#centrifugal tube automatic screen printing machine

[guanshentai]

Automatic screen printing machine for centrifuge tube - matters needing attention when coloring ink

　　The screen printing process of GST centrifugal tube automatic screen printing machine equipment is that the ink passes through part of the mesh of the screen and then leaks on the substrate, and the rest of the mesh of the screen is blocked, and the ink cannot penetrate. The ink is poured on the screen during printing, and the ink will not leak through the mesh to the substrate without external force, but when the scraper scrapes the ink with a certain pressure and inclination angle, it will be transferred through the screen To the following substrates to achieve image replication.

　　Precautions when coloring screen printing ink:

　　1. Adopt the principle of "from light to dark", regardless of the preparation of light-colored or bright colored inks, when the hue is close to the sample, be careful. It is best not to mix inks produced by different manufacturers, try to use inks of different colors from the same manufacturer for color mixing, otherwise uneven color tone will occur, and in severe cases, cohesion will occur and the ink will be scrapped.

　　2. When mixing inks, try to add as few inks of different colors as possible. Generally speaking, the less types of colored inks are used, the better the mixing effect will be.

　　3. Some screen printing inks are dried by drying. Light colors are lighter than undried ones, and dark colors are darker after drying. In addition, whether the color tone of the ink is different before and after drying during printing is a problem that is easily overlooked. Generally speaking, through natural drying (solvent volatile ink), the substrate is plastic, metal, paper, glass, etc., and the color will not change; but if it is a color material for ceramics, the color will not appear until after burning and oxidation. , can only be adjusted by experience. However, for the screen printing inks that are dried by heat-setting and light-setting, the color changes in shades. When the amount of ink adjustment is large, the ink adjustment machine can be used to complete the color adjustment in a short time.

[beitesbiotech-blog]

Portable Canine Progesterone Analyzer

【Brand】 BATERSUARG 【Application】 By judging the content of progesterone in the serum of the bitch, according to the change of the data, Accurately master the breeding time. 【Advantage】 No need to add any buffer, direct detection of serum, easy to operate, no need for professionals.

【Test Method】 1. Take out the reagent card 2. Pipette 80ul of serum drop into the reagent card hole. 3. Insert the reagent card into the reaction plate holder of the fully automatic veterinary progesterone analyzer, make sure the test card is inserted in the correct direction and push it in completely. Click the test button on the instrument screen and the instrument will enter the countdown test. 4. After 15 minutes, the result of the direct display on the display screen of the progesterone analyzer, and it can be printed and archived, the instrument saves the results automatically. 【Configuration】A Progesterone Tester, reagent cards 100 pieces, a centrifuge, blood collection needles and vacuum blood collection tubes 100 sets, a pipette, and some pipette tip. 【After-Sales Service】One year for free and lifelong maintains & technical guidance. BATERSUARG Progesterone Operation Precautions and Data Judgment 1. Draw blood, at least 2-3 ml of venous blood. Too little may cause poor serum centrifugation. 2. Centrifuge, 4000 rpm for 15 minutes, if the separation is not very good, you can continue for five minutes. 3. The serum pipette must be quantified to 80ul. 4. When the pipette is used to extract serum, be sure to press the first gear, and the position with the handle should not be pressed to the end. 5. Drop the serum into the round hole reagent card, wait for the serum to flow into the strip detection area, insert the round hole upwards and forwards into the instrument card slot, and click the test on the machine to enter the self-test mode. 6. Operating environment temperature must be above 22 degrees. 7. If more than two dogs are detected at the same time, the blood can be labeled and the serum is separated at the same time. Add the serum to each reagent card. The first reagent card is inserted into the instrument card slot, and click the test, the instrument automatically enters fifteen minutes of detection mode, at the same time the other reagent cards are simultaneously reacted for 15 minutes in the external environment. After the first reagent is output, switch the instrument to the instant test mode, and insert the other reagent cards into the machine to read the results. The 15-minute test results will prevail.

[the-fitsquad]

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These contain AutoLISP , Visual LISP, and VBA AutoCAD’s license-primarily based API, ObjectARX , can be utilised a C++ class library, which was also the base for goods extending AutoCAD functionality to specific fields, to generate merchandise such as Autodesk Architectural Desktop, AutoCAD Electrical, or third-party AutoCAD based applications. For much less cash you can get a better performing customer card and spend that money on an SSD or ECC board and RAM. Two accessories have been synonymous with the iPad Pro considering that the beginning: the $99 Apple Pencil and the $159 Sensible Keyboard case. Much more than basically fabricating the hyper-real atmosphere, technologies constructs the technicized people that navigate by means of it. Here its image investment pays off enormously: a functional, simplified imagery, as on a computer screen, is the one particular ideal implies to adapt people to the efficient, streamlined technological environment, which demands visually oriented men and women to expand and reticulate, if only for the sheer amount of information to be processed and disseminated.

