This standard is one of the IEC 1430-4 series of standards, which specifies the measurement method of the resistance charging property to characterize the electrostatic performance of floor coverings and assembled floors. Due to the requirements of use, different types of floors are needed, and the resistance measurement method cannot fully characterize the electrostatic performance, so the establishment of a charging property measurement method is necessary. SJ/T 11159-1998 Test method for electrostatic performance of floor coverings and assembled floors SJ/T11159-1998 Standard download decompression password: www.bzxz.net
This standard is one of the IEC 1430-4 series of standards, which specifies the measurement method of the resistance charging property to characterize the electrostatic performance of floor coverings and assembled floors. Due to the requirements of use, different types of floors are needed, and the resistance measurement method cannot fully characterize the electrostatic performance, so the establishment of a charging property measurement method is necessary.

Record number: 2063-1998
Electronic Industry Standard of the People's Republic of China
S/T 11159-1998
idt IEC 1340-4-1:1995
Test methods for electrostatic behaviourof floor coverings and installed floors1998-03-11Published
Ministry of Electrical Industry of the People's Republic of China
1998-05-01Implementation
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IEC Foreword
1.1 Scope
1.2 Reference standards
Samples for laboratory tests
Conditioning and environmental conditions for laboratory tests 1.6 Test conditions for finished floorings
1.7 Classification of floorings
1.8 Test report
2 Measurement of resistance
2.1 Test procedure for torque measurement
2.2 Test report
3 Measurement of electrification
Appendix A (Standard Appendix) Test apparatus
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This standard is equivalent to IEC1340-4-1 (1995) <Electrostatics Part 4: Standard test methods for special purposes Section 1: Electrostatic properties of floor coverings and assembled floors). The formulation and implementation of this standard will provide internationally recognized performance test methods for the trade of anti-static flooring and floor covering products. At the same time, it also provides a unified technical basis for the comparison and evaluation of the electrostatic performance of products in the same industry in China and the contractual delivery between product manufacturers and users. When there is a dispute between the electronic industry standards for the performance test methods of anti-static floors and floor coverings and the provisions of this standard, the provisions of this standard shall be used as the arbitration method. Appendix A of this standard is the appendix of the standard. This standard is under the jurisdiction of the Standardization Research Institute of the Ministry of Electronics Industry. The drafting unit of this standard: the Standardization Research Institute of the Ministry of Electronics Industry. The Electronic Industry Anti-static Product Quality Supervision and Inspection Center, the Tenth Design Institute of the Ministry of Electronics Industry and the Beijing Great Wall Computer Room Technology Joint Development Company participated in the drafting. The main drafters of this standard: Zhang Baoming, Lin Wenhuo, Sun Yanlin, Mao Shouqi, Yu An, Kong Bin, Hu Jingsen. This standard was first issued in March 1998.
This standard is entrusted to the Standardization Research Institute of the Ministry of Electronics Industry for interpretation. TYYKAoNrKAca
IEC Foreword
1) IEC (International Electrotechnical Commission) is a worldwide standardization organization composed of national electrotechnical technical committees (LEC National Committees). The purpose of IEC is to promote international cooperation on all standardization issues related to the electrical and electronic fields. Therefore, in addition to other work, IEC also publishes international standards. IEC entrusts the formulation of standards to technical committees; any national committee of the EC can participate in the formulation of the standard for the issue of interest, and international, governmental and non-governmental organizations cooperating with IEC can also participate in this work. According to the agreement between IEC and the International Organization for Standardization (ISO), the two organizations will maintain a close cooperative relationship. 2) Formal resolutions or agreements of IEC on technical issues formulated by technical committees in which all national committees with special concerns on the issue participate, as far as possible, express the international consensus on the issues involved. 3) The published standards, technical reports or guidelines are used internationally in the form of recommendations and are recognized by the national committees in this sense.
