美国CHEMetricsR-3902型DEHA填充盒用于测试水中DEHA含量。例如：锅炉给水和冷凝水是使用K-3902型DEHA测试盒中的补充品。规格参数：产品类型DEHA—CHEMets®Refill产品型号R-3902测试方法PDTS测试次数30次/盒产品价格咨询上海益朗仪器有限公司辅助器具C-3901型低范围DEHA比色筒、C-3902型高范围DEHA比色板、A-3900型DEHA活化剂溶液、A-0023型25mL样品杯CHEMets®是美国CHEMetrics的专利（专利号：3,634,038）。美国CHEMetricsDEHA测试盒VisualKits测试范围MDL测试方法测试盒货号填充盒货号0-400&400-3000ppb15ppbPDTSK-3902R-390225-250ppm25ppmCericSulfateTitrantwithFerroinIndicatorK-3925InstrumentalKits测试范围测试方法测试盒目录0-2.00ppmPDTSK-3903MethodsDissolvedoxygeninboilersystemwatercausescorrosionandpittingofmetalsurfaces,whichcanleadtoboilerinefficiency,equipmentfailure,andsystemdowntime.DEHA(N,N-Diethylhydroxylamine)isaddedtoboilersystemwaterasanoxygensc***engertokeepthedissolvedoxygenlevelsaslowaspossible.ThePDTSMethodReference:G.Frederick***ithChemicalCo.,TheIronReagents,3rded.,p.47(1980).ThetestkitsemploythePDTSchemistry,inwhichDEHAreducesironIII(ferricstate)toironII(ferrousstate),whichreadilyreactswithPDTS(3-(2-pyridyl)-5,6-bis(4-phenylsulfonicacid)-1,2,4-triazinedisodiumsalt)toformapink-purplecoloredcomplexindirectproportiontotheDEHAconcentration.Testresultsareexpressedinppb(ug/L)orppm(mg/L)DEHA.TheCericSulfateTitrimetricMethodReference:DevelopedbyCHEMetrics,Inc.CHEMetricsdevelopedatitrimetricmethodthatemploysacericsulfatetitrantandferroinendpointindicator.DEHAreducesferricirontotheferrousstate,andtheresultingferrousironistitratedwiththecericsulfatetitrant.Testresultsareexpressedinppm(mg/L)DEHA.系统繁忙，暂时无法读取数据，请稍后刷新页面再试！暂无评价商品总体满意度(非常满意)(满意)(一般)(不满意)(非常不满意)15210031000评价(全部)五星四星三星二星一星评论(全部)有评论内容无评论内容评价方系统繁忙，暂时无法读取数据，请稍后刷新页面再试！无任何符合您筛选的评价记录。共页到页确定)