GBT 7494-1987 水質(zhì) 陰離子表面活性劑的測定 亞甲藍(lán)
@font-face{font-family:"Times New Roman";}@font-face{font-family:"宋體";}@font-face{font-family:"Calibri";}p.MsoNormal{mso-style-name:正文;mso-style-parent:"";margin:0pt;margin-bottom:.0001pt;mso-pagination:none;text-align:justify;text-justify:inter-ideograph;font-family:Calibri;mso-fareast-font-family:宋體;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;}span.msoIns{mso-style-type:export-only;mso-style-name:"";text-decoration:underline;text-underline:single;color:blue;}span.msoDel{mso-style-type:export-only;mso-style-name:"";text-decoration:line-through;color:red;}@page{mso-page-border-surround-header:no;mso-page-border-surround-footer:no;}@page Section0{margin-top:72.0000pt;margin-bottom:72.0000pt;margin-left:90.0000pt;margin-right:90.0000pt;size:595.3000pt 841.9000pt;layout-grid:15.6000pt;}div.Section0{page:Section0;}GB/T 7494-1987 水質(zhì) 陰離子表面活性劑的測定 亞甲藍(lán)分光光度法@font-face{font-family:"Times New Roman";}@font-face{font-family:"宋體";}@font-face{font-family:"Calibri";}p.MsoNormal{mso-style-name:正文;mso-style-parent:"";margin:0pt;margin-bottom:.0001pt;mso-pagination:none;text-align:justify;text-justify:inter-ideograph;font-family:Calibri;mso-fareast-font-family:宋體;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;}span.msoIns{mso-style-type:export-only;mso-style-name:"";text-decoration:underline;text-underline:single;color:blue;}span.msoDel{mso-style-type:export-only;mso-style-name:"";text-decoration:line-through;color:red;}@page{mso-page-border-surround-header:no;mso-page-border-surround-footer:no;}@page Section0{margin-top:72.0000pt;margin-bottom:72.0000pt;margin-left:90.0000pt;margin-right:90.0000pt;size:595.3000pt 841.9000pt;layout-grid:15.6000pt;}div.Section0{page:Section0;}本標(biāo)準(zhǔn)規(guī)定了測定水溶液中的陰離子表面活性的亞甲藍(lán)分光光度法。本方法食用于測定飲用水、地面水、生活污水及工業(yè)廢水中的低溫度亞甲藍(lán)活性物質(zhì)亦即陰離子的表面活性物質(zhì)。在試驗(yàn)條件下，主要被測物是LAS、烷基磺酸鈉和脂肪醇硫酸鈉，但可能存在一些真的和負(fù)的干擾。 查看PDF
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