{"product_id":"rubert-531-precision-reference-specimen-type-c-sine-wave-ra-0-3-m-14-in","title":"Rubert 531 | Precision Reference Specimen | Type C, Sine wave, Ra = 0.3 µm (14 µin)","description":"\u003cp\u003eThe Rubert 531 is an ISO 5436-1 type C precision reference specimen with a sine wave profile, used for checking and calibrating surface measuring instruments. It has RSm = 100 µm, Pt = 1.0 µm, giving Ra = 0.3 µm (14 µin). It is offered in two versions: 531E, with a hard nickel-boron top layer, and 531X, without a top layer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eISO 5436-1 type C, sine wave profile\u003c\/li\u003e\n\u003cli\u003eRSm = 100 µm, Pt = 1.0 µm; Ra = 0.3 µm (14 µin)\u003c\/li\u003e\n\u003cli\u003eElectroformed nickel; 531E with hard nickel-boron top layer or 531X without\u003c\/li\u003e\n\u003cli\u003eUKAS calibration available on request from Rubert's accredited laboratory\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rubert","offers":[{"title":"531E – nickel-boron top layer","offer_id":67656277721201,"sku":"531E","price":0.0,"currency_code":"AED","in_stock":true},{"title":"531X – no top layer","offer_id":67656277753969,"sku":"531X","price":0.0,"currency_code":"AED","in_stock":true}],"url":"https:\/\/www.generaltechshop.ae\/products\/rubert-531-precision-reference-specimen-type-c-sine-wave-ra-0-3-m-14-in","provider":"General Tech Services LLC","version":"1.0","type":"link"}