--- product_id: 31398438 title: "pH Calibration Buffer 3-Pack, 500 mL (1.06 Pint) Each: pH 4.00, pH 7.00, and pH 10.00; NIST Traceable Reference Standards for All pH Meters" brand: "biopharm" price: "HK$500" currency: HKD in_stock: true category: "Biopharm" url: https://www.desertcart.hk/products/31398438-ph-calibration-buffer-3-pack-500-ml-1-06-pint store_origin: HK region: Hong Kong --- # Color-coded for instant ID NIST-traceable precision 500 mL lab-grade bottles pH Calibration Buffer 3-Pack, 500 mL (1.06 Pint) Each: pH 4.00, pH 7.00, and pH 10.00; NIST Traceable Reference Standards for All pH Meters **Brand:** biopharm **Price:** HK$500 **Availability:** โœ… In Stock ## Summary > ๐Ÿงช Calibrate with Confidence โ€” Because Precision is Non-Negotiable ## Quick Answers - **What is this?** pH Calibration Buffer 3-Pack, 500 mL (1.06 Pint) Each: pH 4.00, pH 7.00, and pH 10.00; NIST Traceable Reference Standards for All pH Meters by biopharm - **How much does it cost?** HK$500 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/31398438-ph-calibration-buffer-3-pack-500-ml-1-06-pint) ## 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 - โ€ข **Long Shelf Life:** Over one year of guaranteed stability upon receipt means fewer reorders and uninterrupted precision calibration. - โ€ข **Ready for Any Lab:** Generous 500 mL bottles, individually bagged to maintain purity and convenience for pharmaceutical, academic, and industrial use. - โ€ข **Certified & Traceable:** Each lot is uniquely numbered with expiration dates and includes a certificate of analysis for full compliance and confidence. - โ€ข **Instant Identification:** Vibrant color-coded bottles (pH 4.00, 7.00, 10.00) eliminate guesswork and speed up your workflow. - โ€ข **Precision You Can Trust:** NIST-traceable calibration ensures your pH meters deliver lab-grade accuracy every time. ## Overview This 3-pack of 500 mL pH calibration buffers (pH 4.00, 7.00, and 10.00) offers NIST-traceable, color-coded solutions designed for precise calibration of all pH meters. Manufactured under strict lab protocols, each lot is uniquely numbered, expiration dated, and comes with a certificate of analysis, making it ideal for pharmaceutical, academic, research, and industrial laboratories seeking reliable, long-lasting calibration standards. ## 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 - 500 mL (1.06 Pint) Poly Bottles, Individually Bagged - For Pharmaceutical, Academic, Research and Industrial Labs ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01E7U873K | | Best Sellers Rank | #12,176 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Chemical Buffers | | Brand Name | Biopharm | | Container Type | Bottle | | Customer Reviews | 4.8 4.8 out of 5 stars (150) | | Item Form | Liquid | | Manufacturer | Biopharm Inc | | Part Number | BB8886X | | UPC | 721272377101 | | Volume | 500 Milliliters | ## Product Details - **Brand:** Biopharm - **Item Form:** Liquid - **Item Volume:** 500 Milliliters - **Manufacturer:** Biopharm Inc - **Package Information:** Bottle ## Images ![pH Calibration Buffer 3-Pack, 500 mL (1.06 Pint) Each: pH 4.00, pH 7.00, and pH 10.00; NIST Traceable Reference Standards for All pH Meters - Image 1](https://m.media-amazon.com/images/I/81Jy21HfQOL.jpg) ## Available Options This product comes in different **Material Type** options. ## Questions & Answers **Q: What is the self life?** A: pH 4.00 and pH 7.00 receives a 2 year expiration from the date of manufacture. pH 10.00 receives a 1.5 year expiration from the date of manufacture. **Q: Does the certificate have any additional costs?** A: No. The certification(s) are included with the shipment at no additional cost. **Q: Where can i find the buffer ph vs. temperature table that commonly comes with ph calibration buffers? not just the two values on the front.** A: It can be found on the this product page under the 'Downloads' option. Here's the link. https://images-na.ssl-images-amazon.com/images/I/81i3MCq4otL.pdf **Q: how much is needed to calibrate a pen? How long does this usually last calibrating 1/week/min?** A: Depends on the pen size. the myron L pen with cup for the it'll be about 3oz for a triple rinse and calibrate. So 5 weeks since it's about 16.9oz. but other pens require more. ## Frequently Bought Together - pH Buffer Calibration Solution Kit 3-Pack: pH 4.00, pH 7.00, pH 10.00 Buffers โ€” 500 mL (1.06 Pint) Each โ€” Color Coded โ€” NIST Traceable for All pH Meters - pH/Oxygen Reduction Potential (ORP) Electrode Storage Solution, 250 mL (8.4 fl oz) โ€” Suitable for All pH Meters โ€” 1M KCl Solution โ€” Keeps Your Probe Conditioned and Helps to Extend its Life - Hanna Instruments HI7061L General Purpose Electrode Cleaning Solution, 500mL Bottle --- ## Why Shop on Desertcart? - ๐Ÿ›’ **Trusted by 1.3+ Million Shoppers** โ€” Serving international shoppers since 2016 - ๐ŸŒ **Shop Globally** โ€” Access 737+ million products across 21 categories - ๐Ÿ’ฐ **No Hidden Fees** โ€” All customs, duties, and taxes included in the price - ๐Ÿ”„ **15-Day Free Returns** โ€” Hassle-free returns (30 days for PRO members) - ๐Ÿ”’ **Secure Payments** โ€” Trusted payment options with buyer protection - โญ **TrustPilot Rated 4.5/5** โ€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/31398438-ph-calibration-buffer-3-pack-500-ml-1-06-pint](https://www.desertcart.hk/products/31398438-ph-calibration-buffer-3-pack-500-ml-1-06-pint) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-06-20*