This standard specifies the technical requirements, test methods, test rules and marking, packaging, transportation and storage of interfacial tension meters. JB/T 9388-2002 Technical requirements for single-sided tension meters JB/T9388-2002 Standard download decompression password: www.bzxz.net

Preface,
■ Scope
2 Normative references
3 Technical requirements.….．
3.E Environment and working conditions
3.2 Indication error of tension value of tension meter
3.3 Indication and display device of tension meter
3.4 ​​Sample holder and sample broken
3.5 Chrome wire ring
3.6 Lever replacement and fine adjustment device
Requirements for tension meter
4 Test method
4.1 Test conditions
|Instruments, tools and measuring tools for inspection
Inspection of indication error and indication precision error of tensiometer 4.3
4.4 Inspection of indication and display device of tensiometer 4.5 Inspection of sample holder and sample cup
4. Inspection of damage of platinum wire
4.7 Inspection of lever arm and fine adjustment device
4.8 Inspection of other tension requirements
5 Inspection rules
6 Marking, packaging, labeling and storage
JB/T9388—20D2
3B/T9388—2002
This standard is a revision of Technical Specification 3 of ZV72025-1989 Interfacial Tension Meter. During the revision, 2HN72025-1989 was revised according to the review of G/T Standardization Work Guide 3. The continental test positioner specified in this standard is not equivalent to the national standard IS0149:15 Plastic rubber polymer split and latex (unintegrated and artificial) surface tension measurement (by method), which meets the zero requirement of the international standard for the interfacial tension meter. This standard has changed from 7.RN72025-1989 in the following major technical contents. A foreword has been added: Taking into account the characteristics of the industry, the "Inspection Rules" (see Chapter S) have been rewritten; "Marking, Packaging, Transportation and Compensation" has been greatly modified, and the basic standard T61471992 (see Chapter 6) has been quoted. The original industry standard ZBN72 (25-1989 of the People's Republic of China) has been revised. The original standard is published by China Machinery Industry Federation. This standard is under the jurisdiction of the National Testing Standards Acceptance Committee. The originators of this standard are Changchun Testing Machinery Research Institute and Chengde Testing Machinery Factory. The main originators of this standard are An Zonghua, Zhao Lingyun, Yongxiang. This standard was first issued in March 1989 with the professional standard number ZBN72U25-1989. 1 Scope Technical conditions for surface tension meter JB/T9388-2002 The standard specifies the technical requirements, inspection methods, inspection rules and labeling, packaging, transportation and storage of surface tension meter. This standard applies to 0mNm--200mNm dynamic and electric surface tension meter Instrument (hereinafter referred to as tension instrument) 2 Normative reference documents
The clauses in the following documents become the clauses of this standard through reference in this standard. For any dated referenced documents, all subsequent amendments (excluding those in the negotiation) are not applicable to this standard. However, the parties who reach an agreement based on this standard may use the latest versions of these documents. For any undated referenced documents, the latest version shall apply to this standard. 21-12 Technical requirements for testing machine
JB6147-1992 Technical requirements for testing machine packaging, packaging marking, storage and transportation 3 Technical requirements
3.1 Environment and working environment
The tension position is as follows Work normally under the following conditions: a) In room humidity range of 10--35℃:
b) Correctly placed on a solid foundation:
In a vibration-free environment:
Surrounded by solid and non-corrosive media:
The fluctuation of the feedback voltage should be within 2% of the rated voltage.
3.2 Indication error of tension value of tension meter
a) The maximum allowable relative error of the indication should be ± 2% of the theoretical tension value: b) The relative error of the value should not be greater than 2%. 3.3: Indication and display of tension meter
3.3.1: The graduation lines and symbols of the indicating device should be clear, the lines should be divided into long and short, and the spacing between the lines should be approximately the same. 3.3.2 The minimum scale value is mN/m, and the estimation capability of tension value is 0.1mN/m3.3.3 The allowable zero return error of tension is 0.5% above the maximum tension value. 3.3.4 The digital display and setting are stable and reliable, and the zero drift should not exceed 0.2mN/m within 15min3.4 Sample seat and sample cup
3.4.1 The lifting and lowering of the sample seat should be smooth. There should be no collision.3.4.2 The up and down stroke of the sample library should not be less than 18mm3.4.3 The lowering speed of the sample seat of the electric tension meter is 15mm/tia±2ttu/minl. 3.4.4 The tower sample is a drum or instrument with an inner diameter of less than 45m and a capacity of 50m. 3.5 Pin Wire Ring
3.5.1 The wire is made of a pin wire with a radius of 0.185mm, and the nominal value of its circumference is 60mm or 4mm (corresponding to an inner diameter of 9.55mm or 6.37mm respectively.
