$78 1.81 GEM Gemstone Refractometer Refractive Index Fluid, 1.8ml Vial Premium Cover Plate and Good Laboratory Practices (GLP)

and Good Laboratory Practices (GLP) system standards

* Scale Range: 45

you need to do it more frequently or less frequently

Subsequently

We were the first to offer it back in 2003

$78 1.81 GEM Gemstone Refractometer Refractive Index Fluid, 1.8ml Vial Premium Cover Plate and Good Laboratory Practices (GLP)Item Description: 1. 8ml Vial of 1. 81 Refractive Index for Gem Refractometers (this vial is about HALF full) American Made and ARSENIC FREE! THIS IS THE BEST FLUID AVAILABLE FOR GEM REFRACTOMETERS! This product is the non poisonous version of the classic Gem Refractive Index Fluid; Diiodomethane (methylene iodide). This product is also made in the USA! The most important aspect of the Refractometer is the quality of the fluid and its Refractive