4 In order to promote international unification, the EC National Committees agree to use IEC International Standards in their national and regional standards as transparently as possible. Any deviations between IEC standards and corresponding national or regional standards should be clearly indicated in the latter.
International Standard IEC 1340-4-1 was prepared by SC 15D (Sub-Technical Committee on Electrostatics) of IEC/TC 15 (Technical Committee on Insulating Materials). The text of this standard is based on the following documents: Draft International Standard (DIS)
15D/42/DIS
Repnrton vating
15D/46/RVD
Details of the vote on the approval of this standard can be found in the vote report listed in the table above. Annex A is an essential part of this standard. TYYKAONT KAca
1 General
1.1 Scope
Electronic Industry Standard of the People's Republic of China
Test methods for electrostatic hehaviourof floor coverings and installed floorsSJ/T11159-1998
idtIEC1340-4-1:1995
This standard is one of the IEC1340-4 series of standards and specifies the measurement methods for the resistance charging properties to characterize the electrostatic properties of floor coverings and installed floors. Due to the requirements of use, different types of floors are required. It is impossible to fully characterize the electrostatic properties using the resistance measurement method, so it is necessary to establish the charging property measurement method. These methods are applicable to the test of various types of floor coverings and installed floors. The tests of floor coverings are carried out in a test chamber under controlled environmental conditions and are carried out after being subjected to the conditioning test. For assembled floors, the measurements are made in situ under uncontrolled environmental conditions. For materials used to control static electricity, it is appropriate to test in accordance with the requirements specified in this standard. Measurements may also be made on materials that are more conductive or more insulating. 1.2 Referenced Standards The following standards contain clauses that constitute clauses of this standard by reference in this standard. The versions shown are valid at the time of publication of this standard. All standards are subject to revision. Parties to old versions of this standard should consider the use of the latest version of the following standards for energy resistance. IS () 1957: 1986 Sampling and cutting of samples for physical testing of machine-made textile floor coverings 1.3 Definitions The following definitions apply to this standard. 1.3.1 Electrostatic conductive floor (ECF) A floor that has a sufficiently low electrical resistance that it quickly discharges charge when it is grounded or connected to any point of lower potential. Electrostatic conductive floor is characterized by a resistance less than 1×10\n. NOTE: The resistance to the protective earth or to a point that may be connected to earth is a typical characteristic for most applications. 1.3.2 Dissipative floor (DIF) dissipativefloor (DTF), a floor that allows the dissipation of charge when it is grounded or connected to any point of lower potential. Dissipative floors are characterized by a resistance between 1×10° and 1×10°. NOTE
1. The resistance to the protective earth or to a point that may be connected to earth is a typical characteristic for most applications. 2. The magnitude of the electrostatic current caused by a charged body being grounded through a dissipative floor is reduced compared to a conductive floor, but the charge dissipation time is longer.
Approved by the Ministry of Electronics Industry of the People's Republic of China on March 11, 1998
Implemented on May 1, 1998
SI/T11159—1998
1.3.3 Astatic floor (ASF) A static floor (ASF) is a floor that generates a small amount of charge when it is separated from or rubbed against other materials such as soles, wheels, etc. This floor does not need to dissipate or conduct static electricity.
Astatic floors are used in homes or public places. They are characterized by the voltage measured on a test roller rolling on the floor surface.
Measured in accordance with the method specified in Section 3, this characteristic voltage should be less than 2kV. The term "antistatic" should be avoided because of different meanings, so "difficult to cause (static) charge" is selected. 1.3.4 Surface resistance (Rs) surface resistance The ratio of the DC voltage between two electrodes applied to the surface of the material to the current between the two electrodes after a given energization time, ignoring possible corrosion phenomena on the two electrodes. Note: Usually, the current flows mainly through the surface layer of the material and any associated moisture and contaminants, but it also includes the component within the volume of the material.
