Some standard content:
Machinery Industry Standard of the People's Republic of China
Air filters for air conditioners
1 Subject content and scope of application
JB/T 6417--92
This standard specifies the air filters for air conditioners Air filter (hereinafter referred to as "filter") type, basic parameters, technical requirements, test methods, inspection rules, marking, packaging and storage.
This standard applies to filters used in ventilation and air conditioning and filters with resistance requirements. This standard does not apply to filters used to control air pollution. 2 Reference standards
GB191 Packaging, storage and transportation pictorial mark
GB4744 Textile water resistance test method
GB12218-General ventilation air filter performance test method GB/T13306 label||tt ||SJ142 General Technical Requirements for Electronic Industry Special Equipment 3 Terms
3.1 Filtration Efficiency
Use atmospheric dust in the laboratory as the dust source and use a dust particle counter to measure the particle size group counting efficiency. 3.2 Moisture-resistant filter
A filter that can work for a long time under normal temperature conditions with a relative humidity of 90% to 100%. 3.3 Sub-high-efficiency filter
A filter with a dust particle size not less than 0~5um and a counting efficiency of 95%~~99.9%. 4 Types and basic parameters
4.1 Type
4.1.1 According to the filtration efficiency of the filter for particles of specified dust particle size (atmospheric dust particle size group counting efficiency) tested under rated air volume, it is divided into 1 , 2, 3, 4, and 5 categories (see Table 1). Table 1
Filter name
Performance code
Particle size μm
Filtration efficiency E, %
Artificial dust measurement efficiency E, %||tt ||40
Coarse effect
5
2
40~A80
artificial
dust filtration efficiency for median diameter dP508μm
70
M70～A96
Note: Artificial dust is BFa artificial dust developed by the Academy of Metallurgy and Architecture. Approved by the Ministry of Mechanical and Electronic Industry of the People's Republic of China on July 20, 1992 958
Medium Efficacy
3
20～A70
1
High Efficiency|| tt||4
70A99
sub-efficient
5
≥0. 5
A95A99.9
1993-01-01 Implementation
4.1.2 The structural type of the filter is specified in Table 2. Structural type
Flat type
folding type
bag type
winding type
packing type
4.2 Model representation method is as follows ：
KG
JB/T 6417—92
Table 2
Generation
B
Z
D| |tt||
Ｔ
号
Rated air volume code: Arabic numerals /h code acquisition) Performance code: See Table 1
Width size: See Table 3
Model example:
KG 610/1-25
Filter The name code
indicates that the air conditioner uses a type 1 filter with a width of 610mm and an air volume of 2500m2/h. KG 305/2-15
indicates that the air conditioner uses a type 2 filter with a width of 305mm and an air volume of 1500m2/h. 4.3 Basic parameters
The overall dimensions of the filter are as specified in the figure below and Table 3. Purify air
D
Table 3
Height H
Width
B
Depth D
500,520,610,762,915||tt ||305,457,500,520.610762,915,1220,1525,183025,69,80,120.150,292,360,500,600,700,800,900mm
959
5 Technical requirements
5.1 Basic requirements||tt| |JB/T 6417- -92
Filters should be manufactured in accordance with the requirements of this standard and in accordance with the drawings and technical documents approved by the prescribed procedures. 5.2 Material requirements
5.2.1 Filter material
5.2.1.1 When the relative humidity is 90%~~100%, the filter material should have no particles falling off during long-term use. 5.2.1.2 Soak the filter material in room temperature water for about 15 minutes, and measure the wet filter paper at room temperature. The average transverse tensile strength of the filter material with a width of 15mm should not be less than 2.6N.
5.2.1.3 The water resistance of the filter material is measured according to the regulations of GB4744. The average should not be less than 4980Pa, and a single sample should not be less than 4480Pa. 5.2.1.4 The performance, efficiency, resistance, dust holding capacity, etc. of the filter material should meet the performance requirements of similar filters. 5.2.1.5 The thickness and width of the filter material should be uniform, and the surface should be free of cracks, artificial holes and other trauma. 5.2.1.6 The filter material should not cause secondary pollution. 5.2.2 Adhesives and sealants
5.2.2.1 The shear and tensile strength of the adhesive should be greater than the strength of the filter material, and its moisture resistance should be the same as the filter material. 5.2.2.2 The sealant should ensure that the filter resistance is under the operating limit conditions, does not crack or degumm during operation, and is elastic. Its temperature resistance and moisture resistance are the same as the filter material
5.3 Structural requirements ||tt| |5.3.1 Box structure
5.3.1.1 The filter is composed of a shell (box) and a filter element. Usually the filter element is made of pleated or flat filter material. The filter material should be cleanable or Single use.
5.3.1.2 Non-box type filters are usually made of bag type or roll type with filter element and frame. The filter material should be washable or disposable. 5.3.2 Shell or frame
5.3.2.1 The material of the shell or frame is metal or non-metal. 5.3.2.2 The shell or frame should have sufficient strength and rigidity when used as both the filter material support and the sealing end face of the filter. 5.3.2.3 The shell or frame should have the same moisture-proof requirements as the filter material. 5.3.3 Sealing facilities
5.3.3.1 The filter material and the box or frame should be firmly connected (or bonded) without obvious leaks or separation gaps. There will be no cracking at the bonding points and seams. 5.3.3.2 The end face of the box shell or frame should be equipped with a sealing gasket. The sealing gasket should be flat, have a certain degree of elasticity, and should be firmly bonded to the shell or frame.
