|
|
||||||||||||||||||||
|
|||||||||||||||||||||
|
|||||||||||||||||||||
|
In- Spec Transmittance Standards |
|
Transmittance is the light which passes through the sample. The originating light comes from the instrument's light source, some of which is absorbed and reflected. The transmittance value, often represented by a precent, is read by the instrument's detector.
Transmittance follows the Beer-Lambert law, like absorbance.
For liquids, Absorbance = - log10 (Transmittance).
Light in - Reflected Light - Transmitted Light = Absorbance
Expensive neutral density filter were historically the only way to validate an instrument’s transmittance readings. The In-Spec® product line can provide inexpensive, ready-to-use pourable bottles to help your validation needs.
Our kit #8446 is recommended by BMG Labtech for use with the Nephelostar instrument. This kit includes 0%, 20%, 40%, 60%, 80%, and 100%T standards at 635nm. These standards are also available individually. Custom transmittance standards can be made up upon request at any wavelength.
The In-Spec® transmittance standards are NIST traceable and completely non-toxic.
CHECK OUT THE IN-SPEC® WEBSITE FOR MORE INFORMATION: www.in-spec.com
 OR CONTACT THE PRODUCT LINE MANAGER, RACHEL STAPF AT rstapf@gfschemicals.com or 1-800-838-5567 ext. 121.
 In-Spec® is a registered trademark of GFS Chemicals
|
|
