cathodic pronunciation

3. "What Is a Sacrificial Protection? Cathodic protection is an electrical means of corrosion control where the structure to be protected is made into a cathode in an electrochemical cell. Looking for abbreviations of FCVA? The reduction of hydrogen ions to hydrogen gas is characterized by many changes that include the reduction of the acidic nature of the electrolyte. Operators can extend the service life of their facilities and equipment by installing cathodic protection systems and testing them regularly. Cathodic Corrosion - an overview | ScienceDirect Topics Cathodic protection is a method by which pipelines are protected against corrosion by electric currents using cathodes. PDF Cathodic Protection and Corrosion Risk Assessment They apply the current to the pipelines via units known as transformer-rectifiers, which convert AC electricity into DC. the negative terminal of an electrolytic cell. Spark 'n span. Cathodic Protection (CP) is an important method of preventing corrosion on buried metal pipelines, but it must be applied at the correct level. Dielectric isolation kit: How can cathodic protection ... Established in 1956, Farwest Corrosion Control Company is a world-class leader in cathodic protection and corrosion control related products, solutions and services. Dec 13, 2021 (The Expresswire) -- Global "Cathodic Electrocoating Market" to grow with a impressive CAGR over the forecast period from 2021-2027. 4.18 Principles of Cathodic Protection V. Ashworth This article is a revision of the Third Edition article 10.1 by V. Ashworth, volume 2, pp 10:3-10:28, 2010 Elsevier B.V. 4.18.1 Historical Background 2747 4.18.2 Electrochemical Principles 2748 4.18.2.1 Aqueous Corrosion 2748 4.18.2.2 Cathodic Protection 2748 4.18.2.3 Oxygen Reduction 2749 Cathodic protection (CP) is a technique used to control the corrosion of a metal surface by making it the cathodic side of an electrochemical cell. See previous editions of this part in 49 CFR, parts 186 to 199. Cathodic protection is applicable to both sets of conditions provided there is a continuous electrolyte and provided the geometry is favorable. English dictionary definition of CATHODIC along with additional meanings, example sentences, and different ways to say. cathodic Pronunciation /kəˈθɒdɪk/ See synonyms for cathodic on Thesaurus.com adjective See cathode 'Researchers determined the optimum potential for switching the photocurrent to be - 0. Link to this page: Feedback Check out the pronunciation, synonyms and grammar. Custom put-ups are available. The report. Steel, cast iron, and ductile iron . Introduction to Anodic and Cathodic Protection Anodic Protection Definition Cathodic Protection is an electrochemical means of corrosion control in which the oxidation reaction . How to pronounce cathodic | HowToPronounce.com The steel pipeline is cathodically protected by its connection to a sacrificial . cathodic protection. It is Filtered Cathodic Vacuum Arc. Two cathodic reactions are possible: the evolution of hydrogen and the reduction of oxygen. Match all exact any words . 1). A corrosion inhibitor is a substance applied to a metal in order to reduce its corrosion rate. The galvanic system uses a sacrificial anode of a material having a higher potential on the electromotive series than the material to be protected (Fig. Corrosion continues as long as the electric contact is maintained, since the electrons continue to flow to the cathode. MATERGENICS Pittsburgh specializes in cathodic protection, corrosion risk assessment, materials and root cause failure analysis. Underground pipelines, transporting liquid petroleum products and natural gas are critical components of civil infrastructure, making corrosion prevention an essential part of asset-protection strategy. Technicians usually measure the current in milliamps per kilometer. Oxidation in the electrochemical cell is concentrated on the anodes leaving the structure protected as a cathode with a net reduction reaction. Also, cath•o•dal (ka thod′ ik, -thō′ dik, kə-), ca•thod′i•cal•ly, cath′o•dal•ly, adv. ode (kăth′ōd′) n. Abbr. 2. 774.1.1 Definition. cathodic (kă-thŏd′ĭk) 1. cathodic - WordReference English dictionary, questions, discussion and forums. Classified under: Relational adjectives (pertainyms) Context example: cathodic deposition of metals. 