--- product_id: 105936972 title: "Continuum Reagents Refractometer Calibration Standard – Seawater Reference for Calibration of Density Measuring Equipment, 60 ml" brand: "continuum aquatics" price: "64 zł" currency: PLN in_stock: true reviews_count: 13 category: "Continuum Aquatics" url: https://www.desertcart.pl/products/105936972-continuum-reagents-refractometer-calibration-standard-seawater-reference-for-calibration-density store_origin: PL region: Poland --- # 35 ppt Salinity 1.3394 Refractive Index 1.0264 Specific Gravity Continuum Reagents Refractometer Calibration Standard – Seawater Reference for Calibration of Density Measuring Equipment, 60 ml **Brand:** continuum aquatics **Price:** 64 zł **Availability:** ✅ In Stock ## Summary > 🌟 Calibrate with Confidence — Because Accuracy is Non-Negotiable! ## Quick Answers - **What is this?** Continuum Reagents Refractometer Calibration Standard – Seawater Reference for Calibration of Density Measuring Equipment, 60 ml by continuum aquatics - **How much does it cost?** 64 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/105936972-continuum-reagents-refractometer-calibration-standard-seawater-reference-for-calibration-density) ## Best For - continuum aquatics enthusiasts ## Why This Product - Trusted continuum aquatics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Portable:** 60 ml bottle fits effortlessly into any lab or field kit for on-the-go precision. - • **Easy-to-Use Protocol:** Simple 5-step calibration process saves time and eliminates guesswork. - • **Universal Compatibility:** Perfectly suited for all density measuring equipment across all life stages. - • **Consistent Salinity Standard:** Reliable 35 ppt salinity mimics natural seawater for flawless calibration. - • **Precision-Calibrated for Accuracy:** Ensure your seawater refractometers and hydrometers deliver spot-on readings every time. ## Overview The Continuum Reagents Refractometer Calibration Standard is a 60 ml seawater reference solution designed to provide precise calibration for refractometers, hydrometers, and other density measuring instruments. Featuring 35 ppt salinity, 1.0264 specific gravity, and a refractive index of 1.3394, it ensures consistent, reliable measurements across all life stages and equipment types. ## Description Continuum Reagents Refractometer Calibration Standard is designed to provide an accurate reference for the calibration of seawater refractometers, hydrometers and other density measuring equipment. Review: Great product - Really good product come fast and accurate my reflectometer was in 1.024 but thank to this product i fix it again (1.026) really easy to use Review: Works well - Good solution for testing my tanks ## Features - Designed to provide an accurate reference for the calibration of seawater refractometers, hydrometers and other density measuring equipment - 35 ppt Salinity - 1.0264 Specific Gravity - 1.3394 Refractive Index - 53 uS/cm at 25 deg c - Age range description: All Life Stages ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B077TQWN5X | | ASIN | B077TQWN5X | | Age Range Description | All Life Stages | | Best Sellers Rank | #10,091 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #67 in Substance Analysis Instrumentation | | Brand Name | Continuum Aquatics | | Customer Reviews | 4.3 4.3 out of 5 stars (285) | | Date First Available | November 29, 2017 | | Date First Available | November 29, 2017 | | Directions | 1. Shake product well before using. 2. Clean Refractometer prism slide with fresh distilled water. 3. Dry completely with fresh soft clean cloth. Observe to make sure slide looks clean with no residue. 4. Follow manufacturers directions to place several drops of Continuum Refractometer ¯ Hydrometer Calibration Standard fluid on the slide. 5. Wait 40 seconds and calibrate to 35 ppt Salinity. 6. Cle… | | Included Components | Refractometer Calibration Standard | | Is Discontinued By Manufacturer | No | | Item Dimensions LxWxH | 1.38 x 1.38 x 4.25 inches | | Item Package Dimensions L x W x H | 4.17 x 1.34 x 1.22 inches | | Item Weight | 2.39 ounces | | Item model number | QRES60 | | Item model number | QRES60 | | Manufacturer | Brightwell Aquatics | | Manufacturer | Brightwell Aquatics | | Model Name | Refractometer Calibration Standard | | Number of Items | 20 | | Product Dimensions | 1.38 x 1.38 x 4.25 inches; 2.4 ounces | | Size | 60 ml | | Target Audience Keyword | Fish | ## Images ![Continuum Reagents Refractometer Calibration Standard – Seawater Reference for Calibration of Density Measuring Equipment, 60 ml - Image 1](https://m.media-amazon.com/images/I/517ijRZ9hZL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product *by L***I on March 10, 2026* Really good product come fast and accurate my reflectometer was in 1.024 but thank to this product i fix it again (1.026) really easy to use ### ⭐⭐⭐⭐⭐ Works well *by B***Y on March 13, 2026* Good solution for testing my tanks ### ⭐⭐⭐⭐⭐ Good calibration fluid for salinity *by D***N on May 23, 2025* This calibration fluid by reagents matches with Bulk Reef Supply, Refracto Juice, Calibration fluid for salinity. Faster shipping than BRS’s. ## Frequently Bought Together - Continuum Reagents Refractometer Calibration Standard – Seawater Reference for Calibration of Density Measuring Equipment, 60 ml - API SALTWATER MASTER TEST KIT 550-Test Saltwater Aquarium Water Test Kit --- ## 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.pl/products/105936972-continuum-reagents-refractometer-calibration-standard-seawater-reference-for-calibration-density](https://www.desertcart.pl/products/105936972-continuum-reagents-refractometer-calibration-standard-seawater-reference-for-calibration-density) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-25*