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  • Retsch : Home : Descarga : Informes técnicos
    analytics In the beverage industry plastic bottles or rather their performs are analyzed for their acetaldehyde content to prevent any health risk for consumers The acetaldehyde must be extracted from the preforms prior to analysis To ensure correct results the bottles first have to be crushed and homogenized by laboratory mills Care must be taken that the volatile substance acetaldehyde does not escape during the process due to heat build up inside the grinding chamber To preserve the acetaldehyde part of the sample preparation is carried out under cryogenic conditions Emax faster finer cooler The biggest challenge when developing a high energy ball mill is controlling the temperature The very high energy produced by ball milling leads to an extreme heat increase inside the grinding jars RETSCH solved this problem by creating an innovative integrated water cooling system Grinding breaks for cooling which are unavoidable in conventional ball mills even after only 30 minutes grinding at moderate speed are usually not necessary when using the High Energy Ball Mill Emax Cold sticky and tough Cryogenic grinding improves breaking properties Sticky tough or elastic samples are generally difficult to pulverize Cheese for example can be ground with a knife mill but only to a final fineness of about 1 2 mm which is not small enough for most analysis techniques Sweets on the other hand often consist of various components like elastic foamy sugar with a sticky liquid filling If these types of sample are not embrittled before grinding they tend to clog the mill Cryogenic treatment however improves the breaking properties of cheese or candy so that even elastic materials can be successfully pulverized White gold Grinding large sample volumes Rock salt and sea salt not only consist of sodium chloride but may also contain other minerals and silicates depending on the mining area and method To analyze the composition of salt the sample needs to be sufficiently homogenized considering that larger lumps of rock salt are usually very inhomogeneous The element concentrations in salt are usually very low so that it is frequently necessary to process amounts in the kilogram range The Rotor Beater Mill SR 300 easily pulverizes charges of several kilogram and is therefore ideally suited for this application From muesli to streaky bacon Complete homogenization of complex samples The diversity of foodstuffs with their often very different product properties represents a real challenge for food testing laboratories Before the actual analysis the sample materials which can vary strongly with regards to hardness and moisture need to be homogenized and reduced to a sufficiently small particle size RETSCH s GRINDOMIX knife mills are the ideal tools to meet the complex requirements of the sample preparation of food The model GM 200 has proven itself for the homogenization of small sample volumes of up to 700 ml For larger volumes RETSCH offers the GM 300 model with a grinding chamber volume of 5 000 ml Tracing poison Sample preparation for analysis of toxic elements Reports on findings of hazardous substances in food products are nothing unusual these days pesticides in fruit arsenic in rice or toxic plant parts in tea to name but a few Therefore permanent quality control is an indispensable tool of consumer protection Apart from the actual food testing sample preparation by homogenization is essential to obtain reliable results How to minimize standard deviations by correct sample preparation Modern analytical methods increase precision and push detection limits to make even the smallest traces of sample components detectable Despite this development sample preparation which is carried out prior to the actual analysis is frequently neglected Errors caused by lacking accuracy in sample preparation have a much bigger impact than errors made during analysis Just like an iceberg which is mostly hidden under water only a small part of the sum of errors is perceived whereas the major part of potential errors is not taken into account fig 1 One of the reasons may be the fact that sampling and sample preparation have always been done in a traditional way which has become a routine over the years and is no longer considered as having a critical influence on the subsequent analyses What s in the fish Effective size reduction by cutting The homogenization of fish is a challenge scales skin and bones are fairly resistant to size reduction so that the sample still contains some larger pieces after grinding in most mills A high fat content of the fish makes the process even more difficult as fatty particles stick together to form large lumps which block the mill and keep the sample inhomogeneous Ultrafine