Item no.
NIST-2950a
Unit
30 filters plus 30 blanks
Shipment details
No Dangerous Good /not restricted
Back to your search result
Description
This Standard Reference Material (SRM®) is intended primarily for the calibration of X-ray diffraction (XRD) spectrometers for the determination of respirable alpha quartz using National Institute for Occupational Safety and Health (NIOSH) Method 7500, or the equivalent. The SRM was produced by depositing a known amount of SRM-1878a Respirable Alpha Quartz, as a slurry on a 25 mm diameter polyvinyl chloride (PVC) filter. A unit of SRM-2950a consists of 35 blank PVC filters containing no alpha quartz and 5 loaded PVC filters at each of the following nominal levels: 5 µg, 10 µg, 20 µg, 50 µg, 100 µg, 250 µg, and 500 µg. The blank filters are stored in seven petri dishes each containing five filters. The loaded filters are stored in seven petri dishes each containing five filters of the nominal level. /// Sample value(s) - please ask for current certificate.
Hazards
Contents
Miscellaneous
Certificate of Analysis (specimen)
Reference Material CoA specimen: for the current lot, please contact your customer service representative at info@labmix24.com
Product data sheet
View all available product details e.g. description, analytes/parameters, CAS Number, concentrations/values, sales unit/product format, method, source, transport information
NIST provides over 1300 Standard Reference Materials® as well as articles and practice guides describing the development, analysis and use of SRMs.
NIST Standard Reference Materials are used by analytical laboratories in industry, academia and government in order to facilitate commerce and trade and to advance research and development. The SRMs are produced by the engineering laboratory, the material measurement laboratory, and the physical measurement laboratory at NIST. They are available for chemical composition, physical properties, and engineering materials.