---
product_id: 725752811
title: "AI1108 pH Calibration Buffer Solution Kit for pH/ORP Electrodes, 4.00 & 7.00 pH, 4 oz & 8 oz"
brand: "apera instruments"
price: "S$89"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/725752811-ai1108-ph-calibration-buffer-solution-kit-for-ph-orp-electrodes
store_origin: SG
region: Singapore
---

# ±0.01 pH accuracy 2-year sealed shelf life NIST-traceable calibration AI1108 pH Calibration Buffer Solution Kit for pH/ORP Electrodes, 4.00 & 7.00 pH, 4 oz & 8 oz

**Brand:** apera instruments
**Price:** S$89
**Availability:** ✅ In Stock

## Summary

> 🧪 Calibrate like a pro — precision that keeps you ahead of the curve!

## Quick Answers

- **What is this?** AI1108 pH Calibration Buffer Solution Kit for pH/ORP Electrodes, 4.00 & 7.00 pH, 4 oz & 8 oz by apera instruments
- **How much does it cost?** S$89 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/725752811-ai1108-ph-calibration-buffer-solution-kit-for-ph-orp-electrodes)

## Best For

- apera instruments enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Freshness:** Double-sealed packaging ensures a 2-year shelf life, keeping your solutions pristine.
- • **Precision You Can Trust:** Achieve lab-grade ±0.01 pH accuracy for flawless measurements every time.
- • **Complete Calibration Kit:** Includes both 4.00 and 7.00 pH buffers in convenient 4 oz & 8 oz bottles for versatile use.
- • **Certified Quality Assurance:** Manufactured in an ISO 9001:2015 facility with NIST-traceable standards for unmatched reliability.
- • **Quick-Identify Color Coding:** Save time with intuitive color-coded bottles for hassle-free calibration.

## Overview

The Apera Instruments AI1108 pH Calibration Buffer Solution Kit offers ultra-precise ±0.01 pH accuracy with NIST-traceable standards, produced in an ISO 9001:2015 certified facility. Featuring color-coded, double-sealed bottles with a 2-year shelf life, this kit includes 4.00 and 7.00 pH buffers in 4 oz and 8 oz sizes, ideal for professional-grade pH and ORP electrode calibration.

## Description

Apera Instruments AI1108 pH Calibration Buffer Solution Kit (pH 4.00 & 7.00, 8oz. each), plus 4oz. 3M KCL Soaking Storage Solution for pH/ORP Electrodes. Apera pH calibration buffers are produced in an ISO 9001:2015 facility with ISO 17025:2017 accreditation using high-purity reagents, deionized water and certified analytical balances in a temperature controlled environment. Reported values are accurate to +/- 0.01 pH at 25°C and are traceable to NIST Standard Reference Materials (SRMs). MSDS documents are downloadable. Certificate of analysis can be achieved by request. All pH buffers have a 2-year expiration from manufacture for an unopened bottle.

## Features

- Reported values are accurate to +/- 0.01 pH at 25 °C and are traceable to NIST Standard Reference Materials (SRMs).
- Produced in an ISO 9001:2015 certified facility using high-purity reagents, deionized water and certified analytical balances in a temperature controlled environment.
- color-coded for quick identification.
- Double-sealed. 2-year expiration from manufacture for an unopened bottle.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Apera Instruments |
| Part number | AI1108 |
| Item Weight | 255 g |
| Product Dimensions | 5.08 x 5.08 x 20.32 cm; 255.15 g |
| Item model number | AI1108 |
| Style | pH 7/4/10 (8 oz) + KCL |
| Material | HDPE |
| Pattern | Lab Supply |
| Item thickness | 1 Inches |
| Item Package Quantity | 1 |
| Measurement System | US |
| Included components | AI1108 pH calibration buffer kit |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![AI1108 pH Calibration Buffer Solution Kit for pH/ORP Electrodes, 4.00 & 7.00 pH, 4 oz & 8 oz - Image 1](https://m.media-amazon.com/images/I/61yq0Hm+aKL.jpg)

## Questions & Answers

**Q: What is the life span of the solution .  Does it have an expiration date?**
A: The lifespan of unopened pH buffer solutions (new batches) is two years, one year for the older batches. All of our solutions have expiration dates on the bottles.

**Q: Do the buffers and storage solutions have a mold inhibitor?**
A: no, I don't think it's have mold inhibitors

**Q: Does this come with storage solution?**
A: Yes a 4oz bottle of kci storage solution. It's in the pic and description.

**Q: Do the buffers and storage solutions have a mold inhibitor?**
A: I don't think so.

## Frequently Bought Together

- Apera Instruments AI1108 pH Calibration Buffer Solution Kit for pH/ORP Electrodes, 4.00 & 7.00 pH, 4 oz & 8 oz
- Apera Instruments 3M KCL Storage Soaking Solution (8 oz.) for pH and ORP Electrodes
- Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy, Lcd display

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-20*