Grinding with Laboratory Ball Mills How are nano particles produced The Bottom Up method synthesizes particles from atoms or molecules The Top Down method involves reducing the size of larger particles to nanoscale for example with laboratory mills Due to their significantly enlarged surface in relation to the volume small particles are drawn to each other by their electrostatic charges Nano particles are produced by colloidal grinding which involves dispersion of the particles in liquid to neutralize the surface charges Both water and alcohol can be used as dispersion medium depending on the sample material Factors such as energy input and size reduction principle make ball mills the best choice for the production of nanoparticles Toxic substances in our daily life Plastic is an inherent part of our everyday lives it is used in a huge variety of things such as for example packaging furniture clothing or electronic devices Though the utility of the material is undoubted consumers are increasingly unsettled by recurring news about hazardous substances detected in plastics Substances such as plasticizers which are not firmly bound in the material are absorbed via the skin and can influence the hormonal balance Plasticizers contained in food packaging for example penetrate into the food and thus into the human body when the food is eaten Plasticizers in toys are a particularly serious problem children tend to take toys into their mouths thus absorbing the dangerous chemicals Equally hazardous are polycyclic aromatic hydrocarbons PAH The family of PAH comprises more than 100 compounds most of which have been found to be carcinogenic Quality control of coal The influence of sample preparation on elemental analysis results The most common types of coal lignite bituminous and anthracite are distinguished by their different chemical and physical properties The calorific value of coal can be determined by analyzing its carbon content for example with combustion analyzers In addition efficient management of the desulfurization plant requires control of the sulfur content Compared to the large amount of coal a typical laboratory sample consists of a 10 liter bucket or even more the sample volume required for analysis is fairly low only approx 1 g The standard DIN 51701 defines the sample amount to be tested as this relates to the particle size The bigger the particles are the more sample material is required Sample Preparation for HPLC Analysis of Confectionery Like all foodstuff confectionery is subjected to strict quality controls Parameters of interest are for example nutritional value moisture or fat content or the quantification of particular ingredients such as vitamins or alkaloids Typically chromatographic methods like High Performance Liquid Chromatography HPLC are used to analyze food samples Most analytical methods only require a few milligram or gram of sample the previous size reduction homogenization process ensures that the small analysis sample is representative of the entire laboratory sample thus allowing for reproducible results Moreover homogenized samples show a much better extraction behavior Detection of genetically modified organisms GMO in food and feed Genetic engineering opens up new possibilities in areas such as medical research development of alternative fuels or global food supply It is used to modify the characteristics of plants in order to increase the crop yield improve defense against predators pesticides or draught but also increase concentrations of essential vitamins However with regards to food the use of genetic engineering is a fairly controversial issue Moreover food and feed stuff are subject to rigorous quality control processes to prevent humans and animals from potential harm Outdoor clothing Pure nature or traces of poison Outdoor activities such as hiking biking or climbing are very popular As a result the textile industry offers a huge variety of functional outdoor clothing made from synthetic high tech materials which are wind and waterproof as well as breathable In 2013 Greenpeace published a study proving that hazardous substances such as perfluorinated and polyfluorinated chemicals PFC were used in weatherproof clothing as protection against water or dirt This article describes the sample preparation process with cutting mills and cryogenic mills of high tech fibres The effect of grinding tools on metal contamination Reliable and accurate analysis results can only be guaranteed by reproducible sample preparation This consists of transforming a laboratory sample into a representative part sample with homogeneous analytical fineness Retsch offers a comprehensive range of the most modern mills and crushers for coarse fine and ultra fine size reduction of almost any material The product range also comprises a wide choice