Precaution, Pretection and Safety, all in FireTC
firetc@firetc.com
 
Inquiry For Fire Testing
 
Recommended Service
Hot Fire test center
 
Your location: Home » Fire test center » Test Equipment » Text

NBS Chamber – Fire Test for Smoke Density

Zoom  Zoom Issue Date:2011-08-20   Source:Firetc   Browse:3660
The test principle of this tester is lambert-beers laws, which expresses smoke density by the ratio of the final amount of optical transmission to initial amount of optical transmission, and calculates max ratio of optical density by minimal percentage of
 
NBS Chamber – Fire Test for Smoke Density

This tester has been applied to determine smoke density for few years, and wildly accepted by many industries, such as plastics, rubbers, cover fabrics, painted surfaces, woods, etc.

NBS Chamber     ISO 5659-2
The test principle of this tester is lambert-beers laws, which expresses smoke density by the ratio of the final amount of optical transmission to initial amount of optical transmission, and calculates max ratio of optical density by minimal percentage of optical transmission. The main measured indexes are mass of optical density (MOD), optical density of smoke (OD), and ratio optical density Ds.
And we can carry on qualitative analysis of smoke toxicity when equipped with apparatuses, such as gas detector tube, ion chromatograph, liquid chromatograph, etc.

The NBS Chamber is applicable to the following test method.
>  ISO 5659-2: Smoke generation -- Part 2: Determination of optical density by a single-chamber test
>  ASTM E662: Standard Test Method for Specific Optical Densityof Smoke Generated by Solid Materials
>  BS 6401: Method for Measurement, in the Laboratory, of the Specific Optical Density of Smoke Generated by Materials
>  GB/T 8323-08: Plastic - Smoke generation
 
 
[ Fire test center Search ]  [ ]  [ Forword to friends ]  [ Print ]  [ Close ]  [ Back to Top ]

 

 
 
Home | About us | Contact | Terms & Conditions | Copyright | Site Map | Friend link | Guestbook | Old Version | 闽ICP备09009213号
©2013-2015 FIRETC.NET All Rights Reserved   ICP:闽ICP备09009213号-4