GB/T 2423.54-2005 Environmental testing for electrical and electronic products Part 2: Test method Test Xc: Fluid contamination
Some standard content:
Irs 19.040
National Standard of the People's Republic of China
GB/T 2423.54--2005/IEC 60068-2-74:1999 Environmental testing for electric and electronic products-Part 2: Test methods-Test Xc: Fluid contamination(IEC 60068-2-74:1999.Environmental testingPart 2, Tests-Test Xc:Fluid contamination contamination, ID'l)2005-01-18 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of Chinawww.bzxz.net
2005-06-01 Implementation
CB/T 2423.54—7005/1FC 60068-2-74:1999 Former
General Specification
Testing Institute
Test Sample
Initial Qualification Test
Conditional Test Exemption
Occasional Contamination Case (Type 3
Intermittent Results (Type 3
Continuous Contamination)
Post-testing
Related Specifications Can Make Internal Decisions||tt| |Guidelines for the light level of test fluid and test sample Appendix A (Informative Appendix)
Contaminated flow and its image
Choice of test flow
Detailed information:
Sequence of test flow and new flow
A.6 Inspection
Moving flow grade
Yingzhou method
Performance evaluation
References
GH/T 2473.54—2005/IRC: 6006A-2-74:1399 This part is a part of B: Industrial 242: Environmental test 3 for electronic products: This part also adopts 65-2-74:: Environmental test Section 2: Reading
Pass the test flow component to change the point version)
The technical content of this part is the same as the EE Center 68-2·7:1999 Environmental change test
Test X: Fluid line collection red English
version, the format and expression method will include T! —2UH and GOU, 2—2 related standards. In order to make the use of the E8-9-19:2123 standard name adjustment, the full use of the E68-2-71: the detailed name of the non-Japanese T-type product environmental protection test recruitment Part 2: Test method X: Fluid contamination; in addition to the foreword
also part of the Appendix A for the material thanks.
This part was proposed by the Chinese Ministry of Industry and Information Technology, and the Ministry of Electrical and Electronic Products Technical Standardization Technical Committee, part of the general location, the Ministry of Industry and Information Technology has produced this part of the research institute: the following is a brief introduction, the car shows the way. 1
1 GB/T2423.54—2005/1FC 60568-2-72:1993 Environmental testing for electric and electronic products
Part 2: Test methods Test: Fluid contamination G3 This part defines the design requirements, design and composition of the test process (hereinafter referred to as the test method for monitoring the product under the total external hazard.
The fluids listed in this part represent the fluids that are often encountered during use. The test product does not need to be exposed to all or part of the listed fluids, and the entire listed system is not required. The test fluids are not covered by this part, and the relevant specifications will list the fluids, except for those listed for human use, and the selection of severe conditions, etc. This document provides a general indication of the quality of the product. This test is not applicable to parts of the equipment that are in continuous contact with the fluid, such as fuel systems, and is not suitable for verifying the ability to withstand shrinkage.
2 Normative references to this document
The following documents (as of 15/23) become the clauses of this part. For the applicable documents of the specified period, all subsequent amendments or revisions do not apply to this part. However, the latest versions of these documents may be used for research purposes. For any applicable documents not specified in the specified period, the latest version shall apply. Part of the test fluid.
IS03171986 Vulcanized rubber
3 Test fluid
3.1 Specification of test fluid
Related specifications
See Chapter 2 for the required formula. The test fluid can be selected from the following materials, and the properties of these fluids are representative of the material (see Chapter 2).
