For individuals who seek to understand our test results in depth, this chart serves as a conversion table to assist you with the mathematical equations required to determine exposure to a specific weight of product or animal.
Additional conversion information is provided within our test results section – each pet food contains a varying number of grams per 8 ounce volume cup of food. Proper conversions are dependent on these weights being accurately accounted for. The number of grams or ounces per 8oz cup of food is always listed within our test results section (Registration is required).
| ppb (aka ng/g) | Parts per billion in 1 gram – 1,000ppb in 1ppm (1 ppb = 1ng/g = 1 mcg) |
| ppm | Parts per million in 1 kilogram = 1 mg in 35.2oz (or 1mg/kg) |
| mg | Milligram – 1,000mg in 1g |
| g | Gram – average 4g/tsp 28.35g in 1 ounce |
| 1oz | Ounce – Equivalent to 28.35g in 1 ounce, or 8oz in a volume cup |
| 100g | Standard measure = Equivalent to the number of grams in a 100g (3.5oz) sample. Measurement may be provided as oz/100g, mg/100g or g/100g |
| % | Equivalent to the number of grams in a 100g (3.5oz) sample |
| 1kg | 1 kilogram = 35.2oz or 2.2lbs Measurement may be provided as mg/kg |
| 1 cup | 8oz when measured by volume. Varies when measured by mass/weight |
| L | Liter – 33.814oz |
| dL | Deciliter = 0.0264 of 1 gallon |
| Gallon | 128oz or 8lbs |
| kcal | Kilocalorie – measurement of a single calorie May be listed as mg/1,000kcal – meaning the number of milligrams of substance found in 1,000kcals of a product |
| IU – VitD | 0.025mcg of cholecalciferol, ergocalciferol (1mcg = 0.001mg) |
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