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The Second Edition of Modern Size-Exclusion Chromatography offers a complete guide to the theories, methods, and applications of size-exclusion chromatography. It provides an unparalleled, integrated, up-to-date treatment of gel permeation and gel filtration chromatography. With its detailed descriptions of techniques, data handling, compilations of information on columns and column packings, and tables of important solvents and reference materials, the book offers readers everything they need to take full advantage of this popular macromolecular characterization technique. Since publication of the first edition in 1979, there have been many important advances in the field of size-exclusion chromatography. This Second Edition brings the book thoroughly up to date, with expert coverage of: New and emerging industrial and research applications Practical aspects of size-exclusion chromatography (SEC) and multidetector and multidimensional SEC technologies for polymer architecture and copolymer analysis Updated information on the latest equipment and techniques New best practices for the lab SEC in relation to polymer characterization techniques such as GPEC, LCCC, and rheology Throughout the text, detailed examples guide you step by step through all the latest techniques and applications. With its extensive revisions and updates written by leading experts and pioneers in the field, Modern Size-Exclusion Liquid Chromatography remains the definitive resource for the broad range of researchers and scientists who use HPLC and GPC methods.

SharkBite PEX tubing is a cross-linked polyethylene tubing for a wide range of residential and commercial plumbing applications. Manufactured with an oxygen barrier for radiant floor and hydronic heating applications (available in orange). The oxygen diffusion barrier applied to the exterior limits oxygen permeation through the tubing wall in hydronic heating applications which prevents corrosion of ferrous metal parts in the heating system. A repeating SharkBite imprint pattern provides a visual aid to determine if the tube has been inserted all the way into the SharkBite Push-Fit Fitting. This feature only works if the tubing is cut between the SharkBite imprint pattern. Material: Cross-Linked Polyethylene (PEX).

Cross-linked polyethylene pipe approved for radiant in-floor and hydronic heating applications. Available in coils up to 1,000 ft. in length, allowing longer runs and fewer connections -- reducing cost, time and potential leak points. The oxygen diffusion barrier applied to the exterior limits oxygen permeation through the piping wall in hydronic heating applications which prevents corrosion of ferrous metal parts in the heating system. Approved for burial applications including concrete. Ideal for snow and ice melting systems, geothermal groundloops and turf conditioning.

Ancient Oak by KronoOriginal is a 12 mm waterproof, durable floor with a subtle rustic look and a authentic feel. The waterproof surface protection limits any water permeation and protects from spills and accidents. KronoOriginal flooring surpasses rigorous testing, guaranteeing it to have superior resistance to scratching, denting and fading. Built to last with a lifetime residential warranty and a 10-year light commercial warranty. Underlayment is not required; this flooring includes a 2 mm pre-attached pad making installation a breeze. Caring for your KronoOriginal flooring is easy, just sweep and mop as needed. See use and care guide for complete details. For installation, we recommend you purchase a minimum of 10% overage to account for cuts and waste. Don't forget your trim and moldings. Remember: 48-hour acclimation period is required before installation. For more beautiful flooring possibilities with unrivaled value, please check out the entire Pacific collection by KronoOriginal. The Collection offers a wide array of 12 mm waterproof in a variety of stunning options. Color: Medium. Material: Laminate.

River Penfold Hickory by KronoOriginal is 10 mm exceptionally durable floor with all over texture. The golden undertones under the rich brown hickory pairs well with a variety of styles and home decor. The waterproof surface protection limits any water permeation and protects from spills and accidents. KronoOriginal flooring surpasses rigorous testing, guaranteeing it to have superior resistance to scratching, denting and fading. Built to last with a lifetime residential warranty and a 5-year light commercial warranty. Underlayment is not required; this flooring includes a 2 mm pre-attached pad making installation a breeze. Caring for your KronoOriginal flooring is easy, just sweep and mop as needed. See use and care guide for complete details. For installation, we recommend you purchase a minimum of 10% overage to account for cuts and waste. Don't forget your trim and mouldings. Remember: 48-hour acclimation period is required before installation. For more beautiful flooring possibilities with unrivaled value, please check out the entire Huron collection by KronoOriginal. The Collection offers a wide array of 10 mm waterproof in a variety of stunning options. Color: Dark. Material: Laminate.

ApolloPEX tubing is cross-linked polyethylene tubing primarily used in radiant and hydronic heating applications (Indicated by Orange color). An oxygen diffusion barrier designed within the exterior of the pipe limits oxygen permeation through the tubing wall in hydronic heating applications which assists in the prevention of corrosion of ferrous parts within the piping system. The ApolloPEX system is a comprehensive piping system comprised of brass fittings, poly alloy fittings, manifolds, valves, fasteners, tools and tubing designed for implementation in water delivery systems, simple or complex. Material: Cross-Linked Polyethylene (PEX).

