毛细管粘度计原理和使用说明
时间:2017-07-31 阅读:15527
毛细管粘度计按结构、形状可分为乌氏、芬氏、平氏、逆流四种。它们测定的样品粘度是运动粘度。已广泛地运用在石油、化工、轻工、机电、国防、交通、煤碳、冶金、医药、食品、造纸、纺织、科研、高等院校等单位。
测定原理:在一定温度下,当液体在直立的毛细管中,以*湿润管壁的状态流动时,其运动粘度与流动时间成正比。测定时,用已知运动粘度的液体作标准,测量其从毛细管粘度计流出的时间,再测量试样自同一粘度计流出的时间,则可计算出试样的粘度。 正确使用毛细管粘度计,对确保产品质量和科研数据的准确是很重要的。 | |||||||||||||||||||||||||||||||||||||
三、恒温及调垂直: | |||||||||||||||||||||||||||||||||||||
把装好样品的粘度计放到恒温槽架子上(夹子上),把毛细管左、右、前、后调垂直,在测定温度下恒温10分钟,开始测定,记下*到第二圈线间流出时间,一般选行三次(去掉不正常)取平均数。 | |||||||||||||||||||||||||||||||||||||
四、可用毛细管内径、测样品粘度范围、可参考下表:(选用的粘度计被测样品流出时间不低于200秒) | |||||||||||||||||||||||||||||||||||||
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美国Cannon玻璃毛细粘度管测试方法:ASTM D445, ASTM D446, ASTM D2170方法,透明和不透明液体运动粘度测定法 (包括计算动力粘度),玻璃毛细管运动粘度计的规格及使用说明,沥青运动粘度的试验方法
原理:本法用以测定透明与不透明产品的粘度,它是在已知的温度下,利用液体本身的重力流动性(gravity-flow)来测定一定体积的液体通过经校正后的毛细玻璃管粘度计所需的时间。根据所测出的动力粘度可计算出公制粘度或粘度(dynamic viscosity)。
方法概要:取一定体积的液体在严格的温度与固定的液面高度的控制下,使其流经毛细管粘度计而计算其流经时间。根据流经时间与粘度计的校正常数的乘积即可得动力粘度。
所需仪器:
1. 粘度计: 校正过后的玻璃毛细管,其所测得的粘度能符合于所要求的复验准确度再试准确度。
2. 粘度计支架: 能将粘度计在恒温槽中架持稳固,且能使其垂直竖立。
3. 粘度计调温槽: 内盛装透明液体,能使样品于粘度计内较液面低20mm以下,或高于槽底20mm以上,能保持槽内温度的变动于15至100℃间低于±0.02℃的变化,在此温度范围以外,亦不超过±0.05℃的温度变化。
4. 测温器: 检验动力粘度计的温度计内盛有适当的液体,使之能符合温度范围,温度计使用前均需校正,校正后准确度在±0.02℃,若其它测温器有上述的度时亦可采用。
5. 定时器: 秒表或弹簧装置的定时器均可使用,但其刻度至少在0.1秒,其测定200秒至900秒的误差在±0.07%以内。
类型一:Cannon-Fenske、Cannon-Ubbelohde Cannon-Ubbelohde Dilution Viscometers | ||
毛细粘度管号 | 常数CSt/秒 | 范围CST |
NO.25 | 0.002 | 0.5-2 |
NO.50 | 0.004 | 0.8-4 |
NO.75 | 0.008 | 1.6-8 |
00 | 0.015 | 3--15 |
50 | 0.035 | 7-35 |
NO.200 | 0.1 | 20-100 |
NO.300 | 0.25 | 50-250 |
NO.350 | 0.5 | 100-500 |
NO.400 | 1.2 | 240-1200 |
NO.450 | 2.5 | 500-2500 |
NO.500 | 8 | 1600-8000 |
NO.600 | 20 | 4000-20000 |
NO.650 | 45 | 9000-45000 |
NO.700 | 100 | 20000-100000 |
类型二:Ubbelohde Viscometers | ||
NO.0 | 0.001 | 0.3-1 |
NO.0C | 0.003 | 0.6-3 |
NO.0B | 0.005 | 1--5 |
0.01 | 2--10 | |
C | 0.03 | 6--30 |
B | 0.05 | 10-50 |
NO.2 | 0.1 | 20-100 |
NO.2C | 0.3 | 60-300 |
NO.2B | 0.5 | 100-500 |
NO.3 | 1 | 200-1000 |
NO.3C | 3 | 600-3000 |
NO.3B | 5 | 1000-5000 |
NO.4 | 10 | 2000-10000 |
NO.4C | 30 | 6000-30000 |
NO.4B | 50 | 10000-50000 |
NO.5 | 100 | 20000-100000 |
类型三:Zeitfuchs Cross-arm | ||
0.003 | 0.6-3 | |
NO.2 | 0.01 | 2--10 |
NO.3 | 0.03 | 6--30 |
