100ml Glass Measuring Cylinder
Capacity(ml):5/10/25/50/100/250/500/1000/2000/5000
2.Stoppered measuring cylinder
Capacity(ml):5/10/25/50/100/250/500/1000/2000
***Price List for whole above, inquire us to get
Description
Technical Parameters
A 100 ml glass measuring cylinder is a fundamental laboratory tool designed for precise liquid volume measurement, balancing accuracy, durability, and ease of use. The cylinder features a clear, etched scale with 1 ml or 0.5 ml subdivisions, enabling readings accurate to ±0.5–1 ml (Class B tolerance). This precision suits routine tasks like solution preparation or titration setups. Typically crafted from borosilicate glass (e.g., Pyrex), it resists thermal expansion, chemical corrosion, and mechanical stress. The transparent walls allow real-time observation of liquid clarity, color, or sediment during mixing. Its narrow cylindrical shape reduces the meniscus effect (surface curvature), minimizing parallax errors when viewed at eye level. The height-to-width ratio also stabilizes the cylinder, even when filled to capacity. A poured spout ensures smooth, drip-free transfer of liquids. The hexagonal or rounded base prevents tipping, while the reinforced rim guards against chipping or cracking. The scale's contrasting markings (often white or black) enhance visibility against the glass, aiding accurate interpretation of the liquid's concave or convex meniscus. Ideal for educational, research, or industrial labs, it accommodates aqueous solutions, solvents, and mild acids/bases. Its compact size (shorter than 250/500 ml variants) saves bench space while offering sufficient capacity for small-scale experiments.
Specifications
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applications in the Paint & Coatings Industry
A 100 ml glass measuring cylinder is indispensable in the paint and coatings sector for precise formulation and quality control. It is used to measure solvents, binders, pigments, and additives in small-scale trials, ensuring accurate ratios for viscosity adjustments, color mixing, and resin blending. The transparent glass allows real-time observation of settling, dispersion, and compatibility tests. Its calibrated scale supports dilution calculations (e.g., thinning agents) and density/solids content measurements via volume displacement. The cylinder's chemical resistance to solvents and acids ensures durability during formulations with alkyds, acrylics, or epoxy resins. Additionally, it aids in standardized testing (e.g., ASTM methods) for flow, leveling, and film thickness validation, ensuring product consistency. Its affordability and precision make it a staple in R&D labs and pilot production lines.
Formulation and Ingredient Proportioning
- Accurate Volume Measurement:
Paint formulations require precise ratios of solvents, binders, pigments, and additives. The 100ml cylinder's clear graduations (typically in 1ml or 0.5ml intervals) allow technicians to measure small volumes of high-cost components (e.g., catalysts, dyes, or rheology modifiers) with minimal error.
- Multi-Component Systems:
For two-component epoxy or polyurethane coatings, the cylinder ensures exact ratios of resin and hardener, critical for curing performance and final properties.
Viscosity and Flow Testing
- Diluent/Solvent Adjustments:
To achieve optimal application viscosity, painters may dilute coatings with solvents. The 100ml cylinder enables precise addition of thinners, ensuring consistency across batches.
- Flow Behavior Studies:
Researchers use graduated cylinders to assess coatings' self-leveling properties by measuring flow time or film thickness after pouring a fixed volume onto a substrate.
Pigment Dispersion and Color Matching
- Tinting and Shade Verification:
In color labs, technicians measure pigment pastes or dyes in 100ml cylinders before blending them into base paints. The transparent glass allows visual confirmation of homogeneity and color accuracy.
- Opacity Testing:
By pouring controlled volumes of pigmented coatings into cylinders, engineers can evaluate hiding power (opacity) by comparing contrast ratios against black/white backgrounds.
Density and Specific Gravity Determination
- ASTM/ISO Compliance:
The 100ml cylinder is used in hydrometer tests to measure coating density, a key parameter for quality control. By weighing a known volume of paint, manufacturers calculate specific gravity to verify compliance with industry standards (e.g., ASTM D1475).
- Solids Content Analysis:
In combination with a pycnometer, the cylinder aids in determining the volume solids of a coating, which impacts coverage rate and film thickness.
Stability and Settling Tests
- Sedimentation Rate Studies:
To assess pigment suspension stability, coatings are poured into 100ml cylinders and observed over time for settling, flocculation, or phase separation. This helps optimize dispersant levels and milling processes.
- Anti-Settling Additive Evaluation:
Formulators test the efficacy of thickeners or anti-settling agents by comparing sediment volumes in treated vs. untreated samples.
Application and Spray Performance Trials
- Spray Pattern Simulation:
Technicians may pour 100ml of coating into a reservoir to simulate spray gun operation, adjusting nozzle pressure or tip size to achieve the desired flow rate and atomization.
- Wet Film Thickness (WFT) Verification:
By applying a measured volume of paint to a test panel via a drawdown bar or applicator, the cylinder ensures consistent WFT, which correlates with dry film thickness (DFT) and protective properties.
Quality Control and Batch Consistency
- Inter-Batch Comparison:
Manufacturers use 100ml cylinders to sample and compare volumes from different production runs, verifying uniformity in viscosity, color, and solids content.
- Defect Troubleshooting:
If a batch fails QC tests (e.g., excessive settling or poor adhesion), the cylinder enables retesting of sub-samples to isolate the root cause.
Environmental and Safety Testing
- VOC Content Measurement:
In regulatory compliance (e.g., EPA methods for volatile organic compounds), the cylinder is used to prepare samples for gas chromatography by accurately diluting coatings with solvents.
