Specifications

Standard specifications for PTFE graduated cylinders. Items marked Customizable are available upon request.

Capacity	Graduation (ml)	Total Height (mm)	Inner Diameter (mm)
10ml	0.2	145	15
25ml	0.5	170	20
50ml	1	200	25
100ml	2	250	30
250ml	5	310	40
500ml	10	360	50
1000ml	20	440	65

* Dimensions are typical values.

📌 Customization Notes:
• Material Upgrade: PFA (translucent, visible liquid level, lower metal leaching)
• Custom graduations available upon request
• Special specifications available upon request

Product Description

I. Overview

The PTFE graduated cylinder is manufactured from high-purity PTFE resin through cold pressing and high-temperature sintering. PTFE offers exceptional chemical resistance and is inert to almost all chemicals and solvents, making it ideal for volume measurement of strong acids (including HF), strong alkalis, and various organic solvents.

Featuring clear graduations and a pouring spout, the graduations are created using molded-in technology — permanently integrated into the cylinder body and will never wear off. The smooth inner wall prevents liquid from clinging, ensuring accurate readings.

Available in sizes from 10ml to 1000ml, widely used in pharmaceutical, chemical, semiconductor, environmental testing, and food analysis industries.

II. Core Performance Parameters

Purity: High-purity PTFE with ultra-low metal leaching (Pb, U < 0.01ppb)
Operating Temperature: -196℃ ~ 260℃, short-term up to 300℃
Chemical Resistance: Resistant to HF, aqua regia, concentrated H₂SO₄, HNO₃, strong alkalis, and organic solvents
Surface Properties: Smooth non-wetting inner wall, easy to clean
Graduation Process: Molded-in, permanently clear

III. Material & Workmanship

Manufactured from imported high-purity PTFE resin, precision cold-pressed in molds, and sintered in high-temperature furnaces — ensuring dense structure, smooth surface, and bubble-free finish. Graduations are formed during the molding process, integrated into the cylinder body.

All products are assembled and packaged in cleanroom environments to ensure contamination-free surfaces.

Applications

Typical Applications

Corrosive Liquid Measurement

Strong acids, alkalis, organic solvents

Ultra-pure Analysis

Sample measurement for ICP-MS, trace analysis

Semiconductor Industry

Ultra-pure chemical measurement and transfer

Environmental Monitoring

Water samples, acid digestate measurement

Low Temperature Experiments

Liquid measurement in liquid nitrogen environments

Application	Recommended Capacity	Recommended Material	Notes
Trace Element Analysis	10ml / 25ml	PFA	Ultra-pure operation
HF Solution Measurement	50ml / 100ml	PTFE	PTFE is the only reliable choice
Environmental Water Samples	100ml / 250ml	PTFE	Avoid cross-contamination
Organic Solvent Measurement	50ml / 100ml	PTFE	Ensure ventilation and fire safety
Semiconductor Ultra-pure Chemicals	100ml / 500ml	PFA	Cleanroom operation

Selection Guide

I. By Measurement Medium

Medium	Recommended Material	Recommended Capacity
Hydrofluoric Acid (HF)	PTFE (only reliable choice)	Based on volume
Aqua Regia / Concentrated Acids	PTFE	Based on volume
Strong Alkali Solutions	PTFE	Based on volume
Organic Solvents	PTFE	Based on volume
Ultrapure Water / Routine Solutions	PTFE / PFA	Based on volume

II. By Transparency Requirement

PTFE Cylinder: Opaque white — use auxiliary lighting or level indicator for reading
PFA Cylinder: Translucent — direct meniscus viewing for easier reading

III. By Capacity

10ml ~ 25ml: Micro liquid measurement, precious samples
50ml ~ 100ml: Routine laboratory liquid measurement
250ml ~ 500ml: Large volume liquid measurement
1000ml: Bulk liquid measurement

💡 Selection Tip: Choose a cylinder with capacity slightly larger than your sample volume — the liquid level should be in the upper-middle portion of the cylinder.
For ultra-trace analysis, PFA cylinders are recommended for ultra-low metal leaching.
For opaque PTFE cylinders, read with good lighting and use a level indicator if needed.

