| Document ID (ISN) | 55954 |
| CIS number |
91-934 |
| ISBN(s) |
91-7045-038-2 |
| Year |
1989 |
| Convention or series no. |
Arbete och hälsa 1989:26
|
| Author(s) |
Lindahl R., Levin J.O., Andersson K. |
| Title |
Validation of a diffusive sampler for reactive compounds |
| Original title |
Utvärdering av en diffusionsprovtagare för reaktiva ämnen [in Swedish] |
| Bibliographic information |
Arbetsmiljöinstitutet, Förlagstjänst, 171 84 Solna, Sweden, 1989. 21p. Illus. 8 ref. |
| Abstract |
A commercially available diffusive device for reactive compounds has been validated for sampling of formaldehyde in laboratory and field trials. The sampler consists of a filter impregnated with 2,4-dinitrophenylhydrazine, phosphoric acid and glycerine mounted in a polypropylene housing. The uptake rate was 25.2mL/min, with a relative standard deviation of 7%. The uptake rate was independent of sampling time, relative humidity and concentration. The uptake rate was only slightly affected when air velocities ranged from 0.05 to 1m/s, and field trials showed that the sampler could be used at very low wind velocities (<0.02m/s). Sensitivity was 2µg/m3 in a 24-hour sample, making the sampler useful for indoor air monitoring of low formaldehyde levels. The sampler can be stored at least 3 months at -18°C prior to sampling. |
| Descriptors (primary) |
formaldehyde; air sampling; passive dosimeters |
| Descriptors (secondary) |
report; equipment testing; sampling instruments |
| Document type |
E - Books, reports, proceedings |
| Country / State or Province | Sweden |
| Subject(s) |
Toxic and dangerous substances
|
| Broad subject area(s) |
Chemical safety
|
| Browse category(ies) |
Aldehydes
|