3.52 The circumference of the pin wire ring should be on the same level, and the error should not exceed 1mm. 3.6 Lever and fine-tuning device
3.6.1 The obstacle should be able to move up and down freely and flexibly, and the swing should not be less than one time. IB/T9388--2002
3.2 The fine-tuning device should be sensitive and reliable. Flexible rotation. 3.7 Other requirements for the tensioner
Account force meter The requirements of this standard, equipment and appearance quality shall comply with the provisions of Chapter 3, Chapter 6 and Chapter 7 of GB 2611-1992. 4 Inspection methods 4.1 Inspection cases The inspection shall be carried out under the conditions specified in 3.1. 4.2 Inspection instruments, tools and tools The inspection equipment and tools include the third-class standard weights that have been calibrated by the company. Microscope: stopwatch: depth gauge and other tools. 4.3 Tension error and repeatability error of indication The error of indication shall be tested with standard code origin! The repeatability of the minimum value shall be tested from 5 points of the measuring range: each point shall be pressed three times. The error is calculated according to the formula (1) and formula (2): q=
In the formula:
Indication error:
b Indication reproducibility relative error:
·…—The arithmetic value of the measured tension value
The minimum of the measured tension values:
Theoretical calculated tension value
F value is calculated according to the formula (3):
XEOD·
In the formula:
Standard base weight: converted to kg:
-Local tension rate, unit is m/s,
Platinum wire ring circumference, unit is
4.4 Inspection of the indication and display device of the instrument × 100%
3.3 The actual point drift is specified by the second method 4.5 Inspection of sample holder and sample cup
4.5.1 Inspection with stopwatch and ruler: 5.4.3 Time observation inspection 3.4.1. 4.5.2 Inspection with universal measuring tool: 3.4.2 3.4.4
4.6 Inspection of wire loop
4.6.1 Measure the inner and outer diameters of the wire in different directions with a universal tool: 3.5.1. Calculate the circumference according to formula (4):
Where:
L is the circumference of the wire, in mm
The median value of the average value of the three measurements of the inner diameter and the average value of the two measurements of the outer diameter is III. 4.6.2 Place the wire loop on a horizontal platform and inspect as required 3.5.2.4.7 Inspection of lever arm and fine adjustment
Practical inspection shall be carried out as required. www.bzxz.net
JB/T9388—2002
4.B Inspection of other requirements of tension meter
Basic requirements of tension meter, electrical equipment and appearance quality shall be inspected in accordance with the provisions of Chapter 3, Chapter 6 and Chapter 8 of JB/T2611-1992. 5 Inspection regulations
Each tension meter shall be inspected and qualified by the manufacturer's inspection department in accordance with all the requirements of this standard before it can be shipped out of the factory, and a product certificate shall be attached: the certificate shall record the inspection of the tension meter! " Check the actual data of the main items. 6 Marking, packaging, transportation and storage
6.1 The tension meter should have a label, which includes: a) product name, model:
1) main number:
e) manufacturer's name;
2) manufacturing date:
e) manufacturing number:
e.2 The tension meter must be packaged in a waterproof, rust-proof and dust-proof composite protective package. 6.3 The packaging, packaging marking, transportation and storage of the tension meter should comply with B6147-1992 4.4.1, 4.4.4, 4.4.6. Provisions of Chapter 5 and Chapter 6:
6.4 For products that comply with the 4 standards, the water standard number (code, serial number, year! and name) shall be indicated on the product or product packaging or product instruction manual.
6.5 The random technical documents of the tensiometer shall comply with the provisions of Chapter 9 of GB 2611-1992. Where:
L is the circumference of the platinum wire, in mmt
The median of the average value of the three measurements of the inner diameter and the average value of the two measurements of the outer diameter is III. 4.6.2 Place the platinum wire ring on the horizontal platform and inspect according to the requirements of 3.5.2.4.7 Inspection of lever arm and fine-tuning load
Perform actual inspection as required.
JB/T9388—2002
4.B Inspection of other requirements for tension meter
Basic requirements, electrical equipment and appearance quality of tension meter shall be inspected in accordance with the provisions of Chapter 3, Chapter 6 and Chapter 8 of JB/T2611-1992. 5 Inspection regulations
Each tension meter shall be inspected and qualified by the manufacturer's inspection department in accordance with all the requirements of this standard before it can be shipped out of the factory, and a product certificate of conformity shall be attached: The actual visual data of the main inspection items of the tension meter shall be recorded in the certificate. 6 Marking, packaging, transportation and storage
6.1 The tension meter shall have a brand, which includes: a) Product name, model:||t 1) Main data: 1) Manufacturer's name; 2) Date of manufacture: 3) Manufacturing number: 4) Tension meter must be packed in waterproof, rust-proof and dust-proof composite protective packaging. 6.3 The packaging, packaging mark, transportation and storage of tension meter shall comply with the provisions of 4.4.1, 4.4.4, 4.4.6, Chapter 5 and Chapter 6 of B6147-1992: 6.4 For products that implement 4 standards, the standard number (code, serial number, year) and name shall be marked on the product or product packaging or product manual. 6.5 The random technical documents of the tension meter shall comply with the provisions of Chapter 9 of GB 2611-1992.
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