SRM

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.


SRMDescriptionUnit of Issue   Measurand(s)
1648a
Now Selling
Urban Particulate Matter2 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 Dust2 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 Matter200 mg Certified: 26 PAHs, 7 nitro-PAHs
Reference values: 59 PAHs, 16 nitro-PAHs
1866b
Out of Stock
Common Commercial Asbestosset (3) chrysotile, amosite, crocidolite
1877
Now Selling
Beryllium Oxide Powder20 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 Extract4 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)8 g Certified: 5 elements
2584
Now Selling
Trace Elements in Indoor Dust (Nominal Mass Fraction of 1 % Lead)8 g Certified: 5 elements
Reference values: 10 elements
2585
Now Selling
Organic Contaminants in House Dust10 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 Matter1 g Certified: 10 PAHs, 7 nitro-PAHs
Reference values: 36 PAHs,
9 nitro-PAHs, particle-size, total extractable mass

301.1 - Particle Size (powder and solid forms)

These SRMs are intended for evaluating and calibrating specific types of particle size measuring instruments, including light scattering, electrical zone flow-through counters, optical and scanning electron microscopes, sedimentation systems, and wire cloth sieving devices.
SRMs 1003c, 1004b, 1017b, 1018b and 1019b each consist of soda-lime glass beads covering a particular size distribution (PSD) range. RM 8010 is a three bottle set of different sands (A, C and D), intended for use in sieving only, and covers the sieve size range from 30 mesh to 325 mesh.
SRM 659 consists of equiaxed silicon nitride particles measured using sedimentation. SRM 1978 consists of granular, irregular shaped zirconium oxide particles measured using sedimentation. SRM 1982 consists of spheroidal particles measured using scanning electron microscopy, laser scattering, and sieving.
SRM 1961 is monodisperse latex particles in a water suspension produced by the National Aeronautics and Space Administration (NASA).
RMs 8011, 8012 and 8013 are gold nanoparticles in water.


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.
 

SRMDescriptionUnit Size   Particle Diameter Distribution
659
No longer available from NIST
Particle Size Distribution Standard for Sedigraph Calibrationset (5) 0.2 to 10 µm
1003c
Now Selling
Glass Beads - Particle Size Distribution28 g 20 to 45 µm (635 to 325 mesh)
1004b
Now Selling
Glass Beads - Particle Size Distribution43 g 40 to 150 µm (270 to 120 mesh)
1017b
Now Selling
Glass Beads - Particle Size Distribution (100 μm to 400 μm diameter range)70 g 100 to 400 µm (140 to 45 mesh)
1018b
Now Selling
Glass (Particle Size)87 g 220 to 750 µm (60 to 25 mesh)
1019b
Now Selling
Glass (Particle Size)200 g 750 to 2450 µm (20 to 10 mesh)
1021
Now Selling
Glass ( Particle Size)4 g 2 to 12 µm
1690
Now Selling
Polystyrene Spheres (Nominal Diameter 1 µm)5 mL 0.895 µm
1691
Now Selling
Polystyrene Spheres (Nominal Diameter 0.3 µm)5 mL 0.269 µm
1961
Now Selling
Polystyrene Spheres 30 µm Diameter Polystyrene Spheres5 mL 29.64 µm
1963a
Now Selling
Polystyrene Spheres (Nominal Diameter 100 nm) 5 mL 0.1018 µm
1964
Now Selling
Polystyrene Spheres (Nominal Diameter 60 nm)5 mL 0.06039 µm
1978
Now Selling
Particles Size Distribution Standard for Gravity Sedimentation5 g 0.33 to 2.19 µm
1982
Now Selling
Thermal Spray Powder – Particle Size Distribution Yttria-Stabilized Zirconia (Spheroidal)10 g 10 to 150 µm
1984
Now Selling
Thermal Spray Powder - Particle Size Distribution Tungsten Carbide/Cobalt (Acicular)14 g 9 to 30 µm
1985
Out of Stock
Thermal Spray Powder - Particle Size Distribution Tungsten Carbide/Cobalt (Spheroidal)14 g 18 to 55 µm
8010
Now Selling
Sand for Sand Sieve Analysis3 x 130 g A (30 to 100 mesh) C (70 to 200 mesh)D (100 to 325 mesh)
8011
Out of Stock
Gold Nanoparticles (Nominal 10 nm Diameter)2 x 5 mL 10 nm
8012
Out of Stock
Gold Nanoparticles, Nominal 30 nm Diameter2 x 5 mL 30 nm
8013
Out of Stock
Gold Nanoparticles, Nominal 60 nm Diameter2 x 5 mL 60 nm
8634
Now Selling
Ethylene Tetrafluoroethylene for Particle Size Distribution and Morphology20 mL highly polydisperse, irregular morphology
8988
Now Selling
Titanium Dioxide Powder - Particle Size Distribution6 g 0.1 to 0.5 µm
 

