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GB/T 11145-2014: Standard test method for measurement of low-temperature viscosity of lubricants -- Brookfield viscometer method
Status: Valid GB/T 11145: Evolution and historical versions
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| GB/T 11145-2014 | English | 649 |
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Standard test method for measurement of low-temperature viscosity of lubricants -- Brookfield viscometer method
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GB/T 11145-2014
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| GB 11145-1989 | English | RFQ |
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Automotive fluid lubricants--Determination of low-temperature viscosity--Brookfield viscometer method
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GB 11145-1989
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| GB/T 11145-1989 | English | 479 |
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Automotive fluid lubricants--Determination of low-temperature viscosity--Brookfield viscometer method
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GB/T 11145-1989
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PDF similar to GB/T 11145-2014
Basic data | Standard ID | GB/T 11145-2014 (GB/T11145-2014) | | Description (Translated English) | Standard test method for measurement of low-temperature viscosity of lubricants -- Brookfield viscometer method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E34 | | Classification of International Standard | 75.100 | | Word Count Estimation | 28,231 | | Date of Issue | 2/19/2014 | | Date of Implementation | 6/1/2014 | | Older Standard (superseded by this standard) | GB/T 11145-1989 | | Quoted Standard | GB/T 514-2005; GB/T 6683; SH/T 0732 | | Adopted Standard | ASTM D2983-2009, MOD | | Regulation (derived from) | National Standard Announcement 2014 No. 2 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Standard specifies the conditions under appropriate torque, using the test method Brookfield viscometer lubricant dynamic viscosity at low shear rates. This Standard applies to viscosity in the range of 500 mPa �� s-900 000mPa �� s, Brookfield viscomet | GB/T 11145-2014: Standard test method for measurement of low-temperature viscosity of lubricants -- Brookfield viscometer method
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Standard test method for measurement of low-temperature viscosity of lubricants. Brookfield viscometer method
ICS 75.100
E34
National Standards of People's Republic of China
Replacing GB/T 11145-1989
Determination of low viscosity lubricant
Brookfield viscometer method
Issued on. 2014-02-19
2014-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB/T 11145-1989 "Vehicles low viscosity lubricant fluid assay (Brookfield viscometer method)", and
GB/T 11145-1989 main technical changes compared as follows.
--- The standard name from "vehicle cryogenic fluid lubricant viscosity assay (Brookfield viscometer method)" to "low lubricant
Brookfield viscosity measured temperature viscometer Law ";
--- Test Method A suitable viscosity range from the "1000mPa · s ~ 1000000mPa · s" changed to "500mPa · s ~
900000mPa · s (see Chapter 1 and Chapter 1 of the 1989 edition) ";
--- Method A useful temperature range from the "-5 ℃ ~ -40 ℃" changed to "in the viscometer allows low-temperature range (see Chapter 1
And Chapter 11 989 edition);
--- A method of increasing the number of adiabatic 4B2 spindle number Tannas4 glass composite mandrel and carbonaceous composite mandrel three kinds of spindle (see
5.2.2);
--- A method of increasing the use of air cooling bath - heated liquid bath cooling liquid bath and procedural steps [see 5.2.8,5.4.3b) and
5.4.3c)];
--- A test tube method used by the "inner diameter of 22mm ~ 23mm, total length of 128mm ~ 130mm, 70mm at the bottom from there
Lasso line "to" glass tube, an inner diameter of 22.0mm ~ 22.5mm, total length of 115mm ± 5mm, annular engraved
Line "(see 5.2.3 and 4.1.4 1989 edition);
--- A method of specimen preparation requirements by the "50 ℃ water bath placed 0.5h" was changed to "test tube small viscosity liquid sample preheating
To 50 ℃ ± 3 ℃, constant temperature 30min ± 5min. For large tube viscosity of the liquid sample is preheated to 90 ℃ ± 3 ℃, constant
Wen 30min ± 5min "[see 5.4.2c) and 1989 version 7.3];
--- A unified method of testing time limit "after the viscometer spindle starts to rotate, the test should be completed in the 60s (more than
Sample 150000mPa · s no more than 90s) "[see 5.4.5g) 3)].
This standard uses redrafted Law Revision using American Society for Testing Materials Standards ASTMD2983-09 "low viscosity lubricants Determination
France (Brookfield viscometer law). "
This standard ASTMD2983-09 compared to the structure have more adjustment, listed in Appendix A of this standard and ASTMD2983-09
The reg number table.
Differences and Reasons of the technical standards and ASTMD2983-09 follows.
--- Taking into account the actual situation, increase the content of this standard Chapter 6 Method B --- semiconductor cold bath Determination of viscosity
And Appendix H "semiconductor technology cold bath conditions and instructions for use."
--- Due to our current unused SimAir laboratory test tube, so there is no use in SimAir tube phase ASTMD2983-09
Relevant content.
The standard proposed by China Petroleum and Chemical Corporation.
The standard by the China Petroleum Products and Lubricants Standardization Technical Committee of petroleum fuels and lubricants Technical Committee
(SAC/TC280/SC1) centralized.
This standard was drafted. China Petroleum & Chemical Corporation lubricants R & D (Beijing) Center.
The main drafters of this standard. Hu Gang, Xia Peng, Li He ran, Lixue Hong, Liang Yan Micro.
This standard replaces the standards previously issued as follows.
--- GB/T 11145-1989.
Determination of low viscosity lubricant
Brookfield viscometer method
Warning. This standard relates to certain hazardous materials, operations and equipment, but not for all the security issues recommendations. Therefore,
Household before using this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations related.
1 Scope
This standard specifies the appropriate torque conditions, try using Brookfield viscometer lubricant dynamic viscosity of low shear rate
Test methods.
This standard applies to viscosity in the range of 500mPa · s ~ 900000mPa · s, temperature range Brookfield viscometer allows
Temperature range.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 514-2005 petroleum products Glass liquid thermometer technical conditions
GB/T 6683 Petroleum products - Determination of precision data test method
SH/T relationship between viscosity and temperature of the lubricating oil at a low temperature cut 0732 assay (temperature scanning)
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Apparent viscosity apparentviscosity
According to the standard measurement of dynamic viscosity.
Note. For non-Newtonian fluid lubricant, which will be apparent viscosity with Brookfield viscometer spindle speed (shear rate) change. See a brief description attached
Record B.
3.2
Reference viscosity referenceviscosity
Reference viscosity of the oil.
Note. The reference oil is a Newtonian fluid having a specific viscosity at several temperature points required by the user. Reference oil viscosity typical reference in Appendix C.
4 Methods
4.1 automatic transmission fluid, gear oil, hydraulic transmission oil, hydraulic oil, industrial and automotive lubricants, the low temperature and low shear rate viscosity for normal
Operation related equipment is very important. Many lubricant specifications and standards specify the use of this standard test viscosity and viscosity characteristics measured for determining
Oil meets the requirements.
4.2 standard direct measurement of apparent viscosity, low temperature to avoid the error of estimating the value of the apparent viscosity of the resulting epitaxial method. With reference oil calibration
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