瀝青含水量測(cè)定儀是**檢測(cè)儀器，適用于測(cè)定石油瀝青、煤瀝青或乳化瀝青的含水量，及各種試驗(yàn)物內(nèi)含水量，以質(zhì)量百分率表示。

Asphalt water content measuring instrument is a testing instrument, suitable for measuring the water content of petroleum pitch, coal pitch or emulsified pitch, and the water content in various test objects, expressed as mass percentage.

瀝青含水量測(cè)定儀使用方法：

★稱(chēng)量洗凈并烘干的玻璃燒瓶的質(zhì)量（m1）準(zhǔn)確至0.1g

★將試樣充分搖勻，或預(yù)熱至50-80攝氏度，使成流體后注入玻璃燒瓶中約100G（水分不少于25%），或50G（水分多于25%），稱(chēng)其合計(jì)質(zhì)量（m2）至0.1G

★用量筒取200ml溶劑，注入燒瓶中，將燒瓶中的混合物仔細(xì)搖勻，勿使濺出瓶外并投入一些玻璃毛細(xì)管或五釉瓷片。

★將儀器裝置如圖，箱將洗凈并烘干的水分接受器的支管緊密地安裝在玻璃瓶上使支管的斜口進(jìn)入燒杯15-20cm，然后在接受器上連接冷凝管，冷凝管的內(nèi)壁要預(yù)先用棉花擦干，安裝時(shí)，冷凝管與水分接受器的軸心線要互相重合，冷凝管下端的斜口切面要與接受器的支管管口相對(duì)。為避免蒸汽溢出，應(yīng)在縫隙上再涂抹火棉膠。進(jìn)入冷凝管的水溫與室溫相差較大時(shí)，應(yīng)在塞子縫隙上再涂抹火棉膠，進(jìn)入冷凝管的溫水與室溫相差較大時(shí)，應(yīng)在冷凝管的上端用棉花塞著，以免空氣中的水蒸氣進(jìn)入冷凝管凝結(jié)。

★外形尺寸：690X260X210mm

★重量：8.5kg

How to use the asphalt water content tester:

★ Weigh the mass (m1) of the washed and dried glass flask to the nearest 0.1g

★ Shake the sample thoroughly, or preheat it to 50-80 degrees Celsius, make it into a glass flask and fill it with about 100G (moisture of not less than 25%) or 50G (moisture of more than 25%), and call its total mass. (M2) to 0.1G

★ Take 200ml of solvent from a measuring cylinder and pour it into the flask. Shake the mixture in the flask carefully. Don't splash out of the bottle and put some glass capillaries or five-glazed porcelain pieces.

★ The device is as shown in the figure. The cleaned and dried branch of the water receiver is tightly mounted on the glass bottle so that the oblique opening of the branch enters the beaker 15-20cm, and then the condenser is connected to the receiver. The inner wall should be wiped dry with cotton in advance. During installation, the axial lines of the condenser tube and the moisture receiver should coincide with each other, and the oblique cut surface at the lower end of the condenser tube should be opposite to the branch pipe mouth of the receiver. To avoid steam overflow, apply cotton wool to the gap. When the temperature of the water entering the condenser tube is significantly different from the room temperature, apply cotton wool glue to the gap between the plugs. When the temperature of the water entering the condenser tube is significantly different from the room temperature, the upper end of the condensation tube should be plugged with cotton to avoid air in the air. Water vapor enters the condensation tube and condenses.

★ Dimensions: 690X260X210mm

★ Weight: 8.5kg

瀝青含水量測(cè)定儀試驗(yàn)步驟：

★加熱燒瓶并控制冷凝液的回流速度，使冷凝管的斜口保持每秒滴下2-5滴液體。

★回餾過(guò)程中，水分接受器中水將打到A大容積刻度前，停止加熱，待無(wú)溶劑滴出時(shí)，迅速取下接受器，并將溶劑倒入一量筒中，然后裝好繼續(xù)加熱回餾。

★回餾將近完畢時(shí)，如果冷凝管內(nèi)壁沾有水滴，應(yīng)使燒瓶中的混合液在短時(shí)間內(nèi)劇烈沸騰，利用冷凝的溶劑將水滴盡量洗入接受器內(nèi)。

★接受器收集的水體積不再增加，而且上層的溶劑透明時(shí)，應(yīng)停止加熱。

★停止加熱后，如冷凝管內(nèi)壁仍有水滴，應(yīng)從冷凝管上端倒入溶劑，把水滴沖進(jìn)接受器，如溶劑沖洗依然無(wú)效，**用細(xì)玻璃棒帶有橡皮的一端，把冷凝器內(nèi)的水刮到接受器中。

★使玻璃冷卻后，將儀器拆卸，讀記接受器內(nèi)或量筒中水分的體積（Vm） 當(dāng)接受器的溶劑呈現(xiàn)渾濁，且管底收集的水分不超過(guò)0.2ml時(shí)，將接受器放入熱水浸20-30分鐘，使溶劑澄清，再將接受器冷卻至室溫后，才讀記管底收集水分的體積。

Test steps of asphalt water content tester:

★ Heat the flask and control the reflux rate of the condensate, so that the oblique opening of the condensate tube keeps dropping 2-5 drops of liquid per second.

★ During the distillation process, the water in the water receiver will hit the A large volume scale before stopping heating. When no solvent drips out, quickly remove the receiver, pour the solvent into a graduated cylinder, and then install it to continue heating Back to distillation.

★ When the retorting is almost completed, if the inner wall of the condensation tube is dripped with water, the mixture in the flask should be boiled violently in a short time, and the water droplets should be washed into the receiver as much as possible using the condensed solvent.