301.2 - Cement and Coal Fly Ash Fineness

SRM 46h is intended to determine sieve residue according to ASTM C430. Each set consists of 10 sealed vials, each containing approximately 5g of cement.
SRM 114q is intended for calibrating the Blaine fineness meter according to the latest issue of ASTM C204, to calibrate the Wagner turbidimeter according to ASTM C115, to determine sieve residue according to ASTM C430, and to verify procedure for particle size distribution by a laser diffraction method (no-standard method available). Each set consists of 20 sealed vials, each containing approximately 5g of cement.

For further information see SP 260-161 , SP 260-166 , and SP 260-169.
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.

 

SRMDescriptionUnit of Issue   PropertiesValue
46h
Now Selling
Portland Cement Fineness Standard10 vials x 5 g Sieve Residue (45 µm residue) (No. 325)
Specific Surface area (Blaine)
7.43 %
364.4 m2/kg
114q
Out of Stock
Portland Cement Fineness Standard20 vials Residue on 45 µm (No. 325) sieve
Specific Surface area (Wagner turbidimeter)
Specific Surface area (Blaine Air Permeability Apparatus)
Particle Size Distribution
0.79 %
2183 cm2 g-13818 cm2 g-11-128 µm
2689
Now Selling
Coal Fly Ash3 x 10 g Sieve Residue (45 µm residue) (No. 325)12.8 %
2690
Now Selling
Coal Fly Ash3 x 10 g Sieve Residue (45 µm residue) (No. 325)8.0 %
2691
Now Selling
Coal Fly Ash3 x 10 g Sieve Residue (45 µm residue) (No. 325)10.5 %
 

301.5 - Particle Count Materials (powder and suspension forms)

These SRM and RM materials are intended for use in calibrating the response of particle sizing instrumentation, including optical counters, in accordance with National Fluid Power Association (NFPA) and ISO standard methods (NFPA/T2.9.6 R2-1998, ISO/FDIS 11171, ISO/FDIS 12103) for determining particle contamination in oils. SRM 2806b is certified for particle concentration and projected area diameter. It consists of a polydisperse, irregularly-shaped mineral dust suspended in 5606 hydraulic fluid. RMs 8631b and 8632 are mineral test dusts of medium and ultrafine particle size and can be used to prepare suspensions in other types of oils. 
NOTE: The same lot of medium test dust was used to produce SRM 2806b and RM 8631a, and is a derivative of Arizona Road Dust.

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.
 

SRMDescriptionUnit Size   Particle Size Range
2806b
Out of Stock
Medium Test Dust (MTD) in Hydraulic Fluid2 x 400mL 1 μm to 30 μm
8631b
Now Selling
Medium Test Dust (MTD)20 g 4 µm to 40 µm
8632
Now Selling
Ultra Fine Test Dust (UFTD)20 g 1 µm to 20 µm