ASTM D130, the Copper Corrosion Test, evaluates the corrosive/tarnishing properties of hydrocarbon-based substances, including fuels, lubricants, and additives, on copper. This test is crucial for assessing fluid compatibility with copper and copper alloy components in equipment. It ensures that fuels meet corrosion standards and that lubricant and hydraulic fluids are safe for use in systems containing copper components.
For companies, this test helps manufacturers and users verify that fuels and lubricants meet regulatory and industrial standards. It also identifies products that could cause corrosion, leading to leaks, blockages, or system failures. Eurofins TestOil analysts use ASTM D130, which involves:
- Preparation of the copper strip:
• A copper strip is cut and polished to remove oxides. Then it is thoroughly cleaned to ensure a smooth surface.
• The strip is prepared to meet the required standards for testing. - Immersion:
• The polished copper strip is immersed in the fluid sample.
• The bottle with the fluid sample and strip is placed in a sealed test container to prevent contamination. - Controlled Testing Conditions:
• The test is conducted at specific temperatures and durations, depending on the type of product being tested. - Post-Test Inspection:
• After the test, the copper strip is removed, cleaned, and visually examined.
• The appearance of the strip is compared against the following standardized color scale specified by ASTM.
Standardized Color Rating Scale
• 1a to 1b: Slight tarnish (acceptable for most applications)
• 2a to 2b: Moderate tarnish
• 3: Dark tarnish
• 4: Corrosion with pitting or blackening (unacceptable for most applications)
By detecting corrosive substances early, ASTM D130 helps protect critical machinery and prolong its lifespan--ensuring reliable operation and reducing maintenance costs. To get started with oil analysis and training visit https://testoil.com/company/contact-us/; call 216-251-2510; or email sales@testoil.com.
About Eurofins TestOil
With more than 30 years of experience in the oil analysis industry, Eurofins TestOil focuses exclusively on assisting industrial facilities with reducing maintenance costs and avoiding unexpected downtime through oil and fuel analysis program implementation. As industry experts in diagnosing oil-related issues in equipment such as turbines, hydraulics, gearboxes, pumps, compressors and diesel generators, Eurofins TestOil provides customers with same-day turnaround on routine oil analysis testing. For more information on partnering with Eurofins TestOil on oil analysis programs or training opportunities visit https://testoil.com. Contact: Al Yates 216-251-2510; sales@testoil.com.
About Eurofins – the global leader in bio-analysis
Eurofins is Testing for Life. Eurofins is the global leader in food, environment, pharmaceutical and cosmetic product testing, and in discovery pharmacology, forensics, advanced material sciences and agroscience Contract Research services. Eurofins is also a market leader in certain testing and laboratory services for genomics, and in the support of clinical studies, as well as in BioPharma Contract Development and Manufacturing. The Group also has a rapidly developing presence in highly specialised and molecular clinical diagnostic testing and in-vitro diagnostic products.
With over 61,000 staff across a network of 940 laboratories in 59 countries, Eurofins’ companies offer a portfolio of over 200,000 analytical methods. Eurofins Shares are listed on Euronext Paris Stock Exchange.
