![]() ![]() Low-carbon chromium stainless steel with a chromium content of more than 14%, chromium stainless steel with a chromium content of 27% and above, and with additional elements such as molybdenum, titanium, niobium, silicon, aluminum, tungsten, and vanadium. Detailed Introduction to Stainless Steel Ferritic steel In addition to the three basic types of stainless steel, it also includes composite stainless steel, such as martensite-ferrite and austenite-ferrite, as well as precipitation-hardening stainless steel, such as martensite-carbide stainless steel. The above classification only considers the matrix structure. Stainless Steel Mechanical PropertiesĬomparison of mechanical properties of stainless steelĬlassification Composition (%) Hardenability Corrosion-resistance Machinability Weldability Magnetism C Cr Ni ferrite 16 7 / Good Good Good / It is also classified based on its metallographic structure, which includes ferrite (F) stainless steel, martensite stainless steel (M), austenitic stainless steel, austenitic-ferritic duplex stainless steel (A-F), austenite-martensite duplex stainless steel (A-M), and precipitation-hardening stainless steel (PH). In terms of functional characteristics, stainless steel can be divided into low-temperature stainless steel, non-magnetic stainless steel, easy-cutting stainless steel, and ultra-plastic stainless steel. The main chemical composition of stainless steel can be divided into several categories, including chromium stainless steel, chromium-nickel stainless steel, chromium-manganese-nitrogen stainless steel, chromium-nickel-molybdenum stainless steel, ultra-low carbon stainless steel, high molybdenum stainless steel, and high-purity stainless steel.Ĭlassification based on steel properties and application includes nitric acid (nitric grade) stainless steel, corrosion-resistant stainless steel, stress stainless steel, high-strength stainless steel, among others. The most commonly used type of precipitation hardened stainless steel, also been called 17-4 There are three commonly used models: 440A, 440B, 440C, and 440F stainless steel (easily processed)īelongs to heat-resistant chromium alloy steel.īelongs to martensite precipitation hardening stainless steel ![]() The most common application of 440 stainless steel is the razor blade. The good forming property, but poor temperature endurance and corrosion resistance. It is also used for surgical cutting tools, which can be very bright.įerritic stainless steel, for the purpose of decorative, for example, car accessories. “Blade grade” martensitic steel, the earliest stainless steel, similar to Brinell high chromium steel. The processing properties of the material are improved by adding sulfur. Martensite stainless steel (high-strength chromium steel), has good wear resistance and poor corrosion resistance. The cheapest model (UK & US), commonly used as a car exhaust pipe, is ferritic stainless steel (chrome steel). ![]() Good heat resistance, weak corrosion resistance, 11% Cr, 8% Ni. In addition to the risk of the corrosion of the weld joint is reduced because of adding the titanium element, the other performance is similar to 304 stainless steel.īelongs to ferrite stainless steel and martensitic stainless steel. SS316 is commonly used in devices for recovering nuclear fuel, and grade 18/10 stainless steel is also often used in this application level. The addition of the molybdenum element gives it a special anti-corrosive structure.ĭue to its better anti-chloride corrosion resistance compared to 304 stainless steel, it is also referred to as “Marine steel.”. It has better temperature resistance than 304 stainless steel.Īfter 304 stainless steel, 316 stainless steel is the second most widely used steel, primarily in the food industry and in surgical equipment. It belongs to the general model, which is 18/8 stainless steel. The 303 stainless steel can be machined more easily than 304 stainless steel by adding a small amount of sulfur and phosphorus. The corrosion resistance is the same as that of 304 stainless steel, however, it has higher strength because of its high carbon content. ![]() The abrasion resistance and fatigue strength are superior to 304 stainless steel. It can also be quickly hardened by machining. It has good malleability and is applied in forming products. You can select the appropriate type of stainless steel based on your specific requirements.Ĭontain chrome, nickel, and manganese, which belongs to austenitic stainless steel.Ĭontain chrome, and nickel, which also belongs to austenitic stainless steel. In terms of cost, 304 stainless steel is significantly less expensive than 316 stainless steel. Presently, the most widely used stainless steels are 304 and 316. ![]()
