---
product_id: 352324653
title: "Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each"
brand: "apera instruments"
price: "€ 39.11"
currency: EUR
in_stock: true
reviews_count: 5
category: "Apera Instruments"
url: https://www.desertcart.ie/products/352324653-apera-instruments-ai1113-ph-calibration-buffer-solution-kit-7-00
store_origin: IE
region: Ireland
---

# ±0.01 pH accuracy ISO 9001:2015 & ISO 17025:2017 certified Color-coded for quick ID Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each

**Brand:** apera instruments
**Price:** € 39.11
**Availability:** ✅ In Stock

## Summary

> 🎯 Calibrate with confidence — precision that keeps you ahead of the curve!

## Quick Answers

- **What is this?** Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each by apera instruments
- **How much does it cost?** € 39.11 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/352324653-apera-instruments-ai1113-ph-calibration-buffer-solution-kit-7-00)

## 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 Shelf Life:** Double-sealed bottles with a 2-year unopened expiration keep your calibration ready when you are.
- • **Precision You Can Trust:** Accurate to ±0.01 pH at 25°C, ensuring lab-grade calibration every time.
- • **Effortless Identification:** Distinct color-coded solutions prevent mix-ups and speed up your workflow.
- • **Certified Quality Assurance:** Manufactured in ISO-certified facilities with traceability to NIST standards for unmatched reliability.
- • **Professional Grade Convenience:** 8 oz bottles sized perfectly for frequent use without waste, ideal for busy labs and fieldwork.

## Overview

The Apera Instruments AI1113 pH Calibration Buffer Solution Kit offers ultra-precise pH calibration with ±0.01 accuracy at 25°C, produced under strict ISO 9001:2015 and ISO 17025:2017 standards. Featuring color-coded, double-sealed 8 oz bottles with a 2-year shelf life, this kit ensures reliable, easy-to-identify calibration solutions traceable to NIST standards—perfect for professionals demanding accuracy and efficiency.

## Description

Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each. 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.

Review: Seems to work well
Review: These are the go-to reference solutions for testing the acid levels in wine. This brand has a 2-year expiration date. The coloration of these references makes it easy to not mix them up.

## 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 |
|---------------|-------|
| ASIN | B074SQBC4K |
| ASIN  | B074SQBC4K |
| Batteries Included? | No |
| Batteries Required? | No |
| Customer Reviews | 4.6 4.6 out of 5 stars (679) |
| Customer reviews | 4.6 4.6 out of 5 stars (679) |
| Cutting Diameter | 2 Inches |
| Date First Available | 26 December 2017 |
| Date First Available  | 26 December 2017 |
| Included components | AI1113 Solution Kit |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 226 g |
| Item diameter | 2 Inches |
| Item model number | AI1113 |
| Item model number  | AI1113 |
| Manufacturer | Apera Instruments |
| Manufacturer  | Apera Instruments |
| Material | HDPE (High Density Polyethylene) |
| Measurement System | US |
| Part number | AI1113 |
| Product Dimensions  | 5.08 x 20.32 x 5.08 cm; 226.8 g |
| Shape | Round |
| Style | pH 4, 7 (8oz.) |

## Images

![Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each - Image 1](https://m.media-amazon.com/images/I/71v2sp4uP8L.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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***B on 19 January 2026*

Seems to work well

### ⭐⭐⭐⭐⭐ Review
*by T***P on 10 October 2025*

These are the go-to reference solutions for testing the acid levels in wine. This brand has a 2-year expiration date. The coloration of these references makes it easy to not mix them up.

### ⭐⭐⭐⭐ Review
*by T***N on 24 November 2024*

My only gripe is that it smells very strongly of wintergreen. Your instrument will smell of wintergreen even after you rinse it, meaning something is left coating your sensitive and highly expensive ph meter. This doesn't seem to impact performance however. And other reference materials are not as fairly priced, so its a good buy. My bottles arrived leak-free and were packaged well. I would reccomend this product as long as you can stand the minty-fresh smell that hangs around on your instrument for several days. Atleast it smells fresh i guess!

## Frequently Bought Together

- Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each
- Apera Instruments 3M KCL Storage Soaking Solution (8 oz.) for pH and ORP Electrodes

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-23*