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 will be graduated in 2020 Hopefully. 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]
Best energy prices at just energy plans-2020
From your domestic to industrial life, electricity plays a vital role in facilitating you in various, in fact, unlimited ways. It is used for lighting rooms, working fans, and working appliances that help us do daily chores at home. Also, it is the key to our fast lives of today. Yet people face difficulty monitoring or keeping an eye on energy utilization at their homes while they were t work. There is a huge need for a way through which they can remotely control or keep an eye on the energy being utilized in their homes. This would help them to control the surcharges and extra un-necessary energy wastage. But is there any solution to that? Yes, luckily there is. Let us see what it is.
Just Energy Plans:
Just Energy Plans is a Texas-based energy providing platform that provides over 1.5 million customers with the best energy prices and source. What they aim to concern the most is the innovation, stability of services, and value. They only deal with the best services while maintaining the most respect for their valuable customers. So they do with their employees and partners. Their objective is to have them respected equally every time, everywhere by everyone.
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How Business Analysis helps Small Business
Small businesses work with local economies by bringing competition and development to the business sector. Launching a business is a massive success for many entrepreneurs, but it’s the biggest challenge to maintain one. Business Analysts support companies in changing, adapting, and growing to the world’s organizational goals.
Unique challenges of small business
Each business, big or small, is challenged by many standard obstacles. These include recruiting the right people, building a brand, and developing a client base. Here are the five significant challenges for small firms: Customer Dependence, Management of Money, Fatigue, Dependence on founders, and Balancing of Quality & Growth.
Business Analysis – What it means?
The business analysis allows the change in the organizational context through the definition of needs and recommendation of solutions that provide value to its customers.
The most recent version of the instructions extends its scope to cover agile development, business process management, business intelligence, and business architecture beyond business analysis. It includes
- A model concept that integrates ideas and language across disciplines of business analysis
- Restructured areas of knowledge for business analysis at all stages, from small tactical initiatives to drastic changes
- Five aspects covering the essential fields of company analysis and show how to apply knowledge to various situations
- Covering new industry-recognized techniques of business analysis field
- In every field of expertise, updated and revised content is more.
Why business analysis for small businesses?
Business analysis helps all types of small enterprises to leverage and succeed in their operations. Within the framework of the business process, the business analysis process is crucial. The process involves identifying the primary business goals in this phase and gathering as much data and details. This information allows you to compile an overview of the company’s challenges to its objectives. The business analysis contributes to reducing company costs by increasing Return on Investment (ROI) and reducing business costs. A business analyst can benefit a small business owner as much as a large firm.
Challenges of Business Analyst for small businesses
Small business owners may not think a Business Analyst is necessary. Small enterprise owners sometimes overlook a vital part of their success in trying to survive. The business analyst can find out what the business owner can do to expand his business.
The unique challenges of the Business Analyst (BA) in small business:
- Business rules identifying & analyzing: In each company, there are rules of commitment. These are essential for development and growth. The BA is responsible for identifying and analyzing these rules. The role of BA here reduces duplication and leads to improved productivity.
- Conclude process details: After identifying and analyzing the processes, the BA will conclude. This phase may necessitate steps to add or make drastic changes. It gives the company the ability to acquire better results.
- Documentation of process and procedure: The BA records the business procedures and operations. Through this, BA can understand what the company has achieved in the past, successful objectives, and achievements of business goals. Also, BAs document the process of the company.
- Examine process details: The BA examines in detail after documenting the procedures and processes. This phase helps the professionals understand the process and what tasks to do to ensure that the results are excellent.
- Interpret business requirements: The BA also understands the needs of the industry. This phase is essential for the company to know how, when, and where the applicable changes are necessary.
- Map out new process design: Once the interpretations of business requirements get completed, the BA identifies new processes that help the company achieve the best results. It is essential because new and improved process designs that bring key business benefits can satisfy the customers, make more return on investment (ROI), and have the right competitors.
- Facilitate process workshops: The BA provides for process workshops that notify team members and stakeholders about the identified problems so far and the provided solutions. Everyone is ready and happy to work for the company’s development once their buy-in is protected.
Roles & responsibilities of the Business Analyst:
Business analysts should be strong communicators and precise analyzers by collecting, distributing, and managing company data, and business analysts act as linkages between internal departments. The most demanding career/roles and responsibilities are:
- IT Business Analyst: They create a detailed business analysis highlighting problems, opportunities, and solutions for a company.
- Data Scientist: The primary responsibility of a Business Analyst is to interpret data, deliver reports, and make suggestions based on research findings.
- System Analyst: They implement central computer criteria by defining and evaluating system problems and identify application problems by allowing users.
- Business Analyst Manager (BAM): BAM finds ways to boost productivity and lower costs and connect IT and business teams.
- Quantitative Analyst (QA): QAs work on optimal systematic trade strategies with mathematicians, engineers, and physicians.
Top Skills learned in Business Analyst training course:
Anyone who wants to step into a Business analyst profession should first get a Bachelor’s degree in any discipline with at least 50% aggregate marks. One can then take up a masters program in Business Analyst Certification to upskill themselves and make a great start to their career.
The Business Analyst course boosts candidates’ know-how in the latest business analyst tools and techniques, including planning and monitoring, data analysis & statistics, visualizations, Agile Scrum methodologies, and Structured Query Language (SQL) databases. Also, you can gain these skills – business understanding, competitor and market analysis, scope and objectives defining, requirements gathering, documentation analysis, and solution designing, analysis & testing.
The Industrial Policy Resolution (IPR) of 1948 accepted the most important small businesses in the country’s overall industrial development. In achieving the Indian objective of becoming a $5 trillion (~Rs. 32.42 Lac crore) economy by 2025, the small business sector will play a crucial role. The Labour Statistics Bureau estimates that demand for Business Analysts will increase by 14% by 2024. It is one of the higher average percentages of growing specialities. It is the best opportunity to take business analyst training to speed up your career.
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