The dilemma right here is that unless your are familiar with CAD workstations and the specifications of the application that runs on them, it is really simple to make a costly mistake and buy totally the incorrect method. The Santa Clara, Calif.-primarily based organization stated that this new processor will increase workstations by practically two instances in functionality compared to a four year old program. BOXX Technologies higher performance workstation computer systems and rendering systems are obtainable in a number of formats and configurations. The dilemma that many individuals face is just how to go about producing an ergonomic workstation. A desk, chair, personal computer, keyboard and other equipment should be designed ergonomically so that they are in attain and easy to see or use.

The Application Licensing Service reported that the verification could not be carried out. Following having given standing desk a try with cardboard very first, then with a DIY standing desk I constructed (the 1 I utilized for a lot more than two years), I have been given the opportunity to try the FlexiSpot Desktop Workstation 27” In the following, the terms workstation”, FlexiSpot” and standing-desk” will all refer to this solution. Many writing desks are space-effective and come with a hideaway function for folding, a roll prime, or drawers in order to produce a refined, tidy look when not in use. Some Workstations may possibly feature dual CPUs to enhance their processing capabilities. Mobile Battery-Powered Warehouse Laptop Workstation Carts Are Mobile Workstations For Inventory Handle, Labeling And Printing Places, Point-Of-Service Operations And More.

Intel also claims the stacked memory is five instances a lot more power efficient and three instances denser than GDDR5, which is employed on graphics cards. Pc-over-IP hardware-based compression transfers only the rendered graphics pixel information more than the network, ensuring a quick and responsive remote experience. Duty mobile apps development offers the laptop operator introduction to the tools of the employment, empowering him to create the encryption quicker, test it, and later on arrange the mobile application for positive mobile headphones and their functioning systems. Yet another benefit is guests can appear at their folios at any time throughout their keep. HP has produced some bold statements about power, claiming that on average its new workstations consume 35 % significantly less power than similarly configured machines in its previous generation.

Combine CAM powered by HSMWorks and Inventor 3D CAD software program in 1 integrated resolution. Also in the model space was a G Scale train by Dennis Lenz that featured a Hartland four-four- pulling six vehicles, five had been USMRR flats with a Union Artillery battery, and forge, although the sixth was a combination freight auto (the latter was lettered for the Manassass Gap RR). As the frame passes, if a workstation needs to transmit data, it modifies the frame, attaches its information and sends it on. If the data is intended for the next workstation on the network, it receives the information and the details stops at that workstation. Every single DDR3 module is made to operate at 1866MHz and will give every of our Xeon E5-2670 processors with quad-channel memory.

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In reality, the faster memory is most likely the Z820’s largest improvement in terms of raw overall performance. I will take some time to Google these about (Spending much more time on WC study then Air appropriate now, frankly), but let me ask you what I asked lowfat if you had to AirC dual Xeon’s, what would you advocate? Firstly, Alienware machines are always stunning laptops secondly, this machine has some wonderful all round elements that perform nicely as a mobile workstation. By operating with our customers we are capable to provide deliver and set up new and utilised workstations, workstation accessories, screens, seating, mobile storage units, operate benches and racking systems to suit our client’s certain needs. Based on this testing, we have come up with our own list of advised hardware for AutoCAD.

As with most desktop PCs, you will want to supply your own monitor, but HP does offer an optional mounting bracket ($27, part number N6N00AT) that lets you hide the compact workstation behind a monitor, and one more VESA-compatible sleeve ($45, part quantity Y7B61AT) for mounting the workstation behind a monitor or under a desk. Presently, when most computer software developers mention a certain graphics card, it is meant much more as a suggestion than a requirement. I am not sure what you have been speaking about, but I was talking about software program engineers, the folks who write computer software and require the horse power of a mobile workstation to run contemporary compilers and simulate computer networks to test how their computer software behaves in our connected planet.

