Calculate the COSHH risk level — coshh

Queries the hazard x quantity x volatility matrix of the COSHH Essentials method to obtain the potential risk level (1 to 4). Substances of grade "E" (carcinogenic, mutagenic or similar) always receive the maximum level, regardless of quantity or volatility.

Usage

coshh_risk(grade, quantity, volatility)

Arguments

grade: Character. Hazard group ("A" to "E"), as returned by coshh_grade().
quantity: Character. Quantity class in the active language. Use "Small" / "Medium" / "Large" (English) or "Pequeña" / "Mediana" / "Grande" (Spanish).
volatility: Character. Volatility class in the active language. Use "Low" / "Medium" / "High" (English) or "Baja" / "Media" / "Alta" (Spanish). For solids, this corresponds to dustiness.

Value

Integer with the risk level (1 to 4), or NA_integer_ if the combination is not defined in the table or grade is NA.

Examples

coshh_risk(grade = "C", quantity = "Medium", volatility = "High")
#> [1] 3
coshh_risk(grade = "E", quantity = "Small",  volatility = "Low")
#> [1] 4