of grinding tools and accessories which helps to ensure contamination free preparation of a great variety of sample materials The selection of the correct grinding tool depends on the sample material and the subsequent method of analysis Different grinding tools have different characteristics such as required energy input hardness or wear resistance Sample Preparation and Analysis of Arsenic in Rice Considerable care must be taken when analyzing a sample like rice in order to achieve an accurate result The major source of error when analyzing a bulk material comes not from the analytical measurement itself but from the sample handling i e sampling sample division grinding digestion etc Renewable energies on the rise Sample preparation of vegetable based raw materials with laboratory mills Thanks to the increasing usage of biomass as a source of energy the analysis of these materials in the context of R D and quality control gains importance too Due to the complex properties of plant materials adequate sample preparation can be rather a challenge Mechanical Alloying with High Energy Ball Mill Emax Alloys such as amalgam in dental medicine or stainless steel are universally known and used The traditional way to produce alloys is to fuse the components at very high temperatures If only small quantities are required or if the alloys cannot be fused by melting mechanical alloying is an alternative For this application ball mills are ideally suited They provide a high energy input due to the impact and friction effects which occur during grinding Down to the bone Use of laboratory grinders for size reduction of human bones and bioceramics Bone implants and substances for bone regeneration are used in surgery to replace degenerated bone material by implants or to re build it with specific substances The material used in implants varies from autogeneic supplied by the patient through allogeneic supplied by a donor bones to replacement materials such as hydroxylapatite HA and tricalcium phosphate TCP Bovine bones and corals are used in conjunction with synthetically produced foamed materials to form a basis for the regeneration of bone substance Various RETSCH mills are suitable for the preliminary and fine grinding of human bones as well as bioceramic materials Sample preparation of feeds and forage for NIR analysis The feed quality has a decisive influence on the productivity of livestock farming However high quality forage considerably adds to the costs of stock breeding Consequently economic considerations focus on the quality and quantity of the components used in the production process This includes reliable analyses of feedstuff and ingredients from receipt of goods to final inspection as the best way to ensure a balanced feeding of the animals while keeping cost and profit orientation in focus Near Infrared Spectroscopy NIR is the most important analytical method for the determination of protein content moisture fat and ash in feeds and forage The advantage over classical methods such as Kjeldahl is the simultaneous determination of several parameters Moreover NIR spectroscopy is a quick method which requires neither consumables nor reagents Sample Preparation of PET Preforms Sample Preparation in the Pharmaceutical Industry In the analysis of solid material the popular adage that bigger is better certainly does not apply The goal is to produce particles that are sufficiently small to satisfy the requirements of the analysis while ensuring that the final sample accurately represents the original material The particles of interest to the analyst generally range from 10 µm to 2mm Additionally there are many application where even finer sizes are needed One example are active ingredients where it is necessary to grind in the submicron range Finally for DNA or RNA extraction mechanical cell lysis is well established Materials differ widely in their composition and physical properties Hence there are many different grinding principles that can be applied and this together with other variables such as initial feed or lump size fineness needed and amount of sample available results in a wide range of models available to the researcher Recycled glass a valuable resource Today recycled glass is the most important resource for the glass industry The processed glass can be reintroduced to the melting process any number of times and made into new products In Germany currently up to 95 of recycled glass is used for producing glass which has various advantages energy saving less consumption of primary raw materials such as lime and silica sand and the reduction of landfill costs for waste glass Sample preparation for pesticide residue analysis with the QuEChERS method The so called QuEChERS method quick easy cheap effective rugged and safe was developed by Michelangelo