西气东输进口钢管抽样方案的确定

The Determination on Sampling Scenario of Imported Steel Pipe for West-to-East Gas Pipeline Project

针对西气东输天然气管道工程钢管进口的实际情况,应用数理统计的方法,对进口钢管的相关数值指标进行了统计,进而确定了使抽样检验结果具有一定可信度的采样数值范围,并根据进口钢管的清单确定了取样样本数量。

Applying mathematical and statistics method,the author adds up the related indexes of imported steel pipe used for West-to-East Gas Pipeline Project determinates the sampling scope of spot check results with a certain confidence level,and gives the sample number of steel pipe sampling, which is very helpful to the determination of the sampling scenario of imported steel pipe for West-to-East Gas Pipeline Project.