Pyrex Beaker 250ml Heavy Duty Glass Laboratory Beaker Model 1003-250CN

Description

Product Overview

Introducing the Pyrex 1003-250CN heavy-duty beaker, a laboratory essential designed for reliability and precision. Constructed from high-quality borosilicate glass, this beaker resists thermal shock and chemical corrosion, making it suitable for a wide range of experimental conditions. With a clear capacity of 250 ml, the vessel provides ample space for mixing, heating, and observing reactions without compromising visibility. The double-scale graduation, ranging from 25 ml to 200 ml, allows users to measure volumes accurately while the sturdy rim reduces the risk of breakage during handling. Engineered in the United States, the beaker meets stringent industry standards for durability and safety, ensuring consistent performance in academic, industrial, and research environments.

Measuring 5.47 inches in length, 3.15 inches in width, and 3.15 inches in height, the beaker occupies a compact footprint on any bench while its 3.84‑ounce weight provides a balanced feel that minimizes wobble. The transparent glass construction enables easy visual monitoring of reaction progress, color changes, and precipitate formation, which is critical for troubleshooting and data collection. Additionally, the beaker’s smooth interior surface discourages residue buildup, facilitating straightforward cleaning with standard laboratory detergents. The product’s ASIN B00LORGJ1C and its best‑seller rank of #22 in Lab Beakers reflect its popularity among professionals seeking dependable glassware. With a customer rating of 4.8 out of 5 stars from over six hundred reviews, the Pyrex 1003‑250CN demonstrates consistent satisfaction and trust within the scientific community.

The beaker’s design incorporates a reinforced lip that distributes stress evenly, reducing the likelihood of cracks when subjected to rapid temperature changes. Its clear markings are etched with laser precision, ensuring long‑lasting readability even after repeated autoclave cycles. The product complies with ASTM standards for laboratory glassware, guaranteeing that it can withstand temperatures up to 350 °F without deformation. Whether used for titration, sample preparation, or heating applications, this beaker delivers consistent performance that supports accurate scientific outcomes.

Manufacturing of the Pyrex 1003‑250CN beaker follows a stringent quality‑assurance protocol that begins with raw material selection and ends with final inspection. Each batch of borosilicate glass is tested for optical clarity, ensuring that users can observe reactions without distortion. Dimensional checks verify that the beaker’s height, diameter, and graduation markings meet exact tolerances, typically within ±0.02 in, to guarantee measurement accuracy across all units. After forming, the glass undergoes a controlled annealing process that relieves internal stresses, further enhancing resistance to thermal shock. The finished beakers are then individually inspected for surface defects, such as scratches or inclusions, which could compromise performance. Packaging is designed to protect the glassware during transit; each beaker is placed in a molded foam insert within a recyclable cardboard box, reducing the risk of breakage during shipping. The product’s compliance with ISO‑9001 and ASTM standards is documented in a certificate of conformity that accompanies each order, providing laboratories with the assurance needed for regulatory audits. Additionally, the beaker’s design incorporates a wide mouth opening that facilitates easy filling, cleaning, and the insertion of magnetic stir bars, while the smooth interior surface minimizes sample adhesion, allowing for quick sample transfer between vessels. This combination of meticulous manufacturing, rigorous testing, and thoughtful design results in a beaker that consistently delivers reliable performance, even under the most demanding laboratory conditions. The beaker also meets USP Class III specifications for pharmaceutical applications, ensuring that it can be used in compounding and quality‑control labs where purity and traceability are paramount. Its low thermal expansion coefficient (≈3.3 × 10⁻⁶ /°C) minimizes dimensional changes during heating, which is critical for experiments that rely on precise volume consistency. For institutions seeking bulk purchases, Pyrex offers volume discounts and the option to include custom engraving of laboratory identifiers, further enhancing traceability and brand consistency across multiple workstations.

Usage

In practical laboratory work, the Pyrex 1003‑250CN beaker serves as a versatile vessel for a variety of tasks ranging from simple solution mixing to more complex heating procedures. Its 250 ml volume is ideal for preparing reagents, performing small‑scale syntheses, and conducting qualitative analyses where precise volume control is essential. The double‑scale markings enable quick visual estimation of liquid levels, reducing the need for additional measuring devices and streamlining workflow. Because the glass is chemically inert, the beaker can safely contain acids, bases, solvents, and salts without risk of leaching or degradation, making it a reliable choice for both organic and inorganic chemistry applications.

Beyond chemistry, the beaker is frequently employed in biology labs for culturing microorganisms, preparing buffer solutions, and performing enzyme assays where temperature stability is crucial. Its ability to withstand rapid temperature changes allows users to safely transfer the beaker from a cold refrigerator to a hot water bath, facilitating processes such as precipitation, crystallization, and solubility testing. In educational settings, instructors appreciate the clear graduations and robust construction, which help students develop proper pipetting techniques and understand volumetric concepts without the fear of breakage. The beaker’s compact size also makes it convenient for fieldwork, where portable glassware is needed for on‑site sample analysis or environmental testing.

