105.12 - Respirable Materials

SRMs 1878b and 1879b are crystalline silica materials with particle size in the respirable range. They are intended for use in determining, by x-ray diffraction, the levels of respirable silica in an industrial atmosphere according to National Institute for Occupational Safety and Health (NIOSH) Analytical Method 7500 or equivalent methods. NOTE:These SRMs are not certified for particle size.

Also see Table 105.10 Respirable Materials on Filter Media

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and uncertainties, the certificate is the only official source.

SRM Status Description Unit of Issue Measurand(s)
1648a
Now Selling Urban Particulate Matter 2 g Certified: 25 elements, 21 PAHs, 7 PCBs
Reference values: 8 elements, 54 PAHs, 16 nitro-PAHs, 46 PCBs, 34 pesticides
1649b
Now Selling Urban Dust 2 g Certified: 3 elements, 23 PAHs, 13 PCBs, 4 pesticides
Reference values: 1 element, 38 PAHs, 16 nitro-PAHs, 49 PCBs, 34 pesticides
1650b
Now Selling Diesel Particulate Matter 200 mg Certified: 26 PAHs, 7 nitro-PAHs
Reference values: 59 PAHs, 16 nitro-PAHs
1866b
Out of Stock Common Commercial Asbestos set (3) chrysotile, amosite, crocidolite
1877
Now Selling Beryllium Oxide Powder 20 g 35.76 % beryllium
1878b
Now Selling Respirable Alpha Quartz (Quantitative X-Ray Powder Diffraction Standard) 5 g 96.73 % alpha quartz
1879b
Now Selling Respirable Cristobalite (Quantitative X-Ray Powder Diffraction Standard) 5 g 93.98 % cristobalite
1975
Out of Stock Diesel Particulate Extract 4 x 1.2 mL Certified: 8 PAHs, 4 nitro-PAHs
Reference values: 23 PAHs, 15 nitro-PAHs, mutagenicity, residue mass
2583
Now Selling Trace Elements in Indoor Dust (Nominal Mass Fraction of 90 mg/kg Lead)<br /> 8 g Certified: 5 elements
2584
Now Selling Trace Elements in Indoor Dust (Nominal Mass Fraction of 1 % Lead)<br /> 8 g Certified: 5 elements
Reference values: 10 elements
2585
Now Selling Organic Contaminants in House Dust 10 g Certified: 33 PAHs, 30 PCBs, 4 pesticides, 15 PBDEs
Reference values: 33 PAHs, 12 PCBs, 10 pesticides, 3 PBDEs
5 polycyclic musks, 8 PFAAs
2786
Now Selling Fine Atmospheric Particulate Matter (Mean Particle Diameter < 4 µm) 100 mg to 140 mg Certified: 25 PAHs, 2 nitro-PAHs, 2 PBDE, 8 elements
Reference values: 27 PAHs, 5 nitro-PAHs, 13 elements, 3 sugars, 5 PBDE, 12 dioxins, 15 furans
2787
Now Selling Fine Atmospheric Particulate Matter (Mean Particle Diameter < 10 µm) 100 mg to 140 mg Certified: 23 PAHs, 2 nitro-PAHs, 2 PBDE, 7 elements
Reference values: 27 PAHs, 5-nitro-PAHs, 5 PBDE, 14 elements, 3 sugars, 12 dioxins, 15 furans
2975
Now Selling Diesel Particulate Matter 1 g Certified: 10 PAHs, 7 nitro-PAHs
Reference values: 36 PAHs, 
9 nitro-PAHs, particle-size, total extractable mass

- Certified values are normal font
- Reference values are italicized
- Values in parentheses are for information only