ASTM C168:19 pdf download

ASTM C168:2019 pdf download.Standard Terminology Relating to Thermal lnsulation.
lagging-insulation, n—Insulation used on pipe, tanks, ducts, vessels, or other mechanical equipment.
Discussion—Lagging-insulation is usually applied in the form of cut. pieced together or mitered parts.
laminate jacket—a thin, flexible sheet material intended for use as a jacket over thermal insulation on pipe, duct, or equipment, and consisting of multiple layers of polymer film and aluminum foil bonded together.
Discussion—A laminate jacket is available with or without a factory applied pressure sensitive adhesive.
Discussion—Laminate jacket is commercially available in dillérent widths, it typically is provided in approximate widths of pipe insulation sections.
Discussion—A laminate jacket can also include a polymer coating as a top surface.
laminate tape, n—a thin, flexible sheet material intended for use as a tape to seal and secure a laminate jacket over thermal insulation on pipe, duct, or equipment.
DIscussion—Laminate tape always has a factory applied, pressure sensitive adhesive which first requires removal of a release liner.
DISCUSSION—Laminate tape is commercially available in several different widths.
DISCUSSION—A laminate tape can also include a polymer coating as a top surface.
loose fill insulation, n—insulation in granular, nodular, fibrous, powdery, or similar form designed to be installed by pouring, blowing, or hand placement.
mastic, n—a material of relatively viscous consistency that dries or cures to form a protective finish, suitable for application to thermal insulation in thickness greater than 30 mils (0.76 mm) per coat.
mean specific heat, n—the quantity of heat required to change the temperature of a unit mass of a substance one degree, measured as the average quantity over the temperature range specified. (It is distinguished from true specific heat by being an average rather than a point value.) (In SI units: J/kg.K) (In inch-pound units: Btu/Ib.F)
metal lagging, n—See jacket.
microporous insulation, n—material in the form of compacted powder with an average interconnecting pore size comparable to or below the mean free path of air molecules at standard atmospheric temperature and pressure.
DlscussloN—Microporous insulation may contain fibers to add integral strength and may contain opacifiers to reduce the amount of radiant heat transmined.
mineral fiber, n—insulation composed principally of fibers manufactured from rock, slag, or glass, with or without binders.
mineral wool, n—A synthetic vitreous fiber insulation made by melting predominantly igneous rock, and or furnace slag, and other inorganic materials, and then physically forming the melt into fibers.