PATIKIL 250ml 500ml 1000ml Volumetric Flask, 3.3 Borosilicate Glass Graduated Volumetric Measuring Flask with Glass Stopper Tolerance 0.23ml for Lab Experiment, Clear

The volumetric flask is used to accurately prepare a liquid solution of a certain substance's concentration. These flasks are suitable for use in professional laboratories and other settings where chemicals are used.Specification Capacity:250ml 500ml 1000mlColor: ClearMaterial: 3.3 Borosilicate GlassSize:250 X 80mm/9.84 X 3.15 inch (H*OD)；300 X 101mm/11.81 X 3.98 inch (H*OD); 362 X 126mm/14.25 X 4.96 inch (H*OD)Flask Neck Outer Diameter:21mm / 0.83 inch; 24mm / 0.94 inch;27mm / 1.06 inchFlask Neck Inner Diameter:15mm / 0.59 inch; 17mm / 0.67 inch; 19mm / 0.75 inchFlask Cap Diameter:14 mm / 0.55 inch; 16 mm / 0.63 inch; 18 mm / 0.71 inchTolerance:20 degrees celsius±0.15ml; 0.25ml; 0.4mlPacking List:1 x 250ml volumetric flask, 1 x 500ml volumetric flask, 1 x 1000ml volumetric flaskAdvantage1. The volumetric flask and the stopper are made of low expansion coefficient thickened borosilicate glass which can resist high and low temperatures and has superior chemical durability.2. The bottle mouth has a glass stopper to reduce evaporation and prevent liquid leakage. The long neck shape is convenient for holding and shaking to mix liquid.3. The transparent bottle body and accurate white graduation line ensure the accuracy of your experiments.InstructionWhen pouring liquid, use a glass rod to slowly transfer the solution, when the liquid is close to the scale line, you can use a dropper to drip slowly until the liquid concave surface reaches the scale line, tighten the stopper of the bottle and shake moderately to mix the liquid evenly.Note: Please use it with care to avoid damage. When mixing liquids, make sure the cap is tightly closed. When you finish using the volumetric flask, please remember to clean it and ensure it is dry after cleaning.

• Capacity:250ml,500ml,1000ml; Color: Clear; Material:3.3 Borosilicate Glass; Size:250 X 80mm/9.84X3.15''(H*OD);300X101mm/11.81X3.98''(H*OD);362X126mm/14.25X4.96''(H*OD); Flask Neck Outer Diameter:21mm/0.83'';24mm/0.94'';27mm/1.06''; Flask Neck Inner Diameter:15mm/0.59'';17mm/0.67'';19mm/0.75''; Flask Cap Diameter:14mm/ 0.55'';16mm/0.63'';18mm/0.71''; Tolerance:20 degrees celsius±0.15ml;0.25ml;0.4ml; Packing List:1x 250ml,1x 500ml,1x 1000ml volumetric flask
• Advantage: The volumetric flask and the stopper are made of low expansion coefficient thickened borosilicate glass which can resist high and low temperatures and has superior chemical durability; The bottle mouth has a glass stopper to reduce evaporation and prevent liquid leakage. The long neck shape is convenient for holding and shaking to mix liquid; The transparent bottle body and accurate white graduation line ensure the accuracy of your experiments.
• Instruction: When pouring liquid, use a glass rod to slowly transfer the solution, when the liquid is close to the scale line, you can use a dropper to drip slowly until the liquid concave surface reaches the scale line, tighten the stopper of the bottle and shake moderately to mix the liquid evenly
• Application: Suitable for various occasions, the flask is suitable for a variety of occasions, such as laboratories, chemical rooms, and so on.
• Note: Please use with care to avoid damage; When mixing liquids, make sure the cap is tightly closed; When you finish using the volumetric flask, please remember to clean it and ensure it is dry after cleaning.