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GB/T12576-1997《液化石油气蒸气压和相对密度及辛烷值计算法》国家标准第1号修改单本修改单经国家质量技术监督局于2000年1月3日以质技监标函[2000]005号文批准,自2000年3月1日起实施。(1)第51条改用新条文:“51 液化石油气蒸气压的计算试样在378℃时的蒸气压(表压)...
GB / T12576-1997 “liquefied petroleum gas vapor pressure and relative density and octane number calculation method” National Standard No. 1 Amendment single This revision by the State Quality and Technical Supervision in January 3, 2000 with the quality and technical letter [2000] No. 005 approved since March 1, 2000 come into operation. (1) The new section 51 is replaced by the new clauses: "51 Calculation of vapor pressure of liquefied petroleum gas Vapor pressure (gauge) at 378 ° C ...