ASTM D3960 PDF

This practice measures the volatile organic compound VOC content of solventborne and waterborne paints and related coatings as determined from the quantity of material released from a sample under specified bake conditions and subtracting exempt volatile compounds and water if present. Note The regulatory definition, under the control of the U. EPA, can change. To ensure currency, contact the local air pollution control agency. Such nonphotochemically reactive compounds are referred to as exempt volatile compounds in this practice.

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The major sources of VOC error were found to be in the water and non-volatile determinations. According to 40 CFR However, this definition excludes carbon monoxide, carbon dioxide, carbonic acid, metallic carbides or carbonates and ammonium carbonate. A list of the exempt solvents are found in the CFR, including some popular coating solvents such as acetone, t-butyl acetate, dimethyl carbonate, propylene carbonate, parachlorobenzotrifluoride Oxol , methyl acetate, methylene chloride, and most recently 2-aminomethylpropanol AMP EPA 24 is used by many manufacturing industries for reporting emissions of coating and related products to local regulatory bodies, with some of the most common being the CASE industries coatings, adhesives, sealants, and elastomers.

This would include both coating manufacturers and coating operations, such as automotive, appliance, furniture and can lining manufacturers. The coating operation industry is subject to emission controls which can range from 0.

While at times the EPA Method 24 may appear to be simple, there are many different tests that cover the large array of sample types. For this reason, it is very important to know your sample type and application to assure the correct testing is being performed to suit your needs. Typically, the VOC is reported as mass of VOC per Unit Volume of coating less water and exempt solvents; however, in some cases it needs to be reported out at mass of VOC per unit volume of coating solids which requires additional volume solids testing as shown below.

What are volatile organic compounds? Which industries and companies need EPA 24 testing? Different variations of EPA Method 24 While at times the EPA Method 24 may appear to be simple, there are many different tests that cover the large array of sample types.

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Environmental, Chemical & Materials Testing

We'd like to understand how you use our websites in order to improve them. Register your interest. In addition, all individual raw materials utilized in preparing the paints were also tested for their VOCs. There were significant differences between claimed and measured VOCs for both raw materials and finished paints.

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Sources of error in VOC determination via EPA method 24

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ASTM D3960/EPA

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ASTM D3960

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