Custom Standards

ASI Standards specializes in creating custom calibration or check standards made to fit your testing specifications. We can matrix match your samples to minimize the effect of the sample matrix on the analysis results.

Calibration Standards

Ensure Accuracy and Compliance with High-Quality, Cost-Effective Standards.

Why ASI Standards?

No Matrix Too Challenging

We specialize in custom formulations in difficult matrices. If we don’t offer the product you need, we have extensive experience and highly trained staff to conduct research and development to create it.

ISO Accredited Facilities

Our lab has ISO 17034:2016 and ISO 9001:2015 certifications. This means our processes to create our reference materials meet these stringent international structural, resource, technical production, and management system requirements. Each product has traceable formulation records, testing, and quality control records.

Proven Track Record

We are a small, family-owned business providing excellent customer service and the highest quality products for more than 30 years.

Excellent Customer Service

Our friendly and helpful staff answer emails and phone calls quickly; so you will not be stuck waiting for answers. Each phone call is answered by a real person. No robocalls ever.

Quick Turnaround

Even for custom products, we make sure your order will be delivered on time.

Contact Us

If we don't offer a standard or
reference material that meets your requirements, our research and development team will engineer one. We specialize in custom formulations in difficult matrices.



Years in Business

ISO 17034


ISO 9001



Countries Served

“I have been dealing with ASI for over 10 years now and my experience with them has always been exceptional. Their commitment to customer satisfaction does not go unnoticed and I can always count on a quick response to any questions needing answered. They are a pleasure to deal with as all staff is professional, friendly and their expertise is unparalleled.”

Lindsay from ATS Scientific

About Us

Dr. Sardisco started Analytical Services Inc. back in 1993. With a small, but skilled team, they began developing ASI’s first standards out of a small laboratory in Spring, Texas. The first products were sulfur standards that insured matrix uniformity, including synthetic diesel fuel, residual oil and crude oils. ASI Standards paved the way for current standards companies with their passion and commitment to unparalleled quality.