---
product_id: 82405309
title: "pH Buffer Calibration Solution, pH 4.00 — 1 Gallon — NIST Traceable Reference Standards for All pH Meters — Color Coded Red"
price: "714 zł"
currency: PLN
in_stock: true
reviews_count: 2
url: https://www.desertcart.pl/products/82405309-ph-buffer-calibration-solution-ph-4-00-1-gallon-nist
store_origin: PL
region: Poland
---

# NIST-traceable precision Color-coded red for instant ID Lot numbered & expiration dated pH Buffer Calibration Solution, pH 4.00 — 1 Gallon — NIST Traceable Reference Standards for All pH Meters — Color Coded Red

**Price:** 714 zł
**Availability:** ✅ In Stock

## Summary

> 🧪 Calibrate with Confidence — Because Precision Can’t Wait

## Quick Answers

- **What is this?** pH Buffer Calibration Solution, pH 4.00 — 1 Gallon — NIST Traceable Reference Standards for All pH Meters — Color Coded Red
- **How much does it cost?** 714 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/82405309-ph-buffer-calibration-solution-ph-4-00-1-gallon-nist)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Instant Visual Cue:** Bold red color coding eliminates guesswork
- • **Lab-Grade Accuracy:** Calibrated against NIST SRM for unmatched precision
- • **Ready When You Are:** Individually bagged 1-gallon bottle ensures contamination-free use
- • **Versatile Application:** Trusted by pharmaceutical, academic, research, and industrial labs
- • **Traceability Guaranteed:** Unique lot number and expiration date for quality assurance

## Overview

This 1-gallon pH 4.00 buffer calibration solution is NIST-traceable and color-coded red for quick identification. Each batch is lot numbered and expiration dated, ensuring reliable, lab-grade accuracy for all pH meters. Ideal for pharmaceutical, academic, research, and industrial applications, it comes individually bagged to maintain purity and includes a certificate of analysis for full traceability.

## Description

This buffer calibration solution is suitable for the calibration of all pH meters. Each production lot is manufactured in our own laboratory following carefully controlled, written procedures and standardized against NIST standard reference materials (SRM) for high accuracy. The finished product is assigned a unique Lot number and expiration date. These products will have greater than one year shelf life when received. Certificate of analysis and traceability included.

Review: Out of buffer. - I was out of 4.00 pH buffer. Pretty generic stuff. Regular supply was out of it. On time Delivery was important. It came when they said it would. Happy
Review: Not cherry juice! - 4 buffer! A big jug of it! It's red and everything!

## Features

- NIST Reference Calibrated
- Color-Coded for Easy Reference
- Lot Numbered and Expiration Dated
- Individual Bagged 1 Gallon Bottle
- For Pharmaceutical, Academic, Research and Industrial Labs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.6 out of 5 stars 8 Reviews |

## Images

![pH Buffer Calibration Solution, pH 4.00 — 1 Gallon — NIST Traceable Reference Standards for All pH Meters — Color Coded Red - Image 1](https://m.media-amazon.com/images/I/71Okfvbxl6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Out of buffer.
*by E***6 on March 6, 2023*

I was out of 4.00 pH buffer. Pretty generic stuff. Regular supply was out of it. On time Delivery was important. It came when they said it would. Happy

### ⭐⭐⭐⭐⭐ Not cherry juice!
*by G***L on March 26, 2019*

4 buffer! A big jug of it! It's red and everything!

## Frequently Bought Together

- pH Buffer Calibration Solution, pH 4.00 — 1 Gallon — NIST Traceable Reference Standards for All pH Meters — Color Coded Red
- pH Buffer Calibration Solution, pH 10.00 — 1 Gallon — NIST Traceable Reference Standards for All pH Meters — Color Coded Blue
- pH Buffer Calibration Solution, pH 7.00 — 1 Gallon — NIST Traceable Reference Standards for All pH Meters — Color Coded Yellow

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**Shop now:** [https://www.desertcart.pl/products/82405309-ph-buffer-calibration-solution-ph-4-00-1-gallon-nist](https://www.desertcart.pl/products/82405309-ph-buffer-calibration-solution-ph-4-00-1-gallon-nist)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-03-15*