When you select a moisture analyzer for a moisture plastic analyzer you will need a model that not only can quickly but also accurately gauge the moisture content of these resins. And as with many quality control requirements that involve moisture content, you’ll want a moisture balance that can meet standards set by trade associations and professional organizations.
In this post you’ll get a briefing on the following:
- why low moisture content is important in plastic resins
- a technical standard that applies to determine moisture in plastics
- how benchtop moisture analyzers work
- a standards-compliant moisture analyzer
for plastic resins
Why Low Moisture Content is Important
Owners of injection molding companies and operators of injection molding machines are aware that incorrect moisture content in plastic resins can result in an inferior finished product.
Product shipped from resin suppliers may have the specified moisture content but ambient conditions at the injection molding facility could raise or lower moisture content before it is placed in the injection molding machine hoppers.
Companies involved in producing quality products by injection molding take steps to ensure proper resin storage. This along with using commercial drying ovens are two important steps in quality control.
Periodic checks with a benchtop moisture analyzer for plastic resins provides assurances that moisture content is on target, or otherwise call for pre-processing adjustments.
A Standard for Determining Moisture in Plastics
The American Society for Testing and Materials (ASTM) has published standard governing testing the moisture content of plastics*. It employs what is called the LOD method, or the loss of weight on drying. This is also described as the thermogravimetric method.
Taken directly from the published standard the test method is summarized here:
“The specimen is spread onto a sample pan that is supported on a balance in a heating chamber that has been preheated and equilibrated to the specified idle temperature. It is then heated to vaporize the moisture. The analysis is completed when the indicated weight loss falls below a rate specified in the test conditions. The total loss of weight is integrated and displayed as the percent of moisture. Both the analyzer’s balance and heater are calibrated to NIST** standards to achieve precise and accurate results.”
How a Benchtop Moisture Analyzer Works
The ASTM standard briefly describes the process. Here is a bit more detail.
A benchtop moisture balance employs a drying process to extract and measure moisture. It combines a precision balance and a heater. In a simple 4-step procedure:
- The drying process parameters are entered on a keypad. These are the drying temperature which may include how the heat is applied (a.k.a. heating profile) and shut-off criteria.
- The sample is placed on a weighing pan located in the drying chamber.
- The drying chamber is closed and the analysis begins.
- The instrument calculates the moisture content by comparing the initial weight of the sample to the weight after drying is complete.
As in the standard, the total loss of weight is integrated and displayed as the percent of moisture.
Halogen quartz glass is generally the source of drying heat. These heaters provide constant even drying of the sample after temperatures are programmed in by the moisture analyzer operator. Temperature is generally maintained within 1⁰C of the selected setting.
While most analyses involve ramping the temperature to a maximum of 160⁰C or less, in special cases higher temperatures may be necessary to achieve complete drying. The analysis automatically terminates either when the dry weight is stable or at a time specified by the operator.
For more detail on how these instruments work please check our post on moisture analyzer questions and answers.
A Moisture Analyzer for Low-Moisture Plastics
A moisture balance complying with ASTM D 6980 – 04 is the DSC 71P available from Tovatech. This model provides precise moisture analysis and is equipped with a default program to test 75% of the most commonly used resins. The DSC 71P is highly recommended for:
- Molders processing a limited number of plastic formulations
- Molder having QC problems related to moisture content
- Molders who need to replace an old moisture analyzer
- Molders adding a new production facility and need another moisture analyzer to support it
It is also an ideal tool to check the moisture content of incoming resins, confirm moisture content before filling hoppers and check the performance of bulk dryers.
The DSC 71P Moisture Analyzer Close-up
Thermogravimetric moisture analyzers such as the DSC 71P calculate moisture content by loss of weight on drying (LOD). This is more environmentally friendly and far less complex than the Karl Fischer moisture analysis requiring a high degree of skill and the use of hazardous chemicals.
Yet due to the very small amounts of moisture that can be tolerated in resins such as the <0.02% for polyethylene terephthalate sensitivity is critical. To address this the DSC 71P has a readout of 0.0001g or 0.001% moisture. The repeatability (standard deviation) is ± 0.01% moisture content for a 10g sample.
Other features include:
- 3 free tech support phone calls for optimizing test procedures
- Custom programming for your resins available prior to shipment
- Short measuring time. Get results quickly with fast and uniform heating
- High repeatability. Superior accuracy even when weighing small samples
- Real-time graphic display. Watch drying take place via a connected PC screen
- Accuracy checks using sodium tartrate dihydrate with its stable moisture content
Simple Resin Moisture Calculation
Once programmed with up to 20 testing procedures all the operator has to do is call up the program for the particular plastic to be analyzed. The unit’s vacuum fluorescent display shows the drying profile (standard, quick, step, or ramp), time, and temperature (30⁰ to 200⁰C in 1⁰ increments) as well as shut-off criteria.