Anastassiades Chemical and Veterinary Investigation Office CVUA Stuttgart Germany to make sample preparation to pesticide residue analysis more efficient It basically consists of three steps Homogenization Extraction Analysis Test series have proved that the analysis results obtained with the QuEChERS method can easily compare with more common methods such as DFG S19 Various RETSCH instruments are used for the sample preparation process Representative Sample Preparation to Environmental Analysis The prevention of environmental pollution is a prime issue of today s industrialized societies Important instruments in this context are regular checks using the latest analytical methods Beside air and water analysis the focus is also on environmental remediation and declaration analyses as well as examination of soils construction waste sediments secondary fuels and many more Prevention and ecological recycling and disposal are the key words of a modern environmental policy If the production of waste cannot be prevented the primary objective is its material or energetic recycling Residuals which cannot be recycled have to be disposed of in an ecologically friendly way Representative Analysis Results Require Adequate Sample Preparation A faultless and comparable analysis is closely linked to an accurate sample handling Only a sample representative of the initial material can provide meaningful analysis results Rotating dividers and rotary tube dividers are an important means to ensure the representativeness of a sample and thus the reproducibility of the analysis Correct sample handling consequently minimizes the probability of a production stop due to incorrect analysis results Thus correct sample handling is the key to effective quality control CryoMill Cryogenic grinding was never more convenient or efficient Some sample materials have properties which make size reduction at ambient temperature impossible If for example very elastic materials need to be ground or volatile components have to be preserved for further analysis it is essential to carry out cryogenic grinding The use of liquid nitrogen helps to embrittle the sample thus improving its breaking properties and preventing volatile substances from escaping due to the frictional heat produced by the grinding process Quality control of cement Quality control is an important aspect of cement production Sample preparation is an essential part of it because only a representative and reproducible processing of the sample material ensures reliable and meaningful analysis results RETSCH offers a range of instruments for dividing crushing grinding and sizing all materials which are involved in the production process of cement including secondary fuels To ensure the right choice of instrument for the right sample material Retsch offers free of charge sample testing in application laboratories all over the world Elemental analysers based on combustion technology are a useful addition to XRF analysis for the quality control of cement and related products ensuring fast precise and reliable determination of carbon and sulphur With its offering of analyzers using resistance or induction furnaces or both ELTRA covers a wide range of applications for C and S determination in organic and inorganic samples The product range is ideally suited to the variety of analytical applications in a cement plant Scrap turned into raw materials End of life vehicles re used The EU directive 2000 53 EG stipulates that as of 2015 95 of the weight of a car that has reached the end of its life span have to be recycled The work of ARN is strongly focused on this objective Together with partner companies they make sure that old cars are processed in an environmentally compliant way The recycling chain begins with the companies that dismantle the car and remove raw materials and liquids Waste management companies collect these materials and deliver them to the processing companies who reuse the materials in accordance with high production standards Sample preparation of feeds and forage for NIR analysis Als Standard Analysenmethode für den Gehalt an Protein Fett Kohlenhydrat und Feuchte kommt in der Futtermittelindustrie vor allem die Nah Infrarot NIR Spektroskopie zum Einsatz Der labortechnische Aufwand für die Probenvorbereitung und Messung mit dem NIR Verfahren ist vergleichsweise gering Entsprechend weit verbreitet ist das Prüfverfahren Die empfindliche spektroskopische Technik setzt voraus dass die zu analysierende Probe repräsentativ ist eine ausreichende Analysenfeinheit besitzt und eine möglichst hohe Homogenität aufweist Hierdurch werden Messartefakte verhindert bzw auf ein Minimum reduziert Silicon for solar energy Semiconductors are used for a variety of electronic applications such as integrated circuits microprocessors microcontrollers etc optical detectors and radiation