5.3.4 Use of cleaning and regeneration
The efficiency of the filter material after regeneration and cleaning should not be less than 85% of the original index, the resistance should not be greater than 15% of the initial resistance, and the strength should not decrease significantly. 5.4 Appearance requirements
5.4.1 The filter box shell, frame or support body shall have no uneven scars or damage, and shall have a smooth and regular appearance. 5.4.2 The filter material is not damaged.
5.5 Dimensional deviations are specified in Table 4.
5.6 Performance requirements
5.6.1 Filtration efficiency:
Table 4
Project
End face side length
H(H)| |tt||960
Filter without housing
500%1.6
>500~s.2
Filter with housing
≤ 500~1.6
>500″3.2
mm
End face
Item
Month
Depth
JB/T 6417—92
Continued Table 4
Filter without housing
Filter with housing
+1.6
0
1.6
八3°
1.6
mrm
a.1 type filter is tested according to the method specified in GB12218. For atmospheric dust with a particle size of not less than 5um, the rated Under the air volume, the initial counting efficiency is less than 40%; for artificial dust with a median diameter of dP50 equal to 8 μm, the filtration efficiency is less than 70%. b. Class 2 filters are tested according to the method specified in GB12218. For atmospheric dust with a particle size of not less than 5um, Under the rated air volume, its initial counting efficiency is between 40% and 80%; for artificial dust filtration efficiency with a median diameter of dP50 equal to 8m, it is between 70% and 96%
c.Category 3 filters are tested according to the method specified in GB12218. For atmospheric dust with a particle size of not less than 1 μm, the initial counting efficiency is between 20% and 70% under rated air volume. d. Category 4 filters are tested according to the methods specified in GB12218. For atmospheric dust with a particle size of not less than 1um, the initial counting efficiency is between 70% and 99% under rated air volume. Category 5 filters are tested according to the method specified in GB12218. For atmospheric dust with a particle size of not less than 0.5 μm, the initial counting efficiency is between 95% and 99.5% under the rated air volume e.
. 5.6.2 Initial resistance
shall be tested according to the method specified in GB12218. The initial resistance of the filter under rated air volume: Type 1 and 2 filters are not greater than 50Pa;
a.
Type 3 filters are not greater than 80Pa;
b.||tt ||Type 4 filter is not larger than 100Pa;
c.
d． Category 5 filters are not larger than 150Pa.
Note: The initial resistance shall not exceed 10% of the published resistance. 5.6.3 Dust holding capacity
Each type of filter should have dust holding capacity indicators, be tested according to the methods specified in GB12218, and provide dust holding capacity and resistance curves. The actual dust holding capacity index of each factory filter should not be less than 90% of the published dust holding capacity. 5.6.4 Humidity resistance
When the filter is used under the condition of relative humidity of 90% to 100%, its initial counting efficiency and initial resistance will not change significantly, and there should be no particles falling off during long-term use.
5.7 Transportation requirements
Type 3, 4, and 5 filters are subject to transportation tests in accordance with the provisions of Article 48(6)b of SJ142. After the test, their appearance requirements, overall size deviation, filtration efficiency and initial Resistance, etc. should meet the requirements. 6 Test methods
Except for the provisions of this standard, the rest shall be in accordance with the methods specified in GB12218. 6.1 Appearance requirements
Inspection by hand feeling method and visual method shall comply with the requirements of Article 5.4. 6.2 Dimension deviation
6.2.1 The length dimension is checked with a vernier caliper, and its graduation value should not be greater than 0.1mm. 6.2.2 The flatness is checked with a flat plate and a feeler gauge. The accuracy of the flat plate is level 3, and the thickness of the feeler gauge ranges from 0.02 to 0.5mm. 961
JB/T 6417--92
6.2.3 The verticality is checked with a vernier scale, and its graduation value is not greater than 1°. 6.3 Performance requirements
6.3.1 Filtration efficiency
The filtration efficiency under rated air volume shall be measured according to Article 8.2 of GB12218 and shall comply with the requirements of Article 5.6.1. 6.3.2 Initial resistance
The initial resistance under rated air volume shall be measured according to Article 8.1 of GB12218 and shall comply with the requirements of Article 5.6.2. 6.3.3 Dust holding capacity
6.3.3.1 Balance accuracy
The balance used to measure the dust holding capacity should have a large enough range. The minimum sensitivity of the measured test dust and test body is 0.1g.
6.3.3.2 Test method
The dust holding capacity is determined according to Article 8.3 of GB12218 and shall comply with the requirements of Article 5.6.3. 6.3.4 Moisture resistance
6.3.4.1 Moisture resistance test
When operating at rated air volume, it should be sprayed with a large amount of water for 1 hour without permanent damage. The amount of water sprayed is calculated by spraying 100g of water on the filter's inlet and outlet surface area of ??0.1m.
