What is the OAKTON EW-27503-75 Model KNO3 Reference Fill Solution?

The OAKTON EW-27503-75 Model KNO3 Reference Fill Solution is a high-quality solution designed for use with ion-selective electrodes, particularly for measuring potassium ion concentrations. It comes in a 1m size, ensuring an adequate volume for repeated testing. This solution is essential for laboratory applications and field testing where precise ion measurements are crucial. Its formulation helps maintain consistent accuracy and reliability in readings across various pH levels.

How should I store the KNO3 Reference Fill Solution?

To ensure the longevity and effectiveness of the KNO3 Reference Fill Solution, it should be stored upright in a cool, dry place away from direct sunlight. Ideal storage conditions help to prevent contamination and evaporation, which can alter the solution's concentration. When not in use, keeping the cap securely closed also aids in preventing moisture ingress, ensuring that you get accurate readings every time.

What are some common applications of KNO3 Reference Fill Solution?

The KNO3 Reference Fill Solution is commonly used in laboratory settings for various applications, including environmental testing, water quality assessments, and agricultural studies. Scientists and technicians utilize this solution to calibrate ion-selective electrodes, which are integral to obtaining precise measurements of potassium concentrations in samples. Both academia and industry professionals rely on its reliability for consistent results.

Why is using a reference fill solution important?

Using a reference fill solution is crucial for obtaining accurate measurements with ion-selective electrodes. This solution maintains a stable reference potential, which is essential for reliable readings of ion concentrations. A well-maintained ion-selective electrode with an appropriate fill solution enhances measurement accuracy in various applications, including soil testing or water quality monitoring, where precise data can impact significant decisions.

How do I know if my KNO3 Reference Fill Solution is expired?

While KNO3 Reference Fill Solutions do not have an explicit expiration date, signs of expiration can include changes in color, clarity, or odor. If the solution appears cloudy or has particles, it may need to be replaced. Additionally, if your ion-selective electrodes are giving inconsistent readings despite proper calibration, this may indicate that the fill solution is no longer effective, prompting a need for a new supply.

Can I use the KNO3 solution for other types of electrodes?

The KNO3 Reference Fill Solution is specifically designed for ion-selective electrodes that measure potassium concentration. While it may not suit all electrode types, it works well for most potassium-selective systems. If you are using other electrodes, it's important to check the manufacturer's specifications to determine the appropriate fill solution. Each electrode type can have unique requirements for optimal performance.

How often should I replace the reference fill solution in my electrode?

The frequency of replacing the reference fill solution can vary based on usage, but a good practice is to replace it after every few uses or whenever you notice a drop in measurement accuracy. Regular maintenance is key to ensuring reliable performance. Keeping track of usage and monitoring electrode performance can help you determine the right replacement schedule, promoting better lab practices.

Is the KNO3 Reference Fill Solution compatible with all measurement devices?

The KNO3 Reference Fill Solution is primarily suitable for ion-selective electrodes designed for measuring potassium concentration. Compatibility with other measurement devices largely depends on their construction and calibration requirements. For devices not explicitly designed for potassium measurements, consulting the product manual or the manufacturer is advisable to ensure proper use and avoid inaccurate readings.

What safety precautions should I take when handling the KNO3 Reference Fill Solution?

When handling the KNO3 Reference Fill Solution, it's important to wear appropriate personal protective equipment, such as gloves and goggles, to avoid skin and eye irritation. Use the solution in a well-ventilated area or a fume hood to minimize inhalation risks. Following safety data sheets and lab protocols will ensure safe handling, making your laboratory environment safer for everyone.

Where can I buy OAKTON EW-27503-75 Model KNO3 Reference Fill Solution, 1m Size?

You can purchase the OAKTON EW-27503-75 Model KNO3 Reference Fill Solution, 1m size from Ubuy. They offer a comprehensive online shopping experience, including product delivery across Lesotho. Shopping through Ubuy guarantees easy access to this essential laboratory solution, ensuring you have what you need for accurate and reliable testing.

How to Shop OAKTON EW-27503-75 Model KNO3 Reference Fill Online From Ubuy?

It’s easy to shop OAKTON EW-27503-75 Model KNO3 Reference Fill online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.

Is OAKTON EW-27503-75 Model KNO3 Reference Fill Available to Shop Online in Lesotho?

Yes, at Ubuy Lesotho this product is available for you to shop at a reasonable price. The OAKTON EW-27503-75 Model KNO3 Reference Fill is not available locally but you can trust us with our express shipping services.

How Long Does It Take to Get Product After Placing the Order?

