{"product_id":"gold-testing-kit-large","title":"Gold Testing Kit - Large ( shipping only available in Europe)","description":"\u003cp\u003eThis professional Gold Testing Kit is designed for fast and accurate verification of gold and silver purity using the traditional touchstone testing method. Ideal for jewelers, goldsmiths, refiners, pawnbrokers, and precious-metal buyers, this set helps distinguish solid gold from plated items with confidence.\u003c\/p\u003e\n\u003cp\u003eThe kit includes gold testing solutions for 8ct, 14ct, 18ct, and 21.6ct, a silver testing solution calibrated to 800 standard, a durable touchstone, and Kontrasol cleaning solution to maintain accurate and repeatable results.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eKit Contents\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTesting solutions for Gold: 8ct, 14ct, 18ct, 21.6ct\u003c\/li\u003e\n\u003cli\u003eSilver testing solution (800 standard)\u003c\/li\u003e\n\u003cli\u003eHigh-quality touchstone\u003c\/li\u003e\n\u003cli\u003eKontrasol cleaning agent\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eHow to Use\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrepare the metal\u003c\/strong\u003e\u003cbr\u003eLightly file (rasp) the surface of the metal to expose the core and distinguish solid gold from gold-plated items.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCreate a test mark\u003c\/strong\u003e\u003cbr\u003eRub the metal firmly against the touchstone using a clean, sharp downstroke.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApply the testing solutions\u003c\/strong\u003e\u003cbr\u003eStart with the 8ct acid and progress upward (14ct, 18ct, 21.6ct):\n\u003cul\u003e\n\u003cli\u003e8ct acid reacts with metals below 8ct\u003c\/li\u003e\n\u003cli\u003e14ct acid reacts with metals below 14ct\u003c\/li\u003e\n\u003cli\u003e18ct acid reacts with metals below 18ct\u003c\/li\u003e\n\u003cli\u003e21.6ct acid reacts with metals below 21.6ct\n\u003cul\u003e\n\u003cli\u003eIf the mark reacts or begins to foam, the gold content is below the carat level of the applied solution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional cross-check\u003c\/strong\u003e\u003cbr\u003eFor added accuracy, verify results using a testing star (sold separately).\u003cbr\u003eMake an additional downstroke with the matching gold testing star, apply the same solution to both marks, and compare reactions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the touchstone\u003c\/strong\u003e\u003cbr\u003eRinse the stone carefully with water, then apply Kontrasol with a soft cloth to clean and preserve the surface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSilver testing follows the same procedure using the included solution calibrated to 800 silver.\u003c\/p\u003e","brand":"DAVTOOLS","offers":[{"title":"Default Title","offer_id":45052627747137,"sku":"TET-3510","price":95.04,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/0718\/9569\/files\/TESTKIT.jpg?v=1765132237","url":"https:\/\/davtools.com\/ar\/products\/gold-testing-kit-large","provider":"DAVTOOLS","version":"1.0","type":"link"}