Parts per Ten Million
type: Unit
description: Dimensionless unit for concentration. Recommended practice is to use specific units such as $ug/l$.
applicable system: ASU
applicable system: CGS
applicable system: CGS-EMU
applicable system: CGS-ESU
applicable system: CGS-GAUSS
applicable system: IMPERIAL
applicable system: PLANCK
applicable system: SI
conversion multiplier: 0.0000001
conversion multiplier SN: 1.0E-7
has dimension vector: A0E0L0I0M0H0T0D1
has quantity kind: AmountOfSubstanceFraction
has quantity kind: DimensionlessRatio
has quantity kind: MoleFraction
scaling of: UNITLESS
symbol: PPTM
unit for quantity kind: AmountOfSubstanceFraction
unit for quantity kind: DimensionlessRatio
unit for quantity kind: MoleFraction