ASTM D6751 – The Standard for Biodiesel (B100)
ASTM D6751 is the internationally recognized standard that defines the quality requirements for pure biodiesel (B100).
It ensures that biodiesel meets strict specifications for performance, safety, and engine compatibility before it is blended with petroleum diesel.
What is ASTM International?
ASTM International is one of the world’s largest and most respected standards development organizations.
Originally founded as the American Society for Testing and Materials over a century ago, ASTM creates technical standards for materials, products, systems, and services used around the globe.
Their standards play a critical role in design, manufacturing, and international trade.
The organization was born when engineers and scientists came together to solve frequent rail breaks by standardizing the steel used in railroad construction — dramatically improving safety nationwide.
Why ASTM D6751 Matters
The biodiesel industry uses ASTM D6751 as the minimum quality standard for B100 biodiesel fuel.
This specification covers important properties such as flash point, viscosity, cetane number, cloud point, acid number, and free glycerin content.
ASTM standards are developed through a rigorous, consensus-based process involving fuel producers, engine manufacturers, government agencies, and independent experts.
Because a single negative vote can stop a standard, the process can take years — ensuring only the highest quality requirements are approved.
SRS International & ASTM D6751
SRS International designs and builds biodiesel plants that consistently produce fuel meeting or exceeding ASTM D6751 specifications.
Our systems are engineered for high purity, reliable performance, and long-term operational excellence.
When you choose SRS International, you can be confident that your biodiesel production meets the highest industry standards accepted by engine manufacturers and customers worldwide.
Want to see real results?
View an actual laboratory analysis report from a biodiesel plant built by SRS International.