★ When the volume of water collected by the receiver no longer increases, and the solvent in the upper layer is completely transparent, the heating should be stopped.

★ After stopping heating, if there is still water droplets on the inner wall of the condenser tube, pour the solvent from the upper end of the condenser tube and flush the water droplets into the receiver. If the solvent rinse is still not effective, ** use a thin glass rod with the rubber end to put the inside of the condenser. Water into the receiver.

★ After cooling the glass, disassemble the instrument, and record the volume of water in the receiver or graduated cylinder (Vm). When the solvent in the receiver is turbid and the water collected in the bottom of the tube does not exceed 0.2ml, place the receiver in the heat. Immerse in water for 20-30 minutes to clarify the solvent. After the receiver is cooled to room temperature, read the volume of water collected at the bottom of the tube.

LHS-1瀝青含水量測(cè)定儀計(jì)算公式:

試樣含水量的質(zhì)量百分率按下列公式計(jì)算：

Pw=Vw/（m2-m1）.Pw***

式中：Pw-試樣含水量（%）

Vw-接受器中水分的體積（ml）

m1-玻璃燒瓶質(zhì)量（g）

m2-玻璃燒餅與試樣合計(jì)質(zhì)量（g）

Pw-水的密度（1g/ml）

LHS-1 Asphalt Moisture Meter Calculation Formula:

The mass percentage of the water content of the sample is calculated according to the following formula:

Pw = Vw / （m2-m1） .Pw ***

In the formula: Pw- moisture content of the sample (%)

Vw- volume of water in the receiver (ml)

m1-mass of glass flask (g)

m2-Total mass of glass cake and sample (g)

Pw-density of water (1g / ml)

LHS-1瀝青含水量測(cè)定儀緊密度或允許差:

對(duì)粘稠石油瀝青，若接受器中的水不足1ml時(shí)，重復(fù)性試驗(yàn)精度的允許差為0.1ml，再現(xiàn)性試驗(yàn)精度的允差為0.2ml，若接受器中的水為1.1-25ml時(shí)，重復(fù)性試驗(yàn)精度的允許差為0.1ml或平均值的2%，再現(xiàn)性試驗(yàn)精度的允許差為0.2ml或平均值的10%

對(duì)乳化瀝青，重復(fù)性試驗(yàn)精度的允許差為0.8%，再現(xiàn)性試驗(yàn)精度的允許差為2.0%.

LHS-1 bitumen moisture meter tightness or allowable difference:

For viscous petroleum asphalt, if the water in the receiver is less than 1ml, the allowable difference in repeatability test accuracy is 0.1ml, and the allowable difference in repeatability test accuracy is 0.2ml. The tolerance of the accuracy of the repeatability test is 0.1ml or 2% of the average value, and the tolerance of the repeatability test accuracy is 0.2ml or 10% of the average value

For emulsified asphalt, the allowable difference in repeatability test accuracy is 0.8%, and the allowable difference in repeatability test accuracy is 2.0%.

瀝青含水量測(cè)定儀結(jié)構(gòu)：

①玻璃燒杯：硬玻璃制、圓底、短頸、直徑100mm，容積500ml

②、水分接受器：容積在0.3ml以下設(shè)有10等分刻度，0.3-1ml間設(shè)有7等分的刻度，1-10ml間每份度為0.2ml。但精度相鄰的水分接受器也可使用。

③、冷凝管：至形、或球形，內(nèi)管直徑10mm，全長(zhǎng)350-400Mm,末端斜切，套管直徑40-50mm長(zhǎng)250-300mm，進(jìn)出水管口接近兩端，但尺寸相鄰的冷凝管也可使用。

④、鐵架：附有鐵環(huán)及鐵夾。⑤、加熱器：電爐或燃?xì)鉅t

⑥、底盤(pán)

Structure of asphalt water content tester:

① Glass beaker: made of hard glass, round bottom, short neck, diameter 100mm, volume 500ml

② Moisture receiver: 10-division scale is set for volume below 0.3ml, 7-division scale is set between 0.3-1ml, and 0.2ml is used in 1-10ml. But adjacent moisture receivers can also be used.

③ Condensate tube: to shape or spherical, inner tube diameter 10mm, total length 350-400Mm, end beveled, casing diameter 40-50mm long 250-300mm, inlet and outlet pipe mouths are close to both ends, but the size of the adjacent condensation Tubes are also available.

④ Iron frame: iron ring and iron clip are attached. ⑤ Heater: electric stove or gas stove

⑥ Chassis

瀝青含水量測(cè)定儀試驗(yàn)配備：

1、天平：感量不大于0.1g。

2、量筒：100ml，刻度：1ml

3、石棉網(wǎng)

4、其他：玻璃毛細(xì)管（一端封閉）或紅噶的五軸磁片，帶橡皮頭的玻璃棒等。

5、溶劑：二或與二的混合物等，工業(yè)醇。

Test equipment for asphalt water content tester:

1. Balance: Sensitivity is not more than 0.1g.

2. Measuring cylinder: 100ml, scale: 1ml

3.Asbestos net

4. Others: glass capillary (closed at one end) or Hongma's five-axis magnetic sheet, glass rod with rubber head, etc.

5. Solvent: two or a mixture with two, etc., industrial alcohol.

LHS-1瀝青含水量測(cè)定儀注意事項(xiàng):

本儀器不能一時(shí)加溫過(guò)快。

防止短口圓底燒瓶。

Note for LHS-1 Asphalt Moisture Analyzer:

This instrument cannot be heated too quickly.

Prevent short mouth round bottom flasks.