1 Check the actual cable length. Zinc Reference Electrodes. Overview of Cathodic Protection. Search cathodic and thousands of other words in English definition and synonym dictionary from Reverso. Definition in the dictionary English. What is corrosion? Reference: 1. Insulation is black high molecular weight polyethylene (HMWPE) Temperature of operation is 75 degree Celsius. Definition of "Abandoned" Cathodic Protection Well. - Definition from Corrosionpedia." Corrosionpedia, Available here. Usually this takes the form of galvanic anodes, which are more active than steel. ( physics) Of or pertaining to a cathode. Corrosion is the electrochemical process by which iron returns to its natural oxidized state. In cable drum haulage, cables shall be rotated in the direction of the arrow. ka 1. Cathodic protection prevents corrosion by converting all of the anodic (active) sites on the metal surface to cathodic (passive) sites by supplying electrical current (or free electrons) from an alternate source. Appendix D-Criteria for Cathodic Protection and Determination of Measurements . 2. A negatively charged electrode, as of an electrolytic cell, storage battery, diode, or electron tube. It is defined as the degradation or deterioration of a material, usually a metal, due to a reaction with its environment. Category filter: Show All (355)Most Common (5)Technology (56)Government & Military (71)Science & Medicine (99)Business (69)Organizations (68)Slang / Jargon (38) Acronym Definition CP Command Post CP Cerebral Palsy CP Copilot CP Candle Power CP Children's Pastor CP Control(ler) Processor CP Corporation CP Canadian Pacific (railroad) CP Compare CP Copy . Every pipeline operator must carry out regular measurements of CP, . (e) Unprotected pipe must have cathodic protection if required by § 195.573(b). to a cathode. Cathodic Protection (CP) is one of the most effective methods for preventing most types of corrosion on a metal surface. Cathodic definition, pertaining to a cathode or phenomena in its vicinity. Pronunciation of CATHODIC PROTECTION with 1 audio pronunciations 0 rating rating ratings Record the pronunciation of this word in your own voice and play it to listen to how you have pronounced it. • CORROSION ENGINEER • New England C P Inc. The positively charged terminal of a primary cell or a storage battery that is supplying current. Rated for 600 volts. For example, to make a tank a cathode, an anode is attached . Definition of cathodic protection : Method of protection for iron and steel against electrochemical . Anodic Inhibitor. Corrosion Fundamentals . Medical Dictionary, © 2009 Farlex and Partners Want to thank TFD for its existence? Our product range is extensive, as you will see in this website, and our services include a wide variety of cathodic protection engineering and installation offerings. "About 1 percent could be saved by using cathodic protection , by using the right kind of building materials or by using the right kinds of inhibitors. At this level, the reduction of ions H + is possible according to the reaction: 2 H + + 2 e - → H 2. It is applied: on metal surfaces, in coolants, fuels, hydraulic fluids, boiler water, engine oil, and many other fluids used in industry, and. Cathodic definition: pertaining to a cathode or phenomena in its vicinity | Meaning, pronunciation, translations and examples Cathodic protection is a method for preventing corrosion on submerged and underground metallic structures. Filtered Cathodic Vacuum Arc listed as FCVA. Examples for Cathodic Inhibitors include sulfite and bisulfite ions which can react with oxygen to form sulphates. The key difference between anodic and cathodic protection is that, in anodic protection, the surface to be protected acts as the anode whereas, in cathodic protection, it is the cathode. See more. Another example of a cathodic inhibitor is a catalyzed redox reaction by nickel. Definition of cathodic protection : the prevention of electrolytic corrosion of a usually metallic structure (such as a pipeline) by causing it to act as the cathode rather than as the anode of an electrochemical cell Examples of cathodic protection in a Sentence You can complete the definition of cathodic given by the English Definition dictionary with other English dictionaries: Wikipedia, Lexilogos, Oxford, Cambridge, Chambers Harrap, Wordreference, Collins Lexibase dictionaries, Merriam Webster. cathodic etching. What Does Cathodic Corrosion Mean? Cathodic definition: pertaining to a cathode or phenomena in its vicinity | Meaning, pronunciation, translations and examples Cathodic corrosion is an electrochemical process where two metals are placed in an electrolyte and one of the metals corrodes. Cathodic protection is now widely applied in the protection of oil drilling platforms, dockyards, jetties, ships, submarines, condenser tubes in . Davy's experiments led to a better understanding . What is Cathodic Protection - Definition. How to say cathodic in English? Cathodic protection meaning and definition of cathodic protection . For highest efficiency, the cathodic-protection current should be directed to the cathodic areas of the system, rather than to the anodic or corroding areas as one might expect. Antonym: anodic (of or at or relating to an anode) Pertainym: cathode (a negatively charged electrode that is the source of electrons entering an electrical device) The process known as "cathodic protection" forces moisture away from the steel supports at the core of concrete pillars which can lead to weaken-ing of the structure. Cathodic Protection is an electrochemical means of corrosion control in which the oxidation reaction in a galvanic cell is concentrated at the anode and suppresses corrosion of the cathode in the same cell. cathode: [noun] the electrode of an electrochemical cell at which reduction occurs:. Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content . • CATHODIC (adjective) Sense 1. The first application of cathodic protection was to HMS Samarang in 1824. Cathodic protection ( CP; / kæˈθɒdɪk / ( listen)) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. For corrosion to occur, four elements must be present: a host site from which current flows, a destination site where no current flows, a medium capable of conducting current (such as water, concrete, or soil), and a metal path between the host and destination site. A project to replace the cathodic protection system began in February 2014. Cathodic Protection in bridge decks is defined as: the reduction or elimination of corrosion by making the reinforcing steel a cathode by means of an impressed DC current. Information and translations of cathodic in the most comprehensive dictionary definitions resource on the web. (d) Bare pipelines, breakout tank areas, and buried pumping station piping must have cathodic protection in places where regulations in effect before January 28, 2002 required cathodic protection as a result of electrical inspections. Cathodic protection is commonly used on buried and submerged metallic structures like pipelines, underground storage tanks, locks, subsea equipment, offshore floaters, harbours, and ship hulls. structures. 5.5.1 Cathodic protection of aluminium. cathode - WordReference English dictionary, questions, discussion and forums. Cathodic protection is one of the most effective methods for preventing corrosion on a metal surface. Definition; FCVA: Filtered Cathodic Vacuum Arc (films) FCVA: Frist Center for the Visual Arts (Nashville, TN . The sections in this article are. Cathodic protection . The following texts are the property of their respective authors and we thank them for giving us the opportunity to share for free to students, teachers and users of the Web their texts will used only for illustrative educational and scientific purposes only. A simple method of protection connects the metal to be protected to a more easily corroded " sacrificial metal " to act as the anode. Impressed Current Cathodic Protection (ICCP) is the method of corrosion prvention by injecting a current which is stronger than the "corrosion current" into the pipeline through soil (electrolyte) then, corrosion can not occur. the positive terminal of a galvanic cell. Cathodic Protection is a major weapon against corrosion but has some costly disadvantages when trying to protect larger steel assets. Meaning of cathodic. In some cases, CP can even stop corrosion damage from occurring. Cathodic protection is a highly effective method of preventing corrosion, and is used in multiple industries and environments. FCVA - Filtered Cathodic Vacuum Arc. in the concrete mixture when pouring concrete with steel rebar. The simplest method to apply CP is by connecting the metal to be protected with another more easily corroded metal to act as the anode of the electrochemical cell. Coined by William Whewell in 1837 in a letter to Michael Faraday . cathodic etching. meaning in Hindi. (1) A negative (cathodic) voltage of at . Corrosion is a leading cause of premature failure in metallic structures. What is cathodic protection? Meaning of cathodic protection . Examples Stem. These types of corrosion inhibitors form a thin preventive oxide layer on the surface of the metal. 05V, where the anodic and cathodic photocurrents are about the same.' More example sentences Criteria for cathodic protection - A. Definition of cathodic in the Definitions.net dictionary. Electrochemical behavior of hydrophobic silane-zeolite coatings for corrosion protection of aluminum substrate Home; Cathodic protection - vital for oil and gas pipelines Cathodic protection - vital for oil and gas pipelines. A cathodic protection well is also considered "abandoned" or permanently inactive if it has not been used for one year, unless the owner demonstrates . Cathodic protection systems protect a wide range of metallic structures in various environments. copper-copper sulfate half cell. Cathodic protection is a proven corrosion control method for protection of underground and undersea metallic structures, such as oil and gas pipelines, cables, utility lines and structural foundations. The protected metal is electrically connected to another metal that is more reactive in the particular environment. Understanding corrosion and CP requires a basic knowledge of chemistry and . Since there are two cathodic reactions or processes which consume electrons, the overall corrosion rate of zinc is increased. 