Humic Acid test for Fertilizers - CDFA Method
Verify the Quality, Potency, and Compliance of Your Humate Products
Ensure Your Humic Products Deliver What They Promise
Whether you’re manufacturing, distributing, or applying humic substances, accurate humic acid content analysis is essential for product quality, regulatory compliance, and marketing claims. Our Humic Acid Content Test uses the California Department of Food & Agriculture (CDFA) standard method, ensuring lab-grade accuracy you can trust for labeling, registration, and QA documentation.
Why Test for Humic Acid?
- Verify % Humic Acid content in both liquid and dry humates
- Ensure label compliance with CDFA and other regulatory programs
- Support product registration with state agricultural departments
- Assess input quality for blending or custom formulation
- Back your claims with scientifically validated results
What’s Included in This Test
- % Humic Acid Content – Determined using the official CDFA methodology
- pH Measurement – Indicates product stability and compatibility
- Report Format – Clear digital report with validated numeric results
Sample Requirements
- Dry Humate: 1 cup minimum
- Liquid Humate: 1 pint minimum
- Packaging: Sealed, labeled container or bag
- Turnaround Time: 3–5 business days from receipt
CDFA-Compliant Testing
This analysis follows the CDFA-approved method required by the Fertilizing Materials Inspection Program (FMIP). This industry-funded initiative ensures that fertilizing materials sold in California are safe, effective, and match their guaranteed content.
Our lab provides the data you need to comply with FMIP standards and protect your reputation in the organic and biological input market.
Ideal For:
- Humate manufacturers and processors
- Distributors and resellers needing compliance reports
- Product registration with CDFA or other state agencies
- Consultants evaluating material quality
- Buyers verifying supplier claims
Order Your Humic Acid Content Test Today
Validate your humate’s potency and protect your brand with CDFA-compliant results from a trusted lab.
Frequently Asked Questions
- What are your business hours?
Our office is open Monday thru Friday from 8 am to 5 pm. We do close for major holidays, so we recommend ordering your testing and sending your sample early if a holiday is coming up. You can always reach us by email. Just send us a message at info@tpslab.com
- When will I get my results?
We understand that you need your results as soon as possible. That is why we make sure to begin processing your samples as soon as they arrive at our laboratory. When the results are ready, we will email them to the email address you provided on your submittal form. The list below will give you an idea of our usual turnaround times.
Soil Tests: 5-7 Business days
Water Tests: 5 - 7 Business days
Plants Tests: 24 - 48 Hours
Compost Tests: 7 - 14 Business days
Fertilizer Tests: 3 - 5 Business days
Heavy Metals Test: 7 - 14 Business days
We offer a rush option for an additional 50% of the testing cost, but we would encourage you to give yourself time to test before you get to a point where a rush is needed.