To encourage productive and secure usage, all PAW users should be also be encouraged to provide feedback to boost the PAW experience and this feedback need to be reviewed cautiously for integration with your PAW system. To reduce attainable router issues I connect my Comcast SB5120 cable modem directly to my machine (both are windows 7×64, one property one pro). We enthusiasts may boast about Core X-Series processors from Intel or Ryzen Threadripper chips from AMD but for the specialist workstation market, Intel’s Xeon family members of products have been laying waste to the competitors for years. If you can see the screen flickering out of the corner of your eye you ought to try rising the refresh rate of your monitor (with a Computer you can alter monitor resolution and refresh prices making use of the Monitor control panel in your Settings folder with a Mac you can use the Monitor control panel).

PW will be interested to see the maximum quantity of cores per CPU which is important to pack as much energy as possible into a workstation for simulation, rendering and video particular effects. For current generation CPUs, the fastest CPU for general AutoCAD use is the Intel Core i7 6700K which operates with a base clock of four. GHz and a maximum Turbo Enhance clock of four.2 GHz. The Software program Licensing Service reported that the license is not installed. Devices on the network that want to share resources or details and the medium which allows the communication to happen. The added speed of a “actual” desktop Pc will pay off if you ever have to recalculate a spreadsheet in the ten minutes just before the client arrives, or rapidly retouch a photo or document layout.

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Liquor Amendment Act: This law removed all restrictions on the acquire of alcohol by Colored men and women and Asians for off-consumption, and it gave power to holders of off-consumption licenses to sell liquor to any African aged eighteen or older. The new workstations function the latest eight-core Intel Xeon processor E5-2600 product household, provide up to 512GB of DDR3 memory and are independent application vendor (ISV)-certified for the design, engineering and evaluation applications upon which our readers rely. For these craving even fewer decibels, a liquid cooling selection will be obtainable quickly and new Intel solid state challenging drives, which not only run quieter than conventional physical drives, but consume much less power and create significantly less heat, will also be introduced.

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All it requires is a team of skilled graphic designers and potent workstations to render the scenes. Our devoted workstation specialists devote up to 30 hours ensuring that each ISV application profile gets the best performance out of your Precision Workstation. They function at the MAC (Media Access Control) level and move the data over the cables primarily based on the physical address on every NIC (Network Interface Card). Parallels (optional & added licensing cost) – Note: If feel you must have the Parallels software to run Windows based applications, you should reconsider your selection of a Mac device. Any organization can invest in superior quality global workplace furnishings to accomplish a classy, skilled and fashionable appear, which offers employees with the ultimate comfort to carry out their daily tasks.

Abstract : We investigate the prospective advantages of actuated devices for the desktop workstation which remains the most employed atmosphere for day-to-day workplace performs. Although you would not generally play 3D games on a workstation, some game designers may possibly want the ability to test code in progress. In the VMware Workstation console, from the VM menu, pick Snapshot > Take a Snapshot to produce a snapshot of the virtual machine’s state. Dell’s tablet will empower a a lot more mobile workforce in a way that offers clients the company applications and corporate information they need to have, although meeting regulatory mandates and IT requirements. Workstation customers on the other hand, are frequently scientists, engineers, architects and digital media content material creators whose perform requires considerably more computing energy than the typical small organization laptop user would ever want.

The Computer software Licensing Service reported that the Retailer upgrade license is not enabled for the current OS edition. Instead of selecting common partitioning configurations, it pays to seek advice from with the wants of your employees to design workstations that fit your firm. • Survey front office equipment and voucher and folio racks for unposted charges. No matter whether you use Autodesk Revit or 3ds Max for modeling, V-Ray or Iray for rendering, SOLIDWORKS for simulation, or any other sophisticated computing software program, one of our professionals can walk you through the whole method, answer queries about your specific workflow, and address all those pesky discomfort points that expense you time and cash. If you are searching to save space in your office, school or instruction centre and call for ICT desks for your staff or pupils, appear no additional than a Compu-Desk from the joinery specialists right here at Folio.

The new chips also allow assistance for 1,866MHz ECC RAM, up from 1,600MHz RAM supported by the previous generation of Xeon E5-2600s – so your applications with be able to work with not too long ago accessed or developed data more quickly (as properly as RAM previews in Following Effects ). If your first thought is, “I cannot afford a decorator,” interior design and style workplace furnishings companies in chennai then this is for you. Drafting chairs are essentially office chairs with foot rings and an extended cylinder that are especially designed for extended height desks. For inventive professionals utilizing creative software program applications like Adobe Inventive Cloud, Revit, SketchUp and other people, BOXX workstations are designed particularly to eliminate these creativity bottlenecks.

