標準號：BS ISO 23874-2007
中文標準名稱：天然氣.碳氫化合物露點計算用氣相色譜法的要求
英文標準名稱：Natural gas - Gas chromatographic requirements for hydrocarbon dewpoint calculation
標準類型：E24
發布日期：2007/3/30 12:00:00
實施日期：2007/3/30 12:00:00
中國標準分類號：E24
國際標準分類號：75.060
適用范圍：ISO 23874:2006 describes the performance requirements for analysis of treated natural gas of transmission or pipeline quality in sufficient detail so that the hydrocarbon dewpoint temperature can be calculated using an appropriate equation of state. ISO 23874:2006 can be applied to gases that have maximum dewpoint temperatures (cricondentherms) between 0 °C and - 50 °C. The pressures at which these maximum dewpoint temperatures are calculated are in the range 2 MPa (20 bar) to 5 MPa (50 bar).The procedure given in ISO 23874:2006 covers the measurement of hydrocarbons in the range C5 to C12. n-Pentane, which is quantitatively measured using ISO 6974 (all parts), is used as a bridge component and all C6 and higher hydrocarbons are measured relative to n-pentane. Major components are measured using ISO 6974 (all parts) and the ranges of components that can be measured are as defined in ISO 6974-1.