OKI Launches Saltwater Corrosion Test Service Compliant with "JASO M 609:2024" for Automotive Parts and Materials

Image of saltwater corrosion testing in progress.

OKI Engineering (OEG) (President: Hiroyuki Oba, Headquarters: Nerima-ku, Tokyo), which provides technical services related to reliability evaluation and environmental conservation within the OKI Group, will launch a saltwater corrosion test service compliant with the corrosion test standard for automotive parts and materials, "JASO M 609:2024" (Note 1), on July 1, 2026. By offering this service in a one-stop manner along with water-based environmental tests (Note 3) such as IP tests (Note 2), OEG aims to improve the convenience of test requests, optimize the testing process, and provide prompt test responses. The company aims to achieve 500 million yen in sales from water-based environmental tests over the three years up to fiscal year 2028 through this service.

In recent years, the environment surrounding automotive parts and materials has become harsher due to factors such as heavy rains, flooding, salt damage in coastal areas, and high temperatures and humidity caused by climate change. In response to these environmental changes, the importance of corrosion testing that simulates actual usage environments has increased, leading to the revision of the standard to "JASO M 609:2024" in 2024. OEG has also seen a rapid increase in customer requests for tests compliant with this standard, simulating actual usage environments.

OEG has previously offered water-based environmental tests for automotive parts and materials, including IP tests, splash water tests (Note 4), and saltwater corrosion tests. Furthermore, OEG has also accommodated specific customer needs, such as tests using surfactants (Note 5) and high-temperature muddy water spray tests (Note 6).

With the introduction of a new saltwater corrosion testing machine compliant with "JASO M 609:2024," OEG has established a system capable of providing all major water-based environmental tests based on key standards, from IP tests to saltwater corrosion tests, in a one-stop service.

This eliminates the need for customers to place individual requests with multiple testing laboratories for each test. They can now have all their water-based environmental tests conducted at a single facility. This not only reduces the effort involved in requests and management but also allows for shorter intervals between corrosion tests, as corrosion progresses over time after the initial test, leading to more accurate test results.

Going forward, OEG will continue to flexibly respond to the latest standard trends and market changes, providing cutting-edge testing and technologies. As a partner supporting the enhancement of customer product value, OEG will expand its quality testing services that directly contribute to safety, security, and reliability.

Sales Plan

Standard Price: Individual Quotation

Sales Target: 500 million yen over three years up to FY2028

Service Start Date: July 1, 2026

Glossary

Note 1: JASO M 609:2024

A corrosion resistance test standard for automotive parts established by the Society of Automotive Engineers of Japan (SAE-J). The 2024 version is the first revision in 30 years since the 1991 version. In addition to the conventional salt spray method, it has been revised to include salt application using the saltwater shower method and control of temperature and humidity, making the test conditions and methods more realistic environmental tests.

Note 2: IP Test

Abbreviation for Ingress Protection test, which evaluates the degree of protection of electrical machinery and electronic equipment against the ingress of foreign objects and water.

Note 3: Water-based Environmental Test

A general term for environmental tests that evaluate the durability of products when exposed to "water" or "liquids" such as rainwater, condensation, saltwater, and muddy water. Specific examples include "waterproof tests," "salt spray tests," and "splash water tests."

Note 4: Splash Water Test

A thermal shock test that simulates cold splashing water from wet roads during rain or snow hitting high-temperature parts near the engine room.

Note 5: Test Using Surfactants

A water resistance test that uses surfactants to confirm waterproofness more rigorously than tests with pure water. It simulates conditions such as car washing with car shampoo, and rigorously checks waterproof performance without overlooking the risk of water ingress.

Note 6: High-Temperature Muddy Water Spray Test

A test that simulates the condition of muddy water splashing onto electronic equipment installed in a car's engine room during driving. The test involves continuously repeating cycles of muddy water spraying and drying under high-temperature conditions to confirm resistance to mud.

Release Related Links

Saltwater Test Introduction Site

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OKI Engineering Co., Ltd. is commonly known as OKI Engineering.

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