This calculation is done twice to determine the calculated water stream density and the calculated water standard density. These are required for the C

Symbol | Description | Units |
---|---|---|

ρ_{w} |
Calculated density | kg/m^{3} |

t | Temperature, either standard or stream | °C |

Constant | Value |
---|---|

a_{w0} |
999.8395639 |

a_{w1} |
6.798299989e^{-2} |

a_{w2} |
-9.106025564e^{-3} |

a_{w3} |
1.005272999e^{-4} |

a_{w4} |
-1.126713526e^{-6} |

a_{w5} |
6.591795606e^{-9} |

A | 7.0134e^{-8} |

B | 7.926504e^{-6} |

C | -7.575677e^{-8} |

D | 7.314894e^{-10} |

E | -3.596458e^{-12} |

t_{0} |
3.9818 |

ρ_{0} |
999.97358 |

Symbol | Description | Units |
---|---|---|

Fp | Compressibility Factor | - |

t_{1} |
Upstream temperature | °C |

Symbol | Description | Units |
---|---|---|

C_{p} |
Pressure correction factor | - |

F_{p} |
Compressibility factor | - |

p_{1} |
Upstream pressure | bar g |

Symbol | Description | Units |
---|---|---|

C_{t} |
Temperature correction factor | - |

ρ_{w,std} |
Calculated water standard density | kg/Sm^{3} |

ρ_{w,strm} |
Calculated water stream density | kg/m^{3
} |

Symbol | Description | Units |
---|---|---|

ρ_{1} |
Water upstream density | kg/m^{3} |

ρ_{std} |
Water standard density | kg/Sm^{3} |

C_{p} |
Pressure correction factor | - |

C_{t} |
Temperature correction factor | - |

- BS EN ISO 8222: Petroleum measurement systems – Calibration Temperature corrections for use with volumetric reference measuring systems, 1996
- BS EN ISO 8222: Petroleum measurement systems – Calibration Temperature corrections for use when calibrating volumetric proving tanks, 2002