Fair Locomotive Wood by KronoOriginal is a 12 mm waterproof, durable floor with an time-worn look for an authentic look and feel. The waterproof surface protection limits any water permeation and protects from spills and accidents. KronoOriginal flooring surpasses rigorous testing, guaranteeing it to have superior resistance to scratching, denting and fading. Built to last with a lifetime residential warranty and a 10-year light commercial warranty. Underlayment is not required; this flooring includes a 2 mm pre-attached pad making installation a breeze. Caring for your KronoOriginal flooring is easy, just sweep and mop as needed. See use and care guide for complete details. For installation, we recommend you purchase a minimum of 10% overage to account for cuts and waste. Don't forget your trim and moldings. Remember: 48-hour acclimation period is required before installation. For more beautiful flooring possibilities with unrivaled value, please check out the entire Pacific collection by KronoOriginal. The Collection offers a wide array of 12 mm waterproof in a variety of stunning options. Color: Medium. Material: Laminate.

Attwood's low-permeation Fuel Line Kits set the standard in performance, safety and value. They include Attwood's award-winning Universal Sprayless Connector (hose and tank fittings with thread sealant), multi-layer low-permeation Primer Bulb and low-permeation fuel line. Fuel Demand Valve is optional. Multi-Layer Primer Bulb with new High-Performance Check Valve and O-Ring: Provides 30% faster priming during start-up and 20% to 35% higher running flow than competitive designs. Ethanol Resistant Fuel Line: Eliminates inner-layer delamination seen by others. Fuel Demand Valve (if equipped): Prevents engine flooding by restricting pressurized fuel from reaching the engine. Universal Sprayless Tank Fitting: Enables a safe, gas-free experience at every connection.

Hampshire Spalted Maple by KronoOriginal is a 12 mm waterproof, durable floor with an elegant look and feel. This spalted maple is recreation of a traditional maple with gray spalting and a muted sandy color. The waterproof surface protection limits any water permeation and protects from spills and accidents. KronoOriginal flooring surpasses rigorous testing, guaranteeing it to have superior resistance to scratching, denting and fading. Built to last with a lifetime residential warranty and a 10-year light commercial warranty. Underlayment is not required; this flooring includes a 2 mm pre-attached pad making installation a breeze. Caring for your KronoOriginal flooring is easy, just sweep and mop as needed. See use and care guide for complete details. For installation, we recommend you purchase a minimum of 10% overage to account for cuts and waste. Don't forget your trim and moldings. Remember: 48-hour acclimation period is required before installation. For more beautiful flooring possibilities with unrivaled value, please check out the entire Pacific collection by KronoOriginal. The Collection offers a wide array of 12 mm waterproof in a variety of stunning options. Material: Laminate.

Grizzly Weathered Oak by KronoOriginal is a 12 mm waterproof, durable floor with a subtle rustic look and feel. The waterproof surface protection limits any water permeation and protects from spills and accidents. KronoOriginal flooring surpasses rigorous testing, guaranteeing it to have superior resistance to scratching, denting and fading. Built to last with a lifetime residential warranty and a 10-year light commercial warranty. Underlayment is not required; this flooring includes a 2 mm pre-attached pad making installation a breeze. Caring for your KronoOriginal flooring is easy, just sweep and mop as needed. See use and care guide for complete details. For installation, we recommend you purchase a minimum of 10% overage to account for cuts and waste. Don't forget your trim and moldings. Remember: 48-hour acclimation period is required before installation. For more beautiful flooring possibilities with unrivaled value, please check out the entire Pacific collection by KronoOriginal. The Collection offers a wide array of 12 mm waterproof in a variety of stunning options. Material: Laminate.

Brook Penfold Hickory by KronoOriginal is a 12 mm waterproof, durable floor with the elegant look and feel of a classic rich brown hickory floor. The waterproof surface protection limits any water permeation and protects from spills and accidents. KronoOriginal flooring surpasses rigorous testing, guaranteeing it to have superior resistance to scratching, denting and fading. Built to last with a lifetime residential warranty and a 10-year light commercial warranty. Underlayment is not required; this flooring includes a 2 mm pre-attached pad making installation a breeze. Caring for your KronoOriginal flooring is easy, just sweep and mop as needed. See use and care guide for complete details. For installation, we recommend you purchase a minimum of 10% overage to account for cuts and waste. Don't forget your trim and moldings. Remember: 48-hour acclimation period is required before installation. For more beautiful flooring possibilities with unrivaled value, please check out the entire Pacific collection by KronoOriginal. The Collection offers a wide array of 12 mm waterproof in a variety of stunning options. Color: Dark. Material: Laminate.

White Wash Mountain Larch by KronoOriginal is 10 mm exceptionally durable floor with subtle rustic characteristics. The white wash over the soft gray wood pairs well with a variety of styles and home decor. The waterproof surface protection limits any water permeation and protects from spills and accidents. KronoOriginal flooring surpasses rigorous testing, guaranteeing it to have superior resistance to scratching, denting and fading. Built to last with a lifetime residential warranty and a 5-year light commercial warranty. Underlayment is not required; this flooring includes a 2 mm pre-attached pad making installation a breeze. Caring for your KronoOriginal flooring is easy, just sweep and mop as needed. See use and care guide for complete details. For installation, we recommend you purchase a minimum of 10% overage to account for cuts and waste. Don't forget your trim and mouldings. Remember: 48-hour acclimation period is required before installation. For more beautiful flooring possibilities with unrivaled value, please check out the entire Huron collection by KronoOriginal. The Collection offers a wide array of 10 mm waterproof in a variety of stunning options. Material: Laminate.