    Original URL path: http://www.retsch.es/es/descarga/informes-tecnicos/ (2015-09-25)
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  • Retsch : Home : Descarga : Manuales
    Haga una selección pdf Inglés 2 MB pdf Alemán 2 MB pdf Ruso 2 MB pdf Japonés 2 MB Trituración 31 BB 50 Haga una selección pdf Español 2 MB pdf Inglés 2 MB pdf Alemán 2 MB pdf Francés 2 MB pdf Italiano 2 MB pdf Ruso 2 MB pdf Japonés 2 MB DM 400 Haga una selección pdf Español 2 MB pdf Inglés 2 MB pdf Alemán 2 MB pdf Francés 2 MB pdf Italiano 2 MB pdf Ruso 2 MB pdf Chino 2 MB pdf Japonés 2 MB Cryomill Haga una selección pdf Español 2 MB pdf Inglés 2 MB pdf Alemán 3 MB pdf Francés 2 MB pdf Italiano 2 MB pdf Ruso 2 MB pdf Chino 2 MB pdf Japonés 2 MB SM 200 Haga una selección pdf Español 1 MB pdf Inglés 1 MB pdf Alemán 2 MB pdf Francés 1 MB pdf Italiano 2 MB pdf Ruso 2 MB pdf Japonés 2 MB Zyklon SM 200 SM 300 Haga una selección pdf Español 597 KB pdf Inglés 885 KB pdf Alemán 887 KB pdf Francés 917 KB SM 300 Haga una selección pdf Español 1 MB pdf Inglés 1 MB pdf Alemán 2 MB pdf Francés 1 MB pdf Italiano 2 MB pdf Ruso 2 MB pdf Ruso 2 MB pdf Japonés 1 MB Emax Haga una selección pdf Español 3 MB pdf Inglés 3 MB pdf Alemán 3 MB pdf Francés 5 MB pdf Italiano 3 MB pdf Ruso 3 MB pdf Chino 4 MB pdf Japonés 3 MB RS 200 Haga una selección pdf Español 3 MB pdf Inglés 3 MB pdf Alemán 2 MB pdf Francés 3 MB pdf Italiano 3 MB pdf Ruso 3 MB pdf Chino 3 MB manual sk300 20 751 xxxx de pdf Haga una selección pdf Español 2 MB pdf Inglés 2 MB pdf Alemán 2 MB pdf Francés 2 MB pdf Italiano 2 MB pdf Ruso 2 MB pdf Chino 2 MB SR 300 Haga una selección pdf Español 2 MB pdf Inglés 2 MB pdf Alemán 2 MB pdf Francés 2 MB pdf Italiano 2 MB pdf Ruso 2 MB pdf Chino 2 MB GM 300 Index E Haga una selección pdf Español 2 MB pdf Inglés 2 MB pdf Alemán 2 MB pdf Francés 2 MB pdf Italiano 2 MB pdf Ruso 2 MB ZM 200 Index Q Haga una selección pdf Español 1 MB pdf Inglés 1 MB pdf Alemán 1 MB pdf Francés 1 MB pdf Italiano 1 MB pdf Ruso 1 MB McCrone XRD Mill Haga una selección pdf Español 2 MB pdf Inglés 2 MB pdf Alemán 2 MB pdf Francés 2 MB pdf Italiano 2 MB pdf Ruso 2 MB PM 100 PM 100 CM PM 200 Index M Haga una selección pdf Español 2 MB pdf Inglés 2 MB pdf Alemán 3 MB pdf Francés 2 MB pdf Italiano 3 MB pdf Ruso 2 MB pdf Chino 3 MB SM 100 Haga una selección pdf Español

    Original URL path: http://www.retsch.es/es/descarga/manuales/ (2015-09-25)
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  • Retsch : Home : Descarga : Folletos de aplicaciones
    738 KB Preparación de muestras de alimentos y piensos Haga una selección pdf Español 899 KB pdf Inglés 1014 KB pdf Alemán 1021 KB pdf Francés 903 KB pdf Italiano 896 KB pdf Ruso 921 KB pdf Japonés 1 MB pdf Polaco 944 KB Pharma Haga una selección pdf Español 2 MB pdf Inglés 2 MB pdf Alemán 2 MB pdf Ruso 2 MB pdf Japonés 2 MB Suelos Haga una selección pdf Español 577 KB pdf Inglés 564 KB Ball Mills Haga una selección pdf Inglés 904 KB pdf Alemán 897 KB pdf Ruso 906 KB pdf Japonés 944 KB Precious Metals Carbolite Retsch Haga una selección pdf Inglés 763 KB pdf Francés 750 KB pdf Ruso 763 KB pdf Chino 725 KB Steel Carbolite Eltra Retsch Haga una selección pdf Inglés 1 MB pdf Alemán 1 MB pdf Francés 1 MB pdf Ruso 1 MB pdf Chino 796 KB Aerospace Carbolite Eltra Retsch Haga una selección pdf Inglés 957 KB pdf Francés 975 KB pdf Ruso 980 KB pdf Chino 2 MB Biotech Haga una selección pdf Inglés 1 MB pdf Ruso 1 MB pdf Turco 1 MB Cement Carbolite Eltra Retsch Haga una selección pdf Inglés 1 MB pdf Alemán 1 MB pdf Francés 1 MB pdf Italiano 1 MB pdf Ruso 1 MB pdf Japonés 1 MB Coal Carbolite Eltra Retsch Retsch Technology Haga una selección pdf Inglés 1 MB pdf Alemán 1 MB pdf Ruso 1 MB pdf Chino 2 MB pdf Japonés 1 MB Environment Carbolite Eltra Retsch Retsch Technology Haga una selección pdf Inglés 1 MB pdf Alemán 1 MB pdf Francés 1 MB pdf Chino 2 MB pdf Japonés 1 MB Polymers and Plastics Haga una selección pdf Inglés 1 MB pdf Alemán 1 MB pdf Ruso 1 MB pdf Japonés 719

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  • Retsch : Home : Descarga : Informaciones / Otros
    Información técnica 6 FFCS technology Haga una selección pdf Inglés 180 KB pdf Alemán 117 KB RES technology Haga una selección pdf Inglés 102 KB pdf Alemán 108 KB CET Technology Haga una selección pdf Inglés 104 KB pdf Alemán 104 KB Retsch cyclones Haga una selección pdf Inglés 377 KB Info Test Sieve Charge Haga una selección pdf Inglés 30 KB pdf Alemán 31 KB Material Analyses of Equipment

    Original URL path: http://www.retsch.es/es/descarga/informaciones-otros/ (2015-09-25)
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  • Retsch : Trituradoras de mandíbulas : BB 50 : Informaciones & Descarga
