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LAB HOUSE Measuring Cylinder Multiple Capacity Clear Polypropylene, LB-46 (Pack of 4 Pcs) is a cylindrical laboratory instrument used for measuring the volume of liquids with a high degree of accuracy. It is an essential tool in various scientific disciplines, including chemistry, biology, physics, and analytical research, where precise volume measurements are crucial.
The design of a measuring cylinder typically consists of a tall, cylindrical glass or plastic tube with a uniform diameter. It has calibrated markings along its length, indicating volume measurements in milliliters (mL) or cubic centimeters (cm³). The bottom of the measuring cylinder is often flat, allowing it to stand securely on a laboratory bench or other surface.
Using a measuring cylinder involves the following steps:
Selection: Choose a measuring cylinder of an appropriate size to accommodate the volume of liquid you intend to measure. It's important to choose a cylinder with a capacity that exceeds the volume you're measuring to prevent spills.
Filling: Carefully pour the liquid into the measuring cylinder, using a funnel if necessary. It's important to pour the liquid slowly and avoid splashing to ensure accurate measurements.
Reading: Read the volume measurement at the bottom of the meniscus, which is the curved surface of the liquid. The meniscus forms due to capillary action and may be slightly concave or convex. Make sure your eye is at the same level as the measurement mark for accurate reading.
Accuracy: Measuring cylinders are designed for approximate measurements. To improve accuracy, use the measurement closest to the calibration line that the meniscus touches.
Measuring cylinders are widely used for various applications:
Solution Preparation: They are used to accurately measure and mix solutions during chemical reactions, titrations, and dilutions.
Volume Transfer: Measuring cylinders are used to transfer specific volumes of liquids from one container to another for various experiments and analyses.
Density Determination: They are employed in experiments to determine the density of liquids by measuring the volume and mass.
Quality Control: Measuring cylinders are used in industries to ensure accurate measurements in manufacturing processes, such as producing beverages or pharmaceuticals.
While measuring cylinders provide relatively accurate measurements, they are generally not suitable for highly precise applications due to the potential for parallax errors and meniscus variation. For more precise measurements, specialized volumetric glassware such as volumetric flasks and pipettes are preferred. Nonetheless, measuring cylinders remain valuable tools for quickly and conveniently measuring approximate volumes of liquids in laboratory settings.

LAB HOUSE Vernier Caliper 125 mm Length Matt Finish Stainless Steel, LB-41 is a precision measuring instrument used to accurately measure linear dimensions, such as length, width, and thickness. It is an essential tool in various industries, including engineering, manufacturing, and scientific research, where precise measurements are crucial for quality control and analysis.
The design of a Vernier caliper consists of a main scale and an auxiliary scale called the Vernier scale. The main scale is a ruler-like component with evenly spaced graduations representing a standard unit of measurement, such as millimeters or inches. The sliding jaw can be moved along the main scale, and the fixed jaw is used to anchor the caliper to the object being measured.
The key feature of the Vernier caliper is the Vernier scale, which is located on the sliding jaw and runs parallel to the main scale. The Vernier scale consists of smaller graduations that are slightly offset from the main scale markings. When the caliper is closed, one of the Vernier scale graduations aligns precisely with a main scale graduation. As the caliper is opened to measure an object, the Vernier scale graduations move relative to the main scale, allowing for measurements with high precision.
Using a Vernier caliper involves the following steps:
Preparation: Ensure the caliper is clean and properly zeroed before use.
Measurement: Position the object between the jaws of the caliper. Close the jaws gently until they securely hold the object. Read the main scale measurement aligned with the zero mark on the Vernier scale.
Vernier Reading: Examine the Vernier scale to determine which Vernier graduation aligns perfectly with a main scale graduation. The Vernier reading represents the fractional part of the measurement.
Final Measurement: Add the main scale reading and the Vernier reading to obtain the accurate measurement of the object.
Vernier calipers are versatile tools with several advantages:
High Precision: The Vernier scale allows for measurements with greater precision than simple rulers or tape measures.
Inside and Outside Measurements: The design of the caliper allows for measuring both inside and outside dimensions of objects.
Depth Measurement: Some Vernier calipers feature a depth gauge for measuring depths of holes or recesses.
Durable and Accurate: Vernier calipers are made from durable materials like stainless steel, ensuring long-term accuracy and reliability.
In summary, a Vernier caliper is a sophisticated measuring instrument that employs the Vernier scale to provide precise and reliable measurements of linear dimensions. Its design and functionality make it an essential tool in various industries where accuracy is paramount for manufacturing, quality control, and scientific analysis.

