Scouring, definition

We should warn you that there is some confusion in definition of the two terms spalling and scabbing. In some civil engineering literature (see Ref. 24), spalling refers to scouring and ejecta damage to the loaded face of the structure or slab, while scabbing denotes wave-induced failures at the rear face of the loaded slab. 

Horseradish extract. See Horseradish (Cochlearia armoracia) extract Horsetail (Equisetum arvense) extract CAS 71011-23-9 EINECS/ELINCS 275-123-8 Synonyms Dutch rush extract Equisetum arvense Equisetum arvense extract Horsetail extract Scouring rush extract Definition Extract of the sterile caules of Equisetum arvense... 

Definition Complex mixture of esters of phosphoric acid and oleth-4 Properties Anionic Toxicology TSCA listed Uses Surfactant in cosmetics detergent, emulsifier, wetting agent, lubricant, antistat, rust inhibitor, EP agent for detergents, metal cleaners, textile scours, emulsion polymerization, agric. 

Synonyms POE (16) monotallate Classification Ethoxylated fatty acid ester Definition PEG ester of tall oil acid Formula RCO-(OCH2CH2)nOH, RCO- rep. fatty acids from tall oil, avg. n = 16 Properties Nonionic Toxicology TSCA listed Uses Detergent, emulsifier, lubricant, dye assistant for home laundry, textile scouring, rug shampoos emulsifier in cosmetics defoamer in food-contact paper/paperboard in resinous/polymeric food-contact coatings in paper/paperboard in contact with dry foods in food-contact textiles... 

Similar concerns arise with single use products, such as wet-wipes, scouring pads, or disposable cleaning heads. Thus, a definitive need exists for abrasive products that are more readily disposable. 

In Chapters 3 and 4 we examined definitions of velocity during all periods of movement from settling to deposition, etc. Similarly, in open channels the critical scour velocity is well above the sedimentation velocity (or equal to the terminal velocity in full pipe flow). Sometimes engineers confuse these two terms, although they are quite different in magnitude. 

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