HG/T 2377-2009 English PDF (HGT2377-2009)

This standard specifies the method for measuring the corrosion resistance of vitreous and porcelain enamels to boiling water and water vapor. This standard applies to the determination of the corrosion resistance of vitreous and porcelain enamels to boiling water or water vapor. This standard is also applicable to the determination of the corrosion resistance of vitreous and porcelain enamels to other corrosive media in liquid phase and gas phase. Note 1: When the test temperature is lower than the boiling point of water, it shall be indicated in the test report. Note 2: The pH value of water and the substances contained in it determine the corrosion resistance of the vitreous and porcelain enamel to water. In addition, the corrosion products of the vitreous and porcelain enamel and the corrosion products of borosilicate glass instruments used in the test will also affect the measurement results under liquid phase conditions. Therefore, different test results will be obtained depending on the corrosion time (see note in 8.1).