The unit comes with a 9mm (3.5 inches) sample pan, WinCT Moisture software, 30 g sodium tartrate dihydrate for accuracy checks, tweezers, a spoon, a RS 232C cable connection, and the instruction manual. A dot-matrix compact printer is available as an option for record-keeping. Other options include a 50 g calibration weight and a certified temperature calibrator.
A Resin Moisture Analyzer at an Attractive Price
Plastic resin moisture analyzers equipped with large libraries can cost around $10,000 or more depending on features. This is a substantial investment for small to medium-sized injection molding companies. The DSC 71P moisture balance with its broad range of features and outstanding accuracy is available for under $5,000.
Caution should be exercised when looking at lower-cost units because of their inability to deliver the high accuracy and precision needed for quality control when working with low-moisture resins.
Contact the scientists at Tovatech for advice on selecting and using a moisture analyzer to support your injection molding operations.
Arslan Fazal is a student of the Aust Abbottabad University of Science and Technology. He started his graduation in 2016 and graduated in 2020. I’m a professional article and blog writer, has written dozens of content on different topics and worked with professionals all over the globe. Feel free to contact me for any assistance. [email protected]
Lunch Catering Services
Lunch catering is one of the increasing food businesses that give for the necessities of people for elegant meals in the middle of the day. It can provide stress-free lunch, particularly for a group of people on a full day’s meeting and don’t have any time to run out and eat. It is also great when there are particular occasions and gathering is kept at lunchtime which could be the only time possible for busy people to eat.
Types Of Catering Service
There are two main kinds of هوريكا services. The 1st is on-premise. Here, food preparing, cooking, and serving are completed at the same venue where the event will be held. The other kind is the off-premise. Food is made and cooked in another place by the caterer, and it is served according to where the people desire to eat.
Another typology of catering service involves special event catering, business catering, mobile catering, and industrial catering. Unique event catering serves food in large-scale functions. Business catering targets the preparation of food for business meetings, conferences, and practice sessions. On the other hand, Mobile catering is contract-free, and the caterers move from one area to another selling their cooked food. In contrast, industrial catering supplies the everyday meals for academies, hospitals, schools, and all other institutions.
What Caterers Consider
Caterers always anticipate everything from cooking the chosen food during serving and when individuals are already eating. They also get in charge of the table organizations as well as the equipment required for the event. Much care is given to the menu, which is the essential factor in the catering business.
Caterers also think about the style of serving. The technique depends on the variety of meals requested by the customers and the venue where food is served. Lunch catering service as best as catering for another occasion may be in a sit-down style or a counter. The sit-down style is respected when the venue is too short for a significant number of guests. Others would prefer this catering technique as food is served in front of them, and some individuals consider this is classy. However, since there will be servers to attend to the customers and guests, such catering can be slightly more costly.
The buffet technique is recognized when the venue is spacious or when individuals have time to rise and fall in line. In this manner, the guests can pick from a kind of menu on the table, and they will be the ones to decide the amount they can spend. The price of catering using the buffet style is cheaper compared to the sit-down meal.
Catering is a great help for almost all events. It permits for a hassle-free arrangement and presentation of food. It also gives a swift escape from the mess a case may bring, for the caterers are the ones who will pick the venue properly after the event. Busy people in these busy times want their food necessities to play their roles in the school and the other workplace. Lunch catering services reply to this requirement and save everyone from the hassles while enjoying their food with their friends, office mates and classmates, and others.
Escape from Tarkov Bitcoin Farm Tips
Make efficient use of the bitcoin farm
As all EFT players know, the bitcoins Tarkov holds are actually quite rare. Some players might’ve even been playing without encountering one in raids. Aside from their rarity, they’re also quite small and hard to see. At any rate, players now have the chance to farm this rare form of currency in-game. One of the upgrades to the Hideout is a Bitcoin Farm.
How to Make the Bitcoin Farm
Making one requires the following:
- An Electric Drill
- 10 Powercords
- 10 Power Supply Units
- 15 CPU Fans
- At least level 2 Intelligence Center
It will take 30 hours to construct. After that, as long as your generator is active it will produce a physical bitcoin Tarkov every few hours. The amount of time the farm produces a unit of the currency depends on how many Graphics Cards the farm holds. With one GPU, it’ll take 20 hours to get a physical bitcoin.
Upgrades and Time
Upgrading the farm makes more slots to hold more GPUs. At level 2, it can hold 25, and level 3 can hold 50. Going by normal conventions, using more cards makes the production faster. Having 50 cards will produce a bitcoin Tarkov every 5 hours.
Here are the projected times:
10 GPUs – 12 hrs 50 mins
20 GPUs – 9 hrs 15 mins
30 GPUs – 7 hrs 12 mins
40 GPUs – 5 hrs 54 mins
50 GPUs – 5 hrs
As you can see, adding more and more GPUs result in diminishing returns. The difference in production time between 10 and 20 GPUs is about 3 hours, while 20 to 30 is only 2 hours. Plus, how are you even going to find 50 cards to get that 5 hours production time?
In this case, it’s more worth it to keep production at about 20-30 cards. You have to think about the fuel costs as well. The generator has to be running for the Bitcoin Farm to produce bitcoins.