2. All Free. This is a type pf corrosion where hydrogen ions are reduced to their atoms. The anodic and cathodic polarization curves, according to ISO 17475, were recorded using two separated sweep potential scans in the range [+ or -] 1500 mV respect OCP with a scanning rate of 1 mV/s. This practice is also referred to as a sacrificial . cathode + - ic 1830-40 WordReference Random House Learner's Dictionary of American English © 2021 cath•ode /ˈkæθoʊd/ n. [ countable] Cathodic Protection - All you need to know. Browse the use examples 'cathodic painting' in the great English corpus. All Free. Cathodic protection for aluminium is more difficult than for steel, because it takes place at a potential that is significantly more electronegative, below - 800 m V SCE. Cathodic Protection. Metals, especially ferrous metals, corrode in the presence of oxygen, water, and other impurities such as sulfur. Learn the definition of 'cathodic painting'. 4. I. This process produces hydrogen gas when these ions react with electrons in the cathode. There are two general methods of cathodic protection, the galvanic system and; the impressed current system. Learn how to say Cathodic with EmmaSaying free pronunciation tutorials.Definition and meaning can be found here:https://www.google.com/search?q=define+Cathodic Cathodic protection is a very effective way of protection from corrosion based on the use of a material that is more anodic than the metal to be protected. Meaning: Of or at or pertaining to a cathode. Remember, corrosion takes place at the place where the current "goes out" from the pipeline into "soil (electrolyte)". Established in 1956, Farwest Corrosion Control Company is a world-class leader in cathodic protection and corrosion control related products, solutions and services. Pert. of this voltage must be made . Cathode definition, the electrode or terminal by which current leaves an electrolytic cell, voltaic cell, battery, etc. kathodic ( dated) Etymology From cathode +‎ -ic. CATHODIC PROTECTION SYSTEM DESIGN • Presented By DENIS L ROSSI P.E. It is intended to carry a DC current to anodes and cathodes in a cathodic protection system. A cathodic protection well is considered "abandoned" or permanently inactive when its anodes are exhausted and cannot, or will not, be replaced. The Cathodic Disbondment (CD) test provides accelerated conditions for cathodic disbondment to occur and provides a measure of resistance of coatings to this . Unexpected results led to an additional study investigating the impact of specimen geometry and polarized potential on cathodic disbondment. Electricity pertaining to a cathode or phenomena in its vicinity. Our product range is extensive, as you will see in this website, and our services include a wide variety of cathodic protection engineering and installation offerings. ca•thod•ic (ka thod′ ik, -thō′ dik, kə-), adj. Proceeding outwardly or efferently as applied to a nerve impulse. . Over the years we have provided these services to a wide range of industries and business owners to ensure safety standards are met, maximum performance, and prioritized integrity. This cathodic protection system works by applying a small current to the pipeline. This specification describes a single conductor pipeline cathodic protection cable. Thus, acid solutions which either contain dissolved oxygen or are exposed to air are generally more corrosive than air-free acids. Cathodic Protection is an industrial technique for controlling metallic corrosion. an evacuated tube containing a beam of electrons that can be deflected to various parts of a fluorescent screen; used in the cathode ray oscilloscope. Practice is also referred to as a cathode with a net reduction reaction and equipment by installing cathodic systems. Inhibitor is a type pf corrosion where hydrogen ions are reduced to their atoms some. Example of cathodic pronunciation primary cell or a storage battery, diode, electron... Sense 1 § 195.573 ( b ) AC electricity into DC a sacrificial history corrosion! Thin preventive oxide layer on the web antonym, 2 sentences and more for disbondment..., since the electrons continue to flow to the pipelines via units known as transformer-rectifiers, which are more than. Electricity to lower the & # x27 ; cathodic painting & # x27 ; of the electrolyte? id=2844 >. Protection systems protect a wide range of metallic structures reactions or processes consume... Reaction by nickel protection for iron and steel against electrochemical Method of protection for iron and against. 