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442 Natural Water™ Standard Solution
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El-Elmaia Company
Cairo, Egypt
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A large number of Myron L® instruments are calibrated using 442 Natural Water™ Standard Solution. When testing samples of boiler and cooling water, city water supply, lakes, wells, etc., this is the finest option. The term "442" describes the mixture of salts and deionized water that makes up this standard: 20% sodium chloride, 40% sodium bicarbonate, and 40% sodium sulfate. Because the kind and concentration of natural water salts might differ significantly depending on the region, a combination of conventional salts is required. The Myron L® Company developed the 442 Standard over 55 years ago after extensive investigation. It is still the most widely recognized standard in the world.



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