FED-STD-791D
7. CALCULATIONS
7.1 Compute the percentage change in volume of each rubber sheet as follows:
(A - B)
V=
* 100
B
where:
V = change in volume, percent.
A = displacement weight at conclusion of test, mg.
B = displacement weight before immersion in sample, mg.
8. REPORTING
8.1 Report the average percent volume change of the three rubber sheets.
9. PRECISION
9.1 Repeatability. Test results, obtained by one operator at one laboratory, for
each test sheet must not vary from the average by more than the following:
a. If average is 0 to 5% units: 0.5% unit.
b. If average is above 5% units: 1% unit.
Method Prepared by:
Navy - NADC - 1986
243
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business