ASME BPE-2005 pdf download

ASME BPE-2005 pdf download.Bioprocessing Equipment.
,iick: a surface void anomaly caused by material removal or compression from the surface, whose bottom surface is usually irregular.
nominal on tside diameter: a numerical identification of outside diameter to which tolerances apply.
nominal wall thickness: a numerical identification of wall thickness to which tolerances apply.
non uniforni mechanical polishing marks: a localized surface polishing pattern that is dissimilar to the surrounding area.
off angle: a measurement of face-to-face squareness.
off plane: a measurement of the offset between part centerlines or two planes.
orange peel: an appearance of a pebbly surface.
orbital welding: automatic or machine welding of tubes or pipe in-place with the electrode rotating (or orbiting) around the work. Orbital welding can be done with the addition of filler material or as a fusion process without the addition of filler.
0-ring: ring seal of circular cross section.
overlap: the protrusion of weld metal beyond the weld toes or weld root. Also, in an orbital weld, that amount by which the end of the weld bead overlaps the begin- fling of the weld bead (not including the downslope) on a single-pass weld.
owner/user: the body upon which final possession or use rests.
oxidation: the formation of an oxide layer on a metal surface. When oxidation occurs as a result of welding, it is visible as discoloration. The discoloration or heat tint produced by oxidation has been associated with the onset of corrosion in stainless steel piping systems.
oxide layer: an area usually located in the heat-affected zone of the weidment where an oxidation reaction has taken place.
passivation: a final treatment/cleaning process used to remove free iron or other anodic contaminants from the surfaces of corrosion-resistant steel parts such that uniform formation of a passive layer is obtained.
passive layer: a passive oxidized film that forms naturally on the stainless steel surface when exposed to air or similar oxidizing environment protecting the underlying base metal from corrosion.
PE: polyethylene, polymer material composed of carbon and hydrogen.
peizet ration: see full penetration, incomplete penetration, joint penetration.
personal care products: products used for personal hygiene or cosmetic care.
PFA: perfluoroalkoxy, copolymer of perfluoroalkoxy and tetra fluoroethylene.
schedule: dimensional standard for pipe as defined by
ASTM.
SDR: standard dimension ratio, a sizing system for poiymer piping systems which relates wall thickness to pressure rating as defined by ISO.
seal point: location of process boundary created by components in contact (seal), having sufficient contact stress/load to create media or environmental isolation.
seal weld: a weld used to obtain fluid tightness as opposed to mechanical strength.
self-draining: the elimination of all fluid from the system due to the force of gravity alone.
SEM: scanning electron microscope.
semi-automatic arc welding: arc welding with equipment that controls only the filler metal feed. The advance of the welding is manually controlled.
service life: the life expectancy or number of cycles for which the unit will maintain its performance.
size classification: The size of surface deficits is classified in two groups: macro, referring to indications that can be seen in adequate lighting without magnification, and micro, referring to indications that can be seen only with the aid of magnification.
slag: a concentration of nonmetallic impurities (often oxides or nitrides) that forms in the weld pool and solidifies on the underbead or weld top surface. Sometimes referred to as dross.
slope: an incline or deviation from the horizontal. A tube or pipe installed in the horizontal plane is said to slope if one end is positioned higher than the other.
sparger: a device used to agitate, oxygenate, or aerate a liquid by means of compressed air or gas.
spatter: the metal particles expelled during welding that do not form part of a weld.
square cut: a tube end cut perpendicular to the tangent plane.
squareness: face-to-face perpendicularity.
star burst: a type of indication created during the reaction of electrochemical etching process on the foreign or refractory material (dross) on the welds or base metal.
steam in place (SIP): the use of steam to sanitize or sterilize a piece of equipment without the use of an autoclave.
sterile: free from living organisms.
sterility: the absence of all life forms.