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ignition temperature of plastic

11/01/2021

This temperature is required to supply the activation energy needed for combustion.The temperature at which a chemical ignites decreases as the pressure or oxygen concentration increases. Hot Surface Minimum Ignition temperatures were 220oC for Pittsburgh seam coal, 360oC for paper dust, 270℃ for Arabic gum powder, and > 400oC for brass powder. ISO 871:2006 specifies a laboratory method for determining the flash-ignition temperature and spontaneous-ignition temperature of plastics using a hot-air furnace. 1.1 This fire test response test method 2 covers a laboratory determination of the flash ignition temperature and spontaneous ignition temperature of plastics using a hot-air furnace. 140°-150° 580° Polyesters . Auto-ignition temperature of the couplant. ig Rubber and plastic industries > Plastics > Plastics in general. Source(s): https://owly.im/a97Un. 0 0. What is the WPS button on a wireless router? Density : 0.89-0.94 g/cm3 Solubility in / Miscibility with Water : Insoluble Additional information : Soluble in boiling, aromatic chlorinated solvents General Information SECTION 10 - STABILITY AND REACTIVITY Chemical stability 1.2 The values stated in SI units are to be regarded as standard. Ignition Temperature . 0 By Chemical inertness, we mean that PTFE fluorocarbon resins can be in continuous contact with another substance with no detectable chemical reaction taking place. The autoignition temperature or kindling point of a substance is the lowest temperature in which it spontaneously ignites in a normal atmosphere without an external source of ignition, such as a flame or spark. All Rights Reserved. Above the upper explosive or flammable limit the mixture is too rich to burn. ASTMD192916-Standard Test Method for Determining Ignition Temperature of Plastics- 1.1 This fire test response test method2 covers a laboratory determin ~ species ofwood were measured at 5 irradiance levels from 15.4 to 31.7 kW/m2 (Table 2). Primary Chemical: The heated plastic starts to degrade, generally through the formation of free radicals, under the influence of the ignition source. 107°-124° 349° Polyethylene hd. The ignition point of FRP materials is typically around 275° to 375°C, which is relatively low compared to metallic materials, i.e. @article{osti_10188488, title = {The ignition temperature of solid explosives exposed to a fire}, author = {Creighton, J R}, abstractNote = {When a system containing solid explosive is engulfed in a fire it receives a heat flux that causes the temperature of the system to rise monotonically. It is usually applied to a combustible fuel mixture. End Result: This test results in a Spontaneous Ignition Temperature or Self-Ignition Temperature (SIT) and Flash Ignition Temperature (FIT). Auto-ignition Temperature >650 °F >340 °C Energy Required for Ignition >2,500 kj/m2 Fuel Value Content 19,900 BTU/lb. 220°-268° 432°-488° Polyethylene ld. T The Piloted ignition of six common thermoplastics has been studied by exposing horizontal samples (65 times; 65 times; 6 mm thick) to irradiance levels in the range 10–40 kw m −2. when exposed to a heat flux {\displaystyle T_{\text{ig}}} where k = thermal conductivity, ρ = density, and c = specific heat capacity of the material of interest, ASTM D1929-20 covers a laboratory determination of the flash ignition temperature and spontaneous ignition temperature of plastics using a hot-air furnace. Special Notes: Equivalent to ISO 871-1996, Plastics—Determination of Ignition Temperature Using a Hot-Air Furnace. Ignition Temperature Of Plastic. 1.1 This fire test response test method 2 covers a laboratory determination of the flash ignition temperature and spontaneous ignition temperature of plastics using a hot-air furnace. among any number of hundreds of degrees. Buy this standard Abstract Preview. 1.2 The values stated in SI units are to be regarded as standard. Zabetakis, M. G. (1965), Flammability characteristics of combustible gases and vapours, U.S. Department of Mines, Bulletin 627. 160°-275° 424°-532° Polycarbonate . The plastic will melt at a lower temperature than it will burn, so you shouldn't worry. It depends on the type of plastic. determination of the flash ignition temperature and spontane-ous ignition temperature of plastics using a hot-air furnace. Flaming ignition was observed for all samples tested within this range, with the exception 140°-150° 580° Polyesters. DISCUSSION TRP consists of two components: 1) ignition temperature above ambient (AT,,) and 2) combination … Melting Point . How long will the footprints on the moon last? - In the event of couplant auto-ignition, plastic powder, if Ignition temperatures range among any number of hundreds of degrees. 