    regelmäßige Kontrolle mit modernen analytischen Methoden Neben Luft und Wasseranalytik stehen Altlastensanierungen und Deklarationsanalysen ebenso im Fokus wie die Analytik von Boden Bauschutt Sedimenten Altholz Sekundärbrennstoffen u v m Für nahezu sämtliche chemische und physikalische Analysenmethoden ist es notwendig die Analysenprobe in einem möglichst hohen Grad zu homogenisieren und sie auf eine definierte Feinheit zu zerkleinern Hierbei erstreckt sich die notwendige Probenvorbereitung auf alle Proben der unterschiedlichen Matrizes Die Probenvorbereitung hat somit neben der Probenahme einen entscheidenden Einfluss auf das Analysenendergebnis denn Probenvorbereitungsfehler können das Endergebnis um mehr als 50 beeinflussen Quality control of coal The influence of sample preparation on elemental analysis results The most common types of coal lignite bituminous and anthracite are distinguished by their different chemical and physical properties The calorific value of coal can be determined by analyzing its carbon content for example with combustion analyzers In addition efficient management of the desulfurization plant requires control of the sulfur content Compared to the large amount of coal a typical laboratory sample consists of a 10 liter bucket or even more the sample volume required for analysis is fairly low only approx 1 g The standard DIN 51701 defines the sample amount to be tested as this relates to the particle size The bigger the particles are the more sample material is required The effect of grinding tools on metal contamination Reliable and accurate analysis results can only be guaranteed by reproducible sample preparation This consists of transforming a laboratory sample into a representative part sample with homogeneous analytical fineness Retsch offers a comprehensive range of the most modern mills and crushers for coarse fine and ultra fine size reduction of almost any material The product range also comprises a wide choice of grinding tools and accessories which helps to ensure contamination free preparation of a great variety of sample materials The selection of the correct grinding tool depends on the sample material and the subsequent method of analysis Different grinding tools have different characteristics such as required energy input hardness or wear resistance Down to the bone Use of laboratory grinders for size reduction of human bones and bioceramics Bone implants and substances for bone regeneration are used in surgery to replace degenerated bone material by implants or to re build it with specific substances The material used in implants varies from autogeneic supplied by the patient through allogeneic supplied by a donor bones to replacement materials such as hydroxylapatite HA and tricalcium phosphate TCP Bovine bones and corals are used in conjunction with synthetically produced foamed materials to form a basis for the regeneration of bone substance Various RETSCH mills are suitable for the preliminary and fine grinding of human bones as well as bioceramic materials Recycled glass a valuable resource Today recycled glass is the most important resource for the glass industry The processed glass can be reintroduced to the melting process any number of times and made into new products In Germany currently up to 95 of recycled glass is used for

    Original URL path: http://www.retsch.es/es/productos/molienda/trituradoras-de-mandibulas/bb-50/informaciones-descarga (2015-09-25)
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  • Retsch : Trituradoras de mandíbulas : BB 100 : Informaciones & Descarga
    Zusammenhang ist die regelmäßige Kontrolle mit modernen analytischen Methoden Neben Luft und Wasseranalytik stehen Altlastensanierungen und Deklarationsanalysen ebenso im Fokus wie die Analytik von Boden Bauschutt Sedimenten Altholz Sekundärbrennstoffen u v m Für nahezu sämtliche chemische und physikalische Analysenmethoden ist es notwendig die Analysenprobe in einem möglichst hohen Grad zu homogenisieren und sie auf eine definierte Feinheit zu zerkleinern Hierbei erstreckt sich die notwendige Probenvorbereitung auf alle Proben der unterschiedlichen Matrizes Die Probenvorbereitung hat somit neben der Probenahme einen entscheidenden Einfluss auf das Analysenendergebnis denn Probenvorbereitungsfehler können das Endergebnis um mehr als 50 beeinflussen Quality control of coal The influence of sample preparation on elemental analysis results The most common types of coal lignite bituminous and anthracite are distinguished by their different chemical and physical properties The calorific value of coal can be determined by analyzing its carbon content for example with combustion analyzers In addition efficient management of the desulfurization plant requires control of the sulfur content Compared to the large amount of coal a typical laboratory sample consists of a 10 liter bucket or even more the sample volume