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custom round Reflex water Level Gauge Glass
Level Gauge Glass Physical Property
1. Appearance
1) Air bubble:
Diameter≤0.5mm, in the 10mm x 10mm area the quantity must be ≤3.Diameter from 0.5mm to 1.5mm dispersive air bubble, there is less 2 on the sight plane and less 5 on the No-sight plane. Their distance must be 40mm.
The air bubble of Diameter from 1.5mm to 2mm ≤3 on the No-sight plane. Their distance must 40mm.
On the sight plane, The distance to the side in 7.5mm,the air bubble of the diameter1mm mustnt be more 2.
2) The glass dont allow slag and scrap iron, etc. impurity.
3) Stripe: dont allow have palpable filaceous and pectinate stripe on the sight plane.
4) Cockle: In the side face, dont allow have the cockle of depth1mm.
5) Crack: dont allow have crack.
6) Scrape: On the sight plane and in the 7.5mm to edge, the scrape of less than 10mm dont allow more 2 strips.
7)The sight plane must be polishing, and sealing side must be rubbing and polishing.
2. Color and Lustre
It should be no color and transparent,and with its self tine green is allowed.
3. Water-resistance
Cooked in the water for 5 hours, then weigh up, then titration with 25ml 0~31ug/g
4. Alkali-resistance
Cooked in the 0.5N NaOH for 3 hours,then Weigh up,weightlessness should be ≤75mg/dm2
5. Temperature-resistance impacts capability
Put it into electric cooker, keep for 7min under the temperature of 260±1, then, put into the water of 20±1,it should not crack
6. Bend-resistance≥80MPa
Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion (~3 × 10 K at 20 °C), making them resistant to thermal shock, more so than any other common glass. Such glass is less subject to thermal stress and is commonly used for the construction of reagent bottles.
Our advantage:
1. Having domestic advanced complete produce equipment. There are includes automatic straight line cutter, Irregular shape cutter, Physical tempered furnace, Chemical toughen glass furnace, Optical coating production line, Bilateral edges polishing shine grinding machine, Beveled, Drilling, Water cutting, CNC edges polishing machine, Irreguar shape plate grinding mechine, Laser-mark mechine, Non dust silkscreen workshop;
2. Fluency production schedule;
3. Good quality control system;
4. Reasonable lead time, urgent oder adjustable, MOQ not requested;
5. Experienced for abroad marketing