Biomedical Engineering Reference
In-Depth Information
Table 1.3
(continued)
Measurement scenario
Metric
Primary purpose
Determination method
Fractionation by
Full-resolution impaction
and
Measurement by
Assay of each
Individual
Deposition sites
API mass deposited on an individual
CI stage (
M
i
)
Product acceptance
Direct quantifi cation after recovery and API assay
Area under the curve (
AUC
) of the
mass- weighted APSD
N/A
N/A
Mass median aerodynamic diameter
(
MMAD
)
N/A
N/A
Total (emitted) mass from the OIP
(
TM
)
Product acceptance
Mathematical
: direct sum of API mass recovered from
both sizing and non-sizing components of CI system
Units
API mass
deposited
Grouped stages
Mathematical
: direct sum of API mass recovered from
selected collections of adjacent stages and external
components of CI system
Large particle mass (
LPM
)
Mathematical
: direct sum of API mass recovered from
stages with
d
50
sizes larger than boundary diameter
Small particle mass (
SPM
)
Mathematical
: direct sum of API mass recovered from
stages with
d
50
sizes smaller than boundary diameter
Search WWH ::
Custom Search