6.3.4.2 Humidity and overpressure resistance test
Type 3 and 4.5 filters should also undergo a humidity and overpressure resistance test. When operating at rated air volume, they should be sprayed with a large amount of water. When a pressure difference of 3 times occurs between the front and rear of the filter element without causing permanent damage, the filter shall be tested according to Articles 6.3.1 and 6.3.2 after drying and shall comply with Articles 5.6.1 and 5.6. 2 requirements. 6.4 Transportation test
After passing the inspection, the pleated type 3, 4, and 5 filters with shells shall be transported according to the prescribed packaging and markings, and in accordance with the requirements of Article 48(6)b of SJ142 . After the test, the requirements of Article 5.7 shall be met. 7
Inspection rules
7.1 Inspection classification:
a.
Dehuang inspection;
b. Type test.
7.1.1 Outgoing inspection
Each filter should undergo factory inspection and must pass the factory inspection before leaving the factory. The factory inspection items for type 1~~4 filters are the appearance requirements and dimensional deviations in Table 5. The factory inspection items for Class 5 filters should include filtration efficiency, initial resistance and moisture resistance tests. Table 5
Inspection item name
Appearance requirements
Dimensional deviation
Filtration efficiency
Initial resistance
Dust holding capacity||tt ||Moisture resistance
Transportation test
962
Technical requirements
5. 4
5. 5
5.6.1||tt ||5.6.2
5.6.3
5.6.4
5.7
Test method
6.1
6.2||tt| |6.3.1
6.3.2
6.3.3
6.3.4
6.4
primary and secondary terms
secondary term
Main item
Secondary item
Main item
Secondary item
7.1.2 Type inspection
JB/T 6417—92| |tt||7.1.2.1 Type inspection shall be carried out if the filter has any of the following conditions: a new trial-produced product is finalized or an old product is transferred to a factory for production; a.
Changes in product structure, manufacturing process, materials, etc. When it has an impact on product performance; b.
c.
d.
When the product has been out of production for more than one year and resumes production; the factory inspection results are significantly different from the last type inspection hour. 7.1.2.2 Type inspection items are all items in Table 5. 7.1.2.3 Sampling method for type inspection
Select from the qualified products provided by the manufacturer, 3 units will be selected if the quantity is less than 100 units, but the number should not be less than 3 units; 5 units will be selected if the quantity is more than 100 units, but the number The quantity should not be less than 5 units.
7.2 Judgment Principles
7.2.1 For a sample taken, if one of the major items or two of the minor items of the inspection items are unqualified, the sample will be judged as a non-conforming product. 7.2.2 If one sample fails to pass the inspection, double the number will be taken. If there is still one failure to pass the inspection, the batch of filters will be judged as unqualified products.
7.2.3 If more than 3 (including 3) filters have the same defect, the entire batch of products shall also be judged as unqualified. 8 Marking, packaging and storage
8.1 Mark
Each filter should be equipped with a product nameplate in a visible part. The nameplate should comply with the regulations of GB/T13306. The nameplate should at least indicate the following: ||tt ||Product model and name;
a.
b.
Filter model specifications;
Filtration efficiency under rated air volume;
c| |tt||d.
e.
Initial resistance at rated air volume;
Product manufacturing number, product manufacturing date. 8.2 Packaging
8.2.1 The packaging should be able to protect the factory-qualified filter from damage and damage caused by external factors during loading, unloading, transportation, handling, and storage until it is installed by the user.
8.2.2 The filter should be wrapped in a plastic bag. Category 5 filters should be protected on both ends with hard plates of the same size as the end faces and installed in a box. 8.2.3 The filter model, name, quantity, and manufacturer's name should be stated on the packaging box, and text or legends should be used to indicate *Handle with care," "Afraid of getting wet," "Upward," etc. in accordance with the provisions of GB191. 8.3 Storage||tt ||8.3.1 When storing, they should be stacked according to the signs on the packaging boxes. The stacking height should not be too high, so as not to damage, crush or cause the risk of collapse
8.3.2 Filters should not be stored in. Places with high humidity, overcooling, overheating or drastic changes in temperature and humidity, and open-air storage. Additional notes:
This standard was proposed by the Hefei General Machinery Research Institute of the Ministry of Mechanical and Electronic Industry and issued by Suzhou Purification Equipment Factory. Responsible for drafting. The main drafters of this standard are: Xu Guiying and Zhu Xingen 963
6.2 Initial resistance
shall be tested according to the method specified in GB12218. The initial resistance of the filter under rated air volume: Type 1 and 2 filters are not greater than 50Pa;
a.
Type 3 filters are not greater than 80Pa;
b.||tt ||Type 4 filter is not larger than 100Pa;
c.
d． Category 5 filters are not larger than 150Pa.
Note: The initial resistance shall not exceed 10% of the published resistance. 5.6.3 Dust holding capacity
Each type of filter should have dust holding capacity indicators, be tested according to the methods specified in GB12218, and provide dust holding capacity and resistance curves. The actual dust holding capacity index of each factory filter should not be less than 90% of the published dust holding capacity. 5.6.4 Humidity resistance
When the filter is used under the condition of relative humidity of 90% to 100%, its initial counting efficiency and initial resistance will not change significantly, and there should be no particles falling off during long-term use.
