Beschreibung
Watch glass dishes with 70 mm diameter are circular laboratory glassware items used for covering beakers, evaporating small liquid volumes, weighing solids or observing samples under controlled conditions. Produced from soda-lime glass of the 3rd hydrolytic class, they are free from cadmium and lead and feature fire-polished edges that improve handling safety and reduce chipping risk. The precise outer diameter of 70 mm ensures stable seating on standard vessels while the clear glass permits unobstructed visual inspection. Packed in units of 10 pieces (bulk outer packs of 30 × 10 pieces), these dishes support efficient stocking in teaching, research and routine analytical laboratories. The soda-lime glass construction from manufacturer Marienfeld delivers the expected chemical resistance and thermal behaviour for everyday lab work. Their simple, robust form makes them suitable for sample preparation, drying steps and temporary containment of powders or residues without introducing metallic contaminants. Consistent dimensions and smooth edges facilitate repeated use and easy cleaning under normal laboratory protocols.
This article is part of Watch glasses & crystallising dishes, in Dishes, crucibles & porcelain.
Key features
- Pack size: 10 pc(s)
- Diameter: 70 mm
- Material: Soda-lime glass
- Hydrolytic class: 3rd
- Edges: Fire-polished
- EAN: 4250317303431
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Questions about Watch glasses 70 mm diameter,
What is this article?
Watch glasses 70 mm diameter, is the article on this page. Luminix Health distributes Marienfeld for laboratory use. It sits in Watch glasses & crystallising dishes, inside Dishes, crucibles & porcelain, in Laborbedarf.
A watch glass is a shallow curved cover or a dish for drying a few grams. A crystallising dish is the flatter, wider dish a solution is left in while a solid comes out. Neither is volumetric. Diameter is the specification.
A dish is an open vessel for drying, evaporating or holding a solid. Porcelain and glazed ceramic take a higher temperature than borosilicate glass, which is why a crucible, not a beaker, goes into a furnace. A watch glass covers, or holds a small amount for drying. A mortar is for grinding. The temperature and the chemical, not the shape alone, choose the material. Laboratory ware of this family is listed under ISO laboratory ware.
Which category should I open next?
The category is Dishes, crucibles & porcelain. The sub-category is Watch glasses & crystallising dishes. The catalogue is Laborbedarf.
Shelves beside this one are Crucibles, Trays, bowls & tubs, Mortars & pestles, Evaporating dishes and Dishes (other).
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.