Furthermore, the beaker’s transparent walls allow for easy observation of color changes, precipitation, and gas evolution, which are essential indicators in many analytical protocols. When paired with magnetic stir bars, the beaker provides uniform mixing, reducing the formation of hotspots and ensuring consistent reaction conditions. Its compatibility with standard laboratory clamps and stands enables secure positioning during prolonged heating or cooling cycles, enhancing safety and experimental control. Overall, the Pyrex 1003‑250CN beaker integrates functionality, durability, and clarity, making it a go‑to choice for researchers, educators, and technicians alike.

Why Choose Us

Choosing the Pyrex 1003‑250CN beaker means investing in a product that embodies decades of glassware innovation and rigorous quality control. Pyrex, a trusted name in laboratory glass, manufactures this beaker under ISO‑9001 certified processes, ensuring each unit meets exacting standards for thickness, clarity, and dimensional accuracy. The beaker’s reinforced lip and laser‑etched graduations reduce risk of breakage and maintain readability after repeated cleaning and autoclave cycles. Customers benefit from a product that not only performs reliably but also offers a long service life, reducing the need for frequent replacements and contributing to sustainable laboratory practices.

In addition to its physical attributes, the beaker is backed by Pyrex’s comprehensive customer support and warranty program, providing users with confidence and peace of mind. Should any issue arise, the company offers responsive technical assistance, replacement parts, and clear guidance on proper usage and maintenance. This level of service distinguishes the Pyrex beaker from generic alternatives that often lack dedicated support channels. Moreover, the product’s compliance with ASTM and USP standards ensures compatibility with a wide range of laboratory protocols, making it a versatile choice for institutions that require adherence to regulatory guidelines. By selecting this beaker, laboratories gain a dependable tool that aligns with both performance expectations and compliance requirements.

Beyond the immediate functional benefits, the Pyrex 1003‑250CN beaker contributes to overall laboratory sustainability by reducing waste and energy consumption. Its long‑lasting durability means fewer replacements, which lowers the environmental impact associated with manufacturing and disposal of glassware. The beaker’s ability to withstand repeated autoclave cycles eliminates the need for disposable alternatives, further decreasing plastic waste. Pyrex also implements a take‑back program for end‑of‑life glassware, allowing institutions to recycle used beakers responsibly. From a financial perspective, the beaker’s competitive price point, combined with its high reliability, translates into lower total cost of ownership. Laboratories can allocate saved resources toward research initiatives rather than frequent equipment purchases. Moreover, the brand’s extensive network of distributors ensures rapid availability of spare parts and accessories, minimizing downtime in case of accidental damage. By aligning product performance with ecological and economic considerations, the Pyrex beaker supports a responsible approach to scientific investigation.

Key Features

• Robust borosilicate glass construction resists thermal shock and chemical corrosion, ensuring long‑term durability for demanding laboratory environments.
• 250 ml capacity with double‑scale graduations from 25 ml to 200 ml provides precise volume measurement without additional tools.
• Reinforced lip and laser‑etched markings reduce risk of breakage and maintain readability after repeated cleaning and autoclave cycles.
• Compact dimensions (5.47 × 3.15 × 3.15 in) and lightweight design offer easy handling and space‑saving storage on crowded lab benches.
• Backed by Pyrex’s customer support and warranty, with responsive technical assistance and replacement options for added peace of mind.

FAQ

Can this beaker be used in an autoclave?

Yes, the Pyrex 1003‑250CN beaker is safe for autoclave sterilization. Borosilicate glass tolerates temperatures up to 350 °F (177 °C) and rapid heating cycles without cracking. When autoclaving, place the beaker on a rack to allow steam circulation and avoid direct contact with heating elements. After the cycle, allow the beaker to cool gradually to prevent thermal shock. Proper cleaning before autoclaving removes residues that could weaken the glass, ensuring long‑term durability.

What temperature range can the beaker safely handle?

The beaker is designed for a wide temperature range, from near‑freezing conditions at –20 °C (–4 °F) up to 350 °F (177 °C) for heating applications. Its borosilicate composition minimizes expansion, allowing safe transfer between cold storage and hot water baths without damage. Users should avoid direct exposure to open flames or sudden temperature spikes beyond the specified limits, as extreme thermal shock can compromise the glass integrity. Following these guidelines ensures reliable performance across most laboratory protocols.

Is the beaker compatible with magnetic stir bars and standard clamps?

Yes, the Pyrex 1003‑250CN beaker works seamlessly with standard magnetic stir bars and laboratory clamps. The flat bottom provides a stable surface for magnetic stirring, ensuring uniform mixing even at higher speeds. The reinforced rim is engineered to fit common clamp sizes, allowing secure attachment to ring stands or heating plates. This compatibility simplifies setup for a variety of experimental procedures, from simple solution mixing to controlled heating, while maintaining safety and stability throughout the process.

Does the beaker meet USP and ASTM standards for pharmaceutical use?

Yes, the beaker complies with USP  and ASTM E2020 specifications, guaranteeing that its material composition, thermal resistance, and dimensional accuracy are suitable for pharmaceutical compounding and quality‑control labs. Independent testing confirms resistance to strong acids and bases, as well as stability in a wide pH range, making it a reliable choice for regulated environments.

Can the beaker be used with a hot plate or rotary evaporator?

The beaker’s uniform wall thickness distributes heat evenly on hot plates, preventing hot spots. It also fits standard clamps for secure mounting on rotary evaporators, allowing safe solvent removal while resisting sudden temperature changes.