Specifications
In the absence of free ammonia the unit will assume a yellow or faint yellow-green color. It is normal for the dry sensor to have a greenish hue. It may take up to a few days for a dry sensor to equilibrate with the water. No sampling of water, chemicals, or test procedures are required. The presence of the free ammonia is detectable continuously with a response time of about 15 minutes. Response to decreasing ammonia is slower, requiring about 4 hours to go from TOXIC to SAFE on removal of ammonia.
INTERPRETATION: As little as 0.02 mg/L of free ammonia will produce a greenish hue on the detector surface. This corresponds to a total ammonia (both ionized and free ammonia) of 0.25 mg/L in marine water at pH 8.3. In freshwater at pH 7.0, this corresponds to 3.6 mg/L total ammonia. Free ammonia is much more toxic than ionized ammonia. As free ammonia, the ALERT color corresponds to about 0.05 mg/L, ALARM to about 0.2 mg/L, and TOXIC to about 0.5 mg/L. The ALERT concentration is tolerated for several days, ALARM for a few days, and TOXIC is rapidly harmful. This product is not recommended for use at acid pH
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Manufacturer Info
Seachem Laboratories, Inc. was established in 1980 by Dr. Leo G. Morin , then an associate professor in the School of Medicine, Emory University, Atlanta, GA. In 1994, Dr. Morin retired from the university and became full time CEO and Scientific Director of Seachem. In 2001 Dr. Morin was diagnosed with pancreatic cancer and passed away shortly thereafter. He is succeeded by his son, Dr. Greg Morin, now the current CEO of Seachem. President and COO Doug Hill, along with Vice President of Sales Jim Rogers round out the leadership team. Their goal is to continue the legacy of innovation and intergety that Dr. Leo Morin felt was at the core of Seachem. Seachem moved into a state of the art 110,000 square foot facility marking their 25th anniversary in the industry in 2005. This facility includes production and research laboratories, manufacturing, inventory, shipping, and office space.
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