The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

Oakton

Item #: 163590582

OAKTON EW-27503-75 Model KNO3 Reference Fill Solution, 1m Size

Item #: 163590582

LSL 890

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

^{*All items will import from US}

Availability : In stock

Imported from USA store

QTY:

Order now and get it around Saturday, December 19

Secured transaction

Our Top Logistics Partners

U-Care Warranty:

None

Select a Plan

Fast
Shipping

Free
Return^*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

High Purity

The OAKTON KNO3 reference fill solution ensures high accuracy and reliability in measurements, making it ideal for laboratory and field use, addressing the need for precision in various applications.

Convenient Size

The 1m size offers the right volume for multiple uses while minimizing waste, perfect for labs needing an efficient, effective solution without excessive stock or frequent reordering.

Versatile Application

Designed for diverse potentiometric measurements, this fill solution meets the demands of various scientific disciplines, providing consistency and quality in testing procedures for professionals and students alike.

Product Details

Container Type	Bottle
Item Form	Liquid
Item Weight	16 ounces (453.6 grams)
Brand Name	Oakton
Unit Count	1 Count
Manufacturer	OAKTON INSTRUMENTS
Model Number	EW-27503-75
Part Number	EW-27503-75
Brand	Oakton
Package Information	Bottle

Who Should Buy?

Laboratory Use
Ideal for laboratories requiring accurate pH measurements with reliable reference fill solution for ion-selective electrodes.
Educational Institutions
Perfect for schools and universities conducting experiments in chemistry and environmental science classes.
Field Testing
Beneficial for professionals conducting field tests that require dependable ionic concentration for water analysis.

Non-Scientific Applications
Not suitable for users needing pH solutions for everyday household or non-scientific purposes.

Product Description

OAKTON EW-27503-75 Model KNO3 Reference Fill Solution, 1m Size

Have any Query? Chat with us

Customer Questions & Answers

Question: How to Shop OAKTON EW-27503-75 Model KNO3 Reference Fill Online From Ubuy?

Answer: It’s easy to shop OAKTON EW-27503-75 Model KNO3 Reference Fill online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.
Question: Is OAKTON EW-27503-75 Model KNO3 Reference Fill Available to Shop Online in Lesotho?

Answer: Yes, at Ubuy Lesotho this product is available for you to shop at a reasonable price. The OAKTON EW-27503-75 Model KNO3 Reference Fill is not available locally but you can trust us with our express shipping services.
Question: How Long Does It Take to Get Product After Placing the Order?

Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

Oakton Electrolyte Solutions EW-27503-75 Editorial Review

OAKTON EW-27503-75 Model KNO3 Reference Fill Solution, 1m Size is a quality liquid solution designed for effective reference filling. Packaged in a convenient bottle, this reference fill solution from Oakton weighs 16 ounces and is perfect for laboratory settings where precision is paramount. Users appreciate the reliable performance of this solution in various applications, ensuring accurate measurement and functionality. The product's design facilitates easy use and minimizes waste, making it a preferred choice among professionals. Additionally, its liquid form assures even distribution for enhanced performance.

Customer Reviews & Ratings

4.0

1 customers ratings

5 Star

0%
4 Star

100%
3 Star

0%
2 Star

0%
1 Star

0%

Review this product

Share your thoughts with other customers

Pros

Convenient bottle packaging for easy use
Effective in laboratory settings
Reliable performance for accurate measurement
Minimizes waste during application
Suitable for various applications

Cons

Some users might prefer a larger size option

Platform Trust & Buyer Confidence

4.2/5 9704 reviews

Read reviews

Jasmin

Verified buyer

“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot

Anke

Verified buyer

“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot

Hazel

Verified buyer

“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot

Opaleye

Verified buyer

“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot

Adele

Verified buyer

“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot

WHY SHOP WITH US

Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

LSL 890

Order now and get it around Saturday, December 19

QTY:

Secured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners

Fastest cross-border delivery

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns ^*, and secure packaging on every order.

OAKTON EW-27503-75 Model KNO3 Reference Fill Solution, 1m Size

LSL 890

Fast Shipping

Free Return*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

What Stands Out

Product Details

Who Should Buy?

Product Description

Customer Questions & Answers

Oakton Electrolyte Solutions EW-27503-75 Editorial Review

Customer Reviews & Ratings

Review this product

Pros

Cons

Platform Trust & Buyer Confidence

WHY SHOP WITH US

Product Price History

Important information

LSL 890

Ubuy Assurance

Fast
Shipping

Free
Return^*