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文章通过分析、对比,阐述了ISO 49:1994和ISO 7-1:1994两个标准对管件内螺纹长度规定的不协调问题,并提出了通过修订ISO 49:1994标准实现标准协调统一的建议。
Through the analysis and comparison, this paper elaborates the incompatibility between the two standards ISO 49: 1994 and ISO 7-1: 1994 on the regulation of the internal thread length of pipe fittings, and puts forward the proposal of revising the standard harmonization through the revision of ISO 49: 1994.