http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1341804-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2ad437794a227405e59068a096d91a63 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N15-0618 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-3504 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-35 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N15-06 |
| filingDate | 1972-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1973-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1341804-A |
| titleOfInvention | Determination of crystalline silica and other mineral dusts in air |
| abstract | 1341804 Infrared spectrophotometric determination of particles in gases MINE SAFETY APPLIANCES CO 8 June 1972 [27 July 1971] 26880/72 Heading G2J Crystalline mineral particles suspended in a gas are determined by passing the gas through a membrane filter transparent to infrared radiation to collect any such particles on the filter, and placing the filter with its collected particles in an analytical beam of an infrared spectrophotometer to produce a spectrum of the particles on the filter. In a second beam of the spectrophotometer is placed an unused and clean membrane to act as a reference. Preferably coarse particles larger than 10 microns are first removed from the gas before it is passed through the filter. More particularly the gas is air and the particles are of crystalline silica. |
| priorityDate | 1971-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID457707758 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID24261 |
Total number of triples: 14.