1.3.5 Volume resistance (Rv) volumeresistance The ratio of the direct current between two lead-in electrodes in contact with opposite faces of a block of material and the current between the electrodes after a given energization time, neglecting possible polarization phenomena at the electrodes. 1.3.6 Resistance measuring electrodes The measuring electrode is a conductor of specific shape, size and mass which is in contact with the sample to be tested. In some cases, it is associated with a secondary electrode.
The secondary electrode is an electrode placed under the sample and is made of suitable conductive material or forms a mounting part of the assembly floor to be measured.
1.3.7 Groundable point A point on the floor covering which is used to provide an electrical connection from the floor covering to a suitable common grounding point. 1.3.8 Resistance to groundable point (Rc) resistance lo a graundable jxint The resistance measured between the measuring electrode placed on the surface of a sample or an assembly floor and a point to be grounded.
i.3.9 Resistance to the protective earth (Re) resistance to the protective earth The resistance measured between a measuring electrode placed on the surface of an assembled floor and the protective earth of the power distribution system. 1.3.10 Characterizing voltage The voltage to earth measured on a roller covered with special contact material and rolling on the surface to be tested. 1.4 Samples for laboratory tests
Sampling of samples for tests on textile and resilient floor coverings shall be in accordance with ISO 1957. NOTE Flat finished products such as shelf floor tiles may be considered as samples. The minimum dimensions of the samples shall be:
- 0.5 m × 1.2 m for electrical measurements to possible points of earthing; - 0.5 m × 0.5 m for other resistance measurements; - 1 m × 2 m for electrical conductivity tests
If the dimensions of the samples are smaller than these, a sufficient number of samples shall be assembled together to form the minimum area required by alternative methods.
For mechanical support materials required for the floor (ceramic tiles, paint, adhesive materials, etc.), one of the following specified support materials should be used according to the type of measurement to be carried out:
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SJ/T111591998
Calcium silicate board, simulating a concrete foundation, for surface resistance or resistance to a possible grounding point. Conductive substrate, such as a metal plate, for volume resistance measurement. The manufacturer should provide a copy of the instructions for installation of the floor. Three samples of appropriate specifications should be provided for measurement: 1.5 Conditioning and environmental conditions for laboratory testing The electrostatic properties of materials usually depend on environmental conditions, mainly relative humidity. For this reason, the measurements should be carried out under controlled conditions specified by the three levels in Table 1. The choice of test level is based on the type of floor covering to be tested and the foreseeable use. It is based on the most severe conditions (lowest condensation) under which the product is expected to work. If necessary, cleaning of the floor covering should be carried out before pretreatment (when specified) or before conditioning according to the manufacturer's recommendations.
Note: It is most likely to be helpful to carry out measurements before and after cleaning. In the case of measurements after cleaning, if the cleaning agent contains water or non-volatile materials, the floor covering surface should be appropriately cleaned and dried. Condition the specimens and measure them in the test room under the following environmental conditions. Preconditioning of the specimens may be necessary to eliminate the effects of stresses that some materials present after molding or to dry them before conditioning begins. Textiles require humidified pretreatment and longer dry conditioning. During pretreatment and conditioning, humidity and conditioning air should be maintained when changing the two surfaces of the specimens. Temperature and relative humidity should be resolved to an accuracy of 1 and 11% RH. Table 1 Environmental level
Pretreatment:
Duration
Relative humidity
40℃±3℃
RH<15%
24+2*h:
20 ±2t
G5%RH±3%RH
Conditional treatment:
Duration
Relative humidity
96+1°h;
23t±2
12 % RH + 3% RH
23t ±2℃
25 % RH + 3 % RH
168+1\h:
23℃2
25% RH±3% RH
23 ±2r
50%RH= 5%RH
Relative humidity
23t±2t
12%RH± 3%RH
23℃±2℃
25%RH± 3%RH
23℃ ±2
S0%RH± 5%RH
Note: 1. The specified conditioning times may not be sufficient to allow the sample to reach complete equilibrium with the environment. They have been selected as a compromise between cost and accuracy. If you want to assess its performance at conditions close to equilibrium, then a series of measurements should be made until the results show that it has been achieved.