5.7 Transportation requirements
Type 3, 4, and 5 filters are subject to transportation tests in accordance with the provisions of Article 48(6)b of SJ142. After the test, their appearance requirements, overall size deviation, filtration efficiency and initial Resistance, etc. should meet the requirements. 6 Test methods
Except for the provisions of this standard, the rest shall be in accordance with the methods specified in GB12218. 6.1 Appearance requirements
Inspection by hand feeling method and visual method shall comply with the requirements of Article 5.4. 6.2 Dimension deviation
6.2.1 The length dimension is checked with a vernier caliper, and its graduation value should not be greater than 0.1mm. 6.2.2 The flatness is checked with a flat plate and a feeler gauge. The accuracy of the flat plate is level 3, and the thickness of the feeler gauge ranges from 0.02 to 0.5mm. 961
JB/T 6417--92
6.2.3 The verticality is checked with a vernier scale, and its graduation value is not greater than 1°. 6.3 Performance requirements
6.3.1 Filtration efficiency
The filtration efficiency under rated air volume shall be measured according to Article 8.2 of GB12218 and shall comply with the requirements of Article 5.6.1. 6.3.2 Initial resistance
The initial resistance under rated air volume shall be measured according to Article 8.1 of GB12218 and shall comply with the requirements of Article 5.6.2. 6.3.3 Dust holding capacity
6.3.3.1 Balance accuracy
The balance used to measure the dust holding capacity should have a large enough range. The minimum sensitivity of the measured test dust and test body is 0.1g.
6.3.3.2 Test method
The dust holding capacity is determined according to Article 8.3 of GB12218 and shall comply with the requirements of Article 5.6.3. 6.3.4 Moisture resistance
6.3.4.1 Moisture resistance test
When operating at rated air volume, it should be sprayed with a large amount of water for 1 hour without permanent damage. The amount of water sprayed is calculated by spraying 100g of water on the filter's inlet and outlet surface area of ??0.1m.
6.3.4.2 Humidity and overpressure resistance test
Type 3 and 4.5 filters should also undergo a humidity and overpressure resistance test. When operating at rated air volume, they should be sprayed with a large amount of water. When a pressure difference of 3 times occurs between the front and rear of the filter element without causing permanent damage, the filter shall be tested according to Articles 6.3.1 and 6.3.2 after drying and shall comply with Articles 5.6.1 and 5.6. 2 requirements. 6.4 Transportation test
After passing the inspection, the pleated type 3, 4, and 5 filters with shells shall be transported according to the prescribed packaging and markings, and in accordance with the requirements of Article 48(6)b of SJ142 . After the test, the requirements of Article 5.7 shall be met. 7
Inspection rules
7.1 Inspection classification:
a.
Dehuang inspection;
b. Type test.
7.1.1 Outgoing inspection
Each filter should undergo factory inspection and must pass the factory inspection before leaving the factory. The factory inspection items for type 1~~4 filters are the appearance requirements and dimensional deviations in Table 5. The factory inspection items for Class 5 filters should include filtration efficiency, initial resistance and moisture resistance tests. Table 5
Inspection item name
Appearance requirements
Dimensional deviation
Filtration efficiency
Initial resistance
Dust holding capacity||tt ||Moisture resistance
Transportation testWww.bzxZ.net
962
Technical requirements
5. 4
5. 5
5.6.1||tt ||5.6.2
5.6.3
5.6.4
5.7
Test method
6.1
6.2||tt| |6.3.1
6.3.2
6.3.3
6.3.4
6.4
primary and secondary terms
secondary term
Main item
Secondary item
Main item
Secondary item
7.1.2 Type inspection
JB/T 6417-92| |tt||7.1.2.1 Type inspection shall be carried out if the filter has any of the following conditions: a new trial-produced product is finalized or an old product is transferred to a factory for production; a.
Changes in product structure, manufacturing process, materials, etc. When it has an impact on product performance; b.
c.
d.
When the product has been out of production for more than one year and resumes production; the factory inspection results are significantly different from the last type inspection hour. 7.1.2.2 Type inspection items are all items in Table 5. 7.1.2.3 Sampling method for type inspection
Select from the qualified products provided by the manufacturer, 3 units will be selected if the quantity is less than 100 units, but the number should not be less than 3 units; 5 units will be selected if the quantity is more than 100 units, but the number The quantity should not be less than 5 units.
7.2 Judgment Principles
7.2.1 For a sample taken, if one of the major items or two of the minor items of the inspection items are unqualified, the sample will be judged as a non-conforming product. 7.2.2 If one sample fails to pass the inspection, double the number will be taken. If there is still one failure to pass the inspection, the batch of filters will be judged as unqualified products.
7.2.3 If more than 3 (including 3) filters have the same defect, the entire batch of products shall also be judged as unqualified. 8 Marking, packaging and storage
8.1 Mark
Each filter should be equipped with a product nameplate in a visible part. The nameplate should comply with the regulations of GB/T13306. The nameplate should at least indicate the following: ||tt ||Product model and name;
a.
b.
Filter model specifications;
Filtration efficiency under rated air volume;
c| |tt||d.
e.