NO.4 | 0.1 | 20-100 |
NO.5 | 0.3 | 60-300 |
NO.6 | 1 | 200-1000 |
NO.7 | 3 | 600-3000 |
NO.8 | 10 | 2000-10000 |
NO.9 | 30 | 6000-30000 |
0 | 100 | 20000-100000 |
Ubbelohde Viscometers | |||
Uncalibrated UBU | Calibrated UBC | Calibrated UBXC | |
NO.0 | 9721-N50 | 9721-R50 | 9721-U50 |
NO.0C | 9721-N53 | 9721-R53 | 9721-U53 |
NO.0B | 9721-N56 | 9721-R56 | 9721-U56 |
9721-N59 | 9721-R59 | 9721-U59 | |
C | 9721-N62 | 9721-R62 | 9721-U62 |
B | 9721-N65 | 9721-R65 | 9721-U65 |
NO.2 | 9721-N68 | 9721-R68 | 9721-U68 |
NO.2C | 9721-N71 | 9721-R71 | 9721-U71 |
NO.2B | 9721-N74 | 9721-R74 | 9721-U74 |
NO.3 | 9721-N77 | 9721-R77 | 9721-U77 |
NO.3C | 9721-N80 | 9721-R80 | 9721-U80 |
NO.3B | 9721-N83 | 9721-R83 | 9721-U83 |
NO.4 | 9721-N86 | 9721-R86 | 9721-U86 |
NO.4C | 9721-N89 | 9721-R89 | 9721-U89 |
NO.4B | 9721-N92 | 9721-R92 | 9721-U92 |
NO.5 | 9721-N95 | 9721-R95 | 9721-U95 |
Cannon-Fenske Routine | ||
Uncalibrated CFRU | Calibrated CFRC | |
NO.25 | 9721-A50 | 9721-B50 |
NO.50 | 9721-A53 | 9721-B53 |
NO.75 | 9721-A56 | 9721-B56 |
00 | 9721-A59 | 9721-B59 |
50 | 9721-A62 | 9721-B62 |
NO.200 | 9721-A65 | 9721-B65 |
NO.300 | 9721-A68 | 9721-B68 |
NO.350 | 9721-A71 | 9721-B71 |
NO.400 | 9721-A74 | 9721-B74 |
NO.450 | 9721-A77 | 9721-B77 |
NO.500 | 9721-A80 | 9721-B80 |
NO.600 | 9721-A83 | 9721-B83 |
NO.650 | 9721-A86 | 9721-B86 |
NO.700 | 9721-A89 | 9721-B89 |
Cannon-Fenske opaque | ||
Uncalibrated CFOU | Calibrated CFOC | |
NO.25 | 9721-E50 | 9721-F50 |
NO.50 | 9721-E53 | 9721-F53 |
NO.75 | 9721-E56 | 9721-F56 |
00 | 9721-E59 | 9721-F59 |
50 | 9721-E62 | 9721-F62 |
NO.200 | 9721-E65 | 9721-F65 |
NO.300 | 9721-E68 | 9721-F68 |
NO.350 | 9721-E71 | 9721-F71 |
NO.400 | 9721-E74 | 9721-F74 |
NO.450 | 9721-E77 | 9721-F77 |
NO.500 | 9721-E80 | 9721-F80 |
NO.600 | 9721-E83 | 9721-F83 |
NO.650 | 9721-E86 | 9721-F86 |
NO.700 | 9721-E89 | 9721-F89 |
Cannon-Ubbelohde Semi-Micro Viscometers | ||
Uncalibrated CUSMU | Calibrated CUSMC | |
NO.25 | 9721-G50 | 9721-H50 |
NO.50 | 9721-G53 | 9721-H53 |
NO.75 | 9721-G56 | 9721-H56 |
00 | 9721-G59 | 9721-H59 |
50 | 9721-G62 | 9721-H62 |
NO.200 | 9721-G65 | 9721-H65 |
NO.300 | 9721-G68 | 9721-H68 |
NO.350 | 9721-G71 | 9721-H71 |
NO.400 | 9721-G74 | 9721-H74 |
