Table 1.
Reference material ID | Supplier’s reference | Particle mass fraction [g/kg] | Method used for value assignment | Assigned particle size value (± uncertainty) or range [nm] |
---|---|---|---|---|
ERM-FD304 | ERM-FD304 | 2.5 | DLS (cumulants algorithm)a | 42.1 ± 0.6 |
SEM and TEMc | 27.8 ± 1.5 | |||
ERM-FD101b | ERM-FD101b | 2.5 | DLS (cumulants algorithm)a | 89.5 ± 2.3 |
DLS (distribution calculation algorithms)b | 93 ± 4 | |||
SEM and TEMc | 83.7 ± 2.2 | |||
SEM and TEMd | 83.5 ± 2.2 | |||
PTAe | 82 ± 4* | |||
PTAf | 87 ± 4* | |||
PTAg | 82 ± 4* | |||
ERM-FD102 | ERM-FD102 | Size class A—10.0 (nominal 20 nm) Size class B—2.5 (nominal 80 nm) |
DLS (distribution calculation algorithms)b | 17.8 ± 1.5 88.5 ± 2.2 |
SEM and TEMc | 18.2 ± 1.6 84.0 ± 2.1 |
|||
SEM and TEMd | 18.3 ± 1.7 83.3 ± 2.3 |
|||
PTAe | 78 ± 5 | |||
PTAf | 82 ± 4 | |||
PTAg | 79.2 ± 2.2 | |||
PSL-21 | 3020A | 10 | DLS | 21 ± 1.5 |
PSL-31 | 3030A | 10 | DLS | 31 ± 3 |
PSL-41 | 3040A | 10 | DLS | 41 ± 4 |
PSL-46 | 3050A | 10 | TEM | 46 ± 2 |
DLS | 45–51 | |||
PS-59 | 3060A | 10 | TEM | 59.0 ± 2.5 |
10 | DLS | 58–65 | ||
PSL-81 | 3080A | 10 | TEM | 81 ± 3 |
DLS | 79–84 | |||
PSL-100 | 3100A | 10 | TEM | 100 ± 3 |
DLS | 98–103 | |||
PSL-125 | 3125A | 10 | TEM | 125 ± 3 |
DLS | 120–130 | |||
PSL-147 | 3150A | 10 | TEM | 147 ± 3 |
DLS | 146–153 | |||
PSL-200 | 3200A | 10 | TEM | 200 ± 6 |
DLS | 196–206 |
*Certified values used for trueness assessment
aSphere-equivalent intensity-weighted harmonic mean hydrodynamic diameter
bSphere-equivalent intensity-weighted arithmetic mean hydrodynamic diameter
cArea-equivalent number-weighted circular modal diameter
dArea-equivalent number-weighted circular median diameter
eSphere-equivalent number-weighted modal hydrodynamic diameter
fSphere-equivalent number-weighted arithmetic mean hydrodynamic diameter
gSphere-equivalent number-weighted median hydrodynamic diameter