At the most ideal, the Expeditionary Fuel Tank (henceforth called blue fuel) will power the hideout for a day and a half. In contrast, the Metal Fuel Tank (metal fuel) can run the generator for about two and a half days.
Ideal conditions include having a Solar Power Module and the Elite Hideout Management Skill. Both of these increase the time the fuel can power the generator. So, let’s calculate the possible number of bitcoins Tarkov that can be produced with the metal fuel.
10 GPUs: about 5
20 GPUs: about 6
30 GPUs: about 8
40 GPUs: about 10
50 GPUs: about 12
Now, the farm can only hold 3 bitcoins before it stops production. That means you have to pick up the physical bitcoins so it continues production. You can’t expect to have 8 bitcoins waiting for you after leaving it for hours on end.
Supposing you have the recommended 30 GPUs in your Bitcoin Farm. Rounding up the production time to 8, you can be sure to get 3 coins every day (24/8=3). When you’re playing every day, you can get the farm’s maximum number of coins if you leave your generator on. That’s an efficient use of fuel.
Of course, schedules are different for every player. Take someone who can manage to find 50 GPUs and plays for say, 10 hours a day as an example. They can turn off the generator when they’re not playing, and still, get 2 bitcoins Tarkov every day.
For those who want to leave their generators on, it’s better to have a longer production period. Making it too fast will fill the farm’s storage too fast unless you have the opportunity to log in and get it. The point is to adjust the production time with your playing schedule to get the most efficient farm.
To be productive and efficient, it’s not necessary to have the most number of GPUs for your Bitcoin Tarkov Farm. You just need to adjust the production speed to your playing schedule, and not leave the farm’s storage full.
Bitcoins are a big source of euros. It depends on the real-world situation of the currency, but either way, it’s still a valuable resource. Sure, there’s also the regular server wipe to deal with, but you can at least enjoy your riches before it happens. You can use it to trade for useful objects such as weapons, containers (Lucky Scav Junkbox, secure containers), or materials for upgrading your hideout.
So, take advantage of your Hideout’s Bitcoin Farm and create a stockpile of this currency. Enjoy Escape from Tarkov!
Umar Nisar was born and raised in the busy city of Abbottabad. As a journalist, Umar Nisar has contributed to many online publications including PAK Today and the Huffing Post. In regards to academics, Umar Nisar earned a degree in business from the Abbottabad UST, Havelian. Umar Nisar follows the money and covers all aspects of emerging tech here at The Hear Up.
Digital Marketing Training
Digital marketing raises both products and services using digital technologies, like the Internet, mobile phones, and many different digital mediums. Students that finish the course and get certified will have skills learned that help them shape their plan for the competition.
Here are few classes of marketing methods by which promoting takes place – Your website, blog posts, ebooks and white papers, Social media channels (Facebook, LinkedIn, Twitter, Instagram, etc.), Earned online coverage Online brochures, Branding assets like logos, fonts, etc.
Marketing Automation, Email Marketing. The most satisfying part about Digital marketing training is that it can work for any business in any industry. However, marketing still includes building out buyer personas to identify your audience’s demands and creating valuable online content of what companies are selling.
Digital-Marketing training is an “Evergreen” career choice. The marketing technology is constantly growing, hence the need for re-skilling is a must these days. Mix your future with a fantastic digital job.
Since most people start the web using a search engine, knowing how it operates and learning how to make oneself visible through a search engine is supreme. Within search engine marketing, you can create a brand behavior, or make a sale, or get a customer lead that can later stop through direct marketing channels.
Knowing all possible choices for branding and marketing through search engines is sure to be a good promoter for a company.
There are five strategies for search engine marketing.
Search Engine Optimization (SEO)
Contextually Targeted Text Ads
Paid Inclusion and
Digital Asset Optimization
Companies that utilize SEO the highest.
Facebook and other Social Media Marketing
One must understand the complex dynamics of people’s communication on social media. People communicate with a brand while on social media either by seeing an advertisement, a Facebook page, a picture, etc. They comment on the product or share or give feedback to other friends and relatives. Drawing on this social behavior is a part of digital marketing.
They provide a consumer a choice to receive emails about the product, discounts, offers, and events. They must be relevant and interesting and stimulate the consumer to go to the business website or purchase.
Building a website with a logical authority in its navigation based on the website’s goal is an important skill to get. The website can be HTML, PHP, or WordPress, depending on our interests.
Since most of our population gives more time on mobile phones than on desktops and computers, one must read how to adapt ads, webpages, and social media images to the mobile phone.
Many companies have a mobile app for buying a product, and that too drops under the purview of digital marketing.
To be a specialist in digital marketing, one must know how to make together a campaign on all platforms together—learning how to link email to Facebook, Instagram, tweeter and your web page.
Digital Marketing is a large and exciting field that is progressing fast. Companies are forever on a quest to find experienced digital media personnel to help grow their business. This is the only way companies can stay before their competition.
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