{"product_id":"ph-testing-pen","title":"pH Testing Pen","description":"\u003cp\u003eEver wonder if your paper is acid-free? For archival purposes, paper should have a pH above 6.8, preventing color changes and damage in long-term storage. This handy pen from Lineco helps you make sure: the mark stays purple on surfaces with pH greater than 6.8; it turns colorless or amber on surfaces with pH less than 6.8.\u003c\/p\u003e\n\u003cp\u003eMade in the United States.\u003c\/p\u003e","brand":"Lineco","offers":[{"title":"Default Title","offer_id":43843437691138,"sku":"099295530811","price":14.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2228\/7429\/files\/LinecopHtestingpenPOW_1of1.jpg?v=1693016319","url":"https:\/\/stlartsupply.mom\/en-ca\/products\/ph-testing-pen","provider":"St. Louis Art Supply","version":"1.0","type":"link"}