{"product_id":"hnhi7004c-standard-calibration-buffer-red-dyed-4-01ph-500ml-each","title":"Hanna Instruments Standard Calibration Buffer Solution, Red Dyed, 4.01pH Value @ 25degC, 0.01pH, 500mL Bottle with Tamper-Proof Seal, Each Each","description":"A pH 4.01 calibration buffer of the highest quality made in line with ISO 3696\/BS 3978 standards utilising high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature-controlled environment under the supervision of certified thermometers.","brand":"Hanna Instruments","offers":[{"title":"HNHI7004C","offer_id":45999688286452,"sku":"HNHI7004C","price":38.45,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/7326\/5908\/files\/HNHI7004C.png?v=1756862711","url":"https:\/\/www.livingstone.com.au\/products\/hnhi7004c-standard-calibration-buffer-red-dyed-4-01ph-500ml-each","provider":"Livingstone","version":"1.0","type":"link"}