Glass Cup Selection Method

- Jan 07, 2019-

1. Whiteness: No obvious coloring is required for the clear glass.

2. Bubbles: A certain number of bubbles of a certain width and a certain length are allowed to exist, and bubbles that can be pierced with a steel needle are not allowed to exist.

3. Transparent enamel: refers to a glass body with uneven melting. For a glass with a capacity of less than 142L, no more than one length is less than 1.0mm; for a glass with a capacity of 142~284mL, the length is not more than 1.5mm. One, the transparency of the cup body 1/3 is not allowed to exist.

4, miscellaneous grains: refers to opaque granular debris, the length is not more than 0.5mm, no more than one.

5, cup roundness: refers to the cup mouth is not round, its maximum diameter and minimum diameter difference is not more than 0.7~1.0mm.6, stripe: distance 300mm visually obvious is not allowed.

7, cup height deviation (cup body height and low skew): the height difference between the highest and lowest points of a cup body is not more than 1.0 ~ 1.5mm.

8, cup thickness difference: not more than 0.5 ~ 0.8mm.

9. Shear printing: refers to stripe or braided shear marks, the length is not more than 20~25mm, the width is not more than 2.0mm, no more than one, more than the bottom of the cup, or whitening, more than 3mm is not allowed.

10, Molding: The cup body is a looming record of the record line, and the flat view is obviously not allowed.

11, cup body sucking: refers to the cup body uneven, plain vision is not allowed.

12, rubbing and scratching: rubbing refers to the friction between the glass and the diameter of the glass, leaving a trace of tarnishing in the cup, it is obvious that it is not allowed to see. Abrasion refers to the collision between the glasses, and the scars left on the surface of the cup are not allowed to shine.