Wednesday, March 9, 2016

Brief Knowledge About DIN and ISO

Technical rules and regulations based on specific terms are referred as standardization. These technical rules are used by most of the industries. The DIN (Deutsches Institut für Normung e.V., German Institute for Standardization) is based in Berlin and administers about 29,500 DIN standards. The DIN updates the valid standards and has about 1,745 members relating to the different sectors of industry, science and services. There are more than 26,278 experts work for DIN, and the standards are developed by the working groups. Standards are drafted and availed for all the interested parties which are then published as valid standards.

The international standards are used in place of national standards to abridge the international movements of goods and to eliminate trade barriers. Thus, the quality standard is standardized at a great level for the movement of products in worldwide.

ISO is the "International Organization for Standardization" based in Geneva. The standardization is based on an international level, with more than 157 countries are members of the organization. All work results are published under the name of "ISO".

Many ISO standards are adopted as European standards, and there is acquired as the status of a DIN standard (DIN EN ISO), whereas some ISO standards are directly adopted as DIN standards (DIN ISO).


There are several standards such as ISO for international standard, DIN for German national standard, DIN ISO for German edition of an unaltered ISO standard, EN for European standard, EN ISO for European version of unchanged ISO standard, DIN EN for German edition of a European Standard, and DIN EN ISO for German edition of an EN ISO standard.

Wednesday, January 27, 2016

Test The Resistance Of Polymers To Environmental Stress Cracking

Stress cracking is the major problem that is experienced by polymers when they are subjected to different environmental conditions. The environmental factors like rain, sunlight, air result in the crazing in the polymers and when this get combined with the mechanical stress, the polymers experience cracks on the surface of the material and many similar issues. This is known as environmental stress cracking. It is quite different from the polymer degradation as it does not affect the strength of the polymeric chains. Due to these cracks, the quality of the material gets affected.  Environmental stress cracking is a major issue especially in the case of the amorphous polymers as compared to that of semi-crystalline and crystalline polymers. 

How can the effect of ESC on Polymers be studied?

It is quite impossible to explore the impact of ESC on the polymers by creating different environment but the behavior of the polymers under different environmental conditions can be studied on the basis of the roughness of the surface, molecular structure, chemical bonding, the crystalline structure of the polymers, etc. One of the theories of the environmental stress explains that the liquid in the form of rain or acid on the polymeric material can hamper the quality of the polymers and creates cracks on the facade of the material. The cracking of the material due to environmental stress can be a major threat to safety. Therefore, it is necessary to test the effect of ESC on the polymers before using it for any particular application.

ESCR Tester – To Judge the Effect of Environmental Conditions on Polymers

Presto designs and manufactures premium quality of Environmental Stress Cracking Resistance Tester. The instrument is intended to test the resistance of the polymers to environmental stress cracking by replicating the real environmental conditions. The instrument offers highly accurate test results.

Monday, January 25, 2016

Assure Quality Of Products With Laboratory Testing Equipment

The manufacturers in different production units usually consider material testing as the last step which is irrelevant. The quality testing the essential phase in all production houses that must be commenced from very first stage i.e. raw material inspection till it reaches the hands of the customers because the quality of the manufactured goods depends on the material as well as on the production process. For example, if the quality of the raw material which is used for the production process is not up to the mark, then the quality of the end product will definitely get affected, and the efforts to produce that product will be of no use. This wastes not only the time but also the cost and efforts. Therefore, to ensure the quality of the final good, it is necessary to ensure to commence the quality check process from the initial stage of manufacturing so that the strength, quality and other properties of the products can be determined efficiently.

How to test the quality of the products?

The quality of the products can be tested easily with the help of Laboratory Testing Equipments. These equipments offer the modern way to analyze the mechanical properties, behavior, and quality of the materials. These instruments are used in different production verticals to detect the quality flaws and to enhance the quality of the end products. Therefore, it can be concluded that the lab testing machine plays a significant role to improve the quality of the products. Visit  www.testing-instruments.com/ to check the list of testing machines for different production verticals.


Presto Stantest offers a broad range of laboratory testing equipment for various production verticals. 

Saturday, January 9, 2016

Test The Resistance Of Rubbers To Crack Efficiently

Rubbers are used in numerous applications to produce a different type of rubber products. Rubber components have the ability to bear frequent flexing without initiating the cracks as they are highly elastic in nature. The flexing property of the rubber is quite important to judge mainly when a manufacturer needs to use such kind of products in different circumstances where they have to tolerate continuous flexural forces. The De-Mattia Flex Tester is the best and widely used testing machine which is used to measure the resistance of rubber products to cracks which are initiated on the materials either by bending or by extending the sample under different conditions. The testing device is provided to measure the crack formation in rubber when placed under continuous flexing conditions.

