Buffer Standard Solution | 250ml | pH 4.0 at 20°C | Traceable to NIST

Buffer Standard Solution | 250ml | pH 4.0 at 20°C | Traceable to NIST

Marsoni

M251S

$10.72

Get it in 3 business days with 1 day shipping. Friday, May 29

Buffer Standard Solution | 250ml | pH 4.0 at 20°C | Traceable to NISTBuffer standard solution with a precise pH of 4. 0 at 20C, ideal for calibrating pH meters and sensors. Traceable to NIST standards ensures accurate and reliable calibration for scientific and industrial applications. Liquid form for easy handling and accurate measurement, suitable for laboratory or field use. Stable and consistent formulation designed to maintain pH accuracy under varying conditions. Ideal for educational, laboratory, and industrial

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This room divider is exactly what I need. It is very durable and easy to move around. You can’t see through the fabric. I love it. My reason for purchasing this divider is to use as a divider and as a backdrop holder. And it serves both purposes perfectly. It looks much better in person than on camera. It did have the spots on one side on all of them but in a few days they went away. It foldaway and tucked away easily.

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Reviewed in the United States on December 14, 2025

Verified Purchase

Brittany

Boise, US

★★★★★ 4

Great product

Color: Black, Size: 4 Panel-88''

Love the look of this after it’s put together. It’s pretty sturdy and the connecting clips allow you to shape it different if you need it to fit in a corner. We use this at work so it’s great for the space we use it in. A little hard to store because it doesn’t fold up nicely because of the feet on it but I’m happy with it overall.

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Reviewed in the United States on April 19, 2026

Verified Purchase

Lori Z.

Louisville, US

★★★★★ 3

Does its job

Color: Black, Size: 4 Panel-88''

For the price the quality is decent. The only thing I do not love is the panels are attached to each other with 3 plastic clips. Only 1 side of the panel is actually attached to wheels. The other side kind of sits on the bar and is held in place with those clips.

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Reviewed in the United States on May 12, 2026

Verified Purchase

Linda Kocemba

Lowell, US

★★★★★ 5

Worth purchasing

Color: Black, Size: 4 Panel-88''

This is perfect definitely worth the money. It’s very easy to put together. It’s terrible material. The quality and appearance is great. It gives that privacy that you need It’s definitely worth the purchase.

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Reviewed in the United States on March 30, 2026