Quality Assurance

Filter Testing Capabilities
As a key part of producing and delivering the highest quality filter elements and housings, Swift Filters conducts standard testing based on best practices / standards:

Our filter elements are tested based on the most appropriate methods and environments to  evaluate filter efficiency, capacity, and the capture and retention of dirt particles with dynamic flow rates reproducing real-world conditions which can include:
•    ASTM D7647 (lubricants)
•    ISO 60970 (insulating oils)
•    ISO 4405 – Hydraulic Fluid Power - Fluid Contamination - Determination of Particulate Contamination by the Gravimetric Method
•    ISO 4406 – Hydraulic Fluid Power - Fluids - Method for Coding the Level of Contamination by Solid Particles
•    3 part ISO 4406 cleanliness codes
•    NAS 1638
•    GOST 
•    ISO 2941 – Hydraulic Fluid Power - Collapse/Burst Test
•    ISO 2942 – Hydraulic Fluid Power - Verification of Fabrication                          Integrity/Bubble Point
•    ISO 2943 – Hydraulic Fluid Power - Material Compatibility with Fluids
•    ISO 16889 and ISO 4548/12 (performance): particle capture efficiency, dirt holding capacity, flow resistance- multi-pass testing 

•    ISO 23369:2022 (performance): similar to ISO 16889 but for filters exposed to cyclicflow 

•    Dirt Loading (hydraulic) ISO 12103-one fine test dust to be added during the test to determine the maximum amount (by weight) that could be added before  the filter element under test catastrophically collapsed. 

•    Contaminated pressure drop (pneumatic)-allowed ISO 12103-one fine and coarse test dust to be added during the test to determine the maximum amount (by weight) of particulate that could be added before the filter under test could no longer pass contaminated pressure drop requirements.

•    Shock Testing MIL-S-901- “High Impact for Mechanical Shock”

Dynamic Filter Efficiency (DFE) Testing and Validation
The DFE (Dynamic Filter Efficiency) test is a next generation method for evaluating filter performance, especially under dynamic flow conditions which goes beyond traditional ISO standards.

Our DFE testing simulates real-world operating conditions by inducing dynamic changes in flow rate, allowing for a more accurate assessment of a filter's ability to capture and retain particles during dynamic changes. 

SwiftSentry 1000 Fluid  Particle Counter Testing
Our SwiftSentry 1000 fluid cleanliness monitor utilizes proven mesh blockage technology to report accurate, reliable, 3 part ISO 4406 cleanliness codes for most types of fluids, in many types of environments.

Particle Counter Testing Capabilities 
•    Monitor contamination levels in mineral, synthetic, or water-based fluids. Results are unaffected by the presence of water, air, or dark fluids
•    Get accurate, 3 parts* ISO 4406 cleanliness code results in under 6 minutes and quickly take preventative action

Fabrication integrity testing / Bubble Point Test
Non Destructive 
Bubble Point Testing is used as an industry standard to determine the largest (absolute) micron size of a given filter element. This test is typically used as an acceptance test when a stringent requirement is needed for aerospace applications.

Bubble Point Testing is typically performed using the industry standard SAE ARP901; our standard manufacturing process quality control that includes bubble point testing at several different manufacturing stages conducted using sampling size with a zero-defect policy.

The tests are performed to ensure the welding process and filter mesh elements being used are up to our strict quality standards.

Flow Testing
Non-Destructive
We employ gas or liquid flow testing is set to validate pressure drop across housing and filter elements. 

Filter flow testing is performed to understand the differential pressure from the inlet of the filter housing to the exit of the filter housing. All flow testing is performed on NFC built test stands which utilize electronic data logging to record system pressure, system temperature, and differential pressure.

Based on the application performance requirements, Swift Filters has the ability to perform flow testing using water for liquid applications.

Liquid Test Stand Capabilities:
•    Flow Rate: 0-350 GPM maximum
•    Fluid: Water

Fuel Filters
•    SAE J905 Fuel Filter Test Methods – Various Qualification Tests Including Performance, Integrity, and Environmental Testing
o    Resistance to Flow
o    Bubble Point
o    Bypass, Anti-Drainback and Relief Valve
o    Media Migration
o    Collapse
o    Hydrostatic Burst
o    Material Compatibility
•    SAE J1985 – Single Pass Efficiency (Automated Online Particle Counting)
•    ISO 19438 – Multi-pass Efficiency (Automated Online Particle Counting)

Fuel / Water Separators Testing
•    SAE J1488 – Emulsified Fuel/Water Separation (Automated Online Water Droplet Sizer)
•    SAE J1839 – Coarse Fuel/Water Separation (Automated Online Water Droplet Sizer)
•    ISO 16332 – Fuel/Water Separation (Automated Online Water Droplet Sizer)

Oil Filters Testing
•    SAE J3236 (Previously SAE HS806) and ISO 4548 Oil Filter Test Procedures – Various Qualification Tests Including Performance, Integrity, and Environmental Testing
o    Resistance to Flow
o    Bubble Point
o    Bypass, Anti-Drainback and Relief Valve
o    Media Migration
o    Collapse
o    Hydrostatic Burst
o    Material Compatibility

Associated and Supporting Test Methods
•    ASTM D6304 – Karl Fischer (Water Content in Petroleum Products)
•    ASTM D1331-B And ASTM D971 – Interfacial Tension (IFT)
•    ASTM D7261 MSEP (Diesel and Biodiesel) And ASTM D7224 MSEP (Aviation) – Water

Separation Characteristics by Micro-Separometer
•    ISO 16232 – Road Vehicles - Cleanliness of Components and Systems