When the test fluid is specified in Table 1, the relevant material specifications should also be specified. 3.2 Notes
For the flash point of the test fluid, the flash point of the test fluid is within the test temperature range, so It should be ensured that sufficient fire protection measures are taken to reduce the possibility of fire or marriage: the fluid is related to the composition of the test sample and becomes wet after mixing with other fluids. Before starting the test, appropriate attention should be paid to this possibility. The experts of the proposed test bed and safety enterprise mainly represent the types of contaminated fluids and the types of contaminated fluids in the test. 257:3 dynamic viscosity m/3
: B/2423.59—2005/1EC: 6DC68-2-741999 dye two body variant
expansion silk pad
ligand: synthetic
agent after sticking agent
Chen ball culture anesthetic agent
Thai insect agent
continuous terminal agent urgent with .2.9
fire extinguishing agent
Wu Liu Lian
table (system)
test dead base
NATOS7SIOMIH
2-indole (propane)
modified number
2 years old ticket and one standard network
U long acetic acid buried through corrosion water grid membrane
Colanol 2E.R
Va chemical flow (fast acting type>
oxygen foam
its monitoring temperature key
as far as possible in accordance with international standards on the European chemical step test building. The cloth base monitoring condition, YA Ding> label is ranked in the product label, immediately read the relevant documents can quickly reach the heart of the use,
also with the core chapter, chapter 1, next [D chapter and the system A. 1 method of humidity change is through the critical point chaos zone, the method should consult the expert's sense of determination. If it is necessary to replace the capacity,
test sample
2.1 Test sample becomes one of them-
1) Equipment:
) All parts,
Note 1: Among them, the equipment to the mountain point 5 is not allowed to complete the temporary test rush, the special delivery is the material of the western layer of the material quality.
Note 2: The material or surface of the test product is the most suitable as possible for the main area. 4.2 Related observations I shall specify the number and type of test products, see English Chapter A.1) 5 Cleaning
5.1 Initial cleaning
Unless otherwise specified, the test sample shall be thoroughly cleaned in air to remove representative pre-cleaning layers, such as corrosive agents, anti-grease and lubricants. Chapter 5)
5.2 Intermediate drip washing
Whether it is necessary to use the test fluid in the test sequence. Standard cleaning statement Note: Select a special cleaning agent or method for the test product. 5.3 Post-cleaning
The US standard specifies the cleaning method for new products before use. See Chapter A5) 6 Preliminary test
GB/T2423.54—2005/IECB3068-2-74:19996.? Preliminary inspection of the test product, and recording of its status: 6.2 The relevant provisions shall specify the measurement or detection of the disease (see Chapter AS) 7 Recording of test items
7.1 Chapter 6 Inspection, brother 1) Chapter 6 The test procedure shall specify the test sequence to collect the required sequence, the use of the test fluid,, treatment, (see Chapter A.7 Emperor) Note: If the specification light is carried out in the ring series test, it is determined that the effect of the product is not allowed to produce the company's effect 7.2 The specification shall specify the detailed inspection method of the product to ensure that the electrical or excellent connection is carried out, whether it is abandoned before the test, during the test or at night, and the corresponding standard working parameters are opened. If an initial working inspection is specified, a plan should be made to check for natural contamination (.4)
day 1 Test sample according to the design: Keep the room power supply, and carry out according to the relevant specifications. B.2 Use the test sample taken from 1 or the relevant specifications to keep the test temperature change, brush or film the test product, ensure that the test product is completely wet, let the test product naturally micro-blow for 13min~._5min, and do not allow the test sample to move or touch the test sample. 3 Move the test sample to the appropriate test state: Check it according to the normal state 1, and keep the test temperature at zero according to the relevant specifications. The test yield should be specified, and the temperature should be 71±3 time 4:8.4 At the end of the test, let the test sample cool to room temperature, and then check it. E.5 If the relevant specifications have requirements, repeat this test procedure. 9 Intermittent pollution (Class E)
9. Install the test sample in normal working state for 1 time, keep it in the room, or carry out according to the provisions of relevant specifications, 5.2 and select from Table 1 or the cabinet specified in the relevant specifications to maintain the test placement flow after disinfection, spray or coat the test sample to ensure that all surfaces of the test sample are moistened. If necessary, repeat this step once or twice to make all surfaces of the test sample in a wet state within the time specified in the relevant regulations.
