Features and Benefits:
- Material: Made from durable, non-reactive glass, which makes it suitable for various chemical and biological applications.
- Diameter: At 90 mm, this size is versatile for covering beakers, evaporating liquids, or holding small samples.
- Concave Shape: The curved surface helps to minimize evaporation when covering liquids and can also serve as a makeshift weighing dish.
- Heat Resistance: Some watch glasses can withstand moderate heat, making them useful for certain applications in the lab.
- Easy to Clean: Glass is easy to wash and can often be sterilized, which is crucial for maintaining a clean lab environment.
Technical Data
- Laboratory environments require highly reliable tools to ensure precision and safety during experiments.
- The Watch Glass 90 mm China for Biology Lab stands out as an essential piece of apparatus for educational, medical, and industrial research facilities. Crafted from high-grade borosilicate glass, this concave watch glass 90mm variant provides exceptional resistance to thermal shock and chemical corrosion.
- Sourced from leading manufacturers, this 90mm laboratory watch glass China product meets strict international standards.
- It features a perfectly fire-polished edge to prevent chipping and ensure safe handling by students and lab technicians alike.
- The slight concave depression is meticulously engineered to hold specific liquid volumes and solid samples securely without spillage.
Why Choose the 90mm Watch Glass?
- Selecting the right biology lab watch glass 90mm size is crucial for standard laboratory workflows.
- A 90mm diameter provides the optimal surface area for weighing small chemical compounds, air-drying precipitates, and covering small beakers.
- When used as a watch glass beaker cover 90mm item, it prevents dust and airborne contaminants from compromising your solutions while allowing clear visual monitoring.
- This specific China watch glass 90mm model is highly favored in educational institutions across Bangladesh.
- School biology labs benefit from its durable construction, which withstands frequent sterilization cycles.
- Whether you are looking for a reliable evaporating dish alternative for small-scale crystallizations or a sturdy mixing surface, this product delivers consistent performance.
Industry Use-Cases in Bangladesh Production Lines
The utility of the Watch Glass 90 mm China for Biology Lab extends far beyond academic institutions. Several prominent industrial sectors in Bangladesh rely heavily on this precise laboratory glassware to maintain rigorous quality control tools and standards.
Ready-Made Garments (RMG) and Textile Sector
In the booming Bangladeshi textile industry, dye houses and testing laboratories require highly accurate chemical measurements. Technicians utilize the concave watch glass 90mm to weigh dyes, pigments, and chemical auxiliaries before mixing. The chemically resistant glass watch glass 90mm China fabric ensures that aggressive textile chemicals do not etch or damage the surface, preserving measurement accuracy over time.
Pharmaceutical Manufacturing
Pharmaceutical quality control labs demand sterile, non-reactive equipment to test raw materials and finished formulations. This laboratory watch glass 90 mm unit serves as an ideal platform for holding active pharmaceutical ingredients (APIs) during visual inspections. Its smooth, non-porous surface guarantees zero cross-contamination, making it an indispensable asset for local medicine manufacturers.
Food and Beverage Processing
Maintaining hygiene and precise formulations is critical in food testing facilities. Laboratories use the watch glass 90mm for biology lab cultures and moisture loss analysis. It acts as a reliable watch glass beaker cover Watch Glass 90mm shields to protect sensitive food samples from environmental contamination during standard testing procedures.
Technical Comparison against Industry Standards
| Technical Parameter | Standard Laboratory Glassware | Watch Glass 90 mm China (Premium) |
| Diameter | Variable (often inconsistent) | Exact 90 mm |
| Material Composition | Soda-lime glass | Premium Borosilicate Glass |
| Chemical Resistance | Moderate | High (Acid and Alkali Resistant) |
| Thermal Tolerance | Low thermal shock resistance | High heat resistance |
| Edge Finish | Ground edges (prone to chipping) | Fire-polished smooth edges |
| Curvature Accuracy | Inconsistent depth | Uniform concave design |

Images are reference only. Actual product may be different.
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Watch Glass, 90 mm, China





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