ULAB Scientific Glass Beakers, 400ml, Borosilicate Griffin Low Form with Graduation, Pack of 3

Please be advised that the glassware items are fragile and may incur damage during transit. Upon receiving a broken product, you can consider the following options:

1. Contact us for a refund, provided the remaining items are sufficient for your needs.
2. Reach out to Amazon for a replacement, if a replacement is required.

The package includes 3 pieces of 400 ml (13.5 oz) beakers, fabricated using 3.3 Borosilicate glass material in a Griffin Low Form design with Printed Graduation. These beakers are designed to withstand repeated standard autoclave cycles of 121°C at 15 psi for 5 minutes. They are suitable for heating via hot plate, flame, oven, microwave, or heating mantles, with the ability to withstand temperatures up to 230°C during normal use and up to 490°C in extreme service. Additionally, these products can be cooled to as low as -230°C. However, it is crucial to avoid directly plunging the product into a liquid coolant. Instead, place the product in the vapor phase of the liquefied gases to allow for gradual cooling before immersion in the coolant.

It is important to note the following remarks:

1. These beakers are not recommended for accurate measuring purposes.
2. Ensure there are no water droplets on the outer wall of the beaker when heated, as this can lead to uneven heating.
3. When heating liquid in the beaker, do not exceed 2/3 of the volume capacity, with 1/2 of the volume being the most appropriate.
4. During the dissolution or dilution process, refrain from touching the bottom or wall of the beaker with a glass rod while stirring.
5. When heating corrosive drugs, consider covering the mouth of the beaker with a watch glass to prevent liquid splashing.
6. Beakers are common laboratory glassware, typically made of glass, plastic, or heat-resistant glass, featuring a cylindrical shape with a notch on the top for convenient pouring. Some beakers may also have a scale marked on the outer wall to provide a rough estimate of the liquid volume.

The provided 3 pieces of 400 ml (13.5 oz) beakers are made of 3.3 Borosilicate glass, ensuring uniform wall thickness and an extra-large marking spot. The tolerance is approximately +/- 5%, meeting the ASTM Specification E960, Type I requirements.

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