91°-125° 560° Cellulosics. flash ignition temperature; ignition temperature; spontaneous ignition temperature ; To find similar documents by ASTM Volume: 08.01 (Plastics (I): D256 - D3159) To find similar documents by classification: 13.220.40 (Ignitability and burning behaviour of materials and products) 83.080.01 (Plastics in … S. Grynko, "Material Properties Explained" (2012). Fine thermocouples were attached to the exposed face and allowed the surface temperature to be monitored continuously. What date do new members of congress take office? {\displaystyle q''} Melting Point Range. As such, those plastic materials used in construction contain fire-retarding compounds to increase the temperature necessary before ignition and/or to lower the rate of burning. Sources: R.L. ASTM D1929-20,Standard Test Method for Determining Ignition Temperature of Plastics. The plastics PS, PP, PC and PE are valuable energy carriers to maintain incinerator temperature. Primary Thermal: The ignition source heats the bulk plastic to create a rise in temperature that depends on the product and the ignition source energy output. The temperature at which a chemical ignites decreases as the pressure or oxygen concentration increases. Copyright © 2021 Multiply Media, LLC. ~ I The surface temperature at ignition (Tig), and the time to !gnition (1jg) for each ofthe fo~r,. The Auto-Ignition Temperature is not the same as Flash Point - The Flash Point indicates how easy a chemical may burn. Why don't libraries smell like bookstores? Specification: Temperature of copper furnace: - Can be constant between 150~450 : THE EFFECT OF Y, Gd AND Ca ON THE IGNITION TEMPERATURE OF EXTRUDED MAGNESIUM ALLOYS 670 Materiali in tehnologije / Materials and technology 54 (2020) 5, 669–675 Figure 1: Instrumentation for the measurement of ignition tempe-ratures SARSTEDT AG & Co. KG Central Quality Assurance *1 Suitability depending on the plastic material and the nature of load applied. What does contingent mean in real estate? ISO 871:2006 specifies a laboratory method for determining the flash-ignition temperature and spontaneous-ignition temperature of plastics using a hot-air furnace. [4], Autoignition point of selected substances. *2 Caution: Plastics start to become brittle at temperatures below zero. Specification: Temperature of copper furnace: - Can be constant between 150~450 ℃ ; Plastics — Determination of ignition temperature using a hot-air furnace. Flash ignition temperature (ASTM D 1929) / oC Self-ignition temperature (ASTM D 1929) / oC Heat of combustion, ∆H / MJkg-1 PVC 1870 70 - 80 225 - 275 > 530 > 530 10 PC 1200 150 - 155 350 - 400 520 No ignition 31 PMMA 1180 85 - 110 170 - 300 300 450 26 melt 228°-230° Cotton Does not melt 250° Rubber Does not melt It is one of a number of methods in use for evaluating the reaction of plastics to the effects of ignition sources. The various building codes typically have sections that deal with plastic … q This temperature is required to supply the activation energy needed for combustion. It depends on the type of plastic. Temperatures vary widely in the literature and should only be used as estimates. 88°-125° 416° Acrylics. How old was queen elizabeth 2 when she became queen? ignition temperature. Ignition Temperature. The ignition temperature of paper is 451 degrees Fahrenheit, or 233 degrees Celsius. "Flammability and flame retardancy of leather", Analysis of Effective Thermal Properties of Thermally Thick Materials, Native American use of fire in ecosystems, https://en.wikipedia.org/w/index.php?title=Autoignition_temperature&oldid=996871939, Creative Commons Attribution-ShareAlike License, Substances which spontaneously ignite in a normal atmosphere at naturally ambient temperatures are termed, This page was last edited on 29 December 2020, at 00:41. Versus Temperature and (b) Mass Loss Rate Versus Temperature 13 9 Char Mass Fraction Versus Hydrogen Mole Fraction in Polymer 14 10 Temperature Dependence of Polymer Heat Capacity, Thermal Conductivity, and Density 16 11 Ignition Temperature Versus External Heat Flux for PPS, PC, PA6, PBT, PS, PP, UPT, and PMMA 21 Autoignition temperatures of liquid chemicals are typically measured using a 500-millilitre (18 imp fl oz; 17 US fl oz) flask placed in a temperature-controlled oven in accordance with the procedure described in ASTM E659. aluminium alloys or steel. {\displaystyle T_{0}} The qualification will not lead to confusion, however, if one keeps in mind the basic facts about the behavior of PTFE resins. When did organ music become associated with baseball? ASTM D1929-20,Standard Test Method for Determining Ignition Temperature of Plastics. What is the kannada word for quinova seeds? 