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Ingress Protection (IP Code) Testing – IP37: Tool-Sized Object & Immersion Protection

IP37 testing is an important standard in product safety, designed to evaluate a product’s ability to prevent the entry of objects as small as 2.5mm, typically akin to small tools, and its capability to withstand temporary immersion in water. This standard is particularly relevant for products that are likely to be used in environments where they may be temporarily submerged in water and exposed to small objects.

As a certified IP Code testing laboratory, we realize the importance of IP37 testing. Meeting ingress protection compliance requirements can be difficult. We understand the challenges and guide companies through the process. 

Our pricing is extremely competitive and we offer volume discounts. Additionally, Keystone offers immediate emergency scheduling. Our engineers take a consultative approach so customers can focus more on R&D and the marketing of their product. We quickly turnaround comprehensive reports after the completion of the testing process. Keystone Compliance creates an accurate test plan to eliminate expensive over-testing. 

Request a quote to see why so many companies partner with Keystone Compliance. Have a question about immersion or ingress protection testing? Contact us or call (724) 657-9940 and we will determine the best course of action.

Summary of IP 37 Ingress Protection Testing

As part of the International Protection (IP) Marking system overseen by the International Electrotechnical Commission (IEC), IP37 testing provides a framework for classifying the degree of protection offered by electrical enclosures.

The IP37 rating specifically assesses the enclosure’s resistance to 2.5mm tool-sized objects and its ability to endure temporary immersion in water.

The IP37 rating is a key indicator of a product’s ability to maintain functionality and safety under such conditions, essential across various industrial, commercial, and outdoor applications.

Understanding IP37 Testing

IP37 testing includes two crucial aspects:

2.5mm Tool-Sized Object Protection (First Digit – ‘3’)

This test ensures that the enclosure can prevent the entry of small objects that are 2.5mm in diameter, safeguarding against accidental contact with hazardous internal components.

Temporary Immersion Protection (Second Digit – ‘7’)

This part of the test evaluates the product’s ability to withstand immersion in water for a limited period under specified conditions.

IP 37 Laboratory Testing Procedures

The procedure for IP37 testing is comprehensive and stringent:

Test for 2.5mm Tool-Sized Object Protection: The test involves attempting to insert a 2.5mm diameter object into the product’s enclosure. This object should not be able to fully penetrate the enclosure or come into contact with any dangerous parts inside.

Test for Temporary Immersion Protection: The product is immersed in water at a depth determined by the standard, typically 1 meter, for a duration specified by the manufacturer, usually at least 30 minutes. The test checks whether the enclosure can effectively prevent water from entering and causing damage to the internal electrical components.

Importance of IP37 Testing

Enhanced Safety and Functionality

IP37 testing is vital for ensuring that products are safe from small tool penetration and water immersion, enhancing their reliability and functionality in various settings.

Consumer Confidence

Products meeting the IP37 standard reassure consumers and users of their durability and safety in conditions involving potential water exposure and physical contact.

Compliance with Safety Regulations

Adhering to the IP37 standard demonstrates a commitment to maintaining high safety and quality standards in product design and manufacturing.

Applicability in Diverse Environments

The IP37 rating is crucial for products used in environments where temporary immersion and interaction with small tools is a possibility.

Industry Applications

IP37 testing is particularly relevant in:

Industrial Equipment and Machinery: Where machinery requires protection against small tools and environmental factors like temporary immersion in water.

Consumer Electronics and Appliances: In household and office environments, ensuring safety from small object intrusion and temporary water exposure is crucial.

Commercial and Public Electrical Installations: For installations in areas where there’s a risk of temporary immersion and access to non-technical personnel.

Expert IP 37 Ingress Protection (IP Code) Testing Laboratory

IP37 testing plays a crucial role in verifying that products provide adequate protection against the intrusion of 2.5mm tool-sized objects and withstand temporary immersion in water. This level of testing is essential for ensuring the safety and functionality of electrical products under specific environmental conditions.

As technology continues to evolve, the significance and application of the IP37 standard will remain vital in assessing and ensuring product safety and reliability in diverse operational settings.

Our team strives to give our customers more time and energy on product development instead of testing. Keystone has a full lab of test equipment which permits us to provide short lead times on scheduling. In addition to IP37 testing, we offer a full range of IP Code tests, from IP10 to IP69K, ensuring comprehensive coverage for all ingress protection testing standards.

Contact us to receive more information on IP 37 testing.


For similar tests to IP37, visit the following:

Ingress Protection (IP Code) Testing – IP07: Large Object & Immersion Protection
Ingress Protection (IP Code) Testing – IP17: Large Object & Immersion Protection
Ingress Protection (IP Code) Testing – IP27: Finger-Sized Object & Immersion Protection
Ingress Protection (IP Code) Testing – IP47: Wire & Immersion Protection
Ingress Protection (IP Code) Testing – IP57: Limited Dust Ingress & Immersion Protection
Ingress Protection (IP Code) Testing – IP67: Dust-Tight & Immersion Protection
Ingress Protection (IP Code) Testing – IP30: Tool-Sized Object Protection
Ingress Protection (IP Code) Testing – IP31: Tool-Sized Object & Drip Water Protection
Ingress Protection (IP Code) Testing – IP32: Tool-Sized Object & Tilted Drip Water Protection
Ingress Protection (IP Code) Testing – IP33: Tool-Sized Object & Spray Water Protection
Ingress Protection (IP Code) Testing – IP34: Tool-Sized Object & Splashed Water Protection
Ingress Protection (IP Code) Testing – IP35: Tool-Sized Object & Water Jet Protection
Ingress Protection (IP Code) Testing – IP36: Tool-Sized Object & Powerful Water Jet Protection
Ingress Protection (IP Code) Testing – IP38: Tool-Sized Object & Extended Immersion Protection
Ingress Protection (IP Code) Testing – IP39: Tool-Sized Object & High-Temperature Water Jet Protection