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ISO/IEC 17025:2017 - Perry Johnson Laboratory Accreditation, Inc.
2024-2025 Arizona Health Department ADHS
2025 NAPT Soil & Plant Proficiency
ERA Water Proficiency - pH & Inorganics
ERA Water Proficiency - Metals & Microbiology
Women Business Enterprise
USCC - Compost Analysis Proficiency Seal of Testing Assurance
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Analytes Tested:
Boron
Calcium
Copper
Free lime
Iron
Magnesium
Manganese
Nitrate-nitrogen
Organic matter
pH
Phosphate-phosphorus
Potassium
Salinity
Sodium percentage
Sulfate-sulfur
Texture
Zinc
Analytes Tested:
Boron
Calcium
Copper
Free lime
Iron
Magnesium
Manganese
Nitrate-nitrogen
pH
Phosphate-phosphorus
Potassium
Salinity
Sodium percentage
Sulfate-sulfur
Zinc
Analytes Tested:
Arsenic
Calcium
Iron
Lead
Magniesium
Nitrate-Nitrogen
Nitrite-Nitrogen
pH
Total Dissolved Solids (TDS)
Total Coliform and E. coli P/A
Analytes Tested:
Arsenic
Cadmium
Calcium
Flouride
Iron
Lead
Magniesium
Mercury
Nitrate-Nitrogen
Nitrite-Nitrogen
pH
Total Dissolved Solids (TDS)
Total Coliform and E. coli P/A
Uranium
Analytes Tested:
Bicarbonate
Boron (Total)
Calcium (Total)
Carbonate
Chloride
Salinity
Magniesium (Total)
Nitrate-Nitrogen
pH
Phosphorus
Potassium
Sodium (Total)
Sulfate
Analytes Tested:
Boron (Total)
Calcium (Total)
Carbon (Total)
Copper (Total)
Iron (Total)
Magniesium (Total)
Manganese (Total)
Magniesium (Total)
Molybdenum (Total)
Nitrogen (Total) (Total)
pH (Saturate Paste)
Phosphorus (Total)
Potassium (Total)
Sodium (Total)
Soluble Salts
Sulfur
Zinc (Total)
Analytes Tested:
Boron (Total)
Calcium (Total)
Carbon (Total)
Copper (Total)
Iron (Total)
Magniesium (Total)
Manganese (Total)
Molybdenum (Total)
Nickel (Total)
Nitrogen (Total)
pH (Saturate Paste)
Phosphorus (Total)
Potassium (Total)
Sodium (Total)
Sulfur
Zinc (Total)
Analytes Tested:
Boron (Total)
Calcium (Total)
Carbon (Total)
Copper (Total)
EC - Salinity
Iron (Total)
Magniesium (Total)
Manganese (Total)
Molybdenum (Total)
Nitrogen (Total)
pH (Saturate Paste)
Phosphorus (Total)
Potassium (Total)
Sodium (Total)
Sulfur
Zinc (Total)
Analytes Tested:
Arsenic
Cadmium
Lead
Mercury
Analytes Tested:
pH
Carbohydrates
Crude Fat
Protein
Calories
Calcium (Total)
Iron (Total)
Magniesium (Total)
Sodium (Total)
Potassium (Total)
Analytes Tested:
pH
Carbohydrates
Crude Fat
Protein
Calories
Calcium (Total)
Iron (Total)
Magniesium (Total)
Sodium (Total)
Potassium (Total)
Brix (Sugars)
Total Coliform and E. coli MPN
Water Activity
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