Even so, conventional workstations and PCs continue to drop in cost, which tends to undercut the market for merchandise of this variety. Our CAD Workstations are assembled with the most recent Intel processors for intense rendering. Virtual machines can be encrypted and password-protected to ensure only authorized customers have access. At we have a wide selection of laptop desks and office desks to suit every single require. Anyway, about the guy giving you a difficult time with his ignorance about how all workstations are supposed to run open supply OSs: Software engineers aren’t truly in require of mobile workstations, unless they are functioning on computer software that recreates a 3D atmosphere (or 2D CAD files with a lot of entities). Engineering IT gives user help services are focused on supporting people in their roles as faculty, staff, and students.

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[guanshentai]

​Comparison of automatic screen printing machine and semi-automatic screen printing machine

　　According to GST centrifugal tube automatic screen printing machine equipment manufacturers understand that the current market demand for printing equipment has become increasingly high. In the high demand for aesthetics, people no longer just stay on the visual side of the graphic outer packaging on products, the sense of touch can no longer be ignored. This has also led to the mass production of screen printing equipment.

　　Even if the screen printing machine stands out among the many printing machines, the challenge of choosing one is still inevitable. By substrate shape to choose, you can quickly understand what you want is a flat screen printing machine or curved screen printing machine, after all, this point is directly related to the equipment is applicable; but according to the degree of intelligence to choose, the manufacturer began to become entangled. Manual screen printing machines are cheap but less accurate and relatively complex to operate, and seem only suitable for their own occasional entertainment, not for commercial use. Then what remains is for the choice between semi-automatic screen printing machine and automatic screen printing machine.

　　Semi-automatic screen printing machine is the use of human-machine combination, the need for manual loading and unloading, the operating workers need to always keep the work state can not be slack, and operation is more familiar, otherwise its printing speed will be greatly reduced because of artificial reasons, and then is a semi-automatic screen printing is a single single screen printing, substrate pick-up placement problem is also a major factor to consider, after all, this is also directly related to time, efficiency, and finally is a semi-automatic Screen printing machine hand printing table pressure is manually controlled, large areas, high demand for colour pressure is not uniform, easy to produce colour differences.

　　Automatic screen printing machine relative to semi-automatic screen printing machine price is higher, the equipment size is larger, covers an area of wider. But its function is perfect, set automatic loading, electrostatic dust removal, surface treatment, printing, UV drying, automatic unloading all functions. The vacuum adsorption method for the material, to ensure that the product alignment is accurate, to step forward and backward positioning, to ensure the same series of products printing position remains unchanged, the operation has a high-speed and stable characteristics. Automatic screen printing machine operation does not require too much manual, has been approved to operate more than one, and easy and simple, only need to advance the whole batch of substrates placed on top of the loading device, press the button to wait for the machine automatically screen printing, without any operation in the middle, printing efficiency will not be affected by manual proficiency too much.

　　But in fact, the choice of semi-automatic screen printing machine and automatic screen printing machine not only depends on these, need to take into account a variety of factors. For example, there are certain requirements for precision but not high requirements, flat screen printing when the semi-automatic automatic screen printing machine can meet, but the surface screen printing is a semi-automatic screen printing machine precision may be a little difficult to control. Furthermore, the cost calculation, semi-automatic screen printing machine needs to incorporate a large number of labour costs, the need to consider the training of new staff proficiency after the departure of staff. There is also the printing accuracy check, semi-automatic screen printing machine check accuracy may be slower, automatic screen printing machine printing defects are generally very few, check may also be faster.

[guanshentai]

Precautions for stretching the screen of the centrifugal tube automatic screen printing machine

　　The screen printing process of GST centrifugal tube automatic screen printing machine equipment is that the ink passes through part of the mesh of the screen and then leaks on the substrate, and the rest of the mesh of the screen is blocked, and the ink cannot penetrate. The ink is poured on the screen during printing, and the ink will not leak through the mesh to the substrate without external force, but when the scraper scrapes the ink with a certain pressure and inclination angle, it will be transferred through the screen To the following substrates to achieve image replication.

　　Precautions for silk screen stretching:

　　1. Related parameters

　　In screen printing machine printing, the mesh size, wire diameter, screen weaving method and selected material directly affect the tension of the stretched net. When stretching the net, the tension of the screen is measured according to these parameters. When measuring the tension, the detected tension point should be 10 cm away from the inner edge of the screen frame, otherwise the measured tension is inaccurate.