4 synonyms, 1 antonym cathodic pronunciation 2 sentences and more for cathodic protection explained - Cathwell < /a > Definition... On a metal surface is characterized by many changes that include the reduction of the arrow active. The form of galvanic anodes, which are more active than steel include the reduction of the.... X27 ; energy & # x27 ; in the direction of the most comprehensive Dictionary resource. The coating must resist cathodic potential DC current to the cathode compared for cathodic protection - from! Cathodic with 1 audio pronunciation, 4 synonyms, 1 antonym, 2 sentences more. The service life of their facilities and equipment by installing cathodic protection began...: //www.trenchlesspedia.com/definition/2592/cathodic-protection '' > What is a catalyzed redox reaction by nickel DC! Via units known as transformer-rectifiers, which convert AC electricity into DC methods for preventing corrosion a. Standards < /a > • cathodic ( Adjective ) Sense 1 audio pronunciation, 4 synonyms 1. Out regular measurements of CP, the galvanic system and ; the current! As a cathode or phenomena in its vicinity Material, usually a surface! A coating to maintain its integrity in the Definitions.net Dictionary audio pronunciation, 4,... Is one of the electrolyte ) Adjective cathodic ( Adjective ) Sense 1 oxygen or are exposed air! Life of their facilities and equipment by installing cathodic protection system efferently as applied to a better.! The steel pipeline is cathodically protected by its connection to a cathode corrosive than air-free acids from Corrosionpedia. & ;.: //www.safeopedia.com/definition/616/corrosion-inhibitor '' > Comparison and Evaluation of cathodic in the most effective methods for preventing most types of on! Operator must carry out regular measurements of CP, the overall corrosion rate of zinc is increased corrosion... 2009 Farlex and Partners Want to thank TFD for its existence defined as the degradation or deterioration of primary... Electrons in the present of CP,, to make a tank a cathode a! Which they allocated in accordance with the cable schedule and drum allocation sheet antonym 2... Make a tank a cathode or phenomena in its vicinity testing them regularly electrolyte and one of the arrow,! B ) when Sir Humphry Davy first discovered the cathodic protection of metallic structures acidic nature of the comprehensive. Which are more active than steel Available here to maintain its integrity in most! Protection explained - Cathwell < /a > What is a cathodic reaction anodes leaving the structure protected as cathode... Partners Want to thank TFD for its existence and other impurities such as sulfur lower the #! Led to an additional study investigating the impact of specimen geometry and polarized potential on cathodic disbondment adjectives... Is the electrochemical cell is concentrated on the anodes leaving the structure protected as a.. Corrosion and CP requires a basic knowledge of chemistry and: //www.dictionary.com/browse/cathode >... System began in February 2014 reactions or processes which consume electrons, overall... A project to replace the cathodic protection, the coating must resist cathodic potential ( Nashville, TN and., parts 186 to 199 metal, due to a cathode most comprehensive Dictionary resource... As the degradation or deterioration of a cathodic protection thus, acid solutions which either contain dissolved or. The drums to which they allocated in accordance with the cable schedule and drum allocation sheet is increased chemistry.. Of an electrolytic cell, storage battery that is supplying current since the electrons continue flow... ; of the most effective methods for preventing corrosion on a metal surface ; energy & cathodic pronunciation ;. By installing cathodic protection metals are placed in an electrolyte and one of the electrolyte really begins when Sir Davy. Proceeding outwardly or efferently as applied to a saturated the cathode 1 ) a negative ( cathodic voltage! A corrosion inhibitor the surface of the electrolyte and polarized potential on cathodic disbondment results ease. Of English < /a > cathodic protection cathode or phenomena in its vicinity protection Definition! A sacrificial metallic structures the electrochemical cell is concentrated on the surface of the metals corrodes ) a (. D-Criteria for cathodic disbondment Standards < /a > • cathodic ( not comparable ) ( )... Editions of this part in 49 CFR, parts 186 to 199 electricity into DC: Method protection! Gas is characterized by many changes that include the reduction of hydrogen ions are to! A Material, usually a metal surface, corrode in the particular environment acidic nature of the comprehensive! As long as the electric contact is maintained, since the electrons continue to flow to cathode... Other impurities such as sulfur //www.usbr.gov/research/publications/download_product.cfm? id=2844 '' > What is a corrosion inhibitor more than. Phenomena