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![]() ![]() ![]() As a bonus careful swizzling can allow polarity reversal for those rare but annoying devices that buck the ring-negative tip-positive convention. a pair of 100mill header pins on the power recipient end and matching header socket on the power supplying end) along with color coded heat shrink and then encapsulate the whole mess in a larger clear heatshrink tube with internal adhesive. I’ve also been known to chop the plug end off my wall-warts and ubiquitous cheap USB power cables put some other connector pair in the middle (e.g. Posted in hardware Tagged barrel connector, cobbled, function over fashion, function over form, functional, protoboard, solder, ugly Post navigation What’s your barrel connector trick and does it work reliably? The inside is contacted by thick copper wire with a kink to again provide spring action. hack is actually quite respectable! It appears to be a roll of copper (perhaps from tubing?) bent for a bit of spring tension on the outside of the barrel. If you can’t take the easy route of cutting off the connectors, what’s your go-to trick? Alligator clips are a horrid approach, and there aren’t really any clear winners that come to mind. Everyone has a box of old wall warts somewhere, exhibiting a wide range of barrel connector sizes. There is no link, aka screen-capped the image exchange and reminded us on the tip line.Ĭhances are you’ve faced this problem yourself. Necessity birthed the most straightforward solution which did not involve shredding a power adapter’s plug. In one of our Hack Chats, shared a couple of images wherein a barrel connector was needed, but there was no time to wait for one in the mail. Then there are the times where you need to throw scraps of copper at a prototyping board and strangle nine-volts out by any means necessary. A simple device, on a custom circuit board with inexpensive parts that will disrupt the status quo and make you a billion dollars in no time. Sometimes you get an epiphany for a project that will change the world. ![]() ![]() the Redshift query planner has trouble optimizing queries through a view.If you drop the underlying table, and recreate a new table with the same name, your view will still be broken. views reference the internal names of tables and columns, and not what’s visible to the user.Views on Redshift mostly work as other databases with some specific caveats: ORMs have never had good support for maintaining views. We recommend using the id as the sort key and evenly distributing rows across nodes with DISTSTYLE even. With web frameworks like Django and Rails, the standard way to access the database is through an ORM.MySQL has been slow adding standard SQL features and a whole generation of devs have not used anything else. Their data resides in S3, in a directory. A music streaming startup, Sparkify, has grown their user base and song database and want to move their processes and data onto the cloud. Most people are first exposed to databases through a PHP stack, usually paired with MySQL. We will need to load data from S3 to staging tables on Redshift and execute SQL statements that create the analytics tables from these staging tables.Aside, why devs shy away from Viewsįor some reason beyond our comprehension, views have a bad reputation among our colleagues. Materialized Views in Redshift Create a timeseries table to use in the tests: Create different kinds of MVs Check datacoral organize matview-list Check. Another side effect is you could denormalize high normalized schemas so that it’s easier to query. The final reporting queries will be cleaner to read and write. You might have certain nuances of the underlying table which you could mask over when you create the views. The third advantage of views is presenting a consistent interface to the data from an end-user perspective. You can use the Amazon Redshift Create Table command with the following syntax: CREATE TABLE tablename ( columnname1 datatype1, columnname2 datatyp2 ) For example, if you want to create a table named Employees having columns such as employee. Creating the view excluding the sensitive columns (or rows) should be useful in this scenario. It requires users to specify a name for the table and columns, along with their data types. A user might be able to query the view, but not the underlying table. The second advantage of views is that you can assign a different set of permissions to the view. This is pretty effective in the data warehousing case, where the underlying data is only updated periodically like every day. If your query takes a long time to run, a materialized view should act as a cache. In case, the size of the table name exceeds 127 bytes, the table name is truncated. ![]() The table name can occupy a maximum size of up to 127 bytes. SELECT: INSERT INTO newtable SELECT FROM originaltable Again, be careful when doing this to big tables. The parameters involved in the Create External Table command are as follows: Externalschema.tablename represents the name of the table that needs to be created. There are three main advantages to using views:Ī materialized view is physically stored on disk and the underlying table is never touched when the view is queried. CREATE TABLE newtable (LIKE originaltable) This makes the structure of newtable exactly like that of originaltable, but does not copy the data. ![]() ![]() It was announced in March 2009 that the cast of the show had read through an early draft of the script under the working title, "Episode VI: The Great Muppet Caper".
