The Emerald Test

Spring 2018

Quantify Your Excellence

What is it?

The Emerald Test

Inter-Laboratory Comparison and Proficiency Test for Cannabis Testing Labs

The Emerald Test™ is an Inter-Laboratory Comparison and Proficiency Test (ILC/PT) program for cannabis testing labs. It brings to the cannabis industry a well-established standard for testing in the environmental, food, pharmaceutical, water, and petrochemical testing industries. Through the participation of labs around the world, the ILC/PT helps establish an industry benchmark for cannabis testing.

State regulatory agencies use proficiency testing (PT) programs for laboratory licensure and compliance to promote accurate testing for cannabis quality and safety.

The Emerald Test™ is offered twice each year (though individual PT’s are always available).

How it works

The Emerald Test™ takes place in the Spring and Fall of each year, with enrollment open for a set period of time. The components of each test are determined by the Emerald Test Advisory Panel. Proficiency test samples are manufactured by an ISO 17043 accredited PT provider and require overnight shipping. After receiving and testing the sample, labs have a specified time period to complete the test(s) and submit their results. Results are submitted through an electronic data portal. Data analysis is provided by American Oil Chemists Society (AOCS) with software designed to meet the requirements of ISO 13528:2015.

Labs will receive their individual results with the overall test results so they can evaluate their performance in relation to their peers. Individual lab data is confidential; however cumulative (anonymous) data of all laboratory participants is used for a variety of analyses and may be published in appropriate journals and/or websites. Labs that perform within a specific tolerance are awarded Emerald Test Badges. All participants will be listed on this site.

A signed release of information from the lab is required to make test results available to regulatory agencies.

Spring 2018 Test


Enrollment for the Spring 2018 Test begins March 14th. Purchasing any of the Emerald Tests™ automatically enrolls the lab in the program. All tests require Overnight Shipping, which is included in the price of the test.


The Spring 2018 Emerald Test™ offers a broad range of PTs to meet a laboratory’s internal and regulatory needs.


The Potency Test – details to TBA

The Pesticides Test – details to TBA

residual solvents

The Residual Solvents Test – details to TBA

microbial test panel 1

The Microbial Panel 1 Test  – details to TBA

microbial panel 2

The Microbial Panel 2 Test – details to TBA

The Heavy Metals Test – details to TBA


The Terpenes Test – details to TBA




The Mycotoxin Test will be introduced as a new PT  – details to TBA


Once labs complete the tests, results will be submitted though the secure AOCS online portal. All submitted data will be received by AOCS for processing and analysis using ISO 13528:2015 software and standards for ILC/PTs.

The Badge

An Emerald Badge will be issued to top performing labs, with criteria being set by the Advisory Panel. 

Advisory Panel

The Emerald Test™ Advisory Panel recommends the PT’s to be offered, and defines the content of each test.  The Spring 2018 advisory panelists are:

About Emerald Scientific

Emerald ScientificEmerald Scientific is the only reagent and equipment distribution company that exclusively serves the cannabis industry.  We provide quality reagents, supplies, and equipment to testing and extraction labs through our agreements with leading scientific product manufacturers, and we have developed our own kits and supplies to help improve efficiency and productivity in the testing labs. 

Encouraged by feedback from industry stakeholders and academics, we  developed the Emerald Test®, the first nationwide program for inter-laboratory comparison and proficiency testing (ILC/PT) specifically for the cannabis industry.     

We also hold the annual Emerald Conference – the first and biggest conference devoted exclusively to the Science of Cannabis.

We’d like to invite you to contact us anytime with any questions or comments, either about the ILC/PT, the Emerald Conference,  or about Emerald’s distribution business. Visit our website at, or call us  toll-free at 877-567-3598


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Contact Info

877-567-3598 ext. 709

San Luis Obispo, CA, USA