JB/T 9737.1-2000 This standard is a revision of ZB E39 002-86 "Solid particle pollution level of hydraulic oil for truck cranes and tire cranes". The revised standard code refers to Chapter 2 of GB/T 14039-1993 "Solid particle pollution level code of hydraulic working medium"; the number constituting the code has changed. This standard is part of the JB/T 9737 "Hydraulic oil for truck cranes and tire cranes" series of standards: JB/T 9737.1-2000 Solid particle pollution level of hydraulic oil for truck cranes and tire cranes JB/T 9737.2-2000 Solid particle pollution measurement level of hydraulic oil for truck cranes and tire cranes JB/T 9737.3-2000 Selection and replacement of hydraulic oil for truck cranes and tire cranes This standard specifies the code for the solid particle pollution level in the working medium of the hydraulic system and the solid particle pollution level of hydraulic oil for truck cranes and tire cranes. This standard was first issued on November 4, 1986 as ZB E39 002-86, and the standard number was adjusted to JB/T 9737.1-1999 in April 1999. JB/T 9737.1-2000 Solid particle contamination level of hydraulic oil for truck cranes and tire cranes JB/T9737.1-2000 Standard download decompression password: www.bzxz.net

JB/T9737.1-2000
This standard is a revision of JB/T9737.1-1999 "Solid particle pollution level of hydraulic oil for truck cranes and tire cranes". Compared with JB/T9737.11999, the main technical contents of this standard have been modified as follows: - The code in Chapter 3 is composed of the code in Chapter 2 of GB/T14039-1993 "Hydraulic medium solid particle pollution level code";
The code number in the standard is 40.924, which is divided into 26 levels. The particle number range corresponding to each level is the number of solid particles contained in 1ml of hydraulic oil; while Z13E39002-86 "Solid particle pollution level of hydraulic oil for truck cranes and tire cranes" is divided into 31 levels according to the number of solid pollution particles in 100mL of pressurized oil, which is divided into C~30 codes. JB/T 9737 is composed of three standards under the general title of hydraulic oil for automobile cranes and tire cranes. This standard, together with JB/T 9737.2-2000 "Measurement method for solid particle contamination of hydraulic oil for automobile cranes and tire cranes" and JL/T 9737.3-2000 "Selection and replacement of hydraulic oil for automobile cranes and tire cranes" constitute a series of standards for hydraulic oil for automobile cranes and tire cranes. This standard replaces JB/T 9737.1-1999 from the date of implementation. This standard is included in the A and Appendix 13 of this standard. All are appendices for reminders. This standard is proposed and managed by Changsha Construction Machinery Research Institute of the Ministry of Construction. The drafting unit of this standard: Puyuan Jifeng Co., Ltd. of Jiangsu Province. The main drafter of this standard: Meng Xialong.
This standard was first issued in November 1986 as 2BE3900286, and the standard number was adjusted to "B/T9737.11999" in April 1999.
This standard is entrusted to Changsha Construction Machinery Research Institute of the Ministry of Construction for interpretation, 949
1 Scope
Machinery Industry Standard of the People's Republic of China
Truck crane and wheel crane-Contaminaut grade of solid particlein hydraulic oil JB/T9737.1:2000
Substitute JB/T 9737.1—1999
This standard specifies the code for the solid particle pollution level in the working medium of the hydraulic system (hereinafter referred to as the code) and the solid particle pollution level of the hydraulic oil used in truck cranes and tire cranes. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. The versions shown at the time of publication of this standard are valid: All standards will be revised, and the parties using this standard should explore the possibility of using the latest version of the following engraved mark. GB/T140391993 Solid particle pollution in the working medium of hydraulic system: Level code 3 CodeWww.bzxZ.net
Codes for ambient particle pollution levels are in accordance with the provisions of GB/T140S$. 3.1 Composition of codes
The ambient particle pollution level code consists of two numbers separated by a slash: the first number represents the number of particles larger than 5um in the working medium. The second number represents the number of particles larger than 15um in the working medium. 3.2 Code regulations
The corresponding relationship between the number of particles and their codes is in accordance with the provisions of Table 1. 3.3 Determination of codes
According to the microscopic particle counting method or the dynamic particle counting method, obtain the particle counting data. The first code is specified for the number of particles larger than 5um, and the second code is specified for the number of particles larger than 15μm. Write these two codes in sequence and separate them with a slash. Example: Code 18/13 means that in 1ml of a given working medium, there are 1300 to 2500 particles larger than 5μm and 40 to 83 particles larger than 15μm:
3.4 ​​Representation of codes
See Appendix A (Suggested Appendix) for the graphic representation of codes. See Appendix 3 (Suggested Appendix) for the tabular representation of codes. Approved by Weijia Machinery Industry Bureau on April 24, 2000
2000-1091 implementation
10:000
>1 300
>0. 002 5
JB/T 9737.1-2000
1 mi.Number of grains
Corresponding relationship between number of grains and number
e:40000
10 000
:2 500
g1, 64
.0. 08
Solid particle pollution level of hydraulic oil for truck cranes and tire cranes The solid particle pollution level of hydraulic oil is shown in Appendix B. 4.1 The solid particle pollution level of hydraulic oil added to the hydraulic oil tank of the product shall not exceed 18/15 4.2 The solid particle pollution level of hydraulic oil when the product is shipped shall not exceed 19/16. 4.3 The solid particle pollution level of hydraulic oil during the use of the product shall not exceed 20/16. 1
JB/T 9737.1
Appendix A
(Prompt Appendix)
Graphical method of code
A1 When determining the solid particle pollution level code, specify the first code for the number of particles larger than 5 μm. Specify the second code for the number of particles larger than 15 μm. Write the two codes in sequence and separate them with a slash. Example: 18/13 (as shown in Figure A1). Interpolation is allowed, but extrapolation is not allowed.
Controlled size μm
152
JB/T 9737.12000
Appendix B
(Suggestive Appendix)
Tabular representation of codes
1 tnL Number of particles larger than 5 μm
≥2 500
-2 500
5:10 000
:5 ono
1 rnl. Number of particles larger than 15 μm
2- 160
JB/T 9737.1
Table B1 (Complete)
1 nL Number of particles larger than 5 μm
1 ml. Number of particles larger than 15 μm
Note: Table B1 includes the most commonly used code series for 954-21. Other codes not given in Table H1 can be composed according to the method given in Appendix A.
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