--- product_id: 443867039 title: "Conductivity and TDS Standard, 1413 S; 500 mL" brand: "oakton" price: "B/.139" currency: PAB in_stock: true reviews_count: 5 category: "Oakton" url: https://www.desertcart.com.pa/products/443867039-conductivity-and-tds-standard-1413-s-500-ml store_origin: PA region: Panama --- # 1000 ppm TDS calibration accuracy ISO 9000 & NIST traceable quality 1.413 mS conductivity precision Conductivity and TDS Standard, 1413 S; 500 mL **Brand:** oakton **Price:** B/.139 **Availability:** ✅ In Stock ## Summary > ⚡ Calibrate like a pro — precision you can trust, results you can flaunt! ## Quick Answers - **What is this?** Conductivity and TDS Standard, 1413 S; 500 mL by oakton - **How much does it cost?** B/.139 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/443867039-conductivity-and-tds-standard-1413-s-500-ml) ## Best For - oakton enthusiasts ## Why This Product - Trusted oakton brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Generous 500 mL Volume:** Ample supply for repeated calibrations, minimizing downtime and maximizing productivity. - • **Trusted Quality Standards:** Manufactured under ISO 9000 guidelines and traceable to NIST standards for uncompromising reliability. - • **Temperature-Adjusted Precision:** Built-in temperature correction tables referenced to 25°C guarantee reliable results regardless of environment. - • **Lab-Grade Calibration Confidence:** Certified 1.413 mS conductivity ensures your instruments deliver pinpoint accuracy every time. - • **Instant Reference at Your Fingertips:** KCl, NaCl, and 442 conversion values printed directly on the bottle for seamless, on-the-spot calibration. ## Overview Oakton's 500 mL Conductivity and TDS Standard (1413 S) delivers lab-grade calibration with a precise 1.413 mS conductivity and 1000 ppm TDS value. Featuring printed conversion and temperature correction tables, it ensures effortless, accurate calibration aligned with ISO 9000 and NIST standards. Ideal for professionals demanding consistent, reliable performance in every measurement. ## Description KCl, NaCl and 442 conversions printed on the bottle for ease of use (excluded on 60-mL bottle, but included in insert). Temperature corrections are printed on the bottle, with certified values listed in tables and referenced to 25°C (excluded on 60-mL bottle, but included in insert). Manufactured under ISO 9000 quality guidelines and traceable to NIST standards. If unopened, shelf life is 1 year. If opened recommended shelf life is 4 months. Conductivity options range from 1 µS/cm to 200,000 µS/cm Review: Top Quality - This is the real stuff. I had a problem with a bad mix of a 1000ppm "calibration standard" NaCl solution when trying to calibrate my EC meter for home hydroponics. Sent it back and bought this. Comes sealed. Has a temperature/EC grid on the label so with a thermometer on hand, it makes calibrating an EC meter dead on accurate. This is laboratory grade. I'll be sticking with this product for calibrations. Review: Good product - Does the job and arrived quickly. ## Features - Description: Conductivity and TDS Standard, 1413 S; 500 mL - Conductivity-to-TDS Calibration Values (ppm442): 1000 - Conductivity Value (mS): 1.413 - Resistivity Value (Mom) - Volume (mL): 500 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01MS6HNT9 | | Best Sellers Rank | 264,434 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 175 in Electrodes | | Brand | Oakton | | Container Type | Bottle | | Customer Reviews | 4.1 out of 5 stars 70 Reviews | | Item Form | Liquid | | Item Weight | 1 Pounds | | Item form | Liquid | | Item volume | 500 Millilitres | | Item weight | 1 Pounds | | Manufacturer | COLE-PARMER | | Manufacturer Part Number | AO-00653-18 | | Model Number | AO-00653-18 | | Package information | Bottle | | Volume | 500 Millilitres | ## Product Details - **Brand:** Oakton - **Item form:** Liquid - **Item volume:** 500 Millilitres - **Item weight:** 454 g - **Package information:** Bottle ## Images ![Conductivity and TDS Standard, 1413 S; 500 mL - Image 1](https://m.media-amazon.com/images/I/31d3A3Z1SzL.jpg) ## Questions & Answers **Q: How do I obtain the calibration certificate?** A: This does not come with a NIST traceable calibration certificate supplied by the manufacturer. However, a certificate of analysis is available on Cole-Parmer.com. Enter the Cole-Parmer part number in the search box at the top of the page. Once of the item page, enter the lot number into the certificate of analysis box. **Q: When does this product expire? 2021?** A: I purchased May 2019. Lot#CC18381 EXP. 04/17/2020. About a year shelf life. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Top Quality *by M***L on 7 March 2021* This is the real stuff. I had a problem with a bad mix of a 1000ppm "calibration standard" NaCl solution when trying to calibrate my EC meter for home hydroponics. Sent it back and bought this. Comes sealed. Has a temperature/EC grid on the label so with a thermometer on hand, it makes calibrating an EC meter dead on accurate. This is laboratory grade. I'll be sticking with this product for calibrations. ### ⭐⭐⭐⭐⭐ Good product *by M***2 on 23 November 2020* Does the job and arrived quickly. ### ⭐ Had Mold Growing in it after 1 use *by A***X on 19 December 2022* I used this once to calibrate a water quality sensor we had deployed at a field site. The second time we used the solution, there were black globes of mold growing in it. The standard was wildly off when we attempted to use it (silly to try this) and the solution was within the use date (hadn't expired yet). We stored the solution according to the label and we handled the calibration solution using gloves and on a clean surface. I have used many conductivity solutions and have never had this issue. Maybe it was just a one off, but I will be using a different conductivity solution from here on out. We can't afford to use poor quality calibration solutions to calibrate thousand $$ instruments while in remote places ## Frequently Bought Together - Oakton AO-00653-18 Oakton Conductivity and TDS Standard, 1413 Μs; 500 mL - Oakton AO-00606-10 Oakton Conductivity and TDS Standard, 12,880 Μs; 500 mL - Oakton AO-00653-16 Oakton Conductivity and TDS Standard, 84 Μs; 500 mL --- ## 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.com.pa/products/443867039-conductivity-and-tds-standard-1413-s-500-ml](https://www.desertcart.com.pa/products/443867039-conductivity-and-tds-standard-1413-s-500-ml) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-10-01*