Smokey Heirloom Ash by KronoOriginal is 10 mm exceptionally durable floor with a matte finish. The ash gray color with warm undertones pairs well with a variety of styles and home decor. The waterproof surface protection limits any water permeation and protects from spills and accidents. KronoOriginal flooring surpasses rigorous testing, guaranteeing it to have superior resistance to scratching, denting and fading. Built to last with a lifetime residential warranty and a 5-year light commercial warranty. Underlayment is not required; this flooring includes a 2 mm pre-attached pad making installation a breeze. Caring for your KronoOriginal flooring is easy, just sweep and mop as needed. See use and care guide for complete details. For installation, we recommend you purchase a minimum of 10% overage to account for cuts and waste. Don't forget your trim and moldings. Remember: 48-hour acclimation period is required before installation. For more beautiful flooring possibilities with unrivaled value, please check out the entire Huron collection by KronoOriginal. The Collection offers a wide array of 10 mm waterproof in a variety of stunning options. Color: Medium. Material: Laminate.

Azalea Oak by KronoOriginal is 10 mm exceptionally durable floor with a matte finish. The neutral gray pairs well with a variety of styles and home decor. The waterproof surface protection limits any water permeation and protects from spills and accidents. KronoOriginal flooring surpasses rigorous testing, guaranteeing it to have superior resistance to scratching, denting and fading. Built to last with a lifetime residential warranty and a 5-year light commercial warranty. Underlayment is not required; this flooring includes a 2 mm pre-attached pad making installation a breeze. Caring for your KronoOriginal flooring is easy, just sweep and mop as needed. See use and care guide for complete details. For installation, we recommend you purchase a minimum of 10% overage to account for cuts and waste. Don't forget your trim and moldings. Remember: 48-hour acclimation period is required before installation. For more beautiful flooring possibilities with unrivaled value, please check out the entire Huron collection by KronoOriginal. The Collection offers a wide array of 10 mm waterproof in a variety of stunning options. Color: Medium. Material: Laminate.

ApolloPEX tubing is cross-linked polyethylene tubing primarily used in radiant and hydronic heating applications (Indicated by Orange color). An oxygen diffusion barrier designed within the exterior of the pipe limits oxygen permeation through the tubing wall in hydronic heating applications which assists in the prevention of corrosion of ferrous parts within the piping system. The ApolloPEX system is a comprehensive piping system comprised of brass fittings, poly alloy fittings, manifolds, valves, fasteners, tools and tubing designed for implementation in water delivery systems, simple or complex. Material: Cross-Linked Polyethylene (PEX).

ApolloPEX tubing is cross-linked polyethylene tubing primarily used in radiant and hydronic heating applications (Indicated by Orange color). An oxygen diffusion barrier designed within the exterior of the pipe limits oxygen permeation through the tubing wall in hydronic heating applications which assists in the prevention of corrosion of ferrous parts within the piping system. The ApolloPEX system is a comprehensive piping system comprised of brass fittings, poly alloy fittings, manifolds, valves, fasteners, tools and tubing designed for implementation in water delivery systems, simple or complex. Material: Cross-Linked Polyethylene (PEX).

ApolloPEX tubing is cross-linked polyethylene tubing primarily used in radiant and hydronic heating applications (Indicated by Orange color). An oxygen diffusion barrier designed within the exterior of the pipe limits oxygen permeation through the tubing wall in hydronic heating applications which assists in the prevention of corrosion of ferrous parts within the piping system. The ApolloPEX system is a comprehensive piping system comprised of brass fittings, poly alloy fittings, manifolds, valves, fasteners, tools and tubing designed for implementation in water delivery systems, simple or complex. Material: Cross-Linked Polyethylene (PEX).

Ammex Glove works Black Nitrile Examination Gloves are 6 mils thick to protect from chemicals, contaminants, and pathogens. Excellent fit, feel, and tactile sensitivity. Perfect for industrial and medical applications. Tested to resist permeation against fentanyl for up to 240 min based on ASTM D6978 standard.

Unsupported butyl gloves with a smooth grip provide a high permeation-resistance to gas and water vapor. Durable construction is also highly resistant to ketones (MEK, MIBL, acetone) and esters (tricresyl phosphate, amyl acetate, ethyl acetate). Rolled bead cuffs provide a secure, comfortable fit. Hand-specific design provides a formfitting fit for excellent control. Gloves are perfect for use in chemical, manufacturing, military and municipal services.

Unsupported butyl gloves with a smooth grip provide a high permeation-resistance to gas and water vapor. Durable construction is also highly resistant to ketones (MEK, MIBL, acetone) and esters (tricresyl phosphate, amyl acetate, ethyl acetate). Rolled bead cuffs provide a secure, comfortable fit. Hand-specific design provides a formfitting fit for excellent control. Gloves are perfect for use in chemical, manufacturing, military and municipal services.