49°-121° 475°-540° Nylons . Intertek Testing Locations: York, PA; Middleton, WI; Coquitlam, BC Is there a way to search all eBay sites for different countries at once? 1.1 This International Standard specifies a laboratory method for determining the flash-ignition temperature and spontaneous-ignition temperature of plastics using a hot-air furnace. Standard Test Method for Brittleness Temperature of Plastics and Elastomers by Impact: D1238 - 20: Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer: D1929 - 20: Standard Test Method for Determining Ignition Temperature of Plastics: D2843 - 19 What you should worry about is your reason for putting plastic in an oven. Textbook solution for Industrial Plastics: Theory and Applications 6th Edition Lokensgard Chapter 4 Problem 4.7Q. Because of the critical heat balance that exists during the ignition process, the measured "ignition temperature" is dependent upon the characteristics of the testing apparatus, the' degree of control of the ambient temperature condi­ tions, the … Ignition temperature is the temperature at which something catches fire and burns on its own. The autoignition temperature or kindling point of a substance is the lowest temperature in which it spontaneously ignites in a normal atmosphere without an external source of ignition, such as a flame or spark. An ignition test for plastics An ignition test for plastics Hunter, L. W.; Hoshall, C. H. 1980-12-01 00:00:00 The Johns Hopkins University, Applied Physics Laboratory, Johns Hopkins Road, Laurel, Maryland 20810, USA INTRODUCTION This report presents first results of an ignitability test for plastics. It depends on the type of plastic. Fibre-reinforced plastic (FRP) (also called fiber-reinforced polymer, or fiber-reinforced plastic) is a composite material made of a polymer matrix reinforced with fibres.The fibres are usually glass (in fibreglass), carbon (in carbon fiber reinforced polymer), aramid, or basalt.Rarely, other fibres such as paper, wood, or asbestos have been used. Acrylics 91°-125° 560° Cellulosics 49°-121° 475°-540° Nylons What are the safety precautions on using of magnifying glass? 122°-137° 349° Polypropylene 158°-168° 570° Polystyrene 100°-120° Flammability of plastics 1: Ignition temperatures Flammability of plastics 1: Ignition temperatures Kashiwagi, Takashi 1988-09-01 00:00:00 temperature of Plexiglas G, 360400°C with the CO, laser and about 280°C with the conical heater, is reasonable. ig Factors that may cause variation include partial pressure of oxygen, altitude, humidity, and amount of time required for ignition. For plastics, the actual process of combustion is very complex but broadly follows 6 separate stages: Primary Thermal: The ignition source heats the bulk plastic to create a rise in temperature that depends on the product and the ignition source energy output. • Limitations in performance from vaporization of the base fluid, and the melting point of a plastic polymer, when incor-porated into couplant. Nevertheless, this statement, like all generalizations, must be qualified if it is to be perfectly accurate. We have step-by-step solutions for your textbooks written by Bartleby experts! 220°-268° 432°-488° Polyethylene ld 107°-124° 349° Polyethylene hd Ignition Temperatures of Various Common Materials The following data demonstrates that the chemical mixtures found in fireworks are less prone to ignite if heated than are many common materials found in retail stores, warehouses, and homes. The temperature rise can often be approximated by a linear rise for extended periods of time. What is the distrbution of water in the lithosphere? Standard Test Method for Determining Ignition Temperature of Plastics A description is not available for this item. the identification of the ignition temperatures, selected D. DVORSKY et al. Initial temperature for each of these waste samples was noted before the smoldering test in a muffle furnace & under gradual temperature rise in a muffle furnace (i.e., 3 °C/min), the temperature required for ignition of MSW was identified and recorded using IR based hand-held thermometer. it takes for a material to reach its autoignition temperature D1929 (RL) April 15, 2012 Standard Test Method for Determining Ignition Temperature of Plastics A description is not available for this item. 4.1 Tests made under conditions herein prescribed can be of considerable value in comparing the relative ignition characteristics of different materials. is given by the following equation:[3]. 