DPD Free Chlorine definition

DPD Free Chlorine or “DPD-FC” means the FC (“free chlorine”) concentration from DPD-based test methods. The DPD-based test result for FC includes cyanurate-bound available chlorine as well as HOCl and OCl-, that is, DPD-FC = FAC CBC. The terms DPD-FC and FAC would be interchangeable only in the absence of cyanuric acid.
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Examples of DPD Free Chlorine in a sentence

  • ClO2 concentration during batch experiments was monitored using the Hach Method 10101 –DPD Method for ClO2 (0.00 to 5.00 mg/L) utilizing a glycine reagent and Hach DPD Free Chlorine Reagent (Hach Company, Loveland, CO).

  • The use of this meter requires two powdered reagents;- DPD Free Chlorine Reagent- DPD Total Chlorine Reagent.These white powders may cause eye and respiratory tract irritations, as well as allergic skin reactions.

  • Since NaOCl degrades with time, pocket colorimeter (Hach Company) was used to determine its concentration by the DPD Free Chlorine method prior to experimental works.

  • Levels of ClO2 were analyzed in both hot and cold water samples using the Hach Method 10101 –DPD Method for ClO2 (0.00 to 5.00 mg/L) utilizing a glycine reagent and Hach DPD Free Chlorine Reagent (Hach Company, Loveland, CO).

  • The contents of one DPD Free Chlorine reagent powder pillow were added to the second cell.

Related to DPD Free Chlorine

  • Polychlorinated biphenyls means aromatic compounds formed in such a manner that the hydrogen atoms on the biphenyl molecule (two benzene rings bonded together by a single carbon-carbon bond) may be replaced by up to ten chlorine atoms; and

  • Polystyrene foam means blown polystyrene and expanded and

  • PCBs means polychlorinated biphenyls.

  • Low-level radioactive waste or “waste” means radioactive material that consists of or contains class A, B, or C radioactive waste as defined by 10 C.F.R. 61.55, as in effect on January 26, 1983, but does not include waste or material that is any of the following:

  • Soft drinks means nonalcoholic beverages that contain natural or artificial sweeteners. "Soft drinks" does not include beverages that contain milk or milk products, soy, rice, or similar milk substitutes, or that contains greater than fifty per cent vegetable or fruit juice by volume.

  • chemical tanker means a ship constructed or adapted and used for the carriage in bulk of any liquid product listed in chapter 17 of the International Bulk Chemical Code;

  • Asbestos means the asbestiform varieties of serpentinite (chrysotile), riebeckite (crocidolite), cummingtonite-grunerite, anthophyllite, and actinolite-tremolite.

  • Radioactive substance means a substance that emits ionizing

  • Sewage sludge fee weight means the weight of sewage sludge, in dry U.S. tons, excluding admixtures such as liming materials or bulking agents. Annual sewage sludge fees, as per section 3745.11(Y) of the Ohio Revised Code, are based on the reported sludge fee weight for the most recent calendar year.

  • Expanded polystyrene means blown polystyrene and expanded

  • Crawling bug insecticide means any insecticide product that is designed for use against ants, cockroaches, or other household crawling arthropods, including, but not limited to, mites, silverfish or spiders. “Crawling Bug Insecticide” does not include products designed to be used exclusively on humans or animals, or any house dust mite product. For the purposes of this definition only:

  • Diesel means a distillate oil which can be used as fuel for the operation of a compression ignition engine and which has an approximate boiling temperature of between 150 °C to 400 °C;

  • Fluid means material or substance which flows or moves whether in a semisolid, liquid, sludge, gas, or any other form or state.

  • Fluoroscopic imaging assembly means a subsystem in which X-ray photons produce a visual image. It includes the image receptor(s) such as the image intensifier and spot-film device, electrical interlocks, if any, and structural material providing linkage between the image receptor and diagnostic source assembly.

  • Plasma arc incinerator means any enclosed device using a high intensity electrical discharge or arc as a source of heat followed by an afterburner using controlled flame combustion and which is not listed as an industrial furnace.

  • Radioactive waste means radioactive waste as defined in Article 3(7) of Council Directive 2011/70/Euratom8;

  • Putrescible waste means a solid waste that contains organic matter capable of being decomposed by microorganisms so as to cause a malodor, gases, or other offensive conditions, or which is capable of providing food for birds and other vectors. Putrescible wastes may form a contaminated leachate from microbiological degradation, chemical processes, and physical processes. Putrescible waste includes, but is not limited to, garbage, offal, dead animals, general household waste, and commercial waste. All solid wastes which do not meet the definitions of inert or chemical wastes shall be considered putrescible wastes.

  • Chemical Storage Facility means a building, portion of a building, or exterior area adjacent to a building used for the storage of any chemical or chemically reactive products.

  • Sewage sludge weight means the weight of sewage sludge, in dry U.S. tons, including admixtures such as liming materials or bulking agents. Monitoring frequencies for sewage sludge parameters are based on the reported sludge weight generated in a calendar year (use the most recent calendar year data when the NPDES permit is up for renewal).

  • Sludge dryer means any enclosed thermal treatment device that is used to dehydrate sludge and that has a maximum total thermal input, excluding the heating value of the sludge itself, of 2,500 Btu/lb of sludge treated on a wet-weight basis.

  • Polystyrene foam adhesive means an aerosol adhesive designed to bond polystyrene foam to substrates.

  • Criteria pollutant means a pollut- ant for which the Administrator has promulgated a national ambient air quality standard pursuant to 42 U.S.C. 7409 (i.e., ozone, lead, sulfur dioxide, particulate matter, carbon monoxide, nitrogen dioxide).

  • explosive actuated fastening device means a tool that is activated by an explosive charge and that is used for driving bolts, nails and similar objects for the purpose of providing fixing;

  • Chemicals means substances applied to forest lands or timber including pesticides, fertilizers, and other forest chemicals.

  • Geothermal fluid means water in any form at temperatures greater than 120

  • Aboveground storage tank shall have the meaning ascribed to such term in Section 6901 et seq., as amended, of RCRA, or any applicable state or local statute, law, ordinance, code, rule, regulation, order ruling, or decree governing aboveground storage tanks.