required for analysis is fairly low only approx 1 g The standard DIN 51701 defines the sample amount to be tested as this relates to the particle size The bigger the particles are the more sample material is required The effect of grinding tools on metal contamination Reliable and accurate analysis results can only be guaranteed by reproducible sample preparation This consists of transforming a laboratory sample into a representative part sample with homogeneous analytical fineness Retsch offers a comprehensive range of the most modern mills and crushers for coarse fine and ultra fine size reduction of almost any material The product range also comprises a wide choice of grinding tools and accessories which helps to ensure contamination free preparation of a great variety of sample materials The selection of the correct grinding tool depends on the sample material and the subsequent method of analysis Different grinding tools have different characteristics such as required energy input hardness or wear resistance Representative Analysis Results Require Adequate Sample Preparation A faultless and comparable analysis is closely linked to an accurate sample handling Only a sample representative of the initial material can provide meaningful analysis results Rotating dividers and rotary tube dividers are an important means to ensure the representativeness of a sample and thus the reproducibility of the analysis Correct sample handling consequently minimizes the probability of a production stop due to incorrect analysis results Thus correct sample handling is the key to effective quality control Quality control of cement Quality control is an important aspect of cement production Sample preparation is an essential part of it because only a representative and reproducible processing of the sample material ensures reliable and meaningful analysis results RETSCH offers a range of instruments for dividing crushing grinding and sizing all materials which are involved in the production process of cement including secondary fuels To ensure the right choice of instrument for the right sample

    Original URL path: http://www.retsch.es/es/productos/molienda/trituradoras-de-mandibulas/bb-100/informaciones-descarga (2015-09-25)
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  • Retsch : Trituradoras de mandíbulas : BB 200 : Informaciones & Descarga
    en bollas representa un proceso de fragmentación Repräsentative Probenvorbereitung im Umweltlabor Die Vermeidung von Umweltverschmutzung ist eines der zentralen Themen in den Industriegesellschaften des 21 Jahrhunderts Eines der wichtigsten Instrumente in diesem Zusammenhang ist die regelmäßige Kontrolle mit modernen analytischen Methoden Neben Luft und Wasseranalytik stehen Altlastensanierungen und Deklarationsanalysen ebenso im Fokus wie die Analytik von Boden Bauschutt Sedimenten Altholz Sekundärbrennstoffen u v m Für nahezu sämtliche chemische und physikalische Analysenmethoden ist es notwendig die Analysenprobe in einem möglichst hohen Grad zu homogenisieren und sie auf eine definierte Feinheit zu zerkleinern Hierbei erstreckt sich die notwendige Probenvorbereitung auf alle Proben der unterschiedlichen Matrizes Die Probenvorbereitung hat somit neben der Probenahme einen entscheidenden Einfluss auf das Analysenendergebnis denn Probenvorbereitungsfehler können das Endergebnis um mehr als 50 beeinflussen Quality control of coal The influence of sample preparation on elemental analysis results The most common types of coal lignite bituminous and anthracite are distinguished by their different chemical and physical properties The calorific value of coal can be determined by analyzing its carbon content for example with combustion analyzers In addition efficient management of the desulfurization plant requires control of the sulfur content Compared to the large amount of coal a typical laboratory sample consists of a 10 liter bucket or even more the sample volume required for analysis is fairly low only approx 1 g The standard DIN 51701 defines the sample amount to be tested as this relates to the particle size The bigger the particles are the more sample material is required The effect of grinding tools on metal contamination Reliable and accurate analysis results can only be guaranteed by reproducible sample preparation This consists of transforming a laboratory sample into a representative part sample with homogeneous analytical fineness Retsch offers a comprehensive range of the most modern mills and crushers for coarse fine and ultra fine size reduction of almost any material The product range also comprises a wide choice of grinding tools and accessories which helps to ensure contamination free preparation of a great variety of sample materials The selection of the correct grinding tool depends on the sample material