WARNINGTM 5-6630-215-122-22.PROCEDURES.a.Alkalinity Test Kit (fig. 2-13).(1) Alkalinity refers to the capability of water to neutralizeacids.The presence of carbonates, bicarbonates, and hydroxides ofcalcium, magnesium, and sodium metals are the most common causes ofalkalinity in natural waters.(a) The levels and types of alkalinity are directly dependenton the source of water. Natural surface and well waters usuallycontain less alkalinity than sewage or wastewater samples.Highlevels of alkalinity indicate the presence of a strongly alkalineindustrial waste.(b) Alkalinity is expressed as “P” (phenolphthalein) alkalin-ity or as “T” (total) alkalinity.Both types are determined bytitration with sulfuric acid standard solution 0.020 N, to an endpoint evidenced by the color change of standard solution.(c) The “P” alkalinity is determined by titration to a pH of8.3 (the phenolphthalein end point) and registers the total hydroxideand one half the carbonate present.The “T” alkalinity is determinedby titration to a pH of 5.1, 4.8, or 4.5, depending on the amount ofcarbon dioxide present as described in para 2-22a(3) below.The totalalkalinity includes all carbonate, bicarbonate and hydroxidealkalinity.Total Alkalinity Indicator: For test purposesonly.Not for internal use.Keep away fromchildren.Alkalinity Titration Reagent (Sulfuric Acid).For test purposes only.Not for internal use.Keep away from children.May cause burns.Avoidbreathing vapors.In case of contact with skinor eyes, flush well with water, for eyes getmedical attention.If swallowed, call a physi-cian at one.DO NOT INDUCE VOMITING.Give milkof magnesia with large amounts of water.Followwith milk or raw egg whites beaten in water.Phenolphthalein Indicator.For test purposesonly.Flammable.Keep away from sparks or openflame.Not for internal use - contains toxicmaterial.If swallowd, call a physician at once.Induce vomiting by giving a tablespoonful of saltin a glass of warm water, repeating until vomit isclear.KEEP OUT OF REACH OF CHILDREN.2-55
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
