1. Whiteness: No significant color requirements for the bright material glass.
2. Bubble: Allow a certain width, a certain length of the bubble has a certain number, but can use steel needle broken bubble does not allow existence.
3. Transparent pimple: Refers to the melting of the vitreous, the capacity of less than 142L glasses, the length of not more than 1.0mm of the glass, the capacity of the 142~284mL glass, the length of less than 1.5mm, the glass body 1/3 of the transparency of a pimple not allowed to exist.
4. Miscellaneous particles: Refers to the opaque granular debris, the length is less than 0.5mm, not more than 1.
5. Cup roundness: refers to the cup mouth not round, its maximum diameter and minimum diameter difference is not 0.7~1.0mm.
6. Stripes: The distance from the 300mm visually apparent is not permitted.
7. The cup height is low deviation (the cup height is low deflection): one cup body the highest place with the lowest height difference is not much less than 1.0~1.5mm.
8. Cup Mouth thickness difference: not greater than 0.5~0.8mm.
9. Shear Seal: Finger stripes or centipede-like shear marks, not much longer than the 20~25mm, the width is not more than 2.0mm, more than 1 of the bottom, or white shiny, more than 3mm is not permitted.
10. Mould Printing: The cup body is the hidden imprint of the grain, the horizontal clear is not permitted.
11. Cup Body Suction flat: Refers to the cup body rugged, the horizontal clear is not permitted to have.
12. Wipe hair and Scratch: wipe the glass with the glass diameter friction, in the cup body left a loss of luster traces, flat see clearly not permitted. Abrasion refers to the glass cup collision between each other, the body surface of the scars left, shiny not allowed.