2. Environmental Class 2: It is the preferred choice for testing textile coverings. TYYKAoNTKAca
1.6 Test conditions for finished flooring
SJ/T 11159—1998
If necessary, the cleaning of the flooring shall be carried out in accordance with the manufacturer's recommendations. If the cleaning agent contains water or non-volatile impurities, the flooring shall be properly cleaned and dried. Note: It may be helpful to measure the temperature before and after cleaning. The temperature and relative humidity shall be resolved to an accuracy of 1C and 1%RH. 1.7 Classification of flooring
According to Chapters 2 and 3, this classification is based on the corresponding methods specified in the product standards. The principles of classification are specified in Table 2.
Table 2 Classification of flooring
Measurement basis
Resistance
Electrification
Corresponding value
Rx10°a
10°5m; for electrification test 1m×2m
If the size of the sample is smaller than these dimensions, then a sufficient number of samples should be assembled together to form the required minimum area by alternative methods.
For mechanical support materials required for the panel (ceramic tiles, paint, adhesive materials, etc.), one of the following specified support materials should be used according to the type of measurement to be carried out:
TYYKAONT KAa
SJ/T111591998
Calcium silicate board, simulating a concrete foundation, for surface resistance or resistance to a point that may be grounded. Conductive substrate, such as a metal plate, for volume resistance measurement. The manufacturer should provide a copy of the instructions for floor installation. Three samples of appropriate specifications should be provided for measurement: 1.5 Conditioning and environmental conditions for laboratory testing The electrostatic properties of materials usually depend on environmental conditions, mainly relative humidity. For this reason, the measurements should be carried out under controlled conditions specified by the three levels in Table 1. The choice of test level is made according to the type of floor covering to be tested and the foreseeable use. It is based on the most severe conditions (lowest condensation) under which the product is expected to operate. If necessary, cleaning of the floor covering should be carried out before pretreatment (when specified) or before conditioning according to the manufacturer's recommendations.
Note: It is most helpful to test before and after cleaning. In the case of testing after cleaning, if the cleaning agent contains water or non-volatile substances, the floor covering surface should be appropriately cleaned and dried. The specimens are conditioned and measured in the test room under the following environmental conditions. Preconditioning of the specimens may be necessary to eliminate the effects of stresses that some materials present after molding or to dry them before conditioning begins. Textiles require humidified pretreatment and longer dry conditioning. During pretreatment and conditioning, the humidity and conditioning air should be guaranteed when changing the two surfaces of the specimens. Temperature and relative humidity should be resolved to an accuracy of 1 and 11% RH. Table 1 Environmental level
Pretreatment:
Duration
Relative humidity
40℃±3℃
RH<15%
24+2*h:
20 ±2t
G5%RH±3%RH
Conditional treatment:
Duration
Relative humidity
96+1°h;
23t±2
12 % RH + 3% RH
23t ±2℃
25 % RH + 3 % RH
168+1\h:
23℃2
25% RH±3% RH
23 ±2r
50%RH= 5%RH
Relative humidity
23t±2t
12%RH± 3%RH
23℃±2℃
25%RH± 3%RH
23℃ ±2
S0%RH± 5%RH
Note: 1. The specified conditioning times may not be sufficient to allow the sample to reach complete equilibrium with the environment. They have been selected as a compromise between cost and accuracy. If you want to assess its performance at conditions close to equilibrium, then a series of measurements should be made until the results show that it has been achieved.
