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+# R6 class for a plant protection product with at least one active ingredient
+
+Contains basic information about the active ingredients in the product
+
+## Format
+
+An [R6::R6Class](https://r6.r-lib.org/reference/R6Class.html) generator
+object.
+
+## Public fields
+
+- `name`:
+
+  The name of the product
+
+- `ais`:
+
+  A list of active ingredients
+
+- `concentrations`:
+
+  The concentration of the ais
+
+- `concentration_units`:
+
+  Defaults to g/L
+
+- `density`:
+
+  The density of the product
+
+- `density_units`:
+
+  Defaults to g/L
+
+## Methods
+
+### Public methods
+
+- [`ppp$new()`](#method-ppp-new)
+
+- [`ppp$clone()`](#method-ppp-clone)
+
+------------------------------------------------------------------------
+
+### Method `new()`
+
+Creates a new instance of this
+[R6](https://r6.r-lib.org/reference/R6Class.html) class.
+
+#### Usage
+
+    ppp$new(
+      name,
+      ...,
+      concentrations,
+      concentration_units = "g/L",
+      density = 1000,
+      density_units = "g/L"
+    )
+
+#### Arguments
+
+- `name`:
+
+  The name of the product
+
+- `...`:
+
+  Identifiers of the active ingredients
+
+- `concentrations`:
+
+  Concentrations of the active ingredients
+
+- `concentration_units`:
+
+  Defaults to g/L
+
+- `density`:
+
+  The density
+
+- `density_units`:
+
+  Defaults to g/L
+
+------------------------------------------------------------------------
+
+### Method `clone()`
+
+The objects of this class are cloneable with this method.
+
+#### Usage
+
+    ppp$clone(deep = FALSE)
+
+#### Arguments
+
+- `deep`:
+
+  Whether to make a deep clone.