and the subsequent method of analysis Different grinding tools have different characteristics such as required energy input hardness or wear resistance Recycled glass a valuable resource Today recycled glass is the most important resource for the glass industry The processed glass can be reintroduced to the melting process any number of times and made into new products In Germany currently up to 95 of recycled glass is used for producing glass which has various advantages energy saving less consumption of primary raw materials such as lime and silica sand and the reduction of landfill costs for waste glass Representative Analysis Results Require Adequate Sample Preparation A faultless and comparable analysis is closely linked to an accurate sample handling Only a sample representative of the initial material can provide meaningful analysis results Rotating dividers and rotary tube dividers are an important means to ensure the representativeness of a sample

    Original URL path: http://www.retsch.es/es/productos/molienda/trituradoras-de-mandibulas/bb-200/informaciones-descarga (2015-09-25)
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  • Retsch : Trituradoras de mandíbulas : BB 300 : Informaciones & Descarga
    pdf Inglés 52 KB Informes técnicos 9 Tan fina como sea necesario Para el análisis de muestras sólidas existe una gran variedad de métodos entre los que pueden mencionarse la AAS ICP NIR y FRX Todos estos métodos tienen algo en común y es que la muestra a analizar deber ser homogeneizada y tener una granulometría determinada que variará en función del método analítico empleado La homogeneización y reducción de la muestra a la granulometría indicada se realiza normalmente con trituradoras y molinos de laboratorio adecuados para cada caso La Fragmentación Por lo general se asocia a la noción fragmentación el machacamiento de sustancias sólidas mediante fuerza mecánica Pero también la división de líquidos en gotas o de gases en bollas representa un proceso de fragmentación Repräsentative Probenvorbereitung im Umweltlabor Die Vermeidung von Umweltverschmutzung ist eines der zentralen Themen in den Industriegesellschaften des 21 Jahrhunderts Eines der wichtigsten Instrumente in diesem Zusammenhang ist die regelmäßige Kontrolle mit modernen analytischen Methoden Neben Luft und Wasseranalytik stehen Altlastensanierungen und Deklarationsanalysen ebenso im Fokus wie die Analytik von Boden Bauschutt Sedimenten Altholz Sekundärbrennstoffen u v m Für nahezu sämtliche chemische und physikalische Analysenmethoden ist es notwendig die Analysenprobe in einem möglichst hohen Grad zu homogenisieren und sie auf eine definierte Feinheit zu zerkleinern Hierbei erstreckt sich die notwendige Probenvorbereitung auf alle Proben der unterschiedlichen Matrizes Die Probenvorbereitung hat somit neben der Probenahme einen entscheidenden Einfluss auf das Analysenendergebnis denn Probenvorbereitungsfehler können das Endergebnis um mehr als 50 beeinflussen Quality control of coal The influence of sample preparation on elemental analysis results The most common types of coal lignite bituminous and anthracite are distinguished by their different chemical and physical properties The calorific value of coal can be determined by analyzing its carbon content for example with combustion analyzers In addition efficient management of the desulfurization plant requires control of the sulfur content Compared to the large amount of coal a typical laboratory sample consists of a 10 liter bucket or even more the sample volume required for analysis is fairly low only approx 1 g The standard DIN 51701 defines the sample amount to be tested as this relates to the particle size The bigger the particles are the more sample material is required The effect of grinding tools on metal contamination Reliable and accurate analysis results can only be guaranteed by reproducible sample preparation This consists of transforming a laboratory sample into a representative part sample with homogeneous analytical fineness Retsch offers a comprehensive range of the most modern mills and crushers for coarse fine and ultra fine size reduction of almost any material The product range also comprises a wide choice of grinding tools and accessories which helps to ensure contamination free preparation of a great variety of sample materials The selection of the correct grinding tool depends on the sample material and the subsequent method of analysis Different grinding tools have different characteristics such as required energy input hardness or wear resistance Representative Analysis Results Require Adequate Sample Preparation A

    Original URL path: http://www.retsch.es/es/productos/molienda/trituradoras-de-mandibulas/bb-300/informaciones-descarga (2015-09-25)
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