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  • Supply Air

    Conditioned air supplied mechanically to the space (room), measured here in cubic feet per minute (CFM) (Divide by 0.6 to get cubic meters per hour (CMH).
  • Supply Airflow Rate

    Air volume supplied into an installation from final filters or air ducts in unit time (m³/h). ISO 14644-3.
  • Supply Chain

    The sequence of processes involved in the production and distribution of a commodity. A supply chain normally encompasses the following three functions:-Supply of materials to a manufacturer;-The manufacturing process; and,-The distribution of finished goods through a network of distributors and retailers to a final customer.Companies involved in various stages of this process are linked to each other through a supply chain.
  • Support Software

    (IEEE) Software that aids in the development and maintenance of other software; e.g., compilers, loaders, and other utilities.
  • Support Testing

    (IEEE) All testing required to verify system operation in accordance with design requirements after the major component is energized or operated.
  • Supporting Data

    (ICH Q1A (R2)) Data, other than those from formal stability studies, that support the analytical procedures, the proposed re-test period or shelf life, and the label storage statements. Such data include (1) stability data on early synthetic route batches of drug substance, small scale batches of materials, investigational formulations not proposed for marketing, related formulations, and product presented in containers and closures other than those proposed for marketing; (2) information regarding test results on containers; and (3) other scientific rationales.
  • Suppresor Gene

    A gene that can reverse the effect of a mutation in other genes.
  • Suppressor

    Mutations in suppressor genes are able to overcome (suppress) the effects of mutations in other, unlinked, genes. A common, and very useful, kind of suppressor mutation occurs within the gene encoding a tRNA molecule and results in a change in the tRNA's anticodon. Such a mutant tRNA can reverse the effect of chain-terminating mutations, such as amber or ochre, in protein-encoding genes.
  • Surface Finish

    All surfaces as defined by Part SF of the current ASME BPE Standard and/or the owner/user or manufacturer and referred in Ra microinches (µin.), or microns (µm).
  • Surface Finishes

    This term shall apply to all interior surface finishes accessible and inaccessible, that directly or indirectly come in contact with the designated product in bioprocessing equipment and distribution system components. Final criteria shall be determined by Ra values rather than polishing methods.NOTE: For commonly utilized Ra readings on stainless steel product contact surfaces for the biopharmaceutical industry refer to Table SF-3 of the ASME Bioprocessing Equipment (BPE - 2007) an International Standard.
  • Surface Finishes

    This term shall apply to all interior surface finishes accessible and inaccessible, that directly or indirectly come in contact with the designated product in bioprocessing equipment and distribution system components (ASME BPEa-2000). Final criteria shall be determined by Ra values rather than polishing methods.NOTE: For commonly utilized Ra readings on stainless steel product contact surfaces for the biopharmaceutical industry refer to Table SF-3 of the ASME Bioprocessing Equipment (BPE - 2007) an International Standard.For Piping, Tubing, and Fittings:1.As fabricated2.Pickled and/or passivated3.Bright hydrogen annealed4.Mechanically polished5.Mechanically buffed6.Chemically polished7.ElectropolishedFor Sheet, Strip, and Plate:1.As fabricated. Without any specific surface treatments.2.Rolled Finish. Manufactured by either hot or cold rolled process.3.No. 1. A dull, hot rolled finish, annealed and pickled.4.No. 2D. A dull, cold rolled finish, annealed and pickled.5.No. 2B. A bright, cold rolled finish, annealed and pickled.6.No. 4. A general purpose polished finish widely used for architectural panels, trim, and sanitary equipment. Following initial grinding with coarse abrasives, the surface is finally finished with lubricated 150 grit abrasive belts.7.No. 4S. Processed as No. 4 except the final surface is polished to a smother finish. The purchaser must specify this alternative finish; the specification must state a No. 4 finish, using a 240 or 320 grit mechanical polish, whose particular surface roughness must meet the specified Ra value.8.No. 6. A dull finish having a lower reflectivity than No. 4. It is produced by a tampico brushing in a medium of abrasive and oil and is used primarily for architectural applications.9.No. 7. A finish with a high degree of reflectivity, produced by buffing to a finely ground surface without removing the grit lines.10.No. 8. The most reflective finish, obtained by polishing with successively finer abrasives and buffing extensively with very fine buffing rouges. This finish is most widely used for press plates, mirrors, etc.For Wrought and Cast Forgings:1.As fabricated or machined2.Mechanically ground, polished, or buffed3.Abrasive blast cleaned, using one of the following methods:a.Sand blastb.Shot blastc.Glass blastd.Wet blast4.Slurry polished5.Roll deburred6.Chemically cleaneda.Acid washed (pickled and passivated)b.Solvent washed7.Electropolished
  • Surface Finishes on Interior Weldments