LAB HOUSE Vernier Caliper 125 mm Length Stainless Steel for Lab and General Use, LB-15 is a precision measuring instrument used to accurately measure linear dimensions such as length, width, and thickness. It is widely employed in fields like engineering, manufacturing, and scientific research where precise measurements are crucial. The Vernier caliper is named after its inventor, Pierre Vernier, and it is renowned for its ability to provide highly accurate readings.
The Vernier caliper consists of a main scale, an auxiliary scale called the Vernier scale, a sliding jaw, and a fixed jaw. The main scale is a ruler-like component with graduated markings representing a standard unit of measurement, such as millimeters or inches. The sliding jaw can be moved along the main scale, and the fixed jaw is used to anchor the caliper to the object being measured.
The key feature of the Vernier caliper is the Vernier scale, which is located on the sliding jaw and runs parallel to the main scale. The Vernier scale consists of smaller graduations that are slightly offset from the main scale's markings. When the caliper is closed, one of the Vernier scale graduations aligns precisely with a main scale graduation. As the caliper is opened to measure an object, the Vernier scale graduations move relative to the main scale, allowing for measurements with high precision.
To measure an object using a Vernier caliper, the jaws are positioned around the object, and the caliper is gently closed until it fits snugly. The user reads the main scale measurement aligned with the zero mark on the Vernier scale. The Vernier scale is then inspected to determine the additional measurement, or "Vernier reading," that aligns with a main scale graduation. The sum of the main scale and Vernier scale readings provides the accurate measurement of the object.
Vernier calipers come in various sizes and configurations, including digital versions that provide readouts on a display screen. They are particularly useful for measuring dimensions that are difficult to access using traditional rulers or tape measures, and their high precision makes them valuable for tasks requiring meticulous accuracy, such as machining, quality control, and scientific experiments.
In summary, a Vernier caliper is a sophisticated measuring instrument that utilizes the Vernier scale to provide precise and reliable measurements of linear dimensions. Its design and functionality make it an essential tool in a wide range of applications where accuracy is paramount.

LAB HOUSE Watch Glass 100 mm Diameter, LB-06 (Pack of 6 Pcs) is a simple yet versatile piece of laboratory equipment used primarily in chemistry and biology. It is a circular, slightly concave piece of glass with a flat bottom and a raised rim, resembling a miniature shallow dish. The watch glass is designed to perform a variety of functions that aid in laboratory experiments, sample handling, and observation.
One of the primary uses of a watch glass is as a cover for beakers and evaporating dishes. Placing a watch glass on top of a beaker or dish helps prevent contamination, evaporation, or splattering of the contents. This is particularly important when conducting experiments that involve heating, evaporation, or reactions that might release volatile substances.
The slightly concave shape of the watch glass allows it to hold small amounts of liquid, making it suitable for tasks like holding samples for observation under a microscope or allowing small-scale reactions to occur. It can also serve as a surface for drying and collecting precipitates or crystals. The raised rim helps contain liquids and materials within the watch glass, preventing spillage.
Additionally, watch glasses can be used as makeshift lids for Petri dishes, providing a protective cover for cultures or specimens while still allowing air exchange. They are also employed as platforms for weighing small quantities of substances on a balance.
Due to their transparency, watch glasses enable easy visual inspection of the contents, facilitating observation and analysis. They are relatively easy to clean and sterilize, making them suitable for a wide range of applications in laboratory settings.
In summary, a watch glass is a fundamental tool in laboratories, serving as a versatile cover, holder, and observation platform for various tasks. Its simple design and practical functions make it an essential item for researchers, chemists, biologists, and students conducting experiments and analyses in the fields of science.