Initial resistance at rated air volume;
Product manufacturing number, product manufacturing date. 8.2 Packaging
8.2.1 The packaging should be able to protect the factory-qualified filter from damage and damage caused by external factors during loading, unloading, transportation, handling, and storage until it is installed by the user.
8.2.2 The filter should be wrapped in a plastic bag. Category 5 filters should be protected on both ends with hard plates of the same size as the end faces and installed in a box. 8.2.3 The filter model, name, quantity, and manufacturer's name should be stated on the packaging box, and text or legends should be used to indicate *Handle with care," "Afraid of getting wet," "Upward," etc. in accordance with the provisions of GB191. 8.3 Storage||tt ||8.3.1 When storing, they should be stacked according to the signs on the packaging boxes. The stacking height should not be too high, so as not to damage, crush or cause the risk of collapse
8.3.2 Filters should not be stored in. Places with high humidity, overcooling, overheating or drastic changes in temperature and humidity, and open-air storage. Additional notes:
This standard was proposed by the Hefei General Machinery Research Institute of the Ministry of Mechanical and Electronic Industry and issued by Suzhou Purification Equipment Factory. Responsible for drafting. The main drafters of this standard are: Xu Guiying and Zhu Xingen 963
6.2 Initial resistance
shall be tested according to the method specified in GB12218. The initial resistance of the filter under rated air volume: Type 1 and 2 filters are not greater than 50Pa;
a.
Type 3 filters are not greater than 80Pa;
b.||tt ||Type 4 filter is not larger than 100Pa;
c.
d． Category 5 filters are not larger than 150Pa.
Note: The initial resistance shall not exceed 10% of the published resistance. 5.6.3 Dust holding capacity
Each type of filter should have dust holding capacity indicators, be tested according to the methods specified in GB12218, and provide dust holding capacity and resistance curves. The actual dust holding capacity index of each factory filter should not be less than 90% of the published dust holding capacity. 5.6.4 Humidity resistance
When the filter is used under the condition of relative humidity of 90% to 100%, its initial counting efficiency and initial resistance will not change significantly, and there should be no particles falling off during long-term use.
5.7 Transportation requirements
Type 3, 4, and 5 filters are subject to transportation tests in accordance with the provisions of Article 48(6)b of SJ142. After the test, their appearance requirements, overall size deviation, filtration efficiency and initial Resistance, etc. should meet the requirements. 6 Test methods
Except for the provisions of this standard, the rest shall be in accordance with the methods specified in GB12218. 6.1 Appearance requirements
Inspection by hand feeling method and visual method shall comply with the requirements of Article 5.4. 6.2 Dimension deviation
6.2.1 The length dimension is checked with a vernier caliper, and its graduation value should not be greater than 0.1mm. 6.2.2 The flatness is checked with a flat plate and a feeler gauge. The accuracy of the flat plate is level 3, and the thickness of the feeler gauge ranges from 0.02 to 0.5mm. 961
JB/T 6417--92
6.2.3 The verticality is checked with a vernier scale, and its graduation value is not greater than 1°. 6.3 Performance requirements
6.3.1 Filtration efficiency
The filtration efficiency under rated air volume shall be measured according to Article 8.2 of GB12218 and shall comply with the requirements of Article 5.6.1. 6.3.2 Initial resistance
The initial resistance under rated air volume shall be measured according to Article 8.1 of GB12218 and shall comply with the requirements of Article 5.6.2. 6.3.3 Dust holding capacity
6.3.3.1 Balance accuracy
The balance used to measure the dust holding capacity should have a large enough range. The minimum sensitivity of the measured test dust and test body is 0.1g.
6.3.3.2 Test method
The dust holding capacity is determined according to Article 8.3 of GB12218 and shall comply with the requirements of Article 5.6.3. 6.3.4 Moisture resistance
6.3.4.1 Moisture resistance test
When operating at rated air volume, it should be sprayed with a large amount of water for 1 hour without permanent damage. The amount of water sprayed is calculated by spraying 100g of water on the filter's inlet and outlet surface area of ??0.1m.
6.3.4.2 Humidity and overpressure resistance test
Type 3 and 4.5 filters should also undergo a humidity and overpressure resistance test. When operating at rated air volume, they should be sprayed with a large amount of water. When a pressure difference of 3 times occurs between the front and rear of the filter element without causing permanent damage, the filter shall be tested according to Articles 6.3.1 and 6.3.2 after drying and shall comply with Articles 5.6.1 and 5.6. 2 requirements. 6.4 Transportation test
After passing the inspection, the pleated type 3, 4, and 5 filters with shells shall be transported according to the prescribed packaging and markings, and in accordance with the requirements of Article 48(6)b of SJ142 . After the test, the requirements of Article 5.7 shall be met. 7
Inspection rules
7.1 Inspection classification:
a.
Dehuang inspection;
b. Type test.