Best Method Introduced by Presto for Rubber Testing

Presto Stantest, a foremost manufacturer of rubber testing machine, offers high quality of De-Mattia Flex tester to test the quality and strength of the rubbers. The testing machine produces continuous flexing with a particular condition of mode, degree and speed of flexing in the testing laboratories on a sample of the rubber.

How can the De-Mattia Flex Tester be operated?


The testing instrument provides full-fledged information regarding the resistance of the vulcanized rubbers to cracking when placed under repeated flexing. The cracks in the samples are developed on the rubbers where the stress is applied on the materials when they are placed under continuous flexural forces. If the specimen is already cracked from a particular area, more cracks are developed, or the cracks are enhanced in opposite direction. The testing machine is used to test at least six samples simultaneously. The device is provided with digital control panel and counter that provide highly precise and accurate test results. To know in detail about the testing machine, visit: www.testing-instruments.com/

Monday, September 7, 2015

Ensure Best Integrity And Intactness Of Pet Bottles With Vacuum Leak Tester



The PET bottles are increasing their base in a variety of industries such as food and beverages, pharmaceuticals, laboratory chemicals etc. With the increasing use of these bottles in different industries, there is also a huge demand for the high quality of the bottles so that the best packaging could be provided to the products with high quality, safety and hygiene. The safety of the products is only possible with the high quality of the PET bottles.

The manufacturers need to provide the best quality of the PET bottles with the help of proper testing instruments and test methods. There is a variety of testing procedure that are needed to be conducted on the PET products to make sure that they are of best quality.  One such testing instrument is the vacuum leak tester. The instrument is mainly used in the PET and preform industry for the purpose of testing the quality and integrity of the PET bottle so that only perfectly leak proof bottles are provided to the clients.

The vacuum leak tester is used for testing the PET bottles by subjecting them to a high amount of vacuum. The test specimen is subjected to a high amount of vacuum and then it is analyzed for any sort of deformation and development of bubbles inside the test specimen. In this way any pin holes or leakage in the test specimen is detected.

Presto offers highly advanced vacuum leak testers that are ideal for testing of PET bottles and are used in many PET manufacturing industries. The instrument is completely automatic and is designed to provide the test results in compliance with all the international and national standards. With Presto’s Vacuum leak testers, the manufacturers of PET bottles can make sure that the PET bottles they are providing to their clients are free from any leakage and are of best quality. 

Tuesday, September 1, 2015

Measure The Attributes Of Materials With Specific Gravity Balance



http://www.testing-instruments.com/digital-specific-gravity-balance/
Measuring the specific gravity of a material, is an important task that explains various molecular and chemical properties of a material.  The specific gravity is expressed by the ratio of the density of the material to the ration of density of water. The specific gravity is used to determine various properties and is used for many different applications.  The major application in which specific gravity plays an important role is Gemology. It is used to test the level of purity of the gemstones. Another application for which specific gravity is used, is measuring the thickness of eggshell without damaging the eggs. This technique helps in measuring the quality of the poultry. Moreover, it is used in a significant number of industries to measure the electromotive force by measuring the specific gravity of electrolytes used in batteries. 

Specific gravity of the products can be tested efficiently with the help of a testing equipment known as Digital Specific Gravity balance. The instrument offers highly accurate and reliable test results. The instrument provides the test results in digital format which explains that there is no need for manual calculations. 

Presto offers a high quality of Digital Specific Gravity Balances, which is widely used in a large number of production houses to test the specific gravity of the materials. The instrument complies with standard test methods which are provided by various standardization authorities like ASTM, ISO, BIS, etc.

Monday, August 31, 2015

Make Your Products Resistant To Ozone With Ozone Chambers

The rubber products are significantly used for a variety of applications in various industries. These applications are so crucial that the quality assurance of the rubber material and products becomes essential for safety purposes. This is also imperative for the economic benefit of the industries. The biggest issue is for the rubber products that are used in working environments that are rich ozone concentration. The ozone can severely affect the quality and properties of the rubber when exposed for a very long time. It is important for the manufacturers to test the effects of ozone of a particular product.

This test procedure is conducted with the help of a testing equipment called an ozone chamber. The ozone chamber is an active testing room which is used for creating the desired concentration of ozone inside the house to replicate the actual ozone-rich environment that is faced by the products during actual usage. The test sample is placed inside the chamber for testing. After the test has been conducted, the test sample is checked to the extent of damage that has been occurred in the sample due to ozone. This includes the assessment of change in physical strength and chemical composition of the sample.

Presto is one foe the leading manufacturer of best quality ozone chamber that provide your accurate and reputable test data. The testing instrument is in compliance with all the testing standards set by various authorities.