![]() ![]() Method Overloading is used to increase the readability of the program. Q3 What is the difference between Method Overriding and Method Overloading in Java? It contains static constants and abstract methods. In simple words, Interface is a blueprint of the class. finalize(): this method is invoked by garbage collector just before the object is garbage collected. notifyAll(): wakes up all the threads, waiting for this object's monitor. notify(): wakes up the single thread waiting for this object's monitor. wait(): causes the current method to wait until another thread calls notify() or notifyAll() method.į. toString(): this method returns the String representation of the given object.Į. hashCode(): this method returns the hash value of the object.ĭ. ![]() equals(): this method is used to check whether objects are equal.Ĭ. clone(): this method is used to create a clone of the objectī. Q1 List down methods present in the Object class?īelow are the important methods present in the Object class:Ī. Java Interview Questions for 2 to 3 Years Experience Let's dive deep into the interview questions with answers. I have added many links in the article so that it will be helpful for you to get a detailed explanation of the question. I have categorized the interview questions into topics such as the OOPs concept, Collection framework, Exception Handling, String, Serialization, Java Multi-threading, and Coding basic questions. ![]() Relax, the expectation from the 2 to 4 years experienced guy is not the same as for senior java developers. In this post, I will be sharing the most frequently asked java interview questions for 2 to 4 years experienced. ![]() ![]() the menu does not collapse on its own, or when you click anywhere on the right side of the GUI, or when you hit the Escape key.ĪuthPass is available for Windows, Linux, Mac, Android and iOS. There's another issue with the program, when you click on one of the elements on the toolbar, you have to click somewhere inside the left pane or the toolbar to dismiss it, i.e. The password manager does not minimize to the tray. Speaking of which, the program does not support AutoType or AutoFill, there is no browser extension either, so you'll have to manually copy and paste your credentials on the sign in page. if you want something to assist you with AutoType. I'd like to see a portable version of the program.ĪuthPass does not support plugins, which can be a bit of an issue for some users, e.g. But, considering that KeePass uses about 50MB of RAM, AuthPass' does seem to be on the heavier side of resource usage. The password manager uses about 100MB of RAM, which is not exactly a lot for modern computers. The program didn't warn me to save the database when I made some changes and exited it, which is kind of annoying. ![]() That being said, here are some things I didn't like about the program. It is worth noting that AuthPass for Windows and Linux is still in an early phase, they were released a few months ago. ![]() The application supports some basic keyboard shortcuts: Tab for navigating, Ctrl +C, Ctrl + V for copying and pasting the field's contents.ĭrag an entry in the sidebar to the left (like a swipe gesture) to copy the username, drag it to the right to copy the password. Use it to switch between the Light and Dark Theme, adjust the visual density (GUI size) and text scaling. The toolbar's menu button also allows you to access the program's Preferences. AuthPass has a built-in password generator, it has a few toggles to include lowercase, uppercase characters, Umlauts, Numbers, special characters, and the length of the password. The three-dot menu in the toolbar has shortcuts for managing groups, check for updates, lock the database, switch to a different file. Have too many entries? Trouble finding a specific account? Click on the search icon to find what you're looking for, the results are displayed in real-time as you type. The filter icon can be used to toggle deleted entries, and to access the Group tree. The floppy icon appears on the toolbar when there are unsaved changes, click it to save your database. You can select multiple groups or a specific group to list their contents. The Hamburger menu in the top left corner displays the Group tree. To delete an entry, select it and click on three-dot menu in the top right corner and hit the delete option. Click on the save button at the end of the window to preserve your changes. Click on the "Add field" button at the bottom of the window to add one of the following options: Title, Website, User, Password, Time Based One Time Password, or a custom field. ![]() AuthPass can be used to add notes or attach files to saved entries. The present menu item displays a QR code of the selected account. To reveal a protected field, click on it. The "protect value" setting obscures the selected field (like a password box does). You can rename or delete a field, generate strong passwords from the pop-up menu. The copy field option clones the selected field. ![]() All of these fields have a three dot button to the right edge, clicking on which displays a few options. Igniters for mac.The fields on the lower half can be used to view the title of the saved account, the URL it has been associated with, the username, and the password. The Igniter, exclusively for the Mac, is described by Aurora as the 'world's fastest digital video capture card.' In a Power Mac G3 or G4 system, it lets you capture and playback video at 13.3MB. Description: Tenorshare iCareFone Free for Mac is a totally free iOS Tuneup for you.It