Code | Item | Description | Dimensions |
A | Sample collection tubea | See Fig. 2 | 34.85-mm ID × 12-cm length |
B | Filterb | See Fig. 2 | 47-mm glass fiber filter |
C | Connector | (e.g., short metal coupling with low diameter branch to P3) |
8-mm ID |
D | Vacuum tubing | (e.g., silicon tubing with an outside diameter of 14 mm and an internal diameter of 8 mm) |
a length of suitable tubing 8 mm ID with an internal volume of 25 ± 5 mL. |
E | Two-way solenoid valvec | See Fig. 2 | 2-way, 2-port solenoid valve having an ID 8 mm and an opening response time of 100 milliseconds. |
F | Vacuum pumpd | See Fig. 2 | Pump must be capable of drawing the required flow rate through the assembled apparatus with the dry powder inhaler in the mouthpiece adapter. Connect the pump to the solenoid valve using short and wide (10-mm ID) vacuum tubing and connectors to minimize pump capacity requirements. |
G | Timere | See Fig. 2 | The timer switches current directly to the solenoid valve for the required duration. |
P1 | pressure tap | See Fig. 2 | 2.2-mm ID, 3.1-mm OD flush with the internal surface of the sample collection tube, centered and burr free, 59 mm from its inlet. The pressure taps P1, P2, and P3 must not be open to the atmosphere during dose collection. |
P1, P2, P3 | pressure measurementsf | ||
H | Flow-control valveg | See Fig. 2 | Adjustable regulating valve with maximum Cv 1h. |
a
An example being a Millipore product number XX40 047 00 (Millipore Corporation, 80, Ashby Road, Bedford, MA 01732), modified so that the exit tube has an ID 8-mm, fitted with Gelman product number 61631.
|
|||
b
A/E (Gelman Sciences Inc., 600 South Wagner Road, Ann Arbor, MI 48106) or equivalent.
|
|||
c
ASCO product number 8030G13, Automatic Switch Company, 60 Hanover Road, Florham Park, NJ 07932.
|
|||
d
Gast product type 1023, 1423, or 2565 (Gast Manufacturing Inc., PO Box 97, Benton Harbor, MI 49022) or equivalent.
|
|||
e
Eaton Product number 45610-400 (Eaton Corporation, Automotive Products Division, 901, South 12th Street, Watertown, WI 53094) or equivalent.
|
|||
f
An example being a PDM 210 pressure meter (Air-Neotronics Ltd., Neotronics Technology plc, Parsonage Road, Takeley, Bishop's Stortford, CM22 6PU, UK), or equivalent.
|
|||
g
Parker Hannifin type 8FV12LNSS (Parker Hannifin plc., Riverside Road, Barnstable, Devon EX31 1NP, UK) or equivalent.
|
|||
h
Flow Coefficient, as defined by ISA S75.02 Control valve capacity test procedure in Standards and Recommended Practices for Instrumentation and Control, 10th ed., Vol. 2, 1989. Published by Instrument Society of America, 67 Alexander Drive, P.O. Box 1227, Research Triangle Park, NC 27709, U.S.A.
|
Stage # | Number of Jets | Nozzle Diameter (mm) |
0 | 96 | 2.55 ± 0.025 |
1 | 96 | 1.89 ± 0.025 |
2 | 400 | 0.914 ± 0.0127 |
3 | 400 | 0.711 ± 0.0127 |
4 | 400 | 0.533 ± 0.0127 |
5 | 400 | 0.343 ± 0.0127 |
6 | 400 | 0.254 ± 0.0127 |
7 | 201 | 0.254 ± 0.0127 |
Code | Item | Description | Dimensions |
A | Connector | (e.g., short metal coupling with low diameter branch to P3) | 8-mm ID |
B | Vacuum tubing | (e.g., silicon tubing with an outside diameter of 14 mm and an internal diameter of 8 mm) | A length of suitable tubing 8 mm ID with an internal volume of 25 ± 5 mL. |
C | Two-way solenoid valvea | See Fig. 5 | 2-way, 2-port solenoid valve having an ID 8 mm and an opening response time of 100 milliseconds. |
D | Vacuum pumpb | See Fig. 5 | Pump must be capable of drawing the required flow rate through the assembled apparatus with the dry powder inhaler in the mouthpiece adapter. Connect the pump to the solenoid valve using short and wide ( 10-mm ID) vacuum tubing and connectors to minimize pump capacity requirements. |
E | Timerc | See Fig. 5 | The timer switches current directly to the solenoid valve for the required duration. |
P2, P3 | Pressure measurements | Determine under steady-state flow conditions with an absolute pressure transducer. | |
F | Flow control valved | See Fig. 5 | Adjustable regulating valve with maximum Cv 1. |
a
An example being ASCO product number 8030G13 (Automatic Switch Company, 60 Hanover Road, Florham Park, NJ 07932) or equivalent. See also Footnote h in Table 1.
