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442 Refractive Index Calibration Fluid
Auto-Off: After 3 minutes of non-use
adjustable TDS ratio
and nylon padded zipper pouch
GEM Gemstone Refractometer Refractive Index Fluid 1.81nD 15 Gram Vial CHECKER 442 Refractive Index Calibration FluidItem Description: 3. 6ml of 1. 81 Refractive Index for Gem Refractometers, American Made, ARSENIC FREE! 50% MORE THAN THE 10 GRAM VIAL! THE LARGEST SIZE AVAILABLE ANYWHERE! 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). The most important aspect of the Refractometer is the quality of the fluid and its Refractive Index. This
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