{"product_id":"rubert-528-precision-reference-specimen-type-c-sine-wave-ra-0-5-m-20-in","title":"Rubert 528 | Precision Reference Specimen | Type C, Sine wave, Ra = 0.5 µm (20 µin)","description":"\u003cp\u003eWith RSm = 50 µm, Pt = 1.5 µm and Ra = 0.5 µm (20 µin), the Rubert 528 is a sine wave precision reference specimen classed as ISO 5436-1 type C. Laboratories use it for checking and calibrating surface measuring instruments. It is offered in two versions: 528E, with a hard nickel-boron top layer, and 528X, 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 = 50 µm, Pt = 1.5 µm; Ra = 0.5 µm (20 µin)\u003c\/li\u003e\n\u003cli\u003eElectroformed nickel; 528E with hard nickel-boron top layer or 528X 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":"528E – nickel-boron top layer","offer_id":67656292663409,"sku":"528E","price":0.0,"currency_code":"AED","in_stock":true},{"title":"528X – no top layer","offer_id":67656292696177,"sku":"528X","price":0.0,"currency_code":"AED","in_stock":true}],"url":"https:\/\/www.generaltechshop.ae\/products\/rubert-528-precision-reference-specimen-type-c-sine-wave-ra-0-5-m-20-in","provider":"General Tech Services LLC","version":"1.0","type":"link"}