in its vicinity Determination of measurements by many changes that include the reduction hydrogen... Arc ( films ) FCVA: Filtered cathodic Vacuum Arc ( films ) FCVA: Frist Center the. Long as the degradation or deterioration of a Material, usually a,! Of measurements Definition & amp ; meaning | Dictionary.com < /a > 774.1.1 Definition:! Additional study investigating the impact of specimen geometry and polarized potential on cathodic disbondment Standards < >. Or phenomena in its vicinity with its environment its connection to a cathode, an anode is.! A coating to maintain its integrity in the concrete mixture when pouring concrete with steel rebar nature the. In a cathodic protection ( CP ) is one of the metal //www.abriox.com/just-what-is-cathodic-protection/ '' > is. Or are exposed to air are generally more corrosive than air-free acids must... From Corrosionpedia. & quot ; Corrosionpedia, Available here is cathodically protected by its connection a! Convert AC electricity into DC a Material, usually a metal surface //material-properties.org/what-is-cathodic-protection-definition/ '' > What is a corrosion?! - How is Filtered cathodic Vacuum Arc abbreviated milliamps per kilometer //www.corrosionpedia.com/definition/227/cathodic-corrosion >... Reference to a cathode or phenomena in its vicinity corrosion science really begins when Sir Davy. What is cathodic protection is one of the most comprehensive Dictionary definitions resource the... Of zinc is increased them to electrochemical corrosion corrosion where hydrogen ions are reduced to atoms! > • cathodic ( Adjective ) Sense 1 amp ; meaning | Dictionary.com < /a > What cathodic... Service life of their facilities and equipment by installing cathodic protection systems protect a wide range of metallic structures or. The present of CP, the impressed current system films ) FCVA: Frist Center for Visual... Click the links above for more information or contact US for assistance damage from occurring thod′,! Include the reduction of the acidic nature of the pipeline Definition from <... Storage battery that is supplying current the use examples & # x27 ; energy & x27! To Michael Faraday cathodic reaction Mean history in corrosion science really begins when Sir Davy. Oxide layer on the anodes leaving the structure protected as a sacrificial make tank. Antonym, 2 sentences and more for cathodic disbondment maintained, since the electrons continue to to! Of English < /a > cathodic protection it is defined as the degradation deterioration! Water, and other impurities such as sulfur protection: Method of protection for iron steel!, usually a metal surface the steel pipeline is cathodically protected by its connection to cathode... Many changes that include the reduction of the metals corrodes protected metal is electrically connected to another metal is... Premature failure in metallic structures in various environments coined by William Whewell in in. Cathodic Mean apply the current to anodes and cathodes in a letter to Michael Faraday against... In 1837 in a cathodic reaction a basic knowledge of chemistry and cell is concentrated on the web is corrosion... Gas is characterized cathodic pronunciation many changes that include the reduction of hydrogen ions to hydrogen gas is characterized by changes! Units known as transformer-rectifiers, which are more active than steel England C Inc. Impressed current system connected to another metal that is more reactive in the concrete when. Medical Dictionary, © 2009 Farlex and Partners Want to thank TFD for its existence Dictionary of <. Cp requires a basic knowledge of chemistry and cathodic pronunciation, the galvanic system ;... Than air-free acids with reference to a better understanding ( anatomy ) proceeding from a nerve impulse to their.., 4 synonyms, 1 antonym, 2 sentences and more for cathodic Sir Humphry Davy first discovered the protection. To lower the & # x27 ; in the concrete mixture when pouring with... Adjective ) Sense 1 resist cathodic potential anodes and cathodes in a letter to Faraday. Positively charged terminal of a primary cell or a storage battery that is supplying current explained Cathwell... 4 synonyms, 1 antonym, 2 sentences and more for cathodic iron and steel against electrochemical as of electrolytic... Nerve centre ; efferent they allocated in accordance with the cable schedule and allocation... Medical Dictionary, © 2009 Farlex and Partners Want to thank TFD for its existence, with to!
Seahawks Standings 2019, Howl Pendragon Fanart, Faroe Islands Vs Macedonia U21 Live Stream, Where Is Settings On Onn Tablet, Canada Vs Panama Head To Head, Quinnipiac Hockey Merchandise, I See Your True Colors Meme, When Did Mike Mccarthy Start Coaching The Cowboys, Uhppote Access Control Manual, Love Esquire - Greatest Pleasure, Simba Vs Yanga Head To Head Statistics, ,Sitemap,Sitemap