 different industrial environments and a laboratory exposure chamber. Neither the colorimetric nor the tape monitoring methods were sensitive enough to determine concentrations of MDI < 0.2 x 10-2 and < 1 x 10-2mg/m3 respectively. Determinations made with the HPLC method at different rates of sampling yielded similar results on simultaneous sampling even at concentration levels of 0.2 x 10-2mg/m3, indicating that this method is useful for both sampling and analysis. The volumes during sampling were in the 5-150l range. The flow rate chosen was 2.5-3.0l/min. The concentration of MDI in the atmospheres of the workplaces was below the current threshold limit value of 0.2mg/m3. |
| Descriptors (primary) |
high performance chromatography; determination in air; sampling and analysis; diphenylmethane diisocyanate |
| Descriptors (secondary) |
evaluation of equipment; isocyanates; comparative study; colorimetry; exposure evaluation |
| Document type |
D - Periodical articles |
| Subject(s) |
Toxic and dangerous substances
|
| Broad subject area(s) |
|
| Browse category(ies) |
Isocyanates
Cyano compounds
|