|
|||
b
Gast product type 1023, 1423, or 2565 (Gast Manufacturing Inc., PO Box 97, Benton Harbor, MI 49022) or equivalent.
|
|||
c
An example being Eaton Product number 45610-400 (Eaton Corporation, Automotive Products Division, 901 South 12th Street, Watertown, WI 53094) or equivalent.
|
|||
d
Parker Hannifin type 8FV12LNSS, or equivalent (Parker Hannifin plc, Riverside Road, Barnstable, Devon EX31 1NP, UK). See also Footnote h in Table 1.
|
Code1 | Item | Description | Dimensions2 |
A,H | Jet tube | Metal tube screwed onto partition wall sealed by gasket (C), polished inner surface |
see Figure 8a |
B,G | Partition wall | Circular metal plate, diameter | 120 |
Thickness | see Figure 8a | ||
C | Gasket | e.g., PTFE | to fit jet tube |
D | Impaction plate | Porosity O sintered-glass disk, | see Figure 8a |
Diameter | |||
E | Glass cylinder | Plane polished cut glass tube | |
Height, including gaskets | 46 | ||
Outer diameter | 100 | ||
Wall thickness | 3.5 | ||
Sampling port (F) diameter | 18 | ||
Stopper in sampling port | ISO 24/25 | ||
J | Metal frame | L-profiled circular frame with slit | to fit impaction plate |
Inner diameter | |||
Height | 4 | ||
Thickness of horizontal section | 0.5 | ||
Thickness of vertical section | 2 | ||
K | Wire | Steel wire interconnecting metal frame and sleeve (two for each frame) Diameter |
1 |
L | Sleeve | Metal sleeve secured on jet tube by screw |
to fit jet tube |
Inner diameter | |||
Height | 6 | ||
Thickness | 5 | ||
M | Gasket | e.g., silicone | to fit glass cylinder |
N | Bolt | Metal bolt with nut (six pairs), length | 205 |
Diameter | 4 | ||
P | O-ring | Rubber O-ring, diameter × thickness | 66.34 × 2.62 |
Q | O-ring | Rubber O-ring, diameter × thickness | 29.1 × 1.6 |
R | Filter holder | Metal housing with stand and outlet | see Figure 8b |
S | Filter support | Perforated sheet metal, diameter Hole diameter Distance between holes (center-points) |
65 3 4 |
T | Snap-locks | ||
U | Multi-jet tube | Jet tube (H) ending in multijet arrangement |
see inserts Figure 8a |
V | Outlet | Outlet and nozzle for connection to vacuum |
Internal diameter 10 (Figure 8b) |
1
See Fig. 8.
|
|||
2
Measurements in mm unless otherwise stated.
