Microbiological Testing
We provide a range of services to meet your needs for Safety audits, HACCAP protocols, and your in-house QC criteria. Our microbiology department performs the following tests using methodology from BAM, USDA, AOAC, USP, EPA:
Laboratory techniques include MPN, Membrane filtration, MUG/MMO, CFU and VIA. As part of our Quality Assurance program, we participate in the AOAC Laboratory Proficency Testing Program (M01)
Food Safety Audits / HACCAP:
- Total Aerobic Plate Counts
- Yeast & Mold Counts
- Coliforms - Total, Fecal, E. coli
- Salmonella
- Listeria spp.
- Listeria monocytogenes
- Staphylococcus aureus
- E. coli 0157H7
USP 61:
- Total Aerobic Plate Counts
- Total Yeast & Mold Counts
- Escherichia coli
- Salmonella
- Pseudomonas aeruginosa
- Staphylococcus aureus
Organic based fertilizer requirements:
- Salmonella
- Fecal coliforms
- Escherichia coli
- Total Plate Counts
Fertilizer Testing
We provide an extensive range of analytical services to meet the needs for new fertilizer product labeling registration, production monitoring / QC product development. Chemical and physical testing is also provided for other agronomic related materials - Limestone, Coated Slow Release (CSR) products, Pesticides & Herbicides. Continued involvement with The Association of Fertilizer & Phosphate Chemists (AFPC) and state regulators (AAPFCO) enables us to inform our clientele of regulatory issues that may affect the marketplace.
We maintain membership in the following organizations - TFI, AOAC, FFAA. Analysis of Fertilizer products conform to the methodology of AOAC, AFPC, FDACS, ASTM, ISO/CEN, EPA.
When the need arises, Thornton Laboratories can provide assistance with new method development and validation -SLV for peer review and publication.
Fertilizer Analytical Services:
- Nitrogen
- Available Phosphate (P2O5)
- Potassium (K2O)
- Calcium
- Magnesium
- Copper
- Iron
- Manganese
- Zinc
- Chloride
- Sulfate
- Boron
- Ammonia -nitrogen
- Nitrate -nitrogen
- Urea
Non-Nutritive Metals for State Registration:
- Arsenic
- Cadmium
- Chromium
- Cobalt
- Lead
- Mercury
- Molybdenum
- Nickel
- Selenium
Biosolids:
- Fecal coliforms
- Salmonella