Leak Rate Calculator
Leak Rate:
What Is a Leak Test?
Click image to enlarge
How to Calculate Leak Rate (SCCM)
A leak rate is expressed as a volume per unit of time. The rate is found by measuring the change in pressure multiplied by the volume. That number is then divided by the change in time multiplied by the surrounding atmospheric pressure to calculate the leak rate (SCCM).ATM = Atmospheric pressure (PSIA)
V = Test volume (cm3)
Δp = The decay in pressure during test time
Δt = The amount of decay time (min.)
SCCM = Standard Cubic Centimeters per Minute
Leak rate = .02psi/0.05min * 50cm3/14.7psia
Leak rate = 0.4 * 3.401
Leak rate = 1.36 SCCM
If you require assistance identifying any of these metrics or want to learn more about how to calculate SCCM for your leak detection application, call 801-264-1000 today. Our highly trained team will help you with calculations for determining SCCM.
Standard Types of Leak Tests
Air leak detection is an essential step in any manufacturing process. Both destructive and non-destructive standard air leak tests are available for manufacturing lines and OEMs to meet your specifications and satisfy any regulations.The test type is dependent upon your product and its application. For example, only a chamber test can be run on an enclosed object whereas objects with a single opening may use multiple other tests. The most common tests include Pressure Decay (PD), Vacuum Decay (VD), Occlusion (Occ), Mass Flow (F), Burst (B), Crack (C), and Chamber (PR).
Pressure Decay
Pressure decay is one of the most widely used non-destructive air leak testing methods. It is ideal for small, sealed components with a single access port. During this test, any decrease in air pressure over time signifies a leak.Learn More >
Mass Flow
Mass flow testers measure the flow rate through an object, with failure occurring when the flow rate does not pass through the maximum and minimum standards. Mass flow applies to parts with two ports open to the atmosphere.Learn More >
Vacuum Decay
Vacuum decay air leak tests are the inverse of pressure decay tests. Instead of pressure falling, any rise in pressure indicates that a leak is present.Learn More >
Occlusion
Occlusion air leak testing measures air movement through an object and determines if the object’s passage is blocked. It is a non-destructive test.Learn More >
Downstream Occlusion
As noted by the name, downstream occlusion is an occlusion test that includes a downstream release for more precise results.Learn More >
Burst
Burst air leak testing is a destructive pressure test that measures the maximum pressure at catastrophic failure.Learn More >
Pressure Cracking
Similar to a burst test but more sensitive, pressure cracking is often used to detect events such as a valve opening.Learn More >
Chamber
Chamber leak tests are used to find leaks in sealed devices such as electronics or packaging that do not have an access port. Chamber testing is ideal for products that need to meet IP67 standards.Learn More >
Other Types of Air Leak Testing
In some cases, standard air leak tests are not enough. At Zaxis, we offer several high-precision specialty air leak detection tests to ensure product viability. When paired with a standard air leak test, specialty tests provide quality assurance during the development and manufacturing of any product.
Specialty Air Leak Tests
|
Additional Air Leak Detection Methods
|
If you are unsure which non-destructive test or other air leak detection method is best for your manufacturing line, contact Zaxis. Our expert team will work with you to find the best solution for your production.
