50ml Glass Volumetric Flask
Guide Medlab 50ml volumetric flasks are precision‑grade volumetric glassware made of 3.3 borosilicate glass. As popular small‑capacity lab vessels, they are ideal for preparing standard solutions and conducting precise dilution in analytical experiments. Calibrated at 20 °C with distinct etched graduation marks, these flasks support either ground glass stoppers or plastic stoppers as your option. Featuring solid chemical resistance, they suit routine work in chemical laboratories, pharmaceutical QC departments and educational teaching labs.
Description
50ml Glass Volumetric Flask
Guide Medlab 50ml volumetric flasks are precision‑grade volumetric glassware made of 3.3 borosilicate glass. As popular small‑capacity lab vessels, they are ideal for preparing standard solutions and conducting precise dilution in analytical experiments. Calibrated at 20 °C with distinct etched graduation marks, these flasks support either ground glass stoppers or plastic stoppers as your option. Featuring solid chemical resistance, they suit routine work in chemical laboratories, pharmaceutical QC departments and educational teaching labs.
Product Specification
| Product Name | 50ml Glass Volumetric Flask |
| Material | High Borosilicate 3.3 Glass |
| Stopper Option | Glass stopper / Plastic stopper |
| Calibration Temperature | 20℃ |
| Feature | Etched Calibration Mark, Flat‑bottom, Clear |
| OEM | Custom logo & packaging acceptable |
Application
Guide Medlab 50ml glass volumetric flasks are precision‑class volumetric vessels crafted from 3.3 borosilicate glass. Built for high‑accuracy solution preparation and quantitative dilution, they come with etched graduation marks calibrated at 20 °C. They are widely applied in analytical chemistry labs, pharmaceutical quality control, environmental testing and university teaching facilities.
• Accurate preparation of small‑volume standard solutions and reference reagents
• Precise quantitative dilution of test samples for instrumental analytical work
• Constant‑volume handling for chemical and physical performance tests
• Quantitative sample setup for lab calibration and routine QC procedures
Usage Method
Thoroughly clean the volumetric flask before use. Transfer pre‑dissolved samples or reagents into the flask. Add solvent to just below the graduation mark, then carefully top up to the calibrated line. Seal with the matching stopper and invert repeatedly to fully homogenize the solution. Do not heat the volumetric flask or store samples inside for long periods. Clean and dry the flask thoroughly after finishing experiments.
Precautions
(1) Never dissolve solutes directly in the volumetric flask. Dissolve materials in a beaker first, then transfer the solution into the volumetric flask.
(2) Ensure the total volume of beaker‑rinsing solvent does not exceed the graduation mark. If liquid goes over the calibration line, discard the solution and prepare a new batch.
(3) Volumetric flasks are not intended for heating. For exothermic dissolving processes, allow the solution to cool fully before transfer. Temperature rise causes mismatched thermal expansion between glass and liquid, which will result in inaccurate volume readings.
Quality Control
Package, Storage and Transportation
● Packing
Each volumetric flask receives individual protective treatment against collision damage, then packed within standard export cartons. Custom‑tailored packing options are offered upon customer request.
● Storage
Keep volumetric flasks in dry, cool and well‑ventilated indoor areas. Shield products from heavy blows and sharp impacts.
● Transportation
Multiple shipping alternatives can be arranged based on order volume. Secure goods against compression, collision and moisture throughout transit.
| Specification | 5ml | 10ml | 20ml | 25ml | 50ml | 100ml |
|---|---|---|---|---|---|---|
| Qty per Carton | 400pcs/carton | 400pcs/carton | 240pcs/carton | 240pcs/carton | 200pcs/carton | 120pcs/carton |
| Specification | 200ml | 250ml | 500ml | 1000ml | 2000ml | 5000ml |
| Qty per Carton | 72pcs/carton | 72pcs/carton | 48pcs/carton | 24pcs/carton | 12pcs/carton | 4pcs/carton |
FAQ
Q1: Do you offer free samples?
Yes, we provide free samples (usually 5‑10pcs) for your evaluation. Shipping cost is covered by the customer or negotiated separately.
Q2: What is the minimum order quantity (MOQ)?
MOQ varies for glass labware. For this 50ml glass volumetric flask, MOQ is 5 cartons. Reinforced export carton packaging is applied to lower breakage risk during transportation.
Q3: What payment methods do you accept?
We accept T/T (bank transfer) or pay through Alibaba.
Q4: Can I add my own design or logo to the product?
Yes, we provide OEM/ODM service. Custom logo and customized packaging are both supported.
Q5: Can you provide CE and ISO for your products?
Yes, our glass volumetric flasks come with complete technical documentations including CE and ISO certificates. Material and calibration test reports can be provided on request.
Q6: Do you support shipping insurance and freight options?
Yes, shipping insurance is available for glass consignments to cover potential breakage. Multiple freight options can be matched according to your destination and delivery schedule.
Q7: What is your lead time for mass production?
Normally 7‑15 working days after receiving your deposit. Exact lead time depends on order volume and customization requirements.
Q8: How do you handle broken goods upon arrival?
All glass products are well‑packed for export. Please capture photos of damaged items and outer carton within 48 hours after receipt. We will discuss compensation or replacement based on actual damage condition.
Q9: What stopper types are available for this 50ml volumetric flask?
We offer two stopper choices: ground glass stopper and plastic stopper. Pick the proper option according to your experimental reagents.
Q10: Can this volumetric flask be applied for direct heating?
No. Volumetric flasks belong to precision‑grade measuring glassware. Direct heating is prohibited, as it may trigger volume deviation and permanent glass damage.
Q11: What calibration standard do these flasks comply with?
This 50ml volumetric flask features permanently etched graduation marks calibrated at 20 °C, built for reliable preparation and dilution of standard solutions.
Q12: Are other volumetric flask capacities available for selection?
We provide a complete series covering various volumetric flask sizes. Contact our team to obtain the full size chart and up‑to‑date quotation.
Q13: Could you share tips for daily operation and storage?
Keep flasks in dry indoor conditions and protect them from heavy impacts. Always pair each flask with its original matched stopper. Discard any scratched or cracked flasks to secure measurement accuracy and lab‑operation safety.
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