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Designed for monitoring effluents and surface waters, the eXact® Strip Cyanide Kit requires as little as two minutes for cyanide colorimetric analysis. The test procedure is as follows: add 2 ml sample to microcuvette, dip #1 eXact® Strip (adjusts the pH of the sample and converts cyanide to cyanogen chloride) for 30 seconds into sample, then dip #2 eXact® Strip (cyanogen chloride reacts with Isonicotinic and Dimethylbarbituric acids to form a blue color) for 30 seconds. View #2 eXact® Strip for blue color to determine semi-quantitative concentration. After 10 minutes match color in cuvette to color chart for quantitative cyanide concentration. Color reading can also be made using a colorimeter or spectrophotometer for more precise determination. Detection sensitivity is 0.01 ppm (mg/L), with a range to 1.0 ppm (mg/L). The eXact® Strip Cyanide Kit is the quick and accurate solution for testing cyanide concentrations.

Part # 484003. Includes Kit w/o meter, eXact® Strip #1 (bottle of 50), eXact® Strip #2 (bottle of 50),4 cuvettes, pipette, CD, instructions, MSDS, and 2 color charts. Testing range 0.05, 0.1, 0.2, 0.5, 1, 2, 3, 5, >10, >20, <200 ppm (mg/L).

Information on the performance characteristics of eXact® Strip Cyanide can be found at www.epa.gov/etv, or call ITS at 1-800-861-9712 for a copy of the ETV verification report. The use of the ETV® Name or Logo does not imply approval or certification of this product nor does it make any explicit or implied warrantees or guarantees as to product performance.

What is Cyanide and how is it used? Cyanide is a carbon-nitrogen chemical unit which combines with many organic and inorganic compounds. The most commonly used form, hydrogen cyanide, is mainly used to make the compounds needed to make nylon and other synthetic fibers and resins. Other cyanides are used as herbicides.

Why is Cyanide being regulated? In 1974, Congress passed the Safe Drinking Water Act. This law requires EPA to determine safe levels of chemicals in drinking water which do or may cause health problems. These non-enforceable levels, based solely on possible health risks and exposure, are called Maximum Contaminant Level Goals.

The MCLG for cyanide has been set at 0.2 parts per million (ppm) because EPA believes this level of protection would not cause any of the potential health problems described below

Based on this MCLG, EPA has set an enforceable standard called a Maximum Contaminant Level (MCL). MCLs are set as close to the MCLGs as possible, considering the ability of public water systems to detect and remove contaminants using suitable treatment technologies

The MCL has been set at 0.2 ppm because EPA believes, given present technology and resources, this is the lowest level to which water systems can reasonably be required to remove this contaminant should it occur in drinking water. These drinking water standards and the regulations for ensuring these standards are met, are called National Primary Drinking Water Regulations. All public water supplies must abide y these regulations

What are the health effects? Short-term: EPA has found cyanide to potentially cause the following health effects when people are exposed to it at levels above the MCL for relatively short periods of time: rapid breathing, tremors and other neurological effects

Long-term: Cyanide has the potential to cause the following effects from a lifetime exposure at levels above the MCL: weight loss, thyroid effects, nerve damage

How much Cyanide is produced and released to the environment? Production of the most common cyanides was roughly 5 billion pounds a year in the late 1980s and early 1990s. The major cyanide releases to water are discharges from metal finishing industries, iron and steel mills, and organic chemical industries. Releases to soil appear to be primarily from disposal of cyanide wastes in landfills and the use of cyanide-containing road salts. Chlorination treatment of some wastewaters can produce cyanides as a by-product

From 1987 to 1993, according to the Toxics Release Inventory cyanide compound releases to land and water totaled about 1.5 million lbs. These releases were primarily from steel mills and metal heat treating industries. The largest releases occurred in California and Pennsylvania

What happens to Cyanide when it is released to the environment? Cyanides are generally not persistent when released to water or soil, and are not likely to accumulate in aquatic life. They rapidly evaporate and are broken down by microbes. They do not bind to soils and may leach to ground water.

How will Cyanide be detected in and removed from my drinking water? The regulation for cyanide became effective in 1992. Between 1993 and 1995, EPA required your water supplier to collect water samples once and analyze them to find out if cyanide is present above 0.2 ppm. If it is present above this level, the system must continue to monitor this contaminant every 3 months.

If contaminant levels are found to be consistently above the MCL, your water supplier must take steps to reduce the amount of cyanide so that it is consistently below that level. The following treatment methods have been approved by EPA for removing cyanide: Ion Exchange, Reverse Osmosis, Chlorine