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442 Formulations

Units Of Measure “ppm” parts per million (milligram solids per kilogram solution)

442 Formulations 442 Standards are formulated from sodium sulfate, sodium bicarbonate and sodium chloride in the ratio of 4:4:2 respectively. to represent the composition of natural surface water such as rivers, lakes and streams.

Custom standards, at other levels are available on request, simply let us know what you need. Please contact susan@auricalcompany.com or at 800-615-8870 / 650-861-0647.

Accuracy as referenced to NIST Standard Reference Materials or NIST method is ±1.0% @25°C. Traceability certificates available on request at no additional cost.
Item Part Number Size Price Quantity Add to Cart
442 Solution 0015 ppm 442-0015-3 1 LTR $40.00
442 Solution 0030 ppm 442-0030-3 1 LTR $40.00
442 Solution 0150 ppm 442-0150-3 1 LTR $40.00
442 Solution 0300 ppm 442-0300-3 1 LTR $40.00
442 Solution 1,000 ppm 442-1000-3 1 LTR $40.00
442 Solution 1,500 ppm 442-1500-3 1 LTR $40.00
442 Solution 1,500ppm 442-1500-4 4 LTR $40.00
442 Solution 1,500ppm 442-1500-8 20 LTR $100.00
442 Solution 3,000 ppm 442-3000-3 1 LTR $40.00
442 Solution 3,000 ppm 442-3000-4 4 LTR $40.00
442 Solution 7,000 ppm 442-7000-3 1 LTR $40.00
442 Solution 030K ppm 442-030K-3 1 LTR $40.00


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