美国CHEMetricsK-4605A型甲醛测试盒用于测试水中甲醛含量。例如：工业生产用水，废水应用;不适用于海水规格参数：产品类型Formaldehyde—VACUettes®VisualHighRangeKit产品型号K-4605A测试范围0-60&60-600ppm测试目盛0,10,15,20,30,40,50,60&60,120,180,240,300,360,420,480,600ppm检测下限10ppm测试时间12分钟测试方法Purpald测试次数30次/盒标准配置1盒填充盒、1支低范围甲醛比色筒、1块高范围甲醛比色板、2瓶甲醛活化剂溶液、1个稀释鲷鱼杯、1个小型微测试管、1个25mL样品杯帽、1份说明书产品价格咨询上海益朗仪器有限公司CHEMets®是美国CHEMetrics的专利（专利号：3,634,038）。美国CHEMetrics甲醛测试盒VisualKits测试范围MDL测试方法测试盒货号填充盒货号0-1&1-10ppm0.1ppmPurpaldK-4605R-46050-30&30-300ppm5ppmPurpaldK-4605DR-4605D0-60&60-600ppm10ppmPurpaldK-4605AR-4605A0-120&120-1200ppm20ppmPurpaldK-4605BR-4605B0-1200&1200-12000ppm200ppmPurpaldK-4605CR-4605CMethodFormaldehyde,atoxicsubstance,isusedinthefollowingapplicati***:metalplatingbaths,textiletreatments,biologicalspecimenpreservatives,anddisinfectantsofmedicalequipment.Commercialformaldehydegasisreadilysolubleinwater.ThePurpaldMethodReference:Purpald®developedbyAldrichChemicalCo.Purpald®issubjecttofewerinterferencesthanSchiff’sreagentorchromotropicacidprocedures.Apurple-coloredcomplexisformedwhenPurpaldinalkalinesolutionreactswithformaldehyde.Resultsareexpressedasppm(mg/L)CH2O.Shelf-lifeofthePurpaldReagent:fivemonths.Werecommendstockingquantitiesthatwillbeusedwithinfourmonths.)