AI (Advanced)

GSM from Swatch Mass

Mass per unit area from a weighed specimen (ASTM D3776 approach).

Weighed specimen mass

Specimen area

Number of specimens weighed together

Import tool JSON

Formula or method

GSM (g/m²) = total specimen mass (g) ÷ (specimen area (cm²) × number of specimens) × 10,000. Ounces per square yard = GSM ÷ 33.906.

Inputs: {"specimenMass":1.8,"specimenArea":100,"specimenCount":1}
Substitution: GSM (g/m²) = total specimen mass (g) ÷ (specimen area (cm²) × number of specimens) × 10,000. Ounces per square yard = GSM ÷ 33.906.
Result: 180

Specimens are conditioned and cut with a calibrated round cutter or a measured template, and the balance is calibrated.
Mass entered is the combined mass of all specimens counted in the field above.

No image or construction prediction is used: the result is only as accurate as the weighed specimen and its measured area.
A single specimen is indicative; use the specimen count required by the authorized test method for a reportable value.