Operation & Maintenance

User Guide

Standard operating guidelines for PTFE graduated cylinders. Proper use and maintenance ensure measurement accuracy and extend product life.

I. Pre-use Preparation

Inspect the cylinder for cracks, deformations, and ensure graduations are clear
Clean the cylinder with ultrapure water or appropriate solvent to remove residues
For trace analysis applications, soak in 10% nitric acid for 24 hours, rinse thoroughly with ultrapure water, and dry
Ensure the cylinder is on a level, stable surface

II. Measurement Operation

Place the cylinder on a level surface for stability
Pour the liquid slowly down the inner wall to avoid bubbles
After the liquid stabilizes, align your eye level with the meniscus
For PTFE cylinders (opaque), use auxiliary lighting or a level indicator to assist reading
Read the scale at the bottom of the meniscus
Record readings to 1/2 of the smallest graduation

III. Pouring & Transfer

Pour slowly through the spout, using a glass rod to guide the flow and prevent splashing
After pouring, allow 15-30 seconds for residual liquid to drain down the inner wall
For complete transfer, rinse the inner wall 2-3 times with a small amount of solvent

IV. Cleaning & Maintenance

Routine Cleaning: Clean promptly after use with a soft cloth or sponge and neutral detergent
Stubborn Residues: Soak in dilute nitric acid
Important: Do not use hard brushes or abrasives — they may scratch the inner surface and affect graduation accuracy
Calibration: Periodic calibration is recommended

V. Important Notes

Do not heat cylinders (PTFE is heat-resistant but cylinders are precision instruments — heating affects accuracy)
Avoid dropping or impact — PTFE is relatively soft
Do not use for long-term solution storage
Avoid contact with molten alkali metals (Na, K) and elemental fluorine

💡 From a Seasoned Lab Technician: "Level the cylinder, level your eye" — The cylinder must be on a level surface, and your eye must be level with the meniscus to avoid parallax error.
For opaque PTFE cylinders, place a white or black background behind the cylinder and use reflected light to help locate the meniscus.
Graduated cylinders are "to-deliver" vessels — the volume poured out equals the reading. Never heat cylinders or store solutions in them long-term.

Care & Notes

Show care & notes

⚠️ Safety & Compliance Checklist

Chemical Safety

Corrosive liquid measurement must be performed in a fume hood

Protective Equipment

Wear safety goggles, lab coat, and acid/alkali resistant gloves

Calibration Standards

Cylinders should be calibrated periodically to ensure accuracy

Do not

Measurement Accuracy: Keep eye level with meniscus to avoid parallax error

PTFE Graduated Cylinder

Specifications

Product Description

I. Overview

II. Core Performance Parameters

III. Material & Workmanship

Applications

Corrosive Liquid Measurement

Ultra-pure Analysis

Semiconductor Industry

Environmental Monitoring

Low Temperature Experiments

Selection Guide

I. By Measurement Medium

II. By Transparency Requirement

III. By Capacity

User Guide

I. Pre-use Preparation

II. Measurement Operation

III. Pouring & Transfer

IV. Cleaning & Maintenance

V. Important Notes

Care & Notes

Chemical Safety

Protective Equipment

Calibration Standards

Need PTFE Graduated Cylinders?

PTFE Graduated Cylinder

Specifications

Product Description

I. Overview

II. Core Performance Parameters

III. Material & Workmanship

Applications

Corrosive Liquid Measurement

Ultra-pure Analysis

Semiconductor Industry

Environmental Monitoring

Low Temperature Experiments

Selection Guide

I. By Measurement Medium

II. By Transparency Requirement

III. By Capacity

User Guide

I. Pre-use Preparation

II. Measurement Operation

III. Pouring & Transfer

IV. Cleaning & Maintenance

V. Important Notes

Care & Notes

Chemical Safety

Protective Equipment

Calibration Standards

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Need PTFE Graduated Cylinders?