"Times New Roman"">工作環境中的粉塵種類較多, "Times New Roman"">主要有矽塵、煤塵、鍋爐塵、石棉塵、水泥塵等。當粉塵中的游離二氧化硅含量較高時, mso-hansi-font-family:"Times New Roman"">對接觸人員危害較大, "Times New Roman"">因此有必要加強對粉塵中游離二氧化硅的測定。以往檢測粉塵中的游離二氧化硅含量, mso-hansi-font-family:"Times New Roman"">均采用GB 5748 - 1985 mso-hansi-font-family:"Times New Roman"">規定的“焦磷酸重量法”[ 1 ] , mso-hansi-font-family:"Times New Roman"">但該方法操作繁瑣、檢測周期長、準確性差, mso-hansi-font-family:"Times New Roman"">難以滿足批量檢測的要求。

"Times New Roman"">為了提高檢測的準確度, "Times New Roman"">實現批量檢測的目的, "Times New Roman"">我公司提供工作環境中粉塵及煤礦粉塵測定配套設備----Nolay-4000D "Times New Roman"">礦用粉塵中游離二氧化硅檢測儀。（符合中華人民共和國國家職業衛生標準GBZ/T 192.4 mso-hansi-font-family:"Times New Roman"">—2007  "Times New Roman"">工作場所空氣中粉塵測定）廣泛應用于疾控中心、煤礦等行業。

Nolay-4000D礦用粉塵中游離二氧化硅檢測儀規格參數

"Times New Roman"">光譜范圍：7800 "Times New Roman"">～350 cm-1

"Times New Roman"">分辨率：優于1.0 cm-1

"Times New Roman"">波數精度：≤0.01cm-1

"Times New Roman"">信噪比：優于15000:1 "Times New Roman"">／優于30000:1 "Times New Roman"">（P-P值，4cm-1 mso-hansi-font-family:"Times New Roman"">，一分鐘掃描） 可選

"Times New Roman"">分束器：KBr "Times New Roman"">基片鍍鍺（進口）

"Times New Roman"">光源:高能量、高效率、長壽命陶瓷光源（進口）

"Times New Roman"">干涉儀：非正交Michelson "Times New Roman"">干涉儀

"Times New Roman"">接收器：帶有防潮膜的高靈敏度DLATGS "Times New Roman"">接收器（進口）

"Times New Roman"">數據傳輸接口：USB2.0 "Times New Roman"">（兼容3.0）

"Times New Roman"">支持系統：Windows XP "Times New Roman"">、Windows Vista "Times New Roman"">、Windows 7 "Times New Roman"">、Windows 8 "Times New Roman"">、Windows 8.1 "Times New Roman"">、Windows 10

"Times New Roman"">尺寸:450mm "Times New Roman"">×350mm×210 mm

"Times New Roman"">重量：13Kg

"Times New Roman"">配套附件：

"Times New Roman"">壓片機，壓片模具， KBr "Times New Roman"">光譜純，瑪瑙研缽，十萬分之一天平，灰化爐或馬弗爐，干燥箱及干燥器，α石英、200 mso-hansi-font-family:"Times New Roman"">目粉塵篩，空氣采樣器等

"Times New Roman"">附國標檢測方法：

 GBZ

"Times New Roman"">中華人民共和國國家職業衛生標準

GBZ/T 192.4—2007 mso-hansi-font-family:"Times New Roman"">工作場所空氣中粉塵測定