2. Environmental Class 2: It is the preferred choice for testing textile coverings. TYYKAoNTKAca
1.6 Test conditions for finished flooring
SJ/T 11159—1998
If necessary, the cleaning of the flooring shall be carried out in accordance with the manufacturer's recommendations. If the cleaning agent contains water or non-volatile impurities, the flooring shall be properly cleaned and dried. Note: It may be helpful to measure the temperature before and after cleaning. The temperature and relative humidity shall be resolved to an accuracy of 1C and 1%RH. 1.7 Classification of flooring
According to Chapters 2 and 3, this classification is based on the corresponding methods specified in the product standards. The principles of classification are specified in Table 2.
Table 2 Classification of flooring
Measurement basis
Resistance
Electrification
Corresponding value
Rx10°a
10°5m; for electrification test 1m×2m
If the size of the sample is smaller than these dimensions, then a sufficient number of samples should be assembled together to form the required minimum area by alternative methods.
For mechanical support materials required for the panel (ceramic tiles, paint, adhesive materials, etc.), one of the following specified support materials should be used according to the type of measurement to be carried out:
TYYKAONT KAa
SJ/T111591998
Calcium silicate board, simulating a concrete foundation, for surface resistance or resistance to a point that may be grounded. Conductive substrate, such as a metal plate, for volume resistance measurement. The manufacturer should provide a copy of the instructions for floor installation. Three samples of appropriate specifications should be provided for measurement: 1.5 Conditioning and environmental conditions for laboratory testing The electrostatic properties of materials usually depend on environmental conditions, mainly relative humidity. For this reason, the measurements should be carried out under controlled conditions specified by the three levels in Table 1. The choice of test level is made according to the type of floor covering to be tested and the foreseeable use. It is based on the most severe conditions (lowest condensation) under which the product is expected to operate. If necessary, cleaning of the floor covering should be carried out before pretreatment (when specified) or before conditioning according to the manufacturer's recommendations.
Note: It is most helpful to test before and after cleaning. In the case of testing after cleaning, if the cleaning agent contains water or non-volatile substances, the floor covering surface should be appropriately cleaned and dried. The specimens are conditioned and measured in the test room under the following environmental conditions. Preconditioning of the specimens may be necessary to eliminate the effects of stresses that some materials present after molding or to dry them before conditioning begins. Textiles require humidified pretreatment and longer dry conditioning. During pretreatment and conditioning, the humidity and conditioning air should be guaranteed when changing the two surfaces of the specimens. Temperature and relative humidity should be resolved to an accuracy of 1 and 11% RH. Table 1 Environmental level
Pretreatment:
Duration
Relative humidity
40℃±3℃
RH<15%
24+2*h:
20 ±2t
G5%RH±3%RH
Conditional treatment:
Duration
Relative humidity
96+1°h;bzxz.net
23t±2
12 % RH + 3% RH
23t ±2℃
25 % RH + 3 % RH
168+1\h:
23℃2
25% RH±3% RH
23 ±2r
50%RH= 5%RH
Relative humidity
23t±2t
12%RH± 3%RH
23℃±2℃
25%RH± 3%RH
23℃ ±2
S0%RH± 5%RH
Note: 1. The specified conditioning times may not be sufficient to allow the sample to reach complete equilibrium with the environment. They have been selected as a compromise between cost and accuracy. If you want to assess its performance at conditions close to equilibrium, then a series of measurements should be made until the results show that it has been achieved.
2. Environmental Class 2: It is the preferred choice for testing textile coverings. TYYKAoNTKAca
1.6 Test conditions for finished flooring
SJ/T 11159—1998
If necessary, the cleaning of the flooring shall be carried out in accordance with the manufacturer's recommendations. If the cleaning agent contains water or non-volatile impurities, the flooring shall be properly cleaned and dried. Note: It may be helpful to measure the temperature before and after cleaning. The temperature and relative humidity shall be resolved to an accuracy of 1C and 1%RH. 1.7 Classification of flooring
According to Chapters 2 and 3, this classification is based on the corresponding methods specified in the product standards. The principles of classification are specified in Table 2.
Table 2 Classification of flooring
Measurement basis
Resistance
Electrification
Corresponding value
Rx10°a
10°
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