　　2. Tension value

　　The maximum tension value referred to by the tension is the display of the specific mesh strength, that is, the maximum tension value that various meshes and different wire diameters can withstand and rebound. If the tension value exceeds a given value, the mesh will lose its elasticity. Become plastic deformation, which should be paid attention to in stretching.

　　3. Warp and weft tension

　　The unit of tension: Newton/centimeter (N/CM), which can be measured with a Newton tensiometer. The tensiometer can measure the warp and weft tension. The so-called warp tension of the screen is the tension in the winding direction of the whole roll of screen, that is, the tension in the printing direction along the edge; the weft tension of the screen is the tension in the width direction of the screen.

　　4. Screen material and diameter

　　The same material produces different wire diameters and different meshes, and its tension is different, that is, the same mesh mesh, its tension is different, that is, the same mesh mesh, the mesh diameter Different, the tension is different, because the degree of tension is proportional to the diameter of the mesh.

[guanshentai]

Centrifuge tube automatic screen printing machine - how to identify a good centrifuge tube

　　GST centrifugal tube automatic screen printing machine manufacturers, for the classification of centrifugal tube, can be based on its material properties for general distinction, so that the centrifugal tube can be distinguished into two major categories of glass centrifugal tube and plastic centrifugal tube. Centrifuge tubes made of plastic can be subdivided into PP, PC, PS, etc. Depending on the needs, manufacturers will choose different plastic materials to produce.

　　The most familiar and most frequently used consumables in modern laboratories are probably those of tubing, such as centrifuge tubes. Centrifuge tubes, as the name suggests, are mainly used with centrifuges and are an inevitable consumable.

　　They are classified by material: plastic, glass and stainless steel centrifuge tubes. The common laboratory centrifuge tubes are plastic and glass, generally plastic tubes are used more, because the glass centrifuge tubes can not be used in high-speed or ultra-high-speed centrifuge. Plastic centrifuge tubes are made of PP (polypropylene), PC (polycarbonate), PE (polyethylene), etc. The performance of PP tubes is relatively good. Plastic centrifuge tubes are transparent or semi-transparent, allowing visualization of the sample centrifugation, but they are more easily deformed and less resistant to the corrosiveness of organic solvents, so their service life is shorter. Therefore, laboratories generally often buy centrifuge tubes.

　　PP (polypropylene): translucent, chemical and temperature stability is better, but at low temperatures will become brittle, so do not centrifuge at 4 ℃ or below.

　　PC (polycarbonate): better transparency, hardness, can be sterilized at high temperature, but not resistant to strong acids and bases, as well as some organic solvents such as alcohol and so on. Mainly used for ultra-high-speed centrifugation of more than 50,000 rpm.

　　PE (polyethylene): opaque. And acetone, acetic acid, hydrochloric acid, etc. do not react, more stable, easy to become soft at high temperatures.

　　PA (polyamide): this material is a polymer of PP and PE material, translucent, chemically very stable, single not high temperature resistance.

　　PS (polystyrene): transparent, hard, stable to most aqueous solutions, but will be a variety of organic corrosion, mostly used for low-speed centrifugation, and is generally a one-time use.

　　PF (polyfluorine): translucent, can be used at low temperatures, if the experimental environment under -100 ℃ - 140 ℃, you can use this material centrifuge tube.

　　CAB (cellulose butyl acetate): transparent, can be used for more dilute acids, bases, salts, and gradient determination of alcohol and sucrose.

　　Classification by capacity: microcentrifuge tubes, small-capacity centrifuge tubes and large-capacity centrifuge tubes. Generally called centrifuge tubes with a capacity greater than 100mL as centrifuge bottles. According to the size of the capacity of the centrifuge tube to divide, usually, the capacity of the centrifuge tube is divided into 1.5ml, 2ml, 5ml, 10ml, 15ml, 50ml, etc., according to the online survey to understand, as the current domestic centrifuge tube, usually its main on the above specifications. Among the more commonly used is more 10ml and 50ml.

　　Large volume centrifuge tubes (500mL, 250mL), also known as centrifuge bottles, are the centrifugal choice for large volume cell harvesting, pelleting and protein purification;

　　Normal centrifuge tubes (50mL, 15mL), the most common centrifuge tubes used in laboratories;

　　Microcentrifuge tubes (2mL, 1.5mL, 0.65mL, 0.2mL), often used with microcentrifuges for the separation of micro reagents, often used in molecular biology micro manipulation experiments.

　　Other specifications are 30ml, 7ml, etc., mainly adapted to different centrifuges.

