Document ID (ISN) | 38045 |
CIS number |
82-1261 |
ISSN - Serial title |
0003-2654 - Analyst |
Year |
1981 |
Convention or series no. |
|
Title |
Sample re-radiation effects in the quantitative analysis of crystalline silica in foundry samples by infrared spectrophotometry |
Bibliographic information |
Nov. 1981, Vol.106, p.1240-1242. Illus. 19 ref. |
Abstract |
In the quantitative analysis of crystalline silica in samples of respirable dust from foundries, compounds such as graphite and magnetite act as black body radiators and cause attenuation of the absorption bands of interest in the infrared (IR) spectrum. The use of a 9-µm germanium cut on/blocking filter reduces sample re-radiation effects to such a level that the results from inexpensive IR spectrophotometer are within 10% of those obtained by an asynchronously double-chopped instrument or by x-ray diffraction. |
Descriptors (primary) |
silica; respirable dust; foundries; dust analysis; dust measurement |
Descriptors (secondary) |
infrared spectrophotometry; interferences; description of technique; accuracy |
Document type |
D - Periodical articles |
Subject(s) |
Dust, aerosols and related diseases
|
Broad subject area(s) |
|
Browse category(ies) |
Foundries, metalcasting and forging operations
|