{"product_id":"hardgrove-grindability-standards-4-per-set-with-certificate","title":"New  Hardgrove Grindability Standards, 4 per Set, with Certificate, Quality Assurance Resources, HGI-RM","description":"\u003cp\u003e\u003cstrong\u003eQuality Assurance Resources® Hardgrove Grindability Standards, 4 per Set, with Certificate, HGI-RM\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSamples of coal used to calibrate instruments designed to determine ease with which coal can be pulverized\u003c\/li\u003e\n\u003cli\u003eCertified reference material —calibration standards for Hardgrove Grindability Index Apparatus\u003c\/li\u003e\n\u003cli\u003eHGI-RM is prepared in series of steps over several days\u003c\/li\u003e\n\u003cli\u003eHardgrove Grindability Index is calculated on four splits (or portions), two each taken from two reserved cans\u003c\/li\u003e\n\u003cli\u003eResults are averaged to give the index for entire lot\u003c\/li\u003e\n\u003cli\u003eHGI-RM come in sets of four, containing four standards of approximate HGI values 40, 60, 80, and 100\u003c\/li\u003e\n\u003cli\u003eUse as periodic standardization check to insure compliance to ASTM standard methods\u003c\/li\u003e\n\u003cli\u003eCans of standard reference sample are shipped to customers along with Certificate of Analysis and questionnaire designed by ASTM to obtain data on quality of sample\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Others","offers":[{"title":"PK (1)","offer_id":51110998409531,"sku":"90-9300-10-PK","price":1496.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-9300-10_63b1826c-f88d-4dc5-8cee-23686ea7a45a.png?v=1785296035","url":"https:\/\/preiser.com\/products\/hardgrove-grindability-standards-4-per-set-with-certificate","provider":"Preiser Scientific","version":"1.0","type":"link"}