Miele Dishwasher 관리 및 유지보수 - 페이지 14

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Miele Dishwasher 관리 및 유지보수
Technical Information
2. Borosilicate glass:
3. Crystal glass:
4. Lead crystal glass:
Frequent washing changes the surface properties of glass even if it is
chemically resistant. In addition to the contact with water, the frequent
changes between wet and dry periods also play a role.
Usually it takes considerable time until signs of wear due to washing in a
dishwasher appear. In particular scratches are everyday signs of wear and
tear that sooner or later will appear on any glass washed regularly in a
dishwasher. Glasses contact each other and other items in the dishwasher,
particularly during loading and unloading. Water and detergent in
conjunction with temperature jumps between hot wash cycles and cooler
interim rinses, act to enlarge existing scratches and blemishes.
Lime cloudiness that can be removed with sufficient detergent dispensing or
the action of a low concentration acid without residues remaining is known
as reversible cloudiness. Such cloudiness is also an indication that the
water has too many hardening constituents such as magnesium and
calcium ions. In addition to mechanical damage and reversible cloudiness,
washing in a dishwasher can also cause irreversible evidence of
corrosion. Corrosion damage ranges from various types of cloudiness to
discoloration of various colors (from that resembling mother of pearl to
bluish, greenish or brownish shimmering).
More durable glass resistant to the effects of chemicals and
sharp temperature changes (cooking and baking, and laboratory
glassware).
Colorless, highly pure glass (table glassware, gift items) with
increased potassium content.
Glass with a particularly brilliant appearance and high specific
weight (cut glass, luxury items) with at least 24% lead oxide
content.
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