|
Type | Code2 | Stage 1 | Stage 2 | Stage 3 | Stage 4 | Filter (Stage 5) |
Distance | 1 | 9.5 (.0, +.5) | 5.5 (.0, +.5) | 4.0 (.0, +.5) | 6.0 (.0, +.5) | n.a. |
Distance | 2 | 26 | 31 | 33 | 30.5 | 0 |
Distance | 3 | 8 | 5 | 5 | 5 | 5 |
Distance | 4 | 3 | 3 | 3 | 3 | n.a. |
Distance | 5 | 0 | 3 | 3 | 3 | 3 |
Distance | 63 | 20 | 25 | 25 | 25 | 25 |
Distance | 7 | n.a. | n.a. | n.a. | 8.5 | n.a. |
Diameter | c | 25 | 14 | 8.0(±0.1) | 21 | 14 |
Diameter | d | 50 | 30 | 20 | 30 | n.a. |
Diameter | e | 27.9 | 16.5 | 10.5 | 23.9 | n.a. |
Diameter | f | 31.75 (.05, +.00) | 22 | 14 | 31 | 22 |
Diameter | g | 25.4 | 21 | 13 | 30 | 21 |
Diameter | h | n.a. | n.a. | n.a. | 2.70 (±.05) | n.a. |
Diameter | j | n.a. | n.a. | n.a. | 6.3 | n.a. |
Diameter | k | n.a. | n.a. | n.a. | 12.6 | n.a. |
Radius4 | r | 16 | 22 | 27 | 28.5 | 0 |
Radius4 | s | 46 | 46 | 46 | 46 | n.a. |
Radius4 | t | n.a. | 50 | 50 | 50 | 50 |
Angle | w | 10 | 53 | 53 | 53 | 53 |
Angle | u | n.a. | n.a. | n.a. | 45 | n.a. |
Angle | v | n.a. | n.a. | n.a. | 60 | n.a. |
1
Measurements in mm with tolerances according to ISO 2768-m, unless otherwise stated.
|
||||||
2
See Fig. 8a.
|
||||||
3
Including gasket.
|
||||||
4
Relative centerline of stage compartment.
|
||||||
n.a.: not applicable.
|
Description | Dimension (mm) |
Preseparator (dimension asee Figure 9d) | 12.80 ± 0.05 |
Stage 11 Nozzle diameter | 14.30 ± 0.05 |
Stage 21Nozzle diameter | 4.88 ± 0.04 |
Stage 31 Nozzle diameter | 2.185 ± 0.02 |
Stage 41 Nozzle diameter | 1.207 ± 0.01 |
Stage 51 Nozzle diameter | 0.608 ± 0.01 |
Stage 61 Nozzle diameter | 0.323 ± 0.01 |
Stage 71 Nozzle diameter | 0.206 ± 0.01 |
MOC 1 | approximately 0.070 |
Cup Depth (Dimension bsee Figure 9b) | 14.625 ± 0.10 |
Collection cup surface roughness | 0.5 to 2 µm |
Stage 1 Nozzle to seal body distance 2dimension c | 0 ± 1.18 |
Stage 2 Nozzle to seal body distance 2dimension c | 5.236 ± 0.736 |
Stage 3 Nozzle to seal body distance 2dimension c | 8.445 ± 0.410 |
Stage 4 Nozzle to seal body distance 2dimension c | 11.379 ± 0.237 |
Stage 5 Nozzle to seal body distance 2dimension c | 13.176 ± 0.341 |
Stage 6 Nozzle to seal body distance 2dimension c | 13.999 ± 0.071 |
Stage 7 Nozzle to seal body distance 2dimension c | 14.000 ± 0.071 |
MOC Nozzle to seal body distance 2dimension c | 14.429 14.571 |
1
See Figure 9c.
|
|
2
See Figure 9b.
