| Message: | Scope of application
The touch screen computer dual control smoke density tester for building materials is developed according to the technical conditions specified in the national standard GB / T8627-2007 "test method for smoke density of burning or decomposition of building materials". It is suitable for the determination of static smoke yield of building materials and their products and other materials.
Applicable standards
Design standard: GB / T8627-2007 test method for smoke density of combustion or decomposition of building materials
Standard: GB / T8627、 ASTM D2843、 ASTM E662、 ISO 5659
Technical parameter
1. The maximum smoke density (MSD) and smoke density rating (SDR) of the specimen are 0-100% continuously measurable and automatically calculated;
2. The calibration error of the standard filter is not more than 3%; each equipment is equipped with three standard filters, which are representative of the data of light source calibration
3. The working pressure of the Bunsen lamp was (210 ± 5) kPa;
4. Benson lamp applied flame to the sample for 4 min;
5. Combustion lamp: Bunsen lamp, length 260mm, nozzle diameter 0.13MM, 45 ° angle with smoke box;
6. Photoelectric system: the light source is a bulb, power is 15W, working voltage is 6V;
7. Exhaust system: the machine is equipped with a powerful exhaust fan, which can exhaust the waste gas out of the room after the test;
8. Measurement range of smoke density: 0 ~ 100%;
9. Accuracy of smoke density measurement: ± 3%; |
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