OKCTL offers a complete portfolio of testing services primarily focused on the cannabis industry. Our brand new state-of-the-art laboratory and highly qualified team enables us to complete a wide variety of testing services within a short timeline without sacrificing quality. Test results are typically available within 24-48 hours, if same day service is needed please contact us.

OKCTL has developed strict operating procedures starting at sample collection and ending when the sample has expired and is destroyed.


  • Moisture Testing
  • Foreign Materials Testing
  • Potency Testing
  • Mycotoxin Testing
  • Terpene ProfilingPlant Sexing
  • Residual Solvents and Processing Chemicals TestingHomogeneity Testing
  • Pesticide Screening
  • Microbial Impurities Testing

Sampling Procedures

Sample Size for Testing.
How much should I supply for testing?

The general rule of thumb for testing require 1 gram of product per each test. We ask for enough sample to complete the tests, as well as a buffer amount for any retesting, as well as to ensure proper homogenization. Below are more specific sample guidelines.

Flowers: 1 gram per test per flower.
Concentrates (wax, shatter, smoking oil, etc.): 1/2 gram per test.
Edibles (food item): we require a full serving, about 45 grams.
Edibles (tinctures, edible oils): 5ml per test.
Infusions (Salves and other topicals): 2 grams per test.

Sample Collection

Cannabis plants have distinct growth patterns which influence how cannabinoids are distributed throughout the flowers. Flowers located on the primary stalk at the very top of the plant will yield the highest numbers, while flowers located on lateral stalks down towards the base of the plant will have the lowest numbers.

Because of this, we recommend specific methods of collection to ensure the most accurate profile results. Collect small bits of flower randomly from all portion of the plant – many small buds totaling 1 gram per test will be potentially more accurate than a single large bud.