GB1326718A - Apparatus for the determination of flammability and smoke density of polymers - Google Patents
Apparatus for the determination of flammability and smoke density of polymersInfo
- Publication number
- GB1326718A GB1326718A GB4373871A GB4373871A GB1326718A GB 1326718 A GB1326718 A GB 1326718A GB 4373871 A GB4373871 A GB 4373871A GB 4373871 A GB4373871 A GB 4373871A GB 1326718 A GB1326718 A GB 1326718A
- Authority
- GB
- United Kingdom
- Prior art keywords
- smoke
- flammability
- oxygen
- chamber
- burning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
1326718 Determining flammability and smoke density MICHIGAN CHEMICAL CORP 20 Sept 1971 [21 Sept 1970] 43738/71 Headings G1A and G1X In an apparatus for determining the flammability and smoke density of an organic polymer material, the material is first caused to burn in a controlled oxygen-nitrogen atmosphere in one chamber to determine its flammability and the resulting smoke is measured by optical means in a further chamber. Oxygen and nitrogen are passed, as shown, via shut off valves 14 and 16, fire metering valves 18 and 20 and flowmeters 22 and 24 to a bed of glass beads 30 in a chamber 37, from where they pass via a tube 31 to help maintain the burning of a sample polymer 34. The flammability may be determined by measuring the oxygen index which is defined as the minimum volume fraction of oxygen in an atmosphere of oxygen and nitrogen which is needed to sustain the candlelike burning of a polymeric specimen. The temperature of the sample 34 and the surrounding area may be varied by means of a heating coil 36. The density of the smoke formed by the burning is measured by a light source 40 and a photo-cell 42. A further lens 44 is provided to enable the smoke to be photographed to determine the size and nature of the particles making up the smoke. The exit 46 can provide a holder for a filter paper so that the resulting spot can be classified by its degree of darkness. The light source and the photo-cell may slidably mounted at the wall defining said second chamber.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7377270A | 1970-09-21 | 1970-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1326718A true GB1326718A (en) | 1973-08-15 |
Family
ID=22115715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4373871A Expired GB1326718A (en) | 1970-09-21 | 1971-09-20 | Apparatus for the determination of flammability and smoke density of polymers |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA943786A (en) |
| DE (1) | DE2146331A1 (en) |
| FR (1) | FR2112962A5 (en) |
| GB (1) | GB1326718A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529163A (en) * | 2013-10-29 | 2014-01-22 | 山东省产品质量监督检验研究院 | Portable oxygen index testing device and application method |
| CN107782856A (en) * | 2017-12-06 | 2018-03-09 | 公安部四川消防研究所 | A kind of fire smoke antismoke agent Performance Test System and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467065B (en) * | 2015-12-30 | 2017-08-15 | 重庆精榜高分子材料有限公司 | A kind of oxygen index (OI) tester |
-
1971
- 1971-09-16 FR FR7133415A patent/FR2112962A5/fr not_active Expired
- 1971-09-16 DE DE19712146331 patent/DE2146331A1/en active Pending
- 1971-09-20 GB GB4373871A patent/GB1326718A/en not_active Expired
- 1971-09-20 CA CA123,220A patent/CA943786A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529163A (en) * | 2013-10-29 | 2014-01-22 | 山东省产品质量监督检验研究院 | Portable oxygen index testing device and application method |
| CN103529163B (en) * | 2013-10-29 | 2016-05-04 | 山东省产品质量监督检验研究院 | A kind of portable oxygen index testing arrangement and using method |
| CN107782856A (en) * | 2017-12-06 | 2018-03-09 | 公安部四川消防研究所 | A kind of fire smoke antismoke agent Performance Test System and method |
| CN107782856B (en) * | 2017-12-06 | 2023-12-22 | 公安部四川消防研究所 | Fire smoke suppressor performance test system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2112962A5 (en) | 1972-06-23 |
| DE2146331A1 (en) | 1972-03-23 |
| CA943786A (en) | 1974-03-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |