Universal Specimen Cutter for cutting 3.5" dia samples up to 6" thick for use in the Universal Specimen Holder.
The FAP-USH-1 is one version of the Universal Specimen Holder (FAP-USH) that easily adds on to the Frazier Air Permeability Tester to test samples up to 1 inch (25 mm) in thickness. Samples can be quickly loaded and unloaded easily into unit. This holder will accept different shape samples with a parallel top and bottom up to 1" thick. Custom inserts that are the same thickness and shape as the specimen to be tested are used to hold the sample in position and seal tightly on the sample to eliminate edge leakage while avoiding compression of sample. Samples must fit into a 4" dia circle. The standard minimum sample size is 1.128" dia (1 sq in). Smaller custom sample sizes down to about 0.75" dia are available.
Note: When not in use, the Universal Specimen Holder should be kept in a uninserted position (base, holder, and sleeve should be separated) with rubber seals facing upward and protected from dirt. If Sleeve or Holder units become stuck in outer unit - pull out while twisting.
Due to the sensitive nature of airflow there will be a slight bias (measuring difference) between using the Universal Specimen Holder and standard Frazier Air Perm sample clamp. This difference will be greater at higher air flow ranges (ie. larger nozzle sizes). Therefore when recording results it should be noted that tests were performed using the Universal Specimen Holder-1 (example: air flow = 35 cfm @ 0.5" DP (pressure drop) using USH-1 (and the type of insert used)).
For Solid Specimens: for specimens larger than 2.75" in dia up to 4" in dia and 1" in thickness.
1. Move standard sample clamp into the open position.
2. Seat the FAP-USH-1-Base on the standard sample opening.
a. 
b.
3. Place proper FAP-USH-1-Insert into base.
a. 
b.
4. Insert specimen to be tested into the FAP-USH-1-Base.
a. 
b.
5. Insert FAP-USH-1-Sleeve into the FAP-USH-1-Base.
a. 
b.
6. Optional: Install FAP-WR-3LB weight rings if desired. One to 4 weight rings can be used (Weight Rings are used when the test requires that samples be compressed or if needed to insure unit is sealed)
a. 
b.
c. 
d. 
e.
7. Test the specimen using the standard testing procedures (see FAP Manual).
8. Record results noting that test was performed using the USH-1 (example: air flow = 35 cfm @ 0.5" DP (pressure drop using USH-1 (and the type of insert used)).
9. Remove Weight Rings (if installed).
10. Remove Sleeve.
11. Remove Specimen.
12. Remove Insert (does not need to be removed if using the same size sample).
Additional types of custom size and shape inserts may be purchased from Frazier Co.
For Solid Specimens: for specimens of various shapes up to 4" in dia and 1" in thickness or round samples smaller than 2.75" in dia. (ASTM D3574 insert shown in this example)
1. Move standard sample clamp into the open position.
2. Seat the FAP-USH-1-Base on the standard sample opening.
a. b.
3. Place bottom Adapter Plate FAP-AP-BP (adapter plate w/ black rubber seal) into Base with rubber down.
a. 
b. 
c.
4. Place proper FAP-USH-1-Insert into Base.
a. 
b.
5. Insert specimen to be tested into the FAP-USH-1-Base.
a. 
b.
6. Place top Adapter Plate FAP-AP-TP (adapter plate w/ 2 threaded holes and no seal) into Base above Insert with beveled side up.
a. 
b.
7. Insert FAP-USH-1-Sleeve into the FAP-USH-1-Base.
a. 
b.
8. Optional: Install FAP-WR-3LB weight rings if desired. One to 4 weight rings can be used (Weight Rings are used when the test requires that samples be compressed or if needed to insure unit is sealed)
a. b.
c. d. e.
9. Test the specimen using the standard testing procedures (see FAP Manual).
10. Record results noting that test was performed using the USH-1 (example: air flow = 35 cfm @ 0.5" DP (pressure drop using USH-1 (and the type of insert used)).
11. Remove Weight Rings (if installed).
12. Remove Sleeve.
13. Remove Top Adapter Plate
14. Remove Specimen.
15. Remove Insert (does not need to be removed if using the same size sample).
Additional types of custom size and shape inserts may be purchased from Frazier Co.