If there is a current timing authorization, there should be Secondary not yet. Each cycle is 241 ± 11. Each series of rings before 8h 0.51 or test sample is completely dependent on the special state Jie: Ni 1thU.5h is the test sample in the environment temperature inversion of the natural proof period, during this period to six should have the outside of the humidity standard 9.3 test sample into the test box to meet the relevant time to maintain the test temperature, the test parameters are not specified · Rui lake: =, time 93h35
9.4 at the end of the test to let the test sample cool down and then conduct the final inspection. 10 will continue to pollute (C expensive)
work: not used for inspection of the equipment under the operation of the inspection hall! Work suitability. 10.1 The test sample shall be completely immersed in the specified test fluid. The test fluid temperature and the time of liquid injection shall be in accordance with the provisions of the relevant specification. If the product concentration and (or) time are not specified, the temperature shall be in accordance with the table [Qiao, the time shall be 241=11110.2 Move the test sample into the test chamber and maintain the test concentration for the specified time according to the relevant specification. If the test object is specified, the temperature shall be 70℃ and the time shall be 93±31. During this period, the test product is allowed to flow in, and possible preventive measures shall be taken.
10,3 During the test period, let the test sample clean the room, and then check after the measurement. 11 Finally
11.1 The test sample shall be cleaned according to the requirements of 5.3. 3
GB/T 2423.54—2005/1EL 60068-2-74:199911.2 Check the certificate and record the changes in the inspection results. 11.3 The required clearance or inspection requirements are as follows: (see 4.6) The specification should make the following provisions:
When the relevant test is adopted, it is also necessary to make a detailed provision based on the pressure section selection: a)
, the test body
test sample
clear and disorderly sequence (if necessary)
initial test
test sample sequence
sequence Identify the test flow during the test (suitable for the test product) Connection and operation (if necessary) of the test product Installation status and starting age of the test product If it is not normal working temperature, the test fluid should be used for multiple test fluids (Table 1)
Treat the test product with the test fluid for a period of time Storage temperature k?
Treat the test product with the test fluid Immediately after the test sample is stored in the test sample within the range of temperature, light and/or time to test
A.1 Description
Appendix A
(Informative Appendix)
GB/T 2423.54—2005/IEC 60068-2-74:1399 Guide for the selection of test fluids and test samples
This guide describes the determination of the effects of contamination on the equipment and the possible effects of the contaminants on the equipment. Single tests or series tests may be performed on the equipment, subsystems, components and materials. The test profile, test group and/or critical conditions should be selected to represent as closely as possible the typical fault conditions of the equipment. 2 Contaminated fluids and their effects
4. 2. 1 Overview
4.2.1.1 Equipment and components may be contaminated by fluids under normal operating conditions or in the event of an outage or leakage, such as pipes or connections.
4.2.1.2 Equipment and components may not necessarily be exposed to high temperatures when contaminated, as components or sections themselves may be exposed to higher operating temperatures, or may be exposed to higher temperatures when exposed to contamination. The effects of fluid contamination are determined by the properties of the contaminated fluid under high temperatures, such as fast-dissipating volatile substances, slow-dissipating volatile substances, and hard residues. 4.2.1.3 The effects of fluid contamination include packaging failure, cracking and swelling of plastics such as rubber, precipitation of inhibitors and other substances, and failure of sealants. The main reasons for the loss of paint and corrosion are removal and corrosion. A.2.1.4 has some other parts that have not been used. Since this document has not been used, it may still be used as an informative document by the compiler of the United States. (See Section 4.2; A.2.2 Fuel conversion
Most of the fuel is not effective for gasoline and coal. Gasoline has a stronger and more persistent harmful effect on gasoline and coal. It is more likely to remain on the surface, and has less lasting harmful effects on many composite or rubber components, especially when the temperature is high. Most clean materials and most types of materials are not affected by the materials at all. However, the adhesive may delaminate during the drying period.
Some materials contain static electricity than others. When there are added agents, these tests are considered to be more severe than those of the high-voltage test. The test flow also contains them.