    Class 1. Welds are to be ground smooth and flush. Visual pits and weld defects are removed.Class 2. Welds are ground smooth but not flush. The upper surface of the bead is removed, but visual pits and weld defects are not removed.Class 3. Welds as welded, no grinding.
  • Surface Inclusion

    Particles of foreign material in a metallic matrix. The particles are usually compounds such as oxides, sulfides, or silicates, but may be a substance foreign to and essentially insoluble in the matrix.
  • Surface Iron Oxide Layer

    Surface iron oxide layer present when the 316L stainless steel's iron composition signal is higher than its chromium signal at the surface.
  • Surface Markers

    Surface proteins that are unique to certain cell types, which are visualized using antibodies or other detection methods.
  • Surface Molecular Contamination (SMC)

    Presence of molecular (chemical, non-particulate) substances in the sorbed state that may have a deleterious effect on the product, or surface of interest, in the cleanroom or controlled environment.
  • Surface Residual

    A foreign substance that adheres to a surface by chemical reaction, adhesion, adsorption, or ionic bonding (for example, corrosion, rouging, and staining).
  • Surface Texture

    The repetitive or random deviations of the nominal metal surface from the three-dimensional topography of the surface. Surface texture includes roughness, waviness, lay, and flaws.
  • Surface Voltage Level

    Positive or negative voltage level or electrostatic charging on work or product surface, as indicated by use of a suitable instrument. ISO 14644-3.
  • Surface Water

    Surface water is any water where the source is above ground. This can be rivers, lakes, or reservoirs. Surface waters are usually higher in suspended matter and organic material and lower in dissolved minerals than well water.
  • Surface Water

    Any water where the source is above ground such as rivers, lakes, and reservoirs. Surface waters are usually higher in suspended matter and organic material and lower in dissolved minerals than well water.
  • Surfactant

    Any substance that changes the nature of a surface, such as lowering the surface tension of water.
  • Surfactants

    The use of these chemicals allows the formation of an emulsion or intimate mixture of otherwise incompatible substances by modifying the surface properties and influencing the wetting and flowing properties of liquids.
  • Surrogate Endpoints and Postmarketing Studies

    It’s often very expensive or time-consuming to measure the effect of a drug on an ultimate goal such as mortality. Drugs to reduce cholesterol, for example, are intended ultimately to reduce the number of heart attacks and thus to lengthen life expectancy. It could take twenty or more years to test this hypothesis adequately, however. A surrogate endpoint, such as a reduction in cholesterol counts, is a more easily measured endpoint. A drug may be approved based on clinical trials showing a positive surrogate endpoint if there is evidence from other studies that the surrogate endpoint accurately predicts an ultimate benefit (we know, for example, that men with high cholesterol are at greater risk of a heart attack, but this is not the same as knowing that a reduction in cholesterol will reduce heart attacks, although it is suggestive). Postmarketing studies can continue to tract the effectiveness of drugs that were approved using surrogate endpoint methodology. The use of surrogate endpoints is controversial because a positive surrogate endpoint does not necessarily predict a positive ultimate endpoint. Encainide and flecainide were widely prescribed because they prevented premature beats of the heart on the theory that such prevention would reduce heart attacks. The Cardiac Arrhythmia Suppression Trial later showed that not only was this claim false but that encainide and flecainide could actually increase the number of heart attacks.
  • Surrogate Material

    A chemical substitute (usually inert or of low toxicity) used for evaluating containment devices when use of the actual pharmaceutical ingredient in question is not advisable, e.g., when its potency creates an unacceptable risk for such activity, or when an analytical method is unavailable for the specific pharmaceutical ingredient that is being handled.