　　According to the shape of the bottom classification: according to the shape of the tube can also be divided into round bottom and pointed bottom, as well as the screw cap and insert cap. Screw cap centrifuge tubes have a finer scale, while insert cap tubes have only an overall capacity indication.

　　Round-bottom tubes: When collecting density gradients, choose round-bottom tubes; they have a large bottom area and can withstand greater centrifugal forces than pointed-bottom tubes;

　　Pointed bottom centrifuge tubes: When collecting precipitation with few samples, the pointed bottom is better for separation and the upper layer is easier to aspirate with a pipette.

　　Flat-bottom centrifuge tube: the same purpose as the pointed-bottom centrifuge tube, but the tube can stand up, so it is more convenient to put and take in the experiment. Other flat bottom centrifuge tubes are mostly centrifuge bottles and sample tubes.

　　According to the lid classification: centrifuge tube lid is generally small capacity of centrifuge tubes with lid, while the normal capacity of centrifuge tubes are both with lid, there are also inserted lid and screw cap, 50ml capacity of centrifuge tubes above the basic screw cap is the main. Generally speaking, centrifuge tubes with lids are marked with a scale at the tube wall, while centrifuge tubes with screw caps have a finer scale, and those with insert caps have only a general capacity mark.

　　Classification by application: preparative and analytical centrifuge tubes. There is no strict classification standard, but the preparative type is intended for the separation and purification of biochemical substances, cells, and subcellular particles. The analytical type is more demanding.

　　Classified by speed: low speed centrifuge tubes and high speed centrifuge tubes.

[guanshentai]

Centrifuge Tube Automatic Production Line-Types of Centrifuge Tubes

　　Have you ever noticed the centrifuge tubes for commonly used small appliances? Guanshentai automation equipment centrifuge tube automatic screen printing machine manufacturers help you sort out the classification of different centrifuge tubes, and small centrifuge tubes also have university questions. According to the different materials, it can be generally divided into plastic and glass. Plastic centrifuge tubes are used more, and can be divided into PP, PC, PS, etc. According to different needs, manufacturers will choose different plastic materials for production.

　　1. Classification according to material and usage

　　There are plastic and glass centrifuge tubes commonly used in laboratories. Generally, plastic ones are used more, because glass centrifuge tubes cannot be used in high-speed or ultracentrifuges. Plastic centrifuge tubes are also made of PP (polypropylene), PC (polycarbonate), PE (polyethylene) and other materials. The performance of PP pipes is relatively good. The plastic centrifuge tube is transparent or translucent, which can visually see the centrifugation of the sample, but it is relatively easy to deform, and has poor corrosion resistance to organic solvents, so the service life is short. Therefore, laboratories generally buy centrifuge tubes frequently. The various materials are described below.

　　PP (polypropylene): translucent, good chemical and temperature stability, but it will become brittle at low temperature, so do not be below 4 ℃ during centrifugation.

　　PC (polycarbonate): good transparency, high hardness, can be sterilized at high temperature, but not resistant to strong acid and alkali and some organic solvents such as alcohol. Mainly used for ultracentrifugation above 50,000 rpm.

　　PE (polyethylene): opaque. It does not react with acetone, acetic acid, hydrochloric acid, etc., and is relatively stable, and it is easy to become soft at high temperature.

　　PA (polyamide): This material is a polymer of PP and PE material, translucent, very stable in chemical properties, and not resistant to high temperature.

　　PS (polystyrene): transparent, high hardness, stable to most aqueous solutions, but will be corroded by various organic substances, mostly used for low-speed centrifugation, and generally one-time use.

　　PF (polyfluorine): translucent, can be used at low temperature, if it is an experimental environment at -100℃-140℃, centrifuge tubes of this material can be used.

　　CAB (Cellulose Acetate Butyl): Transparent, can be used for the gradient determination of dilute acids, alkalis, salts, as well as alcohol and sucrose.

　　2. according to the size of the classification

　　According to its size, it can be divided into 1.5mL, 2mL, 5mL, 10mL, 15mL, 50mL, etc. The domestic centrifuge tubes generally have these specifications, and the most used ones are 10mL and 50mL. If your centrifuge is equipped with 30mL or other specifications of centrifuge tubes, it is necessary to consider imported ones. In addition, centrifuge tubes also have round bottoms and sharp bottoms, as well as screw caps and plug caps. The centrifuge tube with screw cap has a finer scale, and the cap has only an overall capacity indication.