--- product_id: 35425712 title: "pH Buffer Calibration Solution Kit 3-Pack: pH 4.00, pH 7.00, pH 10.00 Buffers — 250 ml (8.4 fl oz) Each — Color Coded — NIST Traceable for All pH Meters" brand: "biopharm" price: "€ 70.23" currency: EUR in_stock: true reviews_count: 8 category: "Biopharm" url: https://www.desertcart.at/products/35425712-ph-buffer-calibration-solution-kit-3-pack-ph-4-00 store_origin: AT region: Austria --- # Color-coded for instant ID NIST-traceable precision 1+ year shelf life pH Buffer Calibration Solution Kit 3-Pack: pH 4.00, pH 7.00, pH 10.00 Buffers — 250 ml (8.4 fl oz) Each — Color Coded — NIST Traceable for All pH Meters **Brand:** biopharm **Price:** € 70.23 **Availability:** ✅ In Stock ## Summary > 🔬 Calibrate like a pro — precision you can trust, clarity you can see! ## Quick Answers - **What is this?** pH Buffer Calibration Solution Kit 3-Pack: pH 4.00, pH 7.00, pH 10.00 Buffers — 250 ml (8.4 fl oz) Each — Color Coded — NIST Traceable for All pH Meters by biopharm - **How much does it cost?** € 70.23 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/35425712-ph-buffer-calibration-solution-kit-3-pack-ph-4-00) ## 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 - • **Lab-Grade Accuracy:** Calibrated against NIST SRM for unmatched precision in every drop. - • **Certified Confidence:** Each kit includes lot numbers, expiration dates, and traceability certificates. - • **Versatile Application:** Perfect for pharmaceutical, academic, research, and industrial labs alike. - • **Long-Lasting Freshness:** Over one year shelf life ensures your buffers stay reliable and ready. - • **Effortless Identification:** Vibrant color-coded bottles eliminate guesswork during calibration. ## Overview This 3-pack pH Buffer Calibration Solution Kit offers 250 ml bottles of pH 4.00, 7.00, and 10.00 buffers, each rigorously standardized against NIST reference materials. Color-coded for quick identification and individually lot-numbered with expiration dates, these solutions provide over one year of shelf life, making them ideal for precise calibration of all pH meters in professional lab environments. ## Description These buffer calibration solutions are 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: My New Go-To pH Buffers - Great value and a nice size that won't expire before I use it all. Solutions were accurate and came with certificates. pH 10 buffer read 0.02 higher than indicated on paperwork, but the 10 buffer is the hardest to keep stable and needs to stay fresh, so that's not bad. Other pH 10 buffers I have received have been off by as much as 0.45. These will be my go-to pH buffers if the price remains this reasonable. Review: Good stuff! - They came in and are doing great, we are glad that the expiration dates are far out, We don't use a lot of this, so our standards usually expire before the bottles are empty. ## Features - NIST Reference Calibrated - Color Coded for Easy Identification - Lot Numbered and Expiration Dated - Individually Bagged 250 ml (8.4 fl oz) Poly Bottles - For Pharmaceutical, Academic, Research and Industrial Labs ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01LVVAKEM | | Best Sellers Rank | #55,577 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #25 in Chemical Buffers | | Brand Name | Biopharm | | Container Type | Bottle | | Customer Reviews | 4.6 4.6 out of 5 stars (343) | | Item Form | Liquid | | Manufacturer | Biopharm Inc | | Molecular Weight | 319.85 | | Part Number | BB8891X | | UPC | 721272377163 | | Volume | 250 Milliliters | ## Product Details - **Brand:** Biopharm - **Item Form:** Liquid - **Item Volume:** 250 Milliliters - **Molecular weight:** 319.85 - **Package Information:** Bottle ## Images ![pH Buffer Calibration Solution Kit 3-Pack: pH 4.00, pH 7.00, pH 10.00 Buffers — 250 ml (8.4 fl oz) Each — Color Coded — NIST Traceable for All pH Meters - Image 1](https://m.media-amazon.com/images/I/81c0VLHqafL.jpg) ## Questions & Answers **Q: Please advise the expiration date for biopharm buffer calibration solution kit 3-pack of 250 ml (8oz) each ph 4, 7 and 10 calibration standards color** A: The buffer pH 4 and 7 have a shelf life of 2 years when unopened. The buffer pH 10 has a shelf life of 18 months when unopened. These expiration dates are assigned before they head to the amazon warehouse so you will have slightly less than that. **Q: What would be the shelf life after the biopham calibration solution is opened?** A: I think each bottle lists it’s expiration date on it, which we treat as it’s expiration date whether it is opened or not. How long that is depends on how long it was between manufacture and shipping. I think most of the time this probably has about a year shelf life once you get it, but that would be variable. ## Customer Reviews ### ⭐⭐⭐⭐⭐ My New Go-To pH Buffers *by K***I on March 18, 2017* Great value and a nice size that won't expire before I use it all. Solutions were accurate and came with certificates. pH 10 buffer read 0.02 higher than indicated on paperwork, but the 10 buffer is the hardest to keep stable and needs to stay fresh, so that's not bad. Other pH 10 buffers I have received have been off by as much as 0.45. These will be my go-to pH buffers if the price remains this reasonable. ### ⭐⭐⭐⭐⭐ Good stuff! *by I***N on February 1, 2026* They came in and are doing great, we are glad that the expiration dates are far out, We don't use a lot of this, so our standards usually expire before the bottles are empty. ### ⭐⭐⭐⭐⭐ Todo según lo pactado *by C***Z on January 5, 2026* Excelente ## Frequently Bought Together - pH Buffer Calibration Solution Kit 3-Pack: pH 4.00, pH 7.00, pH 10.00 Buffers — 250 ml (8.4 fl oz) Each — Color Coded — NIST Traceable for All pH Meters - pH/Oxygen Reduction Potential (ORP) Electrode Storage Solution, 250 mL (8.4 fl oz) — Suitable for All pH Meters — 1M KCl Solution — Keeps Your Probe Conditioned and Helps to Extend its Life --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/35425712-ph-buffer-calibration-solution-kit-3-pack-ph-4-00](https://www.desertcart.at/products/35425712-ph-buffer-calibration-solution-kit-3-pack-ph-4-00) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-04-25*