EN14370 liquid surface tension meter platinum ring test method
EN14370 liquid surface tension meter platinum ring test method:
1. Platinum ring test method;
2. When using the platinum ring test method, the display value automatically locks the maximum force value of the sample, and then calculates the surface/interface tension value through the attached computing software or selects the data processing software to be automatically calculated by the computer;
3. Platinum ring size: wire radius is 0.185mm, ring radius is 9.55mm, ring circumference is 60mm;
4. The platinum ring test method fully conforms to the following domestic and international standards:
GB/T 22237-2008 determination of surface tension of surfactants
JB/T 9388-2002 interface tensiometer technical conditions
Determination of surface tension by natural emulsion ring method
Determination of surface tension of synthetic latex by SH/T 1156-95
Petroleum products -- determination of interfacial tension between oil and water -- ring method
ISO 1409-1995 determination of surface tension of plastics, rubber, polymer dispersion and latex
ISO 6295-1983 petroleum products -- determination of oil-water interfacial tension of mineral oils (ring method)
GB/T 5549(iso304-1985) surface tension was measured by pull-up membrane method
Iso 14090-82, ASTM D1417, EN14370, zb2025-93, gb2960-82, gb6541-86 and other standards;
5. Automatic measurement to avoid human error;
6. Full range automatic correction, accurate and reliable data, excellent repeatability;
7. The full range is reset with one key, instantly completed, and the zero position is stable without drift;
8. Manual lifting and automatic measurement;
9. Reasonable instrument structure, independent work, no need for any additional equipment (such as external computer, etc.), or optional computer for data processing;
10. Interfacial tension between non-mixed liquids such as oil/water interface can be measured;
11. Data processing software (optional) : it can automatically collect test data, display test curve in real time, and automatically enlarge, access and print the curve.The original data can be converted into Excel files, which can automatically calculate the surface tension value when using the platinum ring test method;
12. Special accuracy calibration function (optional) : with 2 times distilled water and pure ethanol as the standard, the overall test error of the instrument is automatically calibrated, which can ensure the accurate state of the instrument when it leaves the factory for a long time;
13. Unique temperature automatic compensation function (optional) : take 2 times distilled water and pure ethanol as the standard, automatically summarize the test value of samples at different temperatures to 20℃;
14. With a variety of temperature control options, meet different test requirements;
15. Meet the special requirements of users and undertake non-standard products.
Technical parameters
Model | BZY-101 | BZY-201 |
Measuring mode | standard configuration is plate method (optional ring method ) | |
Operating mode | Sample disc manual elevating, fully automatic measuring | |
Measuring range | 0 to 600 mN/m | 0 to 400 mN/m |
Sensitivity | 0.1 mN/m | 0.01 mN/m |
Repeatability | ≤±0.2 mN/m (test standard sample) | ≤±0.1 mN/m (test standard sample) |
Data display | wide visual angle, backlight LCD screen | |
Measuring time | 10s~15s for low viscometer sample | |
External dimensions | 320×200×340 (L×W×H, mm) | |
Power supply | 220v or 110v 50HZ/60HZ | |
Net weight | 7 kg | 9 kg |
Instrument application range
- Ink, printing ink, oil paint industry: analyzing the wettability in printing and coating, product research and development, quality control
- Cleaning agent industry: analyzing the absorbing rate, property and a suitable concentration of any surface activating agent
- Cosmetic industry: analyzing the dispersibility, stability and wettability of any emulsion or suspending agent
- Electroplating industry: analyzing the surface tension of any electroplating solution for quality control
- Pesticide industry: preparing any additive agent and analyzing the wettability
- Petroleum industry and auxiliary agent industry, etc
What’s the “Surface tension”?
It is widely known that the liquid property can be explained by the inter-attractive force among molecules. Such molecular attraction is called as molecular cohesive force or Van Der Waals force. And surface tension, interface tension and other similar phenomena are used to explain the basic physical phenomena of molecular cohesion.
Concretely, the molecules of the liquid on the surface are under a stress which is different from the body inside. The molecules inside the body are under a symmetrical and balanced stress while the molecules on the surface are attracted by the molecules inside the body without any counterbalance. It means that the molecules on the surface are under a stress which pulls them inward the body. In other words, the force diagram will decrease the surface area to remove the unbalance. In thermodynamics it is defined that: “Surface tension” it the force which can decrease the surface energy in the system to the minimum, i.e. the free energy (J/m2) on a unit area is also the minimum energy required to form or enlarge the interface of the unit area. The value is complying with the surface energy (N/m). Generally, surface tension is used to represent the surface free energy which determines the physiochemical phenomena on the liquid surface. In daily life, a dewdrop on lotus leaf in the morning and the cambered surface of water in a glass, etc are all the representation of surface tension.
- Step 1Find your interested products by search keywords
- Step 2Contact the supplier by clicking ”Enquire” or “request meeting” button, otherwise, you also could consult our import consultant.
- Step 3After verifying your email, get response from suppliers or our trade manager will contact you as soon as possible
- Step 4Set up meeting with the Chinese supplier without language barrier