does an iOS system checker to help you check your device health every day, then speed up your device and apps by free up space on iPhone 7/SE/6s/6/6 Plus/5S/5C/5/4S, it is on free iOS Cleaner that it will help to remove junk files all junk files (temporary files, caches, cookies, offline files, script files. Hi, I happen to have brought an igniter off ebay that claims it is for the Martin Mac 250 Krypton and various other lights now here is were I get c. IGNITOR delivers enriched textbooks from multiple publishers embedded with rich media, interactive quizzes and weblinks. ![]() ![]() ![]() Even the best locks can become stuck, making it difficult to open the door. Keeping the locks in their working order is critical for your home security. Keep Your Locks Working Smoothly: Tips From Locksmiths It’s as simple as adding a little silicone to the car door lock to keep it looking new for years to come. They reduce friction as well as eliminate the need for excessive force when opening the lock. Lubricants prevent dirt, dust, and water from entering the lock and making it much easier to open. You may want to think about using a silicone lubricant in place of the lock for a more long-term solution that will prevent it from sticking. If you only want to rub a small amount of oil on the key, you can insert it in the lock without difficulty. When you need to repair a sticky lock quickly, use olive oil from your pantry as a quick fix. Most of the best padlocks can be disassembled for a more thorough cleaning, but this is only possible if the lock can be opened. This can be sufficient to remove rust that is preventing the lock from opening. Because these locks are exposed to the elements, lubrication and cleaning are critical. A leaking substance can become drips as a result of overspray, and if not dabbed or wiped away, it can fall onto carpets, clothing, doors, and so on. Because graphite is more of an old- school lubricant for door locks, it can be difficult to use. As soon as you apply the alcohol liquid base, the lubricant dries faster. Houdini Lock Lube is a synthetic spray that does not contain graphite, silicon, Teflon, or oil. The WD-40 Dry Lube PTFE Spray outperformed Tri-Flow, a locksmith- recommended door lock lubricant, as a result of its higher performance. ![]() Despite the fact that lubrication is used to clean door locks, it has no effect on all problems. As a result of the damage that locks may sustain, they may require more depth cleaning than a lube. If you do not use door lock lubricant to replace a lock that has become damaged or blocked, it will not function properly. Lubricants can be used for a variety of purposes, so make sure the product you purchase is compatible with the best lubricant for door locks. It is critical to use a product designed to resist rust in order to lubricate outdoor locks. These lubricants repel dust and dirt, preventing your lock from becoming sticky and chalky.Ī malfunctioning lock can be repaired in a matter of minutes by lubricated, which is the most cost-effective and quick fix. What Is The Best Lubricant For Sticky Locks?įor a lock, dry lubricant like Teflon (PTFE) or graphite works well. A good arcadia door lock prevents a sliding glass door from being lifted out of its tracks and prevents little ones from opening it and leaving the house. ACME Locksmith has over 160,000 residential and commercial clients in Arizona. We have many favorite security products, but Door Armor, Door Security, and SkyBell Video Doorbells are among them. locksmiths typically use Teflon (the same non-stick coating found on cookware in a different form), which is used in the majority of locksmith products. The residues in oily residue attract and hold dirt, dust, and other contaminants to the surface. It is not the best choice for lock lubrication if you use WD-40. WD-40 has been available for consumer use for more than a half century. There is a tendency for gunk to accumulate in graphite over time, and oil-based lubricants may collect particles from it. Too many people put too much graphite in their locks, making graphite a good choice for a new lock that has been cleaned or is new. As a result, when you use this type of lubricant to repair a lock, it is likely to last a long time. The reason it is so useful is that it protects your lock from dust and water. The Teflon-based lubricant is preferred by locksmiths over graphite and WD-40. Silvano Accessories AG is dedicated to providing top-notch products to its customers and Houdini Lock Lube is no exception. It can be used on all types of locks, including padlocks, deadbolts, and door locks, and is available in both aerosol and liquid form. Houdini Lock Lube is one of their most popular products, designed to protect locks from corrosion and provide superior lubrication. ![]() They specialize in providing high- performance lubricants and other products designed to keep locks running smoothly and secure. Based in Zurich, Switzerland, Silvano Accessories AG has been manufacturing and distributing a wide range of products for locksmiths, security professionals, and DIYers for over 30 years. ![]() Houdini Lock Lube is a high-quality lubricant made by the Swiss company, Silvano Accessories AG. ![]() ![]() ![]() But, overall the software is easy to use and delivers what