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Residual Solvents
SAFETY SCREEN
PRICE
$115 per sample
SCOPE OF TEST
n-Butane:limit 5000 mg/kg
Ethanol:limit 5000 mg/kg
AMOUNT OF SAMPLE NEEDED
Flower:not applicable
Concentrate:0.5 grams
Extract:not applicable
Infused Products:not applicable
TESTING METHOD
Headspace Gas Chromatography with Flame Ionization Detection (HS-GC-FID)

OVERVIEW

Screening for residual solvents is only applicable to hemp products made using a solvent-based extraction method. The amount of residual solvent left in a hemp concentrate should be shown to be below the allowable limit in milligrams, which varies for each applicable solvent.

WHY IT MATTERS

Concentrated hemp products made using a solvent should be purged at the end of the extraction process. Trace amounts of the solvent used can remain even after purging, and high concentrations of certain solvents can be harmful if consumed. Screening products for residual solvents helps ensure consumer safety.

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PHR Labs is temporarily NOT ACCEPTING SAMPLES. We appreciate your patience while we make exciting improvements to our facilities and procedures and look forward to offering you best in class testing services in the near future.