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At first glance, most polyethylene storage tanks look pretty similar. It’s hard to tell the difference between a robust, well-designed tank and an inferior one. Over the years, we've found that many customers aren’t aware of the construction standards for polyethylene tanks, or they believe that all tank manufacturers follow the same standards.

Unfortunately, not all polyethylene tanks are designed to meet industry standards, so it is critical to know what to look for and what you’re purchasing. The most important standard for polyethylene tanks is the ASTM D 1998. Here’s what you need to know about the ASTM standard.

Sulfuric acid is one of the most widely used chemicals in the United States. More sulfuric acid is produced every year than any other chemical. It has a multitude of industry-specific uses, such as the production of other chemicals, dyes and pigments, water treatment, and fertilizers.

While, at a glance, it’s impossible to gauge the life of your polyethylene chemical storage tank, there are many things to know and consider that will help you extend the life of your tank to its fullest potential. It is important to know that from the production of the tank, through installation, it is expertly manufactured with all of the right gaskets and fittings. After tank installation, it is important to have it inspected regularly to look for problems that could cause tank failure.

Purchasing the wrong chemical storage tank could be a disastrous decision, so it’s critical to make sure you’re ordering a storage solution that can meet your specific needs.

There are several important factors to consider when you design a polyethylene chemical storage tank for your particular application. Always start the configuration process with the chemical that is being stored, because the chemical’s properties influence the entire tank design, including fittings and accessories, thickness, and materials.

Municipal projects require detailed specifications for anything purchased as a capital expense. At Poly Processing Company, we’ve teamed up with national engineering firms to develop pre-written engineering specifications for our three most popular tanks: the SAFE-Tank®, the vertical tank with IMFO® and the upright vertical tank.

Poly Processing is committed to ensuring that our polyethylene chemical storage systems are NSF/ANSI 61 certified. In our previous article on NSF, we looked at NSF/ANSI 61 and what it means to be certified. There can be some confusion about whether tanks or tank systems are certified to NSF/ANSI 61 and which certification is valid for which tank.

Most products that come in contact with potable water are tested under NSF 61 with the pH 5, pH 8 and pH 10 exposure waters defined in the standard. These exposure waters were designed to simulate the wide variety of potable water chemistries encountered across North America. However, these exposure waters were not designed to predict leaching of materials caused by aggressive chemicals.

When companies come to Poly Processing, they aren’t just looking for the best chemical storage tank options. Our customers also trust us for some of the most reliable information in the industry. We’re dedicated to helping you store your materials safely and effectively.

The Poly Processing chemical storage solution always begins with a thorough understanding of the chemical being stored. To design and recommend a safe, cost-effective chemical storage system, it's critical for our tank experts to ask the right questions and do the right research. This ensures that we properly understand the makeup of your chemicals and the potential reactions to various storage solutions.

PFAS continues to make headlines and cause concern because these compounds have been detected in drinking water supplies across the country. The Agency for Toxic Substances and Disease Registry has determined that PFAS accumulation in the human body can have adverse health effects. In response, to provide Americans, including the most sensitive populations, with a margin of protection from a lifetime of exposure to PFOA and PFOS from drinking water, U.S. Environmental Protection Agency (EPA) has established the health advisory levels at 70 parts per trillion. In addition, the EPA has set a drinking water lifetime health advisory limit of 70 parts per trillion (ppt) for PFOA and PFOS. These are some of the lowest limits ever established for a contaminant.