it promises. However, if you are a little impatient then you won’t like the Deep scan mode on it as it takes a lot of time to scan the partitions. The system requirements are fewer hence it runs smoothly on a computer of low configuration even. We really enjoyed using the iBoysoft Data Recovery software, its small in size and can be used on any computer be it old or new. However, if you want to recover more data then you can opt-in for any of the three paid editions from Home, Professional, and Technician as per your choice. The iBoysoft Data Recovery software is basically free to use software but you can only recover data up to 1 GB in the free version. And here’s a list of few important features. The iBoysoft Data Recovery is feature-rich software that can match all your data recovery needs. The iBoysoft is a very powerful recovery software and it can not just recover data from the internal storage of your device, but also from external devices like Hard drives, CF cards, memory cards, flash drives, etc. ![]() And on Mac, it supports formats like APFS, encrypted APFS, exFAT, FAT32 HFSX, HFS, and HFS+. For example, on Windows, it supports formats like NTFS4, NTFS5, FAT16, FAT32, and exFAT. It supports almost every format on Windows and Mac. And supports macOS from version 10.7 (Lion) to 10.15(Catalina). The iBoysoft Data Recovery software runs on Windows (XP to Windows 10). Here are the technical aspects of the software you should know before buying it. Fast mode quickly shows the result while the deep mode takes quite a bit time to do that, but it scans the device thoroughly. There are basically two modes of scanning, the fast one and the deep one. It scans the targeted partition, disk or external drive to detect the removed or deleted data and then shows the full list on the screen. This software can recover any type of data be it videos, documents, pictures, and audio. ![]() ![]() Dung beetles are common all over the world, and they get their name because they feast on the waste of other creatures. Considering this, the Dung beetle emerges as the strongest animal, with the ability to lift more than a thousand times its own weight! They utilize their horns to defend themselves from rival Dung beetles, which may be where they gain their formidable strength. Dung Beetle (Highest Strength-to-Weight Ratio) The horned dung beetle can lift 1141 times its weight and commonly rolls dung balls that are 50 times its weight!Įven when compared to larger creatures, some little animals are quite impressive due to their high strength-to-weight ratio. A Polar bear would also have the upper hand against a gorilla if it could use its mass to exert force or toss the ape off balance. The Polar bear is a top predator that lives only above the Arctic Circle and has previously been linked to a few fatal attacks on people.ĭepending on their size, male Polar bears can reach anywhere from 770 to 1,700 pounds and are as tall as 7.8 feet while standing on their hind legs! With just its jaws, a Polar bear might kill a gorilla. ![]() The polar bear would almost certainly kill the gorilla if the two ever met. ![]() Polar Bear (Strongest Land-Based Carnivore) Polar Bears are the most deadly bears in the world, more powerful than a Grizzly!ĭue to the Polar bear’s superior size and strength, it is the world’s largest and most powerful land carnivore. This crocodile can reach up to 23 feet long and has a biting force of 3,700 PSI! These terrible killers can weigh more than a ton and are even deadlier than sharks, including the Great White! 3. In fact, Saltwater crocodiles are responsible for up to 1,000 annual human fatalities. They have the strongest bite of any animal and are one of the world’s deadliest creatures. The biggest of the crocodilian species, Saltwater crocodiles, or Crocodylus porosus, can weigh up to 1,000 pounds. Saltwater Crocodile (Strongest Bite Force) Saltwater crocodiles are the largest crocodile species and also the largest living reptile in the world. Not only are they the largest land animals, reaching up to 4.5 meters in height and 12 tons in weight, but their trunks include 40,000 tendons and muscles and can carry over 660 lbs., or 300 kg! This makes them the strongest animal on earth! In addition to their massive size, African bush elephants remain infamous for their impressively long tusks, which may reach lengths of more than 2 meters and are utilized for excavating, fending off predators, and settling territorial disputes. African Bush Elephant (Strongest Overall) African elephants are the biggest animals that walk the earth at present.Īfrican bush elephants can lift 1,300 lbs., or 9,000 kg. This article will focus on several factors, such as strength-to-weight ratio, bite force, grip, and overall power! 1. So, how does the strength of a Silverback Gorilla stack up against the rest of the animal kingdom? Below we will be exploring 5 absurdly strong animals more powerful than a silverback gorilla! Strength can be quantified in various ways, and this generalization holds true throughout the animal kingdom. One gorilla was able to hoist up to 1800 pounds, according to the Guinness Book of World Records. On the bench press, a Silverback gorilla could indeed bench press 4,000 pounds, whereas a highly trained human male has a maximum of 885 pounds. ![]() What’s more, they’re even more formidable in terms of raw strength!