Bubble viscosity tube

Bubble viscometer

Bubble viscometers can be used to quickly measure the kinematic viscosity of known fluids such as resins and varnishes,

*The viscosity of the sealed liquid standard has * stability;

*Shelf life of 15 years;

*Cleaning sample test tubes is fast and convenient;

*The glass tube does not have a spout, so it will not cause blockage or incorrect measurement;

*Under temperature control, it is easy to obtain readings with good reproducibility;

The direct time method uses a glass tube engraved with three "timelines" to measure the "bubble second", which is the time required for a bubble to pass vertically through a known distance in a glass tube of known diameter. The 'bubble second' can be transformed into a Stokes value. The time required for bubbles to rise is directly proportional to the viscosity of the fluid, and the faster the bubbles rise, the lower the viscosity of the fluid.

Standard: AOC Method Ka 6-63

ASTM D1131, D1545, D1725

FTMS 141a Method 4272

Operation steps of bubble viscometer:

*Knowing the approximate viscosity value, select four standard glass tubes that are closest in viscosity to the sample;

*Fill the sample glass tube with fluid, insert a cork stopper, and use a test tube holder (model 0577) to insert four glass tubes labeled with letters into the test tube holder;

*Reverse the test tube rack and visually compare which glass tube labeled with a letter has the closest bubble rise time to the sample glass tube;

*A timer can be used to measure the number of seconds bubbles rise in sealed glass tubes and sample glass tubes;

Please note that the following factors will affect the accuracy when conducting the experiment:

Temperature change of 1 ° C=10% error

Verticality control: 5 ° tilt=10% error

Inner diameter control of glass tube 0.1mm=2% error

ASTM D 1545Timing method:From the bottom of the glass tube upwards, there are27mmThe100mmThe108mmThree amber rings mark, first install the fluid into the glass tube100mmAt the line, insert a cork stopper until108mmAt the line, then the glass tube is reversed to the bottom upwards, and then reversed back to its original state, when the bubble passes through27mmStart timing at the line, and the bubble rises upwards100mmStop timing at the line.

Order information: Technical specifications:

Model name Stoke

0500 Bubble Viscometer A5-A1 0.05-0.31 with 5 bubble viscosity tubes standard A5-A1, 2 * empty glass tubes
0600 Bubble Viscometer A5-A1 with Certificate
0510 Bubble Viscometer A-T 0.5-5.5 with 20 bubble viscosity tubes standard A-T,2 * empty glass tubes
0610 Bubble Viscometer A-T with Certificate
0540 Bubble Viscometer U-Z6 6.66-151 contains 12 standard U-Z6, 2 * empty glass tubes
0640 Bubble Viscometer U-Z6 with Certificate
0560 Bubble Viscometer Z7-Z10 406-1190 contains 4 standard AZ7-Z10,2 pieces*Empty glass tube

0660 Bubble Viscometer Z7-Z10Bring a certificate

Basic configuration:

Bubble viscometer, bubble viscometer standard, storage box, 2 empty glass tubes, operation manual;

Order information: Technical specifications:

Model name

0571 empty glass tube * printed with amber GARDNER MT logo, with an inner diameter of 10.65 after three inspections±0.025mm

0573 Air Glass Tube Grade BPrinted with amber GARDNER BT logo, ordinary glass tube for daily use and factory testing, with an inner diameter of 10.75
0575 The N-grade empty glass tube is printed with the amber GARDNER logo, and the inner diameter has been inspected three times to be 10.65±0.025mm， There are additional markings at the bottom of the glass tube for display73mm Bubble Path: ASTM D1545 Project: Timing Glass Tube
0576 cork stopper is used to store samples and is suitable for 150 glass tubes of all grades
The 0577 test tube rack is a metal rack with plastic handles. The standard and sample are placed in parallel in a vertical position, and each rack can hold 5 glass tubes. The bottom of the rack is flat and can be placed vertically in the sink or on the experimental platform. The test tube is not included in the supply

Basic configuration:

144 empty glass tubes per package, with cork stoppers attached

Order information: Technical specifications:

Model name, model name, close to Lisstock, approximate seconds
0501 A5 0601School StandardsA5 5.1 0.650
0502 A4 0602 calibration standardA4 7.1 0.663
0503 A3 0603 calibration standardA3 14.0 0.720
0504 A2 0604 calibration standardA2 21.3 0.767
0505 A1 0605 calibration standardA1 31.0 0.820
0511 A 0611 calibration standardA 53.6 0.936
0512 B 0612 calibration standardB 68.8 1.01
0513 C 0613 calibration standardC 92.7 1.21
0514 D 0614 calibration standardD 102.9 1.30
0515 E 0615 calibration standardE 122.7 1.50
0516 F 0616 calibration standardF 151.9 1.67
0517 G 0617 calibration standardG 160.0 1.85
0518 H 0618 calibration standardH 210.8 2.15
0519 I 0619 calibration standardI 224.2 2.32
0520 J 0620 calibration standardJ 268.2 2.75
0521 K 0621 calibration standardK 287.9 3.02
0522 L 0622 calibration standardL 302.3 3.19
0523 M 0623 calibration standardM 335.4 3.45
0524 N 0624 calibration standardN 345.2 3.69
0525 O 0625 calibration standardO 377.9 3.98
0526 P 0626 calibration standardP 408.8 4.24
0527 Q 0627 calibration standardQ 441.8 4.54
0528 R 0628 calibration standardR 467.4 4.85
0529 S 0629 calibration standardS 517.7 5.29
0530 T 0630 calibration standardT 547.2 6.00
0541 U 0641 calibration standardU 665.9 6.79
0542 V 0642 calibration standardV 889.2 8.97
0543 W 0643 calibration standardW 1073 11.5
0544 X 0644 calibration standardX 1200 14.8
0545 Y 0645 calibration standardY 1737 18.4
0546 Z 0646 calibration standardZ 2289 23.7
0547 Z1 0647 calibration standardZ1 2909 30.7
0548 Z2 0648 calibration standardZ2 4056 40.2
0549 Z3 0649 calibration standardZ3 4840 48.0
0550 Z4 0650 calibration standardZ4 7241 72.2
0551 Z5 0651 calibration standardZ5 9917 105
0552 Z6 0652 calibration standardZ6 15080 158
0561 Z7 0661 calibration standardZ7 40650 422
0562 Z8 0662 calibration standardZ8 73280 764
0563 Z9 0663 calibration standardZ9 91500 955
0564 Z10 0664 calibration standardZ10 119000 1240