--- product_id: 35425712 title: "Biopharm pH 4.00, 7.00 & 10.00 Calibration Buffer 3-Pack, 250mL (8.4 oz) Ea | NIST Traceable. Made in USA. COAs available. Values at 25C. Reference Standard Solutions Compatible with All pH Meters" brand: "biopharm" price: "280.53 DT" currency: TND in_stock: true category: "Biopharm" url: https://www.desertcart.tn/products/35425712-biopharm-ph-4-00-7-00-and-10-00-calibration store_origin: TN region: Tunisia --- # NIST-traceable precision Lot numbered & expiration dated 3-pack multi-range calibration Biopharm pH 4.00, 7.00 & 10.00 Calibration Buffer 3-Pack, 250mL (8.4 oz) Ea | NIST Traceable. Made in USA. COAs available. Values at 25C. Reference Standard Solutions Compatible with All pH Meters **Brand:** biopharm **Price:** 280.53 DT **Availability:** ✅ In Stock ## Summary > 🔬 Calibrate with Confidence, Lead with Precision ## Quick Answers - **What is this?** Biopharm pH 4.00, 7.00 & 10.00 Calibration Buffer 3-Pack, 250mL (8.4 oz) Ea | NIST Traceable. Made in USA. COAs available. Values at 25C. Reference Standard Solutions Compatible with All pH Meters by biopharm - **How much does it cost?** 280.53 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/35425712-biopharm-ph-4-00-7-00-and-10-00-calibration) ## 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 reliable usability upon receipt—stock up without worry. - • **Ready for Any Lab:** Individually bagged 250mL bottles designed for pharmaceutical, academic, research, and industrial use. - • **Traceability Included:** Each lot comes with a Certificate of Analysis and unique lot number for full quality assurance. - • **Color-Coded Convenience:** Quickly identify pH 4.00, 7.00, and 10.00 buffers with intuitive color coding—no mix-ups, no delays. - • **Precision You Can Trust:** NIST standard reference materials ensure lab-grade accuracy for every calibration. ## Overview Biopharm’s pH 4.00, 7.00 & 10.00 Calibration Buffer 3-Pack offers NIST-traceable, color-coded solutions in convenient 250mL bottles. Manufactured under strict quality controls in the USA, each lot is uniquely numbered and expiration dated, complete with Certificates of Analysis. Ideal for pharmaceutical, academic, research, and industrial labs, this set guarantees accurate, reliable pH meter calibration with a shelf life exceeding one year. ## 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. ## 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 | #41,739 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #19 in Chemical Buffers | | Brand Name | Biopharm | | Container Type | Bottle | | Customer Reviews | 4.6 4.6 out of 5 stars (346) | | Item Form | Solution | | Manufacturer | Biopharm Inc | | Molecular Weight | 319.85 | | Part Number | BB8891X | | UPC | 721272377163 | | Volume | 250 ml | ## Product Details - **Brand:** Biopharm - **Item Form:** Solution - **Item Volume:** 250 ml - **Molecular weight:** 319.85 - **Package Information:** Bottle ## Images ![Biopharm pH 4.00, 7.00 & 10.00 Calibration Buffer 3-Pack, 250mL (8.4 oz) Ea | NIST Traceable. Made in USA. COAs available. Values at 25C. Reference Standard Solutions Compatible with 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. ## 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.tn/products/35425712-biopharm-ph-4-00-7-00-and-10-00-calibration](https://www.desertcart.tn/products/35425712-biopharm-ph-4-00-7-00-and-10-00-calibration) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-30*