---
product_id: 37192543
title: "pH Buffer Calibration Solution Kit 2-Pack — one pH 4.00 (red) and one pH 7.00 (Yellow), Each 500 mL (1.06 Pint) — NIST Traceable Reference Standards for All pH Meters"
brand: "biopharm"
price: "S$63"
currency: SGD
in_stock: true
reviews_count: 9
category: "Biopharm"
url: https://www.desertcart.sg/products/37192543-ph-buffer-calibration-solution-kit-2-pack-one-ph-4
store_origin: SG
region: Singapore
---

# Color-coded for instant ID Lot-numbered & expiration dated NIST-traceable precision pH Buffer Calibration Solution Kit 2-Pack — one pH 4.00 (red) and one pH 7.00 (Yellow), Each 500 mL (1.06 Pint) — NIST Traceable Reference Standards for All pH Meters

**Brand:** biopharm
**Price:** S$63
**Availability:** ✅ In Stock

## Summary

> 🧪 Calibrate like a pro — precision you can see and trust!

## Quick Answers

- **What is this?** pH Buffer Calibration Solution Kit 2-Pack — one pH 4.00 (red) and one pH 7.00 (Yellow), Each 500 mL (1.06 Pint) — NIST Traceable Reference Standards for All pH Meters by biopharm
- **How much does it cost?** S$63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/37192543-ph-buffer-calibration-solution-kit-2-pack-one-ph-4)

## Best For

- biopharm enthusiasts

## Why This Product

- Trusted biopharm brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long Shelf Life:** Over one year of guaranteed stability from receipt, perfect for ongoing lab or industrial use.
- • **Lab-Grade Accuracy:** Calibrate with confidence using NIST-traceable standards trusted by professionals.
- • **Versatile Application:** Ideal for pharmaceutical, academic, research, and industrial pH meter calibration needs.
- • **Certified Quality Assurance:** Each bottle comes with a free Certificate of Analysis ensuring traceability and compliance.
- • **Instant Visual Identification:** Red for pH 4.00 and Yellow for pH 7.00—no guesswork, just quick, reliable calibration.

## Overview

This 2-pack pH Buffer Calibration Solution Kit includes 500 mL bottles of pH 4.00 (red) and pH 7.00 (yellow) solutions, each individually lot-numbered and expiration-dated for traceability. Manufactured under strict lab conditions and standardized against NIST reference materials, these solutions ensure accurate calibration for all pH meters across pharmaceutical, academic, research, and industrial applications.

## Description

Want that feeling of confidence from doing things right? Get our accurate, unbiased, independent and scientifically documented calibration standards and be sure your meter is working correctly. These buffer calibration solutions are suitable for the calibration of all pH meters. Each production lot is manufactured in our 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.

Review: Std pH solutions as advertised - Price was right. Works to balance my spa for correct pH range
Review: Great product - I would recommend this product

## Features

- Color Coded for Easy Identification
- Individually Bagged 500 ml (16.9 fl oz) Poly Bottles
- Lot Numbered and Expiration Dated
- Free Certificate of Analysis and Traceability
- For Pharmaceutical, Academic, Research and Industrial Uses

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01LVU1UD1 |
| Best Sellers Rank | #18,170 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Chemical Buffers |
| Date First Available | September 9, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 2.75 pounds |
| Manufacturer | Biopharm Inc |
| Package Dimensions | 9.69 x 6.69 x 3.5 inches |
| UPC | 721272377170 |

## Product Details

- **Brand:** Biopharm
- **Item Volume:** 500 Milliliters
- **Item Weight:** 1.25 Kilograms
- **Molecular weight:** 92.09
- **Package Information:** Bottle

## Images

![pH Buffer Calibration Solution Kit 2-Pack — one pH 4.00 (red) and one pH 7.00 (Yellow), Each 500 mL (1.06 Pint) — NIST Traceable Reference Standards for All pH Meters - Image 1](https://m.media-amazon.com/images/I/81TMufkixnL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Std pH solutions as advertised
*by G***Y on April 24, 2024*

Price was right. Works to balance my spa for correct pH range

### ⭐⭐⭐⭐⭐ Great product
*by G***8 on March 14, 2024*

I would recommend this product

### ⭐⭐⭐⭐⭐ Very Accurate calibration solution!
*by A***R on September 21, 2022*

Will be a future customer for sure!! This solution is very Accurate, have compared it to other solutions and there is no comparison if you are looking for accurate solution to calibrate your Ph meter.. FYI..if you are using a Bluelab PH pen made in the last year or 2...Throw it away and do not trust it!! Lots and lots of people complaining about inaccurate readings and the pH Pens going bad and will not calibrate...Then bluelab not standing behind their products or their warranty!!

## Frequently Bought Together

- pH Buffer Calibration Solution Kit 2-Pack — one pH 4.00 (red) and one pH 7.00 (Yellow), Each 500 mL (1.06 Pint) — NIST Traceable Reference Standards for All pH Meters
- Apera Instruments 3M KCL Storage Soaking Solution (8 oz.) for pH and ORP Electrodes
- APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-24*