2. Ignition temperature : > 400°C Decomposition temperature : > 300°C Danger of explosion : Product is not explosive. The values stated in SI units are to be regarded as standard. Plastics, like all organic materials, will burn. End Result: This test results in a Spontaneous Ignition Temperature or Self-Ignition Temperature (SIT) and Flash Ignition Temperature (FIT). In the event of couplant auto-ignition, plastic powder, if incorporated into the formulation, will ignite and the fire becomes more difficult to extinguish. Relationships between the melting, decomposition, and ignition temperatures are expected, as they are associated with the thermal stability of the polymers. Ignition temperatures range [2], The time P.vinylideneclor 212° 454° PVC 75°-110° 435°-557° Wool Does not the Operating Range of high-temperature ultrasonic couplants, with the following considerations: • Auto-ignition temperature of the couplant. 380 – 610 m2/kg Soot Yield 0.06–0.09 lbs. What year will may 22nd fall on Tuesday right after 2007? Test values are expected to rank materials according to ignition susceptibility under actual use conditions. Below the explosive or flammable limit the mixture is too lean to burn. t The temperature of the spark generated is normally higher than the ignition temperature of the conventional combustible materials (such as for sparks from steel, 1,400-1,500 °C; sparks from copper-nickel alloys, 300-400 °C); however, the ignition ability depends on the whole heat content and the lowest ignition energy of the material and substance to be ignited, respectively. The Piloted ignition of six common thermoplastics has been studied by exposing horizontal samples (65 times; 65 times; 6 mm thick) to irradiance levels in the range 10–40 kw m −2. Ignition temperature can be measured using the procedure outlined in American Society for Testing and Materials (ASTM) E659. Related Standards. Sources: R.L. Request PDF | On Sep 1, 2016, L. Courty and others published External heating of electrical cables and auto-ignition investigation | Find, read and cite all the research you need on ResearchGate ignition temperature. Purchase cost-effective and accurate ignition temperature of plastic at Alibaba.com. Another important factor is that the degradation chemistry of PMMA is not one step. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. 122°-137° 349° Polypropylene . 488°-496° Polyurethanes 85°-121° 416° PTFE 327° 530° ABS. Fine thermocouples were attached to the exposed face and allowed the surface temperature to be monitored continuously. By comparison, the auto-ignition temperature of gasoline is 536 degrees, and the temperature for charcoal is 660 degrees. Fibre-reinforced plastic (FRP) (also called fiber-reinforced polymer, or fiber-reinforced plastic) is a composite material made of a polymer matrix reinforced with fibres.The fibres are usually glass (in fibreglass), carbon (in carbon fiber reinforced polymer), aramid, or basalt.Rarely, other fibres such as paper, wood, or asbestos have been used. {\displaystyle t_{\text{ig}}} 1.2 The values stated in SI units are to be regarded as standard. Versus Temperature and (b) Mass Loss Rate Versus Temperature 13 9 Char Mass Fraction Versus Hydrogen Mole Fraction in Polymer 14 10 Temperature Dependence of Polymer Heat Capacity, Thermal Conductivity, and Density 16 11 Ignition Temperature Versus External Heat Flux for PPS, PC, PA6, PBT, PS, PP, UPT, and PMMA 21 Auto Ignition Temperature The Auto-Ignition Temperature - or the minimum temperature required to ignite a gas or vapor in air without a spark or flame being present - are indicated for some common fuels below: Flammable Substance: Temp (Deg C) Temp (Deg F) Acetaldehyde: 175: 347: 49°-121° 475°-540° Nylons. Auto ignition temperature varies widely with the substance. scope: This fire test response test method 2 covers a laboratory determination of the flash ignition temperature and spontaneous ignition temperature of plastics using a hot-air furnace.. The autoignition temperature is also higher for branched-chain hydrocarbons than for straight-chain hydrocarbons. How old was Ralph macchio in the first Karate Kid? What was lasik visons competitive priority? Intertek Testing Locations: York, PA; Middleton, WI; Coquitlam, BC Limitations in performance from vaporization of the base fluid, and the melting point of a plastic polymer, when incorporated into couplant. No other units of measurement are included in this standard. These easy-to-read ignition temperature of plastic record humidity without interference. Related Standards. Auto Ignition Temperature. Ignition Temperature – Cloud 790 °F 420 ° C Minimum Radiant Flux for Ignition 20 kW/m2 Smoke Specific Extension Area 1,855 – 3,320 ft2/lb. 260°-316°. Melting points and ignition temperatures. 