A.2.3 Fluids
Commonly used lubricants are mineral or synthetic oils: see A.2.1 for the effects of the above. The latter are harmful to most composite materials and will be particularly harmful to imaging, plastics and plastics: A.2.4 Lubricants
Lubricants are mineral or synthetic oils, produced at a temperature of 1°C. There may be no warning for natural bases, but there is no harm to synthetics such as ethylene, ethylene and ethylene. The base may have an adverse effect on the grade. Synthetic lubricants are plastic science and technology cases. 4.2.5 Solvents and cleaners
Aircraft or its pool traffic 1. Before use, the engine and its surroundings must be cleared of the substances in the pool grease table "treatment mountain representative oral dew brush and control system test fluid: A2.6 De-icing antifreeze
This prohibition is only used under high temperature and not to contaminate the parts and components of the air conditioning, and must be reduced to the soil cost component.
A, 2.7 Runway de-icing agent
This award you state dry runway and other places to lower the freezing point of water, with spray alcohol or other For example, when flying in a hot area or flying in a flammable area, you may spray insecticides as an example. Obviously, it is not allowed to cause adverse effects of immediate replacement of parts or equipment. You must use a special agent! The same agent is tested for damage: A.2.9 Coolant This type of fluid is only used as a heat transfer fluid for cooling a certain equipment. The belt is made of ester material as the skin. Although the material is not too strict or, The effect of the ignition fluid on the engine is similar to that of the ester type hydraulic oil. A.2.10 Carbon ignition fluids There are two types of ignition fluids: one is used on board aircraft and the other is used on ground mantles: the extinguishing fluid used is likely to be a carbon monoxide or a hydrocarbon: these are water-based extinguishing fluids. Their effect is due to the accumulation of water and hydrocarbons. The necessity of using these extinguishing fluids for testing is to ensure that the equipment is working properly after the extinguishing fluid has been used:
4.3 Selection of test fluids
A.3.1 Standard test fluids
4.3, 1, 1 have different data when available. The source of the test has been explained. Under very busy conditions, the actual fluid used in the test will result in a large dispersion of results. It is not necessary to classify the fluid according to the composition. If the manufacturer does not synchronize the fluid under pressure, the fluids from different batches will cause the test results to be inconsistent. A.3.1.2 Therefore, this section avoids the use of fluids classified by composition as much as possible. The chemical composition of the test fluid is considered to be the most likely to affect the performance of the test sample and is considered to be sensitive to the test fluid: Non-standard test fluid 4.3.2.1 Table 1 provides a wide range of commonly used fluids and recommends representative test fluids for these types of fluids. When there is no requirement for the reduced volume ratio in Table 1, or the temperature test is performed using a special test step, the relevant specification should refer to the special fluid required by A.3.2.2. Since many fluids contain additives, it is impossible to obtain the actual volume ratio in the test plan due to these changes. The possible impact of these substances should be appropriately considered. 33 Regarding the changes in A.3.3.1, with the development of new formulations, The quality level of each important fluid is constantly changing or changing. Some high-performance fluids may not be used due to health and safety reasons. Therefore, Table 1 will be necessary to change. A, 3.3.2 Analysis of relevant specifications The formulation agency should strive to test the market. The basic principles of this part are to determine the representative carbon irradiation test fluid from Table 1. The actual chemical generation of the product or the chemical generation that is considered to have the greatest impact on the product should be selected. A.4 Test sample || tt || A.4.1 The selection of the test sample is determined by multiple new references. If the test fluid has not been installed, it is recommended to test the surface of the test fluid that has not been installed. The qualified identification stage should be more active. Test the equipment or representative accessories. 1 Note: When the material, surface treatment quality, component composition, fluid environment, etc. change, some or all of the test may need to be modified. When testing component materials, for other specified test samples, the use of different test samples may be required. A.4.2 When testing equipment or aging, the use of the above test samples may require the test fluid to be specified in A.5.2. A.5 Test and cleaning sequence 1.5.1 Complete each test sample using a different test fluid. If required, the instrument shall be screened (see 5.1). CB/T2423.54—2005/IEC 60068-2-4:1959A.5.2 When multiple test fluids are to be applied to a test specimen, the compiler of the relevant specification should consider: 1. Evaluate the effect of the test fluids on the equipment. 2. The likelihood of synergistic effects of adding the test fluids in sequence. 3. If differences in the order of application of the test fluids have been considered to have synergistic effects and are likely to occur during the life of the equipment, then this order of application should be specified: 4. The difference in the order of application of the test fluids should be considered: 5. The difference in the order of application of the test fluids should be considered: 6. The difference in the order of application of the test fluids should be considered: 7. The difference in the order of application of the test fluids should be considered: 8. The difference in the order of application of the test fluids should be considered: 9. The difference in the order of application of the test fluids should be considered: 10. The difference in the order of application of the test fluids should be considered: 11. After the test, should the test product be cleaned? Twist and slip will not cause further contamination. If the test source is not normal, please use the cleaning agent.
