管式爐毒性試驗設備
IEC 60754-1 / 2，NFX 70-100
管式爐毒性測試方法用於評估分解或燃燒過程中的有毒或腐蝕性產品。
該設備是小型靜態管式爐，其中將試樣（對於低密度材料通常為1克或0.1g）在坩堝中推入爐管中部並熱分解。爐溫為400、600和800°C的皮重用於表示在2升min-1的流動空氣中的氧化熱解，通風良好和通風不足的條件，在此溫度下它們可能會發生熱解和自燃。對於大多數溫度為400°C的材料，它們不會點燃，因此條件是氧化熱解。在600°C的溫度下，熱解速率可能會相當緩慢，從而使通風狀況良好；而在800°C時，由於熱解速率超過化學計量的空氣供應量，火災條件可能會接近通風不足率。廢水透過氣體檢測鼓泡器和氣袋驅動，以進行後續分析。
規格與功能
系統包括：
• 水平式爐具有以下尺寸：內徑65mm；總長625mm;加熱長度550mm；最高工作溫度為1200°C，配有溫度控制器和顯示螢幕。
• 特殊石英工作管，全長700mm，配有高溫端環
• 100個尺寸符合標準的瓷製燃燒艇
• 3 個硼矽酸鹽玻璃洗瓶，並配有3個Drechsel洗瓶頭
• 相關的油管和配件
• 用於將燃燒舟插入爐中的裝載工具
• 電磁攪拌機
• 吸油泵
• 校正流量計
選件和附件：
• 熱電偶系統，可透過手持式溫度指示器測量熔爐溫度分佈
• 數據採集系統，可半自動記錄溫度曲線，以及自動啟動測試，並通過遠程手持設備記錄測試事件。還記錄測試過程中的溫度曲線。該系統可以配置為記錄其他分析儀（未提供）的模擬信號電壓輸出，以進行連續測量。原始測試/溫度曲線數據可導入MS excel。包含Windows 7上筆電
• 瓷質燃燒艇（每包100個）
• 高硼矽玻璃洗瓶（每個）
• Drechsel洗瓶頭（每個）
• 以上備用管（10米）
技術數據
電氣：230 volts AC 50Hz, 13 Amp / 115volts AC 60Hz, 25 Amp.
環境溫度：工作溫度10°C至35°C
爐體尺寸：1400mm（W）x 800m x（H）x 450mm（D）
爐溫：最高工作溫度1100°C
Tube Furnace Toxicity
IEC 60754-1/2, NFX 70-100
The Tube Furnace Toxicity test method is used in the assessment of toxic or corrosive products during decomposition or combustion.
The apparatus is a small scale static tube furnace in which the test specimen (typically 1 gram or 0.1g for low density materials), is pushed, in a crucible, into the middle of the furnace tube and thermally decomposed. Furnace temperatures of 400, 600 and 800°C tare used to represent oxidative pyrolysis, well-ventilated and under-ventilated conditions in flowing air at 2 litres min-1, where they may pyrolyse and auto-ignite. For most materials at a temperature of 400°C they will not ignite, so the condition is oxidative pyrolysis. At a temperature of 600°C, the rate of pyrolysis may be fairly slow, giving a well-ventilated fire condition, whereas at 800°C the fire condition may be closer to under-ventilated as the rate of pyrolysis exceeds the stoichiometric air supply rate. The effluent is driven through gas detection bubblers and gas bags for subsequent analysis.
Specification & Features
System comprises of:
•Horizontal tube furnace with the following dimensions: bore diameter 65mm; overall length 625mm; heated length 550mm; with operating temperature up to 1200°C, complete with temperature controller and display.
•Special quartz work tube of overall length 700mm complete with high temperature end collars
•100 porcelain combustion boats of appropriate dimensions to meet standard
•3 borosilicate glass wash bottles and, complete with 3 Drechsel wash bottle heads
•Associated tubing and fittings
•Loading tool for inserting combustion boat into furnace
•Magnetic stirrer
•Suction pump
•Calibrated flow meter
Options and Accessories:
•Thermocouple system to allow furnace temperature profile measurement with handheld temperature indicator
•Data Acquisition System to semi automate and record temperature profile, as well as auto start test, record test events with a remote handset. Also records temperature profile during the test. The system can be configured to record the analogue signal voltage output of additional analysers (not supplied) for continuous measurements. Raw test/temperature profile data is available for import into MS excel. Windows 7 Notebook included
•Porcelain combustion boats (pack of 100)
•Borosilicate glass wash bottle (each)
•Drechsel wash bottle head (each)
•Spare tubing for above (10 metres)
TECHNIC AL DATA
Electrical: 230 volts AC 50Hz, 13 Amp / 115volts AC 60Hz, 25 Amp.
Ambient Temperature: Operating 10°C to 35°C
Furnace Dimensions: 1400mm (W) x 800m x (H) x 450mm (D)
Furnace Temperature: Maximum Operating 1100°C