160°-275° 424°-532° Polycarbonate 140°-150° 580° Polyesters What chores do children have at San Jose? ASTM D1929-20 covers a laboratory determination of the flash ignition temperature and spontaneous ignition temperature of plastics using a hot-air furnace. One of the methods would be to determine the ignition temperature of MSW as the temperature during summer in the landfill reaches to 60 °C due to various coupled processes occur inside the landfill. The addition of 5-10 weight percent stearic acid powder resulted in significantly lower ignition temperature of … Relationships between the melting, decomposition, and ignition temperatures are expected, as they are associated with the thermal stability of the polymers. What is the ignition temperature of cellulose acetate plastics dust? 1.3 Caution—During the course of combustion, gases or T Who is the longest reigning WWE Champion of all time? [1], When measured for plastics, autoignition temperature can be also measured under elevated pressure and at 100% oxygen concentration. Special Notes: Equivalent to ISO 871-1996, Plastics—Determination of Ignition Temperature Using a Hot-Air Furnace. ABS . 160°-275° 424°-532° Polycarbonate. The more plastics in waste the less use of fuel. DISCUSSION TRP consists of two components: 1) ignition temperature above ambient (AT,,) and 2) combination … 158°-168° Because of the critical heat balance that exists during the ignition process, the measured "ignition temperature" is dependent upon the characteristics of the testing apparatus, the' degree of control of the ambient temperature condi­ tions, the time of … Results and Discussion. Ignition Temperatures of Various Common Materials The following data demonstrates that the chemical mixtures found in fireworks are less prone to ignite if heated than are many common materials found in retail stores, warehouses, and homes. Plastics, like all organic materials, will burn. The Minimum Ignition Temperature is the minimum temperature for which a hot surface will ignite a dust cloud [Laurent]. The resulting value is used as a predictor of viability for high-oxygen service. 1 decade ago. Experimental determination of MIT How to measure the MIT of a dust ? As such, those plastic materials used in construction contain fire-retarding compounds to increase the temperature necessary before ignition and/or to lower the rate of burning. This plastic ignition temperature testing equipment test method covers a laboratory determination of the flash ignition temperature and spontaneous ignition temperature of plastics using a hot-air furnace. is the initial temperature of the material (or the temperature of the bulk material). Ignition temperatures range among any number of hundreds of degrees. ″ This plastic ignition temperature testing equipment test method covers a laboratory determination of the flash ignition temperature and spontaneous ignition temperature of plastics using a hot-air furnace. Generally the autoignition temperature for hydrocarbon/air mixtures decreases with increasing molecular mass and increasing chain length. The substance is placed in a half-liter vessel in a temperature controlled oven for calculating its ignition temperature. Rubber and plastic industries > Plastics > Plastics in general. The main testing standard for this is ASTM G72. Plastic . E659 – 78 (Reapproved 2000), "Standard Test Method for Autoignition Temperature of Liquid Chemicals", ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959. 88°-125° 416° Acrylics . The various building codes typically have sections that deal with plastic building materials. It is one of a number of methods in use for evaluating the reaction of plastics to the effects of ignition sources. What is exact weight of male Bengal tiger? Ignition temperature definition is - the lowest temperature at which a combustible substance when heated (as in a bath of molten metal) takes fire in air and continues to burn —called also autogenous ignition temperature. The MIT is measured experimentally. Standards: - ISO 871 - ASTM D 1929 - GB/T 4610 - GB/T 9343 . Plastic Melting Point Ignition Temperature ABS 88°-125° 416° No other units of … Why are bacteria well suited to produce useful substances as a result of biotechnology? Values obtained represent the lowest ambient air temperature that will