- Flash Point Testing:
For flammability assessments, controlled volumes of paint are poured into cylinders for flash point determination using devices like the Pensky-Martens apparatus.
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Borosilicate glass measuring cylinders are a cornerstone of the paint and coatings industry, offering a harmonious blend of precision, durability, and cost-efficiency that meets the demands of daily laboratory operations. Crafted from borosilicate glass-a material renowned for its resistance to thermal shock, chemical corrosion, and mechanical stress-these cylinders endure exposure to aggressive solvents, acids, alkalis, and volatile organic compounds (VOCs) commonly used in formulations. This chemical resilience minimizes the risk of degradation, leaching, or cross-contamination, ensuring sample integrity and operator safety.
In formulation and quality control, the 100 ml borosilicate cylinder serves as a reliable workhorse. Its clear, non-porous surface allows for accurate visual monitoring of liquid levels, while precisely calibrated graduations enable consistent measurement of volumes for mixing, dilution, or titration tasks. Unlike disposable plastics, borosilicate cylinders withstand repeated autoclaving or harsh cleaning agents, reducing long-term costs and waste. Their affordability compared to higher-precision glassware (e.g., Class A volumetric flasks) makes them ideal for routine procedures where strict regulatory compliance isn't mandatory, such as preliminary testing, batch adjustments, or process optimization.
For tasks requiring strict adherence to standards-like validating viscosity, pigment dispersion, or regulatory submissions-specialized volumetric flasks or pipettes may supplement these cylinders. However, the 100 ml borosilicate cylinder remains indispensable for its versatility, balancing accuracy with practicality. Its robustness ensures consistency across experiments, while its budget-friendly nature aligns with the industry's need for scalable, reproducible results without compromising on quality. Whether preparing samples, verifying formulations, or troubleshooting production issues, this tool embodies the efficiency and reliability essential to the paint and coatings sector.
Chemical Inertness:
- Borosilicate glass, such as Pyrex® or Duran®, exhibits exceptional resistance to solvents commonly used in coatings, including xylene, acetone, toluene, and MEK (methyl ethyl ketone). Unlike plastic alternatives (e.g., HDPE or PP), which may swell, crack, or leach plasticizers, borosilicate glass remains chemically stable, ensuring no contamination of the sample or degradation of the cylinder.
Thermal Shock Tolerance:
- In processes requiring heating (e.g., pigment dispersion or resin melting) or rapid cooling (e.g., post-cleaning), borosilicate's low coefficient of thermal expansion prevents cracking, extending the cylinder's lifespan.
Effortless Cleaning:
- The smooth, glassy surface of borosilicate cylinders allows residues (e.g., dried paint, pigments, or additives) to be easily removed by rinsing with solvents or detergents. Stubborn residues can be scrubbed without scratching, unlike plastic cylinders that may develop micro-abrasions.
Avoidance of Memory Effects:
- Unlike some plastics that can absorb hydrophobic compounds (e.g., oils or silicone-based additives), borosilicate glass does not retain residues, ensuring accurate measurements in subsequent tests.
Balanced Accuracy:
While volumetric flasks and pipettes offer higher precision (e.g., Class A tolerances), they are often overkill for routine tasks like:
- Batch consistency checks (e.g., verifying viscosity adjustments).
- Solvent dilution (e.g., preparing 10% solutions for testing).
- Small-scale trials (e.g., pigment tinting).
- A 100ml Class B borosilicate cylinder (±0.6ml tolerance at full capacity) provides sufficient accuracy for these applications at a fraction of the cost.
Economical Scalability:
- In R&D or pilot plants, where multiple measurements are needed daily, the affordability of borosilicate cylinders allows labs to stock a larger quantity without compromising data reliability.
Real-Time Observation:
The transparency of borosilicate glass enables technicians to monitor:
- Homogeneity (e.g., checking for undispersed pigments).
- Flow behavior (e.g., sedimentation rates in settling tests).
- Color matching (e.g., comparing tinted samples against color standards).
Meniscus Readability:
- The glass's clarity reduces glare and distortion, improving the accuracy of volume readings compared to frosted or opaque materials.
Non-Reactive Certification:
- Borosilicate glass meets FDA, USP, and ISO standards for inertness, making it suitable for coatings used in food packaging, medical devices, or children's toys.
Waste Reduction:
- Its durability minimizes breakage and replacement costs, aligning with sustainability goals in industrial labs.
Design Features
A 100 ml glass measuring cylinder is engineered to withstand rigorous laboratory use while maintaining precision, thanks to its robust design and material properties. Constructed from borosilicate glass (e.g., Pyrex or Duran), the cylinder resists thermal shock, chemical corrosion, and mechanical stress. This material can endure sudden temperature changes (e.g., transferring hot/cold liquids) without cracking, unlike standard soda-lime glass. Borosilicate's low coefficient of thermal expansion and high silica content make it scratch-resistant and less prone to breakage from minor impacts. While not unbreakable, it withstands routine handling better than plastic alternatives. The thickened rim at the top prevents chipping during pouring or stacking, while the hexagonal or heavy-duty base provides stability, reducing accidental tip-overs that could cause fractures. Its non-reactive surface resists degradation from acids, bases, and organic solvents, ensuring longevity even with repeated exposure to harsh reagents. This property also prevents leaching of contaminants into samples. Unlike plastic cylinders, which may warp or develop scratches over time, glass maintains dimensional stability, preserving accurate graduations and calibration throughout its lifespan. Many models are autoclavable (up to 121°C), allowing sterilization without damage, ideal for microbiology or pharmaceutical applications.
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