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500 ml - H-1891-49 - Nitrogen Ammonia, 1 mg/l (H189149)

H-1891-49
Nitrogen ammonia, 1 mg/l
$26.99

6 x 500 ml - NH3-SET - Ammonia Standard Set, 0.2, 2.0, and 20 ppm (NH3SET)

NH3-SET
Two 500 ml bottles of each of the following:

Ammonia Standards: 0.2 ppm, 2.0 ppm, and 20.0 ppm

Standards are traceable to 99.5% pure reference material

$92.00