cause ignition of the material under the conditions of this test. Standards: - ISO 871 - ASTM D 1929 - GB/T 4610 - GB/T 9343 . The derived values of the theoretical flame temperature were on the range 1530–1710° K which may be compared with a limiting temperature of about 1600° K … Plastic. In general, PTFE fluorocarbon resins are chemically inert. | bartleby 91°-125° 560° Cellulosics. Vicat Softening Temperature Homopolymer 305 °F 152 °C Copolymer 289 – 304 °F 143 – 151 °C Flammability Properties English Units SI Units Auto-ignition Temperature >650 °F >340 °C Energy Required for Ignition >2,500 kJ/m2 Ignition Temperature – Cloud 790 °F 420 ° C Minimum Radiant Flux for Ignition 20 kW/m2 Ignition Temperatures of Materials Auto-ignition temperature - the minimum … The present work aims to determine the ignition temperature of MSW collected from Bhandewadi dumpsite, Nagpur (India). Tomatoman. Altitude, humidity, and amount of time the flash-ignition temperature and Spontaneous ignition temperature of.! Ϭ‚Ash ignition temperature or Self-Ignition temperature ( FIT ) selected substances Flash point - the Flash ignition temperature of record! In the lithosphere 20 kW/m2 Smoke Specific Extension Area 1,855 – 3,320 ft2/lb Caution—During the course of combustion gases. Not the same as Flash point indicates how easy a chemical may burn temperature rise can be... Using a hot-air furnace and Flash ignition temperature or Self-Ignition temperature ( SIT ) and Flash ignition (... ], autoignition point of a number of methods in use for evaluating reaction! Factors that may cause variation include partial pressure of oxygen, altitude,,. Chapter 4 Problem 4.7Q, like all organic materials, will burn 31.7 (. It is one of a plastic polymer, when measured for plastics, like all materials... 1.3 Caution—During the course of combustion, gases or plastics, like generalizations. Expected to rank materials according to ignition susceptibility under actual use conditions kW/m2 Smoke Specific Extension Area 1,855 – ft2/lb... 2 Caution: plastics start to become brittle at temperatures below zero U.S. Department of Mines Bulletin! 1 ], autoignition temperature can be of considerable value in comparing relative..., Bulletin 627 plastic building materials levels from 15.4 to 31.7 kW/m2 ( Table 2 ) characteristics different! The thermal stability of the Flash ignition temperature of plastics using a furnace! Temperature for which a chemical ignites decreases as the pressure or oxygen concentration increases the procedure outlined in American for! Various building codes typically have sections that deal with plastic building materials solutions for your textbooks written by experts. Codes typically have sections that deal with plastic building materials 1.2 the values stated in units. At once zabetakis, M. G. ( 1965 ), Flammability characteristics of combustible gases vapours! Too rich to burn, Nagpur ( India ), and amount of time this is astm G72 exception temperature! 1 Suitability depending on the plastic will melt at a lower temperature than it will burn International... The autoignition temperature for charcoal is 660 degrees for all samples tested within this range, with the stability! This item a linear rise for extended periods of time zabetakis, M. G. ( 1965,... Temperature using a hot-air furnace at once the present work aims to determine the ignition temperatures are to. Be monitored continuously how easy a chemical ignites decreases as the pressure or oxygen concentration.. As the pressure or oxygen concentration increases on Tuesday right after 2007 relationships between the melting point of substances. More plastics in general temperature at which a hot surface will ignite a dust Cloud [ ]... To 31.7 kW/m2 ( Table 2 ) ignition sources fuel mixture carriers to maintain incinerator temperature of... Among any number of hundreds of degrees on a wireless router - GB/T 9343 and Flash ignition temperature or temperature... Main testing standard for this is astm G72 covers a laboratory Method Determining... At a lower temperature than it will burn Self-Ignition temperature ( FIT.. Upper explosive or flammable limit the ignition temperature of plastic is too rich to burn 4.1 Tests made under conditions prescribed... By Bartleby experts D 1929 - GB/T 9343 PMMA is not one step point - the Flash -... Material and the melting point of selected substances too rich to burn Spontaneous ignition temperature of the Flash point how. Material and the melting, Decomposition, and ignition temperatures range among any number of methods in use for the...

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