{"product_id":"microscope-eyepiece-reticules-graticules-ng1-patterson-globes-and-circles","title":"Microscope Eyepiece Reticules (Graticules) NG1 Patterson Globes and Circles","description":"\u003ch1\u003eMicroscope Eyepiece Reticules (Graticules) \u003c\/h1\u003e\n\u003ch1 class=\"text-secondary\"\u003eNG1 Patterson Globes and Circles\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEyepiece Reticle with central Rectangle and Globes\/Circles for particle sizing and counting\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specification\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe reticle pattern consists of a central rectangle, subdivided into 9 smaller rectangles with a number of circles and dots (globes) along the top and bottom edges. Each circle is marked with the diameter in units, 250 units being the length of the large rectangle. Rectangle size is nominally 4.5mm x 2.025mm and circle\/dot sizes in microns are nominally 450, 360, 270, 225,180, 145, 110, 74, 37 and 18.\u003cbr\u003e\u003cbr\u003eReference: H.S.Patterson and W.Cawood.Transactions of the Faraday Society, Vol. 32 Feb 1936.“The Determination of Size Distribution in Smokes.” Pp. 1084-1088.\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"text-primary\"\u003eGlass Type and Thickness\u003c\/span\u003e\u003cbr\u003eSoda Lime 1.5mm thick\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"text-primary\"\u003eDiameter Tolerance\u003c\/span\u003e\u003cbr\u003e+0\/-0.1mm\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"text-primary\"\u003eOrientation\u003c\/span\u003e\u003cbr\u003eCorrect reading through glass\u003c\/p\u003e","brand":"Auckland Scientific","offers":[{"title":"16mm","offer_id":58332713910597,"sku":"01B16250","price":138.93,"currency_code":"GBP","in_stock":true},{"title":"19mm","offer_id":58332713943365,"sku":"01B19250","price":138.93,"currency_code":"GBP","in_stock":true},{"title":"20.4mm","offer_id":58332713976133,"sku":"01B20.4250","price":138.93,"currency_code":"GBP","in_stock":true},{"title":"21mm","offer_id":58332714008901,"sku":"01B21250","price":138.93,"currency_code":"GBP","in_stock":true},{"title":"23mm","offer_id":58332714041669,"sku":"01B23250","price":138.93,"currency_code":"GBP","in_stock":true},{"title":"24mm","offer_id":58332714074437,"sku":"01B24250","price":162.96,"currency_code":"GBP","in_stock":true},{"title":"24.5mm","offer_id":58332714107205,"sku":"01B24.5250","price":162.96,"currency_code":"GBP","in_stock":true},{"title":"25mm","offer_id":58332714139973,"sku":"01B25250","price":162.96,"currency_code":"GBP","in_stock":true},{"title":"26mm","offer_id":58332714172741,"sku":"01B26250","price":162.96,"currency_code":"GBP","in_stock":true},{"title":"27mm","offer_id":58332714205509,"sku":"01B27250","price":162.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1066\/1930\/6309\/files\/ng1.jpg?v=1782073881","url":"https:\/\/auckland-scientific.co.uk\/products\/microscope-eyepiece-reticules-graticules-ng1-patterson-globes-and-circles","provider":"Auckland Scientific Ltd","version":"1.0","type":"link"}