7.1.1 Outgoing inspection
Each filter should undergo factory inspection and must pass the factory inspection before leaving the factory. The factory inspection items for type 1~~4 filters are the appearance requirements and dimensional deviations in Table 5. The factory inspection items for Class 5 filters should include filtration efficiency, initial resistance and moisture resistance tests. Table 5
Inspection item name
Appearance requirements
Dimensional deviation
Filtration efficiency
Initial resistance
Dust holding capacity||tt ||Moisture resistance
Transportation test
962
Technical requirements
5. 4
5. 5
5.6.1||tt ||5.6.2
5.6.3
5.6.4
5.7
Test method
6.1
6.2||tt| |6.3.1
6.3.2
6.3.3
6.3.4
6.4
primary and secondary terms
secondary term
Main item
Secondary item
Main item
Secondary item
7.1.2 Type inspection
JB/T 6417—92| |tt||7.1.2.1 Type inspection shall be carried out if the filter has any of the following conditions: a new trial-produced product is finalized or an old product is transferred to a factory for production; a.
Changes in product structure, manufacturing process, materials, etc. When it has an impact on product performance; b.
c.
d.
When the product has been out of production for more than one year and resumes production; the factory inspection results are significantly different from the last type inspection hour. 7.1.2.2 Type inspection items are all items in Table 5. 7.1.2.3 Sampling method for type inspection
Select from the qualified products provided by the manufacturer, 3 units will be selected if the quantity is less than 100 units, but the number should not be less than 3 units; 5 units will be selected if the quantity is more than 100 units, but the number The quantity should not be less than 5 units.
7.2 Judgment Principles
7.2.1 For a sample taken, if one of the major items or two of the minor items in the inspection items are unqualified, the sample will be judged as a non-conforming product. 7.2.2 If one sample fails to pass the inspection, double the number will be taken. If there is still one failure to pass the inspection, the batch of filters will be judged as unqualified products.
7.2.3 If more than 3 (including 3) filters have the same defect, the entire batch of products shall also be judged as unqualified. 8 Marking, packaging and storage
8.1 Mark
Each filter should have a product nameplate on a visible part. The nameplate should comply with the regulations of GB/T13306. The nameplate should at least indicate the following: ||tt ||Product model and name;
a.
b.
Filter model specifications;
Filtration efficiency under rated air volume;
c| |tt||d.
e.
Initial resistance at rated air volume;
Product manufacturing number, product manufacturing date. 8.2 Packaging
8.2.1 The packaging should be able to protect the factory-qualified filter from damage and damage caused by external factors during loading, unloading, transportation, handling, and storage until it is installed by the user.
8.2.2 The filter should be wrapped in a plastic bag. Category 5 filters should be protected on both ends with hard plates of the same size as the end faces and installed in a box. 8.2.3 The filter model, name, quantity, and manufacturer's name should be stated on the packaging box, and text or legends should be used to indicate *Handle with care," "Afraid of getting wet," "Upward," etc. in accordance with the provisions of GB191. 8.3 Storage||tt ||8.3.1 When storing, they should be stacked according to the signs on the packaging boxes. The stacking height should not be too high, so as not to damage, crush or cause the risk of collapse.
8.3.2 Filters should not be stored in places. Places that are humid, overcooled, overheated, or with drastic changes in temperature and humidity, and stacked in the open. Additional notes:
This standard was proposed by the Hefei General Machinery Research Institute of the Ministry of Mechanical and Electronic Industry. This standard was issued by Suzhou Purification Equipment Factory. Responsible for drafting. The main drafters of this standard are: Xu Guiying and Zhu Xingen 963
7 Transportation requirements
Type 3, 4 and 5 filters shall be transported for testing in accordance with the provisions of Article 48(6)b of SJ142. After the test, their appearance requirements, overall size deviation, filtration efficiency and initial resistance shall meet the requirements. . 6 Test methods
Except for the provisions of this standard, the rest shall be in accordance with the methods specified in GB12218. 6.1 Appearance requirements
Inspection by hand feeling method and visual method shall comply with the requirements of Article 5.4. 6.2 Dimension deviation
6.2.1 The length dimension is checked with a vernier caliper, and its graduation value should not be greater than 0.1mm. 6.2.2 The flatness is checked with a flat plate and a feeler gauge. The accuracy of the flat plate is level 3, and the thickness of the feeler gauge ranges from 0.02 to 0.5mm. 961
JB/T 6417--92
6.2.3 The verticality is checked with a vernier scale, and its graduation value is not greater than 1°. 6.3 Performance requirements
6.3.1 Filtration efficiency
The filtration efficiency under rated air volume shall be measured according to Article 8.2 of GB12218 and shall comply with the requirements of Article 5.6.1. 6.3.2 Initial resistance
The initial resistance under rated air volume shall be measured according to Article 8.1 of GB12218 and shall comply with the requirements of Article 5.6.2. 6.3.3 Dust holding capacity
6.3.3.1 Balance accuracy
The balance used to measure the dust holding capacity should have a large enough range. The minimum sensitivity of the measured test dust and test body is 0.1g.
6.3.3.2 Test method
The dust holding capacity is determined according to Article 8.3 of GB12218 and shall comply with the requirements of Article 5.6.3. 6.3.4 Moisture resistance
6.3.4.1 Moisture resistance test
When operating at rated air volume, it should be sprayed with a large amount of water for 1 hour without permanent damage. The amount of water sprayed is calculated by spraying 100g of water on the filter's inlet and outlet surface area of ??0.1m.
