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The Inspection of Internal Coating

Internal coatings
When tested the materials for internal coatings shall conform to the following requirements:
resistance to salt spray                                   : at least 350 h in accordance with ISO 7253;
resistance to waste water                               : at least 30d at 23 °C;
chemical resistancefrom pH2 to pH 12       : at least 30d at 23 °C.
When tested in accordance with 5.7.2, the internal coatings on finished products shall conform to the following requirements:
dry coating thickness                : not greater than 400 μm (except for specific coatings for

special applications), and at least the minimum factory

applied thickness  to be specified by the manufacturer

adhesion                                                            : in accordance with level 1 of EN ISO 2409;
resistance to hot water                                   : 24hat 95 °C;
resistance to temperature cycling                : 1500 cycles between 15 °C and 93 °C.

BML PIPES 01


Post time: Jun-27-2022