{"product_id":"ss304-test-ball","title":"Test Balls - SS304","description":"\u003ch2\u003eSS304 Stainless Steel Test Balls for Metal Detector Verification\u003c\/h2\u003e\n\u003cp\u003eA certified AISI 304 stainless steel sphere supplied as a bare ball. Stainless is the contaminant a metal detector struggles most to see, and dropping a bare 304 ball through the product stream is the most demanding — and most honest — verification a free-fall or gravity system can be given.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContaminant type:\u003c\/strong\u003e Stainless Steel 304 (austenitic, weakly magnetic, low conductivity). Available in sphere diameters from 1.0 mm to 12.0 mm — in 0.5 mm steps up to 10.0 mm, plus 11.0 mm and 12.0 mm.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAISI 304 austenitic stainless sphere in bare ball form\u003c\/li\u003e\n\u003cli\u003eThe benchmark contaminant for worst-case sensitivity figures\u003c\/li\u003e\n\u003cli\u003eFor free-fall, gravity and in-product verification\u003c\/li\u003e\n\u003cli\u003eReflects how a real stainless fragment travels through the aperture\u003c\/li\u003e\n\u003cli\u003eIndividually numbered and matched to its traceability certificate\u003c\/li\u003e\n\u003cli\u003e21 sphere sizes from 1.0 mm to 12.0 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe test that sets the line sensitivity\u003c\/h3\u003e\n\u003cp\u003eBecause the smallest reliably detectable SS304 sphere is always larger than the ferrous equivalent, that figure is what ends up in the HACCP plan and on the certificate of analysis a customer asks for. Testing it as a bare ball travelling inside the product — rather than as a rod held near the aperture wall — is what makes the figure defensible. Mills, spice and ingredient plants, bakery premix lines and pet food producers use SS304 balls for exactly this reason, since stainless mesh, wire and blade fragments are the most probable contaminant in that equipment.\u003c\/p\u003e\n\u003cp\u003eAlso available in \u003ca href=\"\/products\/ferrous-test-ball\"\u003eFerrous\u003c\/a\u003e, \u003ca href=\"\/products\/non-ferrous-test-ball\"\u003eNon-Ferrous\u003c\/a\u003e and \u003ca href=\"\/products\/ss316-test-ball\"\u003eSS316\u003c\/a\u003e as test balls, or as a \u003ca href=\"\/products\/ss304-test-wand\"\u003eSS304 test wand\u003c\/a\u003e and a \u003ca href=\"\/products\/ss304-flexible-test-wand\"\u003eSS304 flexible test wand\u003c\/a\u003e. Browse the full range of \u003ca href=\"\/collections\/all-test-pieces\"\u003ecertified metal detector test pieces\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eCertificate included\u003c\/h3\u003e\n\u003cp\u003eEvery Detectronic test piece in this range is supplied with its corresponding traceability certificate. The certificate records the material, the test sphere size and a unique certificate number, so the physical test piece you hold can always be matched to its documentation.\u003c\/p\u003e\n\u003cp\u003eThe unique certificate number is marked on the test piece itself, which is what makes the link between the piece and its paperwork defensible during an audit or a customer inspection.\u003c\/p\u003e\u003ch3\u003eShipping\u003c\/h3\u003e\n\u003cp\u003eStocked products are dispatched within 24 hours on working days.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTypical delivery times\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEU: 1–3 working days\u003c\/li\u003e\n\u003cli\u003eInternational: 2–5 working days\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDelivery times may vary depending on destination, carrier and customs clearance.\u003c\/p\u003e\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhen will I receive my order?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eStocked products are dispatched within 24 hours on working days. Typical delivery is 1–3 working days within the EU and 2–5 working days internationally. Delivery times may vary depending on destination, carrier and customs clearance.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eDoes my test piece include a certificate?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes. Relevant Detectronic test pieces are supplied with their corresponding traceability certificate, allowing the test piece to be linked to its documentation via its unique certificate number.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhich sphere size should I order?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe sphere size you verify with is normally set by your own HACCP plan, customer specification or detector sensitivity assessment. This product is available from 1.0 mm to 12.0 mm in 0.5 mm steps. If you are not sure which size applies to your line, contact us and we will help.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eAre prices shown with or without VAT?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eAll prices are shown excluding VAT, shipping and any applicable duties or import taxes. Any tax due is determined at checkout based on your delivery address.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails open\u003e\u003csummary\u003e\u003cstrong\u003eDo you have questions?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eSend an email to \u003ca href=\"mailto:info@detectronic.com\"\u003einfo@detectronic.com\u003c\/a\u003e or call \u003ca href=\"tel:+4596663060\"\u003e+45 96 66 30 60\u003c\/a\u003e. Our team will be happy to help.\u003c\/p\u003e\u003c\/details\u003e","brand":"Detectronic","offers":[{"title":"1.0 mm","offer_id":56851066847572,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"1.5 mm","offer_id":56851066880340,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"2.0 mm","offer_id":56851066913108,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"2.5 mm","offer_id":56851066945876,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"3.0 mm","offer_id":56851066978644,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"3.5 mm","offer_id":56851067011412,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"4.0 mm","offer_id":56851067044180,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"4.5 mm","offer_id":56851067076948,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"5.0 mm","offer_id":56851067109716,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"5.5 mm","offer_id":56851067142484,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"6.0 mm","offer_id":56851067175252,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"6.5 mm","offer_id":56851067208020,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"7.0 mm","offer_id":56851067240788,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"7.5 mm","offer_id":56851067273556,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"8.0 mm","offer_id":56851067306324,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"8.5 mm","offer_id":56851067339092,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"9.0 mm","offer_id":56851067371860,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"9.5 mm","offer_id":56851067404628,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"10.0 mm","offer_id":56851067437396,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"11.0 mm","offer_id":56851067502932,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true},{"title":"12.0 mm","offer_id":56851067568468,"sku":"400411","price":54.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1064\/8666\/1460\/files\/Test_Ball_SS.png?v=1787305700","url":"https:\/\/shop.detectronic.dk\/products\/ss304-test-ball","provider":"Detectronic Webshop","version":"1.0","type":"link"}