A.6 Inspection
It is necessary to inspect the appearance of all test products. In order to determine whether the test sample needs to be measured and when to measure during the test, the company must understand the test sample and the test severity level of the common product. F in the first competition to the bad test sequence, each test sequence name to choose the most suitable or test.
as the number, the core test process hall of the following analysis: "exhaustive pollution" under normal or no situation of small pollution expected to occur, such as once a year ~ 2 times of pollution, "situational pollution" under the condition of the expected record \ natural multiplication "more frequent pollution, in the tank and storage port near or regularly use disinfection to judge the average pollution, "persistent" refers to the object of the fluid for a long time against the flow of pollution: the test fluid is not under the test sequence, this is the actual situation (known) of the decision or maintenance. A.7.? In most cases, the temperature at which contamination is likely to occur is taken as the temperature at which the source is most likely to be contaminated. When the design assessment indicates that contamination (e.g. no contamination) can occur below the specified temperature, the temperature range of the hot fluid should also be considered, as well as the temperature range of the gas under high temperature. If the actual high temperature is not required, the temperatures given in Table 1 should be used. A.7.3 If the results are not feasible, the test time given in Chapter 8 should be used as the test method that represents the most severe impact on the material when testing. 9 Performance evaluation
If there are requirements, the product can be tested during the test. However, the market can be tested according to the accepted practices. After the test, the sample can be tested after the test or after the sequence test..IC Dream References
1S0175:181 Determination of the influence of liquid chemical substances on plastics (including 1S) 6072:1S66 Elasticity and flow of materials with 156743 New Part) Attached Notes, Soil and Citrus Related Products (1. Category) 150/R72018 Aid Stock - Chemical Determination of the Receptivity of 1 Industry and Alcohol with Fine Degradation
Gas Color Port Transportation8 Application method
The test is carried out in the most stringent way possible to represent the impact of the material on the machine. 9 Performance evaluation
If required, the product can be tested during the test period. However, the product can be tested according to the accepted practice after the test period or after the test period. IC Dream References
1S0175: 181 Determination of the influence of liquid chemical substances on plastics (including water) 6072: 1S66 Elasticity and flow of materials 156743 New Part) Attached Notes, Oil and Citrus Related Products (1. Category) 150/R72018 Aid - Chemical Determination of the Receptivity of 1 Industry and Alcohol
Gas Color Port Transportation8 Application method
The test is carried out in the most stringent way possible to represent the impact of the material on the machine. 9 Performance evaluation
If required, the product can be tested during the test period. However, the product can be tested according to the accepted practice after the test period or after the test period. IC Dream References
1S0175: 181 Determination of the influence of liquid chemical substances on plastics (including water) 6072: 1S66 Elasticity and flow of materials 156743 New Part) Attached Notes, Oil and Citrus Related Products (1. Category) 150/R72018 Aid - Chemical Determination of the Receptivity of 1 Industry and Alcohol
Gas Color Port Transportation
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