Special Environment Tests

The neutral salt spray test is an accelerated corrosion test to evaluate the corrosion resistance of materials and surface treated parts. An aqueous solution of sodium chloride (NaCl) is adjusted to neutral (pH 6.5 to 7.2) and sprayed as a mist.

Salt Spray Cycling Test is an accelerated corrosion test that repeatedly alternates between salt spray, drying, and humidification processes. This test reproduces corrosion similar to actual environmental conditions in a short period of time and is widely used for durability evaluation of automotive components and surface-treated materials.

Combined Salt Spray Cycling Test is an accelerated corrosion test that periodically alternates multiple environmental conditions such as salt spray, drying, humidification, and high-temperature exposure. This test reproduces corrosion mechanisms that closely simulate actual outdoor environments.

Single Gas Test is conducted to evaluate corrosion, contact failures, and other defects by exposing specimens to a single corrosive gas environment. This test is typically performed under high-concentration and short-duration conditions and is commonly used for evaluating contact reliability and connection performance.

Mixed Gas Test is conducted to evaluate corrosion, contact failures, and other defects by exposing specimens to multiple corrosive gas environments. This test is typically performed under low-concentration and long-duration conditions and is commonly used for evaluating contact reliability and connection performance.

Dust Test is conducted by exposing specimens to sand or dust environments to evaluate performance degradation and malfunctions caused by particle intrusion or adhesion. This test is mainly performed as an IP protection test, and various types of dust can be used depending on the test conditions.

IPX1: Dripping Water Test (Vertical Drip) is conducted by exposing the enclosure to vertically falling water drops to verify water ingress into the interior. This test simulates light rain or condensation conditions and is used to evaluate basic waterproof performance.

IPX2: Dripping Water Test (15° Tilted Position) is conducted by exposing the equipment to vertically falling water drops while it is inclined up to 15° to verify water ingress. This basic waterproof test simulates conditions such as inclined outdoor installations or light rain exposure.

IPX3: Water Spray Test is conducted by spraying water from a spray nozzle or oscillating tube to reproduce conditions such as rainfall or water splashes and to evaluate waterproof performance. This test is commonly required for outdoor equipment and compact devices.

IPX4: Splashing Water Test is conducted by exposing the product to water splashes from all directions to verify that no water enters the interior. This test is applicable to products installed in environments subject to rain or multidirectional water splashes.

IPX5: Water Jet Test is conducted by spraying water through a 6.3 mm diameter nozzle to verify that no water enters the interior of the product. This test is widely applied to outdoor equipment and automotive components.

IPX6: Powerful Water Jet Test is conducted by applying a strong water jet from a 12.5 mm diameter nozzle to verify that no water enters the product interior. This test simulates high-pressure cleaning and heavy rain conditions to confirm robust waterproof design.

IPX7: Immersion Test (1 m Depth, 30 Minutes) is conducted by immersing the product in water at a depth of 1 meter for 30 minutes to verify waterproof performance. This test evaluates the product’s ability to withstand temporary submersion and is widely applied to small devices and household appliances.

IPX8: Continuous Immersion Test (Long Duration, Manufacturer-Specified Conditions) is conducted by immersing the product in deep water under conditions specified by the manufacturer for an extended period to verify waterproof performance. This test is applicable to equipment intended for continuous underwater use or for special applications.

IPX9K: High-Temperature, High-Pressure Water Jet Test is conducted by spraying high-temperature, high-pressure water from multiple directions to verify water resistance. This test, specified in ISO 20653, simulates high-pressure cleaning environments for automotive and industrial equipment.

Immersion Test is conducted by immersing the specimen in water at a specified depth to verify waterproof performance and sealing integrity. This test is used to evaluate the reliability of automotive components and other products, and complies with international standards.

Ice Water Test is conducted by heating the specimen to a high temperature and then rapidly cooling it in ice water to verify waterproof performance, insulation reliability, and corrosion resistance. This test is commonly used for evaluating automotive battery packs and similar components.

Ozone Test is conducted by exposing specimens to a high-concentration ozone environment to evaluate cracking and degradation of rubber and resin materials. This test is widely used to assess the durability of automotive components and cable insulation.

Weather Resistance Test simulates outdoor environments involving ultraviolet radiation, temperature, humidity, and rainfall to evaluate deterioration such as fading, cracking, and corrosion. This test is widely used to assess the long-term durability of automotive components and building materials.

Lightfastness Test is conducted by exposing products to ultraviolet radiation or sunlight to evaluate discoloration and material deterioration. This test is used to assess risks such as fading and reduction in physical properties that may occur during long-term outdoor use.