|
Use Eq. 2 to calculate D50,Q for flow rates, Q, in the range 30 to 100 L per minute with Qn = 60 L per minute. | ||
Stage | D50,Qn | x |
1 | 8.06 | 0.54 |
2 | 4.46 | 0.52 |
3 | 2.82 | 0.50 |
4 | 1.66 | 0.47 |
5 | 0.94 | 0.53 |
6 | 0.55 | 0.60 |
7 | 0.34 | 0.67 |
Mass | Apparatus 1 | Apparatus 2 | Apparatus 3a | Apparatus 4b | Apparatus 5d | Apparatus 6d | |||||||
Mouthpiece adapter |
Ai | | AiAi | | Ai | | Ai | | Ai | | Ai | | |
Preseparator | | | | | AP | | | | AP | | | | |
Stage 0 of impactor |
A0 | B0 | | | A0 | B0 | | | | | | | |
Stage 1 of impactor/ impinger |
A1 | B1 | A1 | | A1 | B1 | A1 | | A1 | B1 | A1 | B1 | |
Stage 2 of impactor/ impinger |
A2 | B2 | A2 | B2 | A2 | B2 | A2 | B2 | A2 | B2 | A2 | B2 | |
Stage 3 of impactor/ impinger |
A3 | B3 | A3 | B3 | A3 | B3 | A3 | B3 | A3 | B3 | A3 | B3 | |
Stage 4 of impactor/ impinger |
A4 | B4 | A4 | B4 | A4 | B4 | A4 | B4 | A4 | B4 | A4 | B4 | |
Stage 5 of impactor/ impinger |
A5 | B5 | A5 | B5 | A5 | B5 | | | A5 | B5 | A5 | B5 | |
Stage 6 of impactor/ impinger |
A6 | B6 | | | A6 | B6 | | | A6 | B6 | A6 | B6 | |
Stage 7 of impactor/ impinger |
A7 | B7 | | | A7 | B7 | | | A7 | B7 | A7 | B7 | |
Filter | AF | BF | AF | BF | AF | BF | AF | BF | AF | BF | AF | BF | |
Sums of Masses |
SAc | SBc | SAc | SBc | SAc | SBc | SAc | SBc | SAc | SBc | SAc | SBc | |
a
Stages 6 and 7 are omitted from Apparatus 3 at airflow rates >60 L per minute.
|
|||||||||||||
b
Stage 5 of Apparatus 4 is the filter stage (see Figure 8).
|
|||||||||||||
c
SA is the total drug mass recovered from the apparatus; SB is the mass of drug recovered from the impactor (Apparatus 1, 3, 5 and 6) or from the impactor stages beneath the uppermost stage (Apparatus 2 and 4).
|
|||||||||||||
d
For Apparatus 5 and 6, values for the drug masses AF and BF refer to collections from the MOC, and/or the after-filter if used.
|
Apparatus 1 | Apparatus 2 | Apparatus 3a | Apparatus 4b | Apparatus 5 | Apparatus 6 | |||||||
Mass | Cum%c | D50d | Cum%c | D50,Qd | Cum%c | D50,Qe | Cum%c | D50,Qd | Cum%c | D50,Qd | Cum%c | D50,Qd |
Filter | 0.4 | 0.625 | 0.4 | 1.7 | 0.34 | 0.34 | ||||||
Stage 7 | b | 0.7 | | | b | 0.7 | | | b | 0.55 | b | 0.55 |
Stage 6 | c | 1.1 | | | c | 1.1 | | | c | 0.94 | c | 0.94 |
Stage 5 | d | 2.1 | b | 1.25 | d | 2.1 | | | d | 1.66 | d | 1.66 |
Stage 4 | e | 3.3 | c | 2.5 | e | 3.3 | b | 3.1 | e | 2.82 | e | 2.82 |
Stage 3 | f | 4.7 | d | 5.0 | f | 4.7 | c | 6.8 | f | 4.46 | f | 4.46 |
Stage 2 | g | 5.8 | 100 | 10.0 | g | 5.8 | 100 | 13.0 | g | 8.06 | g | 8.06 |
Stage 1 | h | 9.0 | | | h | 9.0 | | | | | | |
Stage 0 | 100 | | | | 100 | | | | 100 | | 100 | |
a
Stages 6 and 7 are omitted from Apparatus 3 at flow rates >60 L per minute; thus, values for b and c should be omitted for Apparatus 3, where necessary.
|
||||||||||||
c
[(mass on stage / SB)×100] % + (total% of SB from stages below).
|
||||||||||||
d
The 50% cutoff diameter of the stage immediately above that indicated (e.g., for Stage 4, enter the cutoff diameter for Stage 3; for Apparatus 2 or 4, calculate as D50,Q from Eq. 1; for Apparatus 5 or 6, calculate as D50,Q from Eq. 2 using Table 7). Values entered in the Table are correct for Apparatus 1, 2, 4, 5, and 6 only when used at 28.3, 60.0, 60.0, 60.0, and 60.0 L per minute, respectively.
|
||||||||||||
e
The D50 values are only valid at a flow rate of 28.3 L per minute.
|