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Ingress Protection (IP Code) Testing – IP68: Dust-Tight & Extended Immersion Protection

IP68 testing is a critical standard in product safety, evaluating a product’s capability to offer complete dust-tight protection and withstand extended periods of immersion in water.

This standard is particularly relevant for electrical enclosures and similar products used in specific environments. These environments require full protection against dust ingress and the risk of prolonged submersion in water.

As a certified IP Code testing laboratory, we realize the importance of IP68 testing. Meeting ingress protection compliance requirements can be difficult. We understand the challenges and guide companies through the process. 

When products do not meet the requirements, we assist with finding solutions. Keystone Compliance creates an accurate test plan to eliminate expensive over-testing. Our engineers take a consultative approach so customers can focus more on R&D and the marketing of their product. Additionally, Keystone offers immediate emergency scheduling. 

Request a quote and find out first hand about our competitive pricing, timely process, and outstanding reputation. Have a question about our IP code testing capabilities? Contact us or call (724) 657-9940 and we will determine the best course of action.

Summary of IP 68 Ingress Protection Testing

Part of the International Protection (IP) Marking system, governed by the International Electrotechnical Commission (IEC), IP68 testing provides guidelines for the level of protection offered by enclosures against dust and water.

This rating is critical for ensuring the safety and functionality of electrical equipment in environments prone to dust and extended water immersion.

The IP68 rating ensures that these products can entirely prevent the entry of dust and provide effective protection against extended immersion, maintaining their operational integrity and safety in various applications.

Understanding IP68 Testing

IP68 testing involves two key aspects of protection:

Dust-Tight Protection (First Digit – ‘6’)

This test evaluates the enclosure’s ability to completely prevent the entry of dust, ensuring the highest level of dust protection.

Extended Immersion Protection (Second Digit – ‘8’)

This aspect of the test assesses the product’s ability to resist water ingress during extended immersion under more severe conditions than standard immersion tests, such as increased depth or duration.

Testing Procedures

The methodology for IP68 testing is rigorous and detailed:

Test for Dust-Tight Protection: The enclosure undergoes testing in a dust-filled environment under controlled conditions to confirm that no dust particles can penetrate it, ensuring the internal components remain free from dust contamination.

Test for Extended Immersion Protection: The product is submerged in water at a depth and for a duration specified by the standard, typically deeper and for a longer period than standard immersion tests.

This test checks whether the enclosure can effectively prevent water from entering and causing damage to the internal electrical components during this extended period of submersion.

Importance of IP68 Testing

Maximum Equipment Safety

IP68 testing is essential for ensuring that electrical enclosures offer the highest level of protection against dust ingress and extended immersion in water, thereby enhancing overall safety and reliability.

Reliability in Challenging Environments

The IP68 rating ensures the product’s functionality and longevity in environments where dust and prolonged water immersion are significant concerns.

Consumer and User Confidence

Products meeting the IP68 standard provide users with assurance of their operational stability and safety in environments prone to dust exposure and extended water submersion.

Compliance with Safety Standards

Adherence to the IP68 standard demonstrates a commitment to safety and quality in product design and manufacturing.

Industry Applications

IP68 testing is particularly relevant for:

Industrial Control Panels and Enclosures: In industries where dust is prevalent and exposure to prolonged immersion in water is possible, such as in certain manufacturing sectors or outdoor settings.

Sensitive Electronics and Equipment: For electronics and precision instruments where dust ingress or prolonged water immersion can cause malfunction or damage.

Commercial and Public Electrical Installations: In areas with high levels of ambient dust and potential for prolonged immersion in water, where complete dust protection and extended immersion resistance are necessary for safety and functionality.

Expert IP 68 Ingress Protection (IP Code) Testing Laboratory

IP68 testing plays a crucial role in verifying that products offer dust-tight protection and resistance to extended immersion in water. This ensures their safety and functionality in environments prone to dust and prolonged water exposure.

The IP68 level of testing is essential for protecting electrical components from dust ingress and water damage. These issues are key concerns in many industrial and commercial settings.

As technology and environmental conditions evolve, the significance and application of the IP68 standard will continue to be important in assessing and ensuring product safety and reliability.

Keystone has a full lab of test equipment which permits us to provide short lead times on scheduling. In addition to IP68 testing, we offer a full range of IP Code tests, from IP10 to IP69K, ensuring comprehensive coverage for all ingress protection testing standards. 

Request a quote to receive testing services tailored to your specific requirements.


For similar tests to IP68, visit the following:

Ingress Protection (IP Code) Testing – IP08: Large Object & Extended Immersion Protection

Ingress Protection (IP Code) Testing – IP18: Large Object & Extended Immersion Protection

Ingress Protection (IP Code) Testing – IP28: Finger-Sized Object & Extended Immersion Protection

Ingress Protection (IP Code) Testing – IP38: Tool-Sized Object & Extended Immersion Protection

Ingress Protection (IP Code) Testing – IP48: Wire & Extended Immersion Protection

Ingress Protection (IP Code) Testing – IP58: Limited Dust Ingress & Extended Immersion Protection

Ingress Protection (IP Code) Testing – IP60: Dust-Tight Protection – Complete protection against dust ingress, no water protection

Ingress Protection (IP Code) Testing – IP61: Dust-Tight & Drip Water Protection

Ingress Protection (IP Code) Testing – IP62: Dust-Tight & Tilted Drip Water Protection

Ingress Protection (IP Code) Testing – IP63: Dust-Tight & Spray Water Protection

Ingress Protection (IP Code) Testing – IP64: Dust-Tight & Splashed Water Protection

Ingress Protection (IP Code) Testing – IP65: Dust-Tight & Water Jet Protection

Ingress Protection (IP Code) Testing – IP66: Dust-Tight & Powerful Water Jet Protection

Ingress Protection (IP Code) Testing – IP67: Dust-Tight & Immersion Protection

Ingress Protection (IP Code) Testing – IP69: Dust-Tight & High-Temperature Water Jet Protection