Improving natural gas safety NPL has recently completed a highly successful industrial project to compare methods of measuring the hydrocarbon dew point of natural gas. The hydrocarbon dew point (HCDP) is the temperature, at a given pressure, at which the hydrocarbon components of natural gas start to condense out. It is vital to the safety of the UK's natural gas transmission network that the conditions within the pipeline are such that this dangerous condensate is prevented from forming. Accurate measurement of the HCDP is essential to ensure that the gas network meets with current legislative requirements that relate to this issue. NPL, National Grid, and three other UK companies undertook a project together to compare the different dew point measurement techniques currently in use. As

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