6.3.4.2 Humidity and overpressure resistance test
Type 3 and 4.5 filters should also undergo a humidity and overpressure resistance test. When operating at rated air volume, they should be sprayed with a large amount of water. When a pressure difference of 3 times occurs between the front and rear of the filter element without causing permanent damage, the filter shall be tested according to Articles 6.3.1 and 6.3.2 after drying and shall comply with Articles 5.6.1 and 5.6. 2 requirements. 6.4 Transportation test
After passing the inspection, the pleated type 3, 4, and 5 filters with shells shall be transported according to the prescribed packaging and markings, and in accordance with the requirements of Article 48(6)b of SJ142 . After the test, the requirements of Article 5.7 shall be met. 7
Inspection rules
7.1 Inspection classification:
a.
Dehuang inspection;
b. Type test.
7.1.1 Outgoing inspection
Each filter should undergo factory inspection and must pass the factory inspection before leaving the factory. The factory inspection items for type 1~~4 filters are the appearance requirements and dimensional deviations in Table 5. The factory inspection items for Class 5 filters should include filtration efficiency, initial resistance and moisture resistance tests. Table 5
Inspection item name
Appearance requirements
Dimensional deviation
Filtration efficiency
Initial resistance
Dust holding capacity||tt ||Moisture resistance
Transportation test
962
Technical requirements
5. 4
5. 5
5.6.1||tt ||5.6.2
5.6.3
5.6.4
5.7
Test method
6.1
6.2||tt| |6.3.1
6.3.2
6.3.3
6.3.4
6.4
primary and secondary terms
secondary term
Main item
Secondary item
Main item
Secondary item
7.1.2 Type inspection
JB/T 6417—92| |tt||7.1.2.1 Type inspection shall be carried out if the filter has any of the following conditions: a new trial-produced product is finalized or an old product is transferred to a factory for production; a.
Changes in product structure, manufacturing process, materials, etc. When it has an impact on product performance; b.
c.
d.
When the product has been out of production for more than one year and resumes production; the factory inspection results are significantly different from the last type inspection hour. 7.1.2.2 Type inspection items are all items in Table 5. 7.1.2.3 Sampling method for type inspection
Select from the qualified products provided by the manufacturer, 3 units will be selected if the quantity is less than 100 units, but the number should not be less than 3 units; 5 units will be selected if the quantity is more than 100 units, but the number The quantity should not be less than 5 units.
7.2 Judgment Principles
7.2.1 For a sample taken, if one of the major items or two of the minor items of the inspection items are unqualified, the sample will be judged as a non-conforming product. 7.2.2 If one sample fails to pass the inspection, double the number will be taken. If there is still one failure to pass the inspection, the batch of filters will be judged as unqualified products.
7.2.3 If more than 3 (including 3) filters have the same defect, the entire batch of products shall also be judged as unqualified. 8 Marking, packaging and storage
8.1 Mark
Each filter should be equipped with a product nameplate in a visible part. The nameplate should comply with the regulations of GB/T13306. The nameplate should at least indicate the following: ||tt ||Product model and name;
a.
b.
Filter model specifications;
Filtration efficiency under rated air volume;
c| |tt||d.
e.
Initial resistance at rated air volume;
Product manufacturing number, product manufacturing date. 8.2 Packaging
8.2.1 The packaging should be able to protect the factory-qualified filter from damage and damage caused by external factors during loading, unloading, transportation, handling, and storage until it is installed by the user.
8.2.2 The filter should be wrapped in a plastic bag. Category 5 filters should be protected on both ends with hard plates of the same size as the end faces and installed in a box. 8.2.3 The filter model, name, quantity, and manufacturer's name should be stated on the packaging box, and text or legends should be used to indicate *Handle with care," "Afraid of getting wet," "Upward," etc. in accordance with the provisions of GB191. 8.3 Storage||tt ||8.3.1 When storing, they should be stacked according to the signs on the packaging boxes. The stacking height should not be too high, so as not to damage, crush or cause the risk of collapse
8.3.2 Filters should not be stored in. Places with high humidity, overcooling, overheating or drastic changes in temperature and humidity, and open-air storage. Additional notes:
This standard was proposed by the Hefei General Machinery Research Institute of the Ministry of Mechanical and Electronic Industry and issued by Suzhou Purification Equipment Factory. Responsible for drafting. The main drafters of this standard are: Xu Guiying and Zhu Xingen 963
7 Transportation requirements
Category 3, 4, and 5 filters shall be transported for testing in accordance with the provisions of Article 48(6)b of SJ142. After the test, their appearance requirements, overall size deviation, filtration efficiency, and initial resistance shall meet the requirements. . 6 Test methods
Except for the provisions of this standard, the rest shall be in accordance with the methods specified in GB12218. 6.1 Appearance requirements
Inspection by hand feeling method and visual method shall comply with the requirements of Article 5.4. 6.2 Dimension deviation
6.2.1 The length dimension is checked with a vernier caliper, and its graduation value should not be greater than 0.1mm. 6.2.2 The flatness is checked with a flat plate and a feeler gauge. The accuracy of the flat plate is level 3, and the thickness of the feeler gauge ranges from 0.02 to 0.5mm. 961
JB/T 6417--92
6.2.3 The verticality is checked with a vernier scale, and its graduation value is not greater than 1°. 6.3 Performance requirements
6.3.1 Filtration efficiency
The filtration efficiency under rated air volume shall be measured according to Article 8.2 of GB12218 and shall comply with the requirements of Article 5.6.1. 6.3.2 Initial resistance
The initial resistance under rated air volume shall be measured according to Article 8.1 of GB12218 and shall comply with the requirements of Article 5.6.2. 6.3.3 Dust holding capacity
6.3.3.1 Balance accuracy
The balance used to measure the dust holding capacity should have a large enough range. The minimum sensitivity of the measured test dust and test body is 0.1g.
