{"product_id":"hanna-marine-35-ppt-salinity-calibration-solution-sachet-20-ml","title":"Hanna Marine 35 ppt Salinity Calibration Solution Sachet (20 mL)","description":"\u003cp\u003eThis is a single-use sachet of 35 ppt salinity calibration solution, holding 20 mL. It's a marine salinity standard with a value of 35.00 ppt at 25°C, and it's NIST traceable. Use it as a known reference point when checking or calibrating a salinity meter or conductivity probe.\u003c\/p\u003e\u003cp\u003eEach sachet is made from light-block foil, so the solution stays fresh until you tear it open. Because it's one-time use, you're always calibrating against clean solution rather than something that's been sitting in a bottle or picked up contamination. The lot number and expiry date are stamped on every sachet, and unopened sachets are formulated to last 5 years from the date of manufacture. A temperature chart printed on the sachet shows the actual ppt value at a range of temperatures, which is handy if your solution isn't sitting right on 25°C.\u003c\/p\u003e\u003cp\u003eIt suits reef keepers and fishkeepers who rely on a salinity meter or conductivity probe and want to confirm it's reading accurately. It also works well for anyone who wants a portable, no-fuss option to keep in the toolbox or take along for testing away from the tank.\u003c\/p\u003e\u003cp\u003eSize: 20 mL sachet. Salinity value: 35.00 ppt at 25°C.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67662791147746,"sku":null,"price":7.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0066\/1284\/4602\/files\/0E8BB064-A72F-466D-9581-9810EA960EEE_1981e941-8ab6-43c1-94c0-4d137a265c1d.jpg?v=1791782091","url":"https:\/\/reefsecrets.com.au\/products\/hanna-marine-35-ppt-salinity-calibration-solution-sachet-20-ml","provider":"Reef Secrets ","version":"1.0","type":"link"}