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沥青闪点测定仪、沥青闪点仪

沥青闪点测定仪、沥青闪点仪,沥青实验仪器

  • 型号:SYD-3536

  • 产品参数
  • 型号:SYD-3536


 


一,沥青闪点测定仪、沥青闪点仪产品简介:
沥青闪点仪是专业检测仪器,适用于克利夫兰开口杯(简称COC)测定粘稠石油沥青、煤沥青及闪点在79℃以上的液体石油沥青材料的闪点和燃点,以评定施工安全性时使用。
First, the product introduction:
Asphalt flash point meter is a professional testing instrument for Cleveland Open Cup (COC) for determining the flash point and ignition point of viscous petroleum asphalt, coal tar pitch and liquid petroleum asphalt material with flash point above 79 °C to assess construction safety. use.

二,沥青闪点测定仪、沥青闪点仪技术参数:
★电源:220V±10%     50H    
★环境温度:-10℃~50℃
★相对湿度:≤85%
★自动扫划、点火;
★电炉加热功率0~400W连续可调;
★加热丝由透明石英管保护,无明火,防爆,且升温速度快;
★外形尺寸;500X400X300mm
★重量;7kg
Second, technical parameters:
★Power supply: 220V±10% 50H
★ Ambient temperature: -10 ° C ~ 50 ° C
★ Relative humidity: ≤85%
★Automatic sweeping and ignition;
★ Electric furnace heating power 0~400W continuously adjustable;
★The heating wire is protected by transparent quartz tube, no open flame, explosion-proof, and the heating speed is fast;
★Dimensions; 500X400X300mm
★weight; 7kg

三,沥青闪点测定仪、沥青闪点仪安装使用:
★打开包装箱,按仪器成套及技术文件来检查仪器外表及相关配件,如无损坏或缺失,则按结     构图所示安装。
★检查电源接地是否良好。
★打开电源开关,指示灯亮,随后就可以进行试验操作。
★将试样杯用溶剂洗净、烘干,装置于支架上。
★安装温度计,将温度计垂直插入试样杯中,温度计的水银球距杯底约6.5mm,位置在与点火器相对一侧距杯边缘16mm处。
★将试样准备好后,注入试样杯中至标线处,并使试样杯其它部位不沾有沥青。(注:试样加热温度不能超过闪点以下55℃)
★全部装置应置于室内光线较暗且无显著空气流通的地方,并用防风屏三面围护。
★将点火器与可燃气全压力容器(如液化丙烷气或天然气)用软管连接,将点火器转向一侧,试验点火,调试火苗成标准球的形状或直径为4mm±0.8mm的小球形试焰。
Third, the installation and use:
★ Open the package and check the appearance of the instrument and related accessories according to the instrument package and technical documents. If there is no damage or missing, install it as shown in the structure diagram.
★ Check if the power supply is well grounded.
★ Turn on the power switch, the indicator light is on, and then the test operation can be performed.
★ Wash the sample cup with solvent, dry it, and install it on the stand.
★ Install the thermometer and insert the thermometer vertically into the sample cup. The mercury ball of the thermometer is about 6.5mm from the bottom of the cup, and the position is 16mm from the edge of the cup on the opposite side of the igniter.
★ After preparing the sample, inject it into the sample cup to the marking line, and make the other parts of the sample cup not contaminated with asphalt. (Note: The sample heating temperature should not exceed 55 ° C below the flash point)
★ All devices should be placed in a place where the room is dimly lit and there is no significant air circulation, and the wind screen is surrounded by three sides.
★ Connect the igniter to the flammable gas pressure vessel (such as liquefied propane gas or natural gas) with a hose, turn the igniter to one side, test the ignition, and debug the flame into a standard ball shape or a small sphere with a diameter of 4 mm ± 0.8 mm. Test the flame.

四,沥青闪点测定仪、沥青闪点仪试验步骤:
★开始加热试验,使升温速度迅速地达到14℃/min~17℃/min。待试样温度达到预期闪点前56℃时,调节加热器降低升温速度,以便在预期闪点前28℃时能使升温速度控制在5.5℃/min±0.5℃/min。
★试样温度达到预期闪点前28℃时开始,每隔2℃按点火器按钮一次,使点火器的试焰沿试验杯口中心以150mm半径作弧水平扫过一次,从试验杯口的一边至另一边所经过的时间约1s。此时应确认点火器的试焰为直径4mm±0.8mm的火球,并位于试验杯口上方2.5mm处。(注:试验时不应对着试样杯呼气)
★当试样液面上A初出现一瞬即灭的蓝色火焰,立即从温度计上读记温度,作为试样的闪点。注意勿将试焰四周的蓝白色火焰误认为是闪点火焰。
★继续加热,保持试样升温速度5.5℃/min±0。5℃/min,并按上述操作要求用点火器点火试验。
★当试样接触火焰立即着火,并能继续燃烧不少于5s时,停止加热,并读记温度计上的温度,作为试样的燃点。
★同一试样至少平行试验两次,两次测定结果的差值不超过重复性试验允许差8℃时,取其平均值的整数作为试验结果。
★精密度或允许差:
重复性试验的允许差为:闪点8℃,燃点8℃;
复现性试验的允许差为:闪点16℃,燃点14℃。

ourth, the test steps:
★ Start the heating test so that the heating rate quickly reaches 14 ° C / min ~ 17 ° C / min. When the sample temperature reaches 56 ° C before the expected flash point, the heater is adjusted to lower the temperature increase rate so that the temperature increase rate can be controlled at 5.5 ° C / min ± 0.5 ° C / min at 28 ° C before the expected flash point.
★ When the temperature of the sample reaches 28 °C before the expected flash point, press the igniter button once every 2 °C, so that the flame of the igniter is swept once along the center of the test cup with a radius of 150 mm, from the test cup. The time passed from one side to the other is about 1 second. At this point, it should be confirmed that the flame tester of the igniter is a fireball with a diameter of 4 mm ± 0.8 mm and is located 2.5 mm above the mouth of the test cup. (Note: The sample cup should not be exhaled during the test)
★ When the blue flame immediately disappears on the surface of the sample, immediately read the temperature from the thermometer as the flash point of the sample. Be careful not to mistake the blue-white flame around the flame for a flash point flame.
★ Continue heating, keep the sample heating rate 5.5 °C / min ± 0. 5 ° C / min, and use the igniter ignition test according to the above operation requirements.
★When the sample comes into contact with the flame and immediately catches fire, and can continue to burn for not less than 5s, stop heating and read the temperature on the thermometer as the ignition point of the sample.
★ The same sample is tested at least twice in parallel. The difference between the two determination results does not exceed the allowable difference of 8 °C in the repeatability test. The integer of the average value is taken as the test result.
★ Precision or tolerance:
The allowable difference of the repeatability test is: flash point 8 ° C, ignition point 8 ° C;
The allowable difference in the reproducibility test was: a flash point of 16 ° C and a flash point of 14 ° C.


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