Materials Harvel LXT® piping is produced from an innovative PVC compound that has been specifically formulated to reduce leachable contamination when exposed to ultra-pure water environments. Minor ingredients necessary for processing have been scrupulously selected to address their potential for contamination, and are then carefully blended in precise ratios. This results in a much cleaner material than conventional PVC compounds, and compares favorably to alternate materials typically used for UPW piping applications. This has been validated with extensive static and dynamic leach studies during exposure to 18.2 megohm ultra-pure water conducted by a reputable third party. Harvel LXT® material meets the toxicological requirements of NSF International Standard 61 as being safe for use in potable water applications, and also complies with the provisions of Title 21 of the United States FDA Code of Federal Regulations as being safe for use in food contact applications. Processing Processing conditions for converting this material into pipe form are as critical as the selection of the material itself to ensure that the physical properties of the finished product are optimized. Correct processing techniques ensure proper dispersion and fusion of the compound, resulting in a homogenous melt with uniform properties. Great care is also taken during this process using proprietary techniques to address surface finish characteristics. Optimizing processing conditions and providing smooth internal surfaces greatly reduce the potential for extractable and particle contaminants. Harvel LXT® pipe is cut square, purged to remove shavings, sealed in polybags and boxed on-line at time of manufacture to minimize contamination. Joining The Harvel LXT® system utilizes a one-step solvent-cementing system specifically formulated for use with this product (Harvel LXT® One-Step Cement). Unlike conventional PVC solvent cements, this system contains fewer contaminants and cures quickly, reducing the potential for TOC contamination. Joining is accomplished quickly and efficiently utilizing inexpensive tools, thereby greatly reducing labor and installation costs. Physical Properties Although the extractable contaminants of Harvel LXT® are much lower than common PVC piping, Harvel LXT® has physical properties very similar to those of conventional PVC piping. As a result, Harvel LXT® products exhibit the well-known physical characteristics and other benefits of conventional PVC piping, such as good chemical and corrosion resistance, low thermal conductivity, high strength-to-weight ratio, good impact resistance, and ease of installation.  LXT® Physical Properties Value Test Method Cell Classification 12343 ASTM D1784 Specific Gravity 1.327 (g/cu.Cm @ 73°F) ASTM D792 Tensile Strength, @ yield 6720 psi ASTM D638 Tensile Modulus of Elasticity 384,200 psi ASTM D638 Flexural Strength, @ yield 11,440 psi ASTM D790 Flexural Modulus of Elasticity 378,000 psi ASTM D790 Izod Impact (avg 2 complete breaks) (avg 3 partial & 2 complete breaks) 1.3 ft-lbs /inch 10.9 ft-lbs /inch ASTM D256 Coefficient of Linear Expansion 3.89 x 10-5 in/in°F ASTM D696 Compressive Stength 8732 psi ASTMD695 Heat Distortion Temperature 152°F ASTM D648 Hardness, Shore D 82.2 ± 3 ASTM D2240 Maximum Temperature Use 140°F