Additionally, in the United States, OSHA regulates any commercial use of tank blanketing. When using inert gases, such as nitrogen, the user must follow strict protocols to ensure their workers are not exposed to harmful or lethal doses of any non-breathable substance. The manufacturer must follow strict maintenance programs to comply with all product-contact regulations regarding filter specifications, purity, and toxicity.
The FDA regulates gas-blanketing systems in the food industry.
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Industries that use Blanketing Download this Application Briefįood manufacturers use tank blanketing for storing cooking oils, fats, foods, and purified water to reduce oxidation, increase product shelf life, or prepare the product for transportation or final packaging. Manufacturers use the method to store adhesives, chemicals, fuels, pharmaceuticals, photographic chemicals, inks, and soaps. The blanketing process controls the atmosphere above a combustible or flammable liquid, reducing the ignition potential. Refineries, pharmaceutical companies, and the petrochemical industry use tank blanketing to prevent contact with oxygen and as a way to avoid potentially hazardous conditions. For this reason, the life of the product is prolonged and mitigates potentially explosive conditions. When purging a container with inert or inactive gas, the storage vessel material does not contact the oxygen. Tank blanketing, N2 nitrogen blanketing, or tank padding introduces an inert gas, such as nitrogen (the most cost-effective), to a storage tank to counter the effects of oxygen on the storage material, which is usually a liquid. When the storage material comes in contact with oxygen, the substance oxidizes and degrades or potentially creates a hazardous situation. Many industries store liquids, gases, and even slurries in storage tanks or vessels. Sage Metering manufactures thermal mass flow meters and does not produce entire blanketing systems. The following is a technical note on using nitrogen gas flow meters in nitrogen blanketing.
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