NO.450 | 9721-G77 | 9721-H77 |
NO.500 | 9721-G80 | 9721-H80 |
NO.600 | 9721-G83 | 9721-H83 |
NO.25 | 9721-G50 | 9721-H50 |
NO.50 | 9721-G53 | 9721-H53 |
Cannon-Ubbelohde | ||
Uncalibrated CUU | Calibrated CUC | |
NO.25 | 9721-J50 | 9721-K50 |
NO.50 | 9721-J53 | 9721-K53 |
NO.75 | 9721-J56 | 9721-K56 |
00 | 9721-J59 | 9721-K59 |
50 | 9721-J62 | 9721-K62 |
NO.200 | 9721-J65 | 9721-K65 |
NO.300 | 9721-J68 | 9721-K68 |
NO.350 | 9721-J71 | 9721-K71 |
NO.400 | 9721-J74 | 9721-K74 |
NO.450 | 9721-J77 | 9721-K77 |
NO.500 | 9721-J80 | 9721-K80 |
NO.600 | 9721-J83 | 9721-K83 |
NO.650 | 9721-J86 | 9721-K86 |
NO.700 | 9721-J89 | 9721-K89 |
Cannon-Ubbelohde Dilution Viscometers | ||
Uncalibrated CUDU | Calibrated CUDC | |
NO.25 | 9721-L50 | 9721-M50 |
NO.50 | 9721-L53 | 9721-M53 |
NO.75 | 9721-L56 | 9721-M56 |
00 | 9721-L59 | 9721-M59 |
50 | 9721-L62 | 9721-M62 |
NO.200 | 9721-L65 | 9721-M65 |
NO.300 | 9721-L68 | 9721-M68 |
NO.350 | 9721-L71 | 9721-M71 |
NO.400 | 9721-L74 | 9721-M74 |
NO.450 | 9721-L77 | 9721-M77 |
NO.500 | 9721-L80 | 9721-M80 |
NO.600 | 9721-L83 | 9721-M83 |
Zeitfuchs Cross-arm Viscometers | ||
ZCAC | ZCAXC | |
9723-S50 | 9723-U50 | |
NO.2 | 9723-S53 | 9723-U53 |
NO.3 | 9723-S56 | 9723-U56 |
NO.4 | 9723-S59 | 9723-U59 |
NO.5 | 9723-S62 | 9723-U62 |
NO.6 | 9723-S65 | 9723-U65 |
NO.7 | 9723-S68 | 9723-U68 |
NO.8 | 9723-S71 | 9723-U71 |
NO.9 | 9723-S74 | 9723-U74 |
0 | 9723-S77 | 9723-U77 |
Modified Koppers Vacuum Viscometers | |
25 | 9724-W50 |
50 | 9724-W55 |
100 | 9724-W60 |
200 | 9724-W65 |
400 | 9724-W70 |
Asphalt Institute Vacuum | |
25 | 9724-R50 |
50 | 9724-R55 |
100 | 9724-R60 |
200 | 9724-R65 |
400R | 9724-R70 |
800R | 9724-R75 |
货号 | 玻璃毛细粘度管配件 |
9726-M50 | H100塑料粘度夹(适合Cannon-Fenske) |
9726-M70 | H101塑料粘度夹(适合Cannon-Ubbelohde) |
9726-M53 | H110 Neoprene粘度夹(适合Cannon-Fenske) |
9726-M79 | H113铜粘度夹(适合Cannon-Fenske Opaque) |
9726-M95 | H115 Neoprene粘度夹(适合Zeitfuchs) |
9726-M73 | H120 Neoprene粘度夹(适合Cannon-Ubbelohde) |
9726-M82 | H130铜粘度夹(适合Ubbelohde) |
9726-M76 | H131铜粘度夹(适合Cannon-Ubbelohde) |
9726-M98 | H132铜粘度夹(适合Zeitfuchs) |
9726-M99 | H133 BS/IP/SLSuspendedLevel |
9726-N15 | H140粘度计支架 |
9726-N30 | H141粘度计支架 |
9726-N45 | H142 Cannon-Ubbelohde FilterStick |
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