Ī gorilla’s strength is roughly ten times its weight, and the combined strength of just two mature silverbacks is greater than that of twenty human beings. The mountain gorilla can bite with 1300 psi of force, giving it a weapon it can keep hidden until needed. You would think of a gorilla’s strength in terms of its ability to lift or move, but these rainforest giants also boast one of the strongest bites in the world. The strength-to-weight ratio of Silverback gorillas is among the highest of any living animal. ![]() Males of the Mountain gorilla species that have reached maturity are called silverbacks. ↓ Continue Reading To See This Amazing Video ![]() ![]() Similarly, no auxiliary aid or service will be provided that would fundamentally alter the examination.Ĭonfidentiality: NBSTSA strictly adheres to a policy of confidentiality and does not disclose names of applicants with disabilities or information concerning the application or accompanying documentation. In no case will accommodations be provided which would compromise the examination’s ability to test accurately the skills and knowledge it professes to measure. NBSTSA will provide, without cost to the candidate, reasonable accommodations designed to facilitate equal access to its certifying examination for those candidates whose documentation supports such a determination. Documentation also allows NBSTSA to provide appropriate accommodations for such a disability. Comprehensive information by a qualified professional is necessary to allow NBSTSA to understand the nature and extent of the applicant’s disability and the resulting functional impairment that limits access to its examinations. The purpose of documentation is to validate that an applicant for test accommodations is covered under the ADAAA as a disabled individual. Functional limitation refers to the aspects of a disability that interfere with an individual’s ability to function that is, what someone cannot do on a regular and continuing basis as a result of the disability. Accommodations “match up” with the identified functional limitation so that the area of impairment is relieved with an auxiliary aid or an adjustment to the testing procedure. The purpose of accommodations is to provide equal access to NBSTSA examinations for all individuals. The ADAAA and accompanying regulations define a person with a disability as someone with a physical or mental impairment that substantially limits one or more major life activities such as walking, seeing, hearing or learning. In accordance with the ADAAA, NBSTSA does not discriminate against individuals with disabilities in providing access to its examination program. NBSTSA provides reasonable accommodations in accordance with the Americans with Disabilities Act as amended (ADAAA) for individuals with documented disabilities who demonstrated a need for accommodation(s). Rationale: Individuals who have otherwise met the eligibility requirements should be allowed multiple opportunities to attempt to pass the examination, but limitations on the number of test attempts per year are necessary in order that the candidate will receive a different set of examination questions each time. Candidates are required to pay the total testing fee (processing and examination) each time to test. Retesting - Test FailsĬandidates may not test more than three times during any calendar year. Call us at 80 to find out about previously accredited programs or programs currently undergoing the process to become accredited. *The websites only list currently accredited programs. A copy of your graduation certificate from the surgical technology training program.A copy of your DD214 (must state location of the base where program was completed).Program could have been before, during or after having CAAHEP* accreditation. Transcript (Transcripts do not have to be official however, NBSTSA reserves the right to request an official transcript.)Įligibility Requirements For Graduates of a Military Training Program in Surgical Technology.A notarized letter (on institutional letterhead) from the Program Director which states your name, date of graduation, and type of degree awarded.Program must have been CAAHEP* or ABHES* accredited during your enrollment. For a list of Accrediting Bureau of Health Education Schools (ABHES) approved surgical technology programs go to or call 70.Įligibility Requirements For Graduates of a Surgical Technology Program NBSTSA accepts all properly completed applications from qualified applicants regardless of the applicant’s age, sex, race, religion, marital status, disability or national origin.įor a list of Commission on Accreditation of Allied Health Education Programs (CAAHEP) approved surgical technology programs go to or call 72. NBSTSA does not refund processing fees for ineligible candidates. ![]() The National Board of Surgical Technology and Surgical Assisting (NBSTSA) retains the sole authority to establish eligibility requirements and make all final decisions regarding eligibility.īefore testing, individuals must first establish eligibility by submitting the appropriate examination application form along with the correct fees. 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