| 20090165534 | METHOD AND APPARATUS FOR TESTING LEAKAGE OF PIPE PASSAGE - A method for testing leakage of a pipe passage employs a flow rate of gas used in testing supplied to the inside of a pipe passage undergoing testing hermetically sealed on one side while detecting flow rate with a flow measuring device and pressure with a pressure detector, and detecting temperature of the gas used, and inputting the detected values of pressure, flow rate and temperature into a computation treatment apparatus, and internal capacity V | 07-02-2009 |
