500ml Glass Volumetric Flask

500ml Glass Volumetric Flask

Guide Medlab 500ml volumetric flasks are precision‑grade measuring glassware made of high‑quality 3.3 borosilicate glass. As one of the most versatile mainstream sizes for laboratory workflows, they are ideal for daily standard‑solution preparation, routine dilution and general quantitative analysis. Accurately calibrated at 20 °C with durable etched graduation marks, these flasks are available with either ground glass stoppers or plastic stoppers to satisfy varied experimental requirements. Boasting great chemical stability and corrosion resistance, they are widely used for routine testing in chemical laboratories, pharmaceutical quality control, environmental monitoring and academic teaching labs.

Jiangsu Guide Medlab manufactures high‑quality 3.3 borosilicate glass volumetric flasks in multiple sizes, manufactured in compliance with ISO standards. Custom logos and custom packaging services are available upon request. Our volumetric flasks adopt 3.3 borosilicate glass meeting HG/T 3115 requirements and are packed in corrugated export cartons complying with GB/T 6543.

Product Specification

Product Name	500ml 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 500ml glass volumetric flasks are precision-class volumetric vessels crafted from premium 3.3 borosilicate glass. Designed for high-accuracy medium-volume solution preparation and standardized quantitative dilution, each flask is equipped with clear etched graduation marks calibrated at 20°C. As a highly versatile specification that balances daily experimental use and moderate batch testing, these flasks are widely applied in analytical chemistry laboratories, pharmaceutical quality control departments, environmental monitoring institutions and university teaching laboratories.

●Accurate preparation of medium-volume standard solutions and reference reagents for daily experiments and moderate batch testing

●Precise quantitative dilution of conventional test samples for routine instrumental analysis and general laboratory testing

●Standard constant-volume operation for daily chemical reagent formulation and physical performance testing

●Stable quantitative sample preparation for regular laboratory calibration and daily quality control testing

Usage Method

Thoroughly clean the 500ml volumetric flask before experimental operation. Transfer fully dissolved samples or reagents into the flask, add solvent to just below the graduation mark, and carefully top up the liquid to the accurate calibrated line. Seal the flask tightly with the matched stopper and invert it repeatedly to thoroughly homogenize the solution.

This precision volumetric flask is not applicable for direct heating or long-term sample storage. After finishing all experimental work, clean and fully dry the flask properly to ensure stable performance for repeated use.

Precautions

(1) Never dissolve solid solutes directly inside the 500ml volumetric flask. Complete solute dissolution in a beaker in advance, then transfer the well-mixed solution to the volumetric flask for constant-volume preparation.

(2) The total volume of solvent used for rinsing the beaker shall not exceed the flask's graduation mark. If the liquid level exceeds the calibrated scale, the solution will be invalid and needs to be re-prepared.

(3) Volumetric flasks are strictly forbidden to be heated. For exothermic dissolution reactions, cool the solution to room temperature completely before transfer. High temperature will cause inconsistent thermal expansion between the glass vessel and internal liquid, leading to inaccurate volumetric data and reducing experimental precision.

Quality Control

Packing, Storage and Transportation

● Packing All 500ml glass volumetric flasks are securely packed in qualified corrugated cartons complying with GB/T 6543 standards. Outer packaging meets GB/T 191 requirements, clearly marked with product name, specifications, quantity, net weight, gross weight and volume for export identification.

● Storage Keep packaged volumetric flasks in dry indoor conditions. Carton stacking height should not exceed 10 layers to prevent extrusion‑caused glass damage. Keep away from strong acids, strong alkalis, chlorides and other corrosive chemicals.

● Transportation Various transport modes are available for different order needs. Avoid dropping, violent impact and heavy compression during loading, unloading and transit to minimize glass breakage risks.

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 supply free samples (normally 5‑10 pieces) for your performance evaluation. Buyer covers the shipping cost, or freight can be discussed separately.

Q2: What is the minimum order quantity (MOQ)?

MOQ differs across glass labware items. For this 500ml glass volumetric flask, MOQ is 5 cartons. Reinforced export cartons with thick cushion materials are adopted to lower breakage risks in transit.

Q3: What payment methods do you accept?

We support T/T bank transfer and Alibaba trade order payments.

Q4: Can I add my own design or logo to the product?

Yes, OEM and ODM services are available. Custom‑printed logos and bespoke packaging are both supported.

Q5: Can you provide CE and ISO documents for these goods?

Sure. Our glass volumetric flasks come with full technical documentation including CE and ISO certificates. Material reports and calibration test records can be sent upon your request.

Q6: Do you offer shipping insurance and multiple freight solutions?

Shipping insurance is available for glass shipments to offset possible breakage losses. We can arrange various freight options according to your destination and delivery timeline.

Q7: What is your mass‑production lead time?

Generally 7‑15 working days after deposit receipt. Actual lead time depends on order volume and custom requirements.

Q8: How do you handle damaged‑upon‑arrival glass items?

All glassware is well‑packed for export. Please take clear photos of broken goods and outer cartons within 48 hours after goods arrival. We will work out compensation or replacement solutions based on real damage conditions.

Q9: What stopper types fit this 500ml volumetric flask?

Two stopper options are provided: ground glass stopper and plastic stopper. Select the suitable one based on your reagents and routine medium‑volume solution‑preparing scenarios.

Q10: Can this volumetric flask be heated directly?

No. Volumetric flasks are precision measuring glassware. Direct heating is forbidden; it will cause permanent volume shift and glass damage, which will affect measurement accuracy.

Q11: What calibration standard are these flasks built to?

This 500ml volumetric flask has durable etched graduation marks calibrated at 20 °C, made for high‑precision medium‑volume standard solution preparation and dilution.

Q12: Are volumetric flasks offered in other capacities?

We carry a full size range covering small‑size up to large‑capacity volumetric flasks. Reach out to our sales team for full size list and latest quotation.

Q13: Could you offer daily operation and storage suggestions?

Store this 500ml volumetric flask indoors in dry and stable locations to prevent tipping and collision. Always use its matched stopper for reliable sealing. Retire any cracked or deformed flasks to secure volumetric accuracy and lab safety.

Hot Tags: 500ml glass volumetric flask, China, suppliers, manufacturers, factory, custom, wholesale, price, pricelist, free sample