6.3.3.2 Test method
The dust holding capacity is determined according to Article 8.3 of GB12218 and shall comply with the requirements of Article 5.6.3. 6.3.4 Moisture resistance
6.3.4.1 Moisture resistance test
When operating at rated air volume, it should be sprayed with a large amount of water for 1 hour without permanent damage. The amount of water sprayed is calculated by spraying 100g of water on the filter's inlet and outlet surface area of ??0.1m.
6.3.4.2 Humidity and overpressure resistance test
Type 3 and 4.5 filters should also undergo a humidity and overpressure resistance test. When operating at rated air volume, they should be sprayed with a large amount of water. When a pressure difference of 3 times occurs between the front and rear of the filter element without causing permanent damage, the filter shall be tested according to Articles 6.3.1 and 6.3.2 after drying and shall comply with Articles 5.6.1 and 5.6. 2 requirements. 6.4 Transportation test
After passing the inspection, the pleated type 3, 4, and 5 filters with shells shall be transported according to the prescribed packaging and markings, and in accordance with the requirements of Article 48(6)b of SJ142 . After the test, the requirements of Article 5.7 shall be met. 7
Inspection rules
7.1 Inspection classification:
a.
Dehuang inspection;
b. Type test.
7.1.1 Outgoing inspection
Each filter should undergo factory inspection and must pass the factory inspection before leaving the factory. The factory inspection items for type 1~~4 filters are the appearance requirements and dimensional deviations in Table 5. The factory inspection items for Class 5 filters should include filtration efficiency, initial resistance and moisture resistance tests. Table 5
Inspection item name
Appearance requirements
Dimensional deviation
Filtration efficiency
Initial resistance
Dust holding capacity||tt ||Moisture resistance
Transportation test
962
Technical requirements
5. 4
5. 5
5.6.1||tt ||5.6.2
5.6.3
5.6.4
5.7
Test method
6.1
6.2||tt| |6.3.1
6.3.2
6.3.3
6.3.4
6.4
primary and secondary terms
secondary term
Main item
Secondary item
Main item
Secondary item
7.1.2 Type inspection
JB/T 6417-92| |tt||7.1.2.1 Type inspection shall be carried out if the filter has any of the following conditions: a new trial-produced product is finalized or an old product is transferred to a factory for production; a.
Changes in product structure, manufacturing process, materials, etc. When it has an impact on product performance; b.
c.
d.
When the product has been out of production for more than one year and resumes production; the factory inspection results are significantly different from the last type inspection hour. 7.1.2.2 Type inspection items are all items in Table 5. 7.1.2.3 Sampling method for type inspection
Select from the qualified products provided by the manufacturer, 3 units will be selected if the quantity is less than 100 units, but the number should not be less than 3 units; 5 units will be selected if the quantity is more than 100 units, but the number The quantity should not be less than 5 units.
7.2 Judgment Principles
7.2.1 For a sample taken, if one of the major items or two of the minor items of the inspection items are unqualified, the sample will be judged as a non-conforming product. 7.2.2 If one sample fails to pass the inspection, double the number will be taken. If there is still one failure to pass the inspection, the batch of filters will be judged as unqualified products.
7.2.3 If more than 3 (including 3) filters have the same defect, the entire batch of products shall also be judged as unqualified. 8 Marking, packaging and storage
8.1 Mark
Each filter should have a product nameplate on a visible part. The nameplate should comply with the regulations of GB/T13306. The nameplate should at least indicate the following: ||tt ||Product model and name;
a.
b.
Filter model specifications;
Filtration efficiency under rated air volume;
c| |tt||d.
e.
Initial resistance at rated air volume;
Product manufacturing number, product manufacturing date. 8.2 Packaging
8.2.1 The packaging should be able to protect the factory-qualified filter from damage and damage caused by external factors during loading, unloading, transportation, handling, and storage until it is installed by the user.
8.2.2 The filter should be wrapped in a plastic bag. Category 5 filters should be protected on both ends with hard plates of the same size as the end faces and installed in a box. 8.2.3 The filter model, name, quantity, and manufacturer's name should be stated on the packaging box, and text or legends should be used to indicate *Handle with care," "Afraid of getting wet," "Upward," etc. in accordance with the provisions of GB191. 8.3 Storage||tt ||8.3.1 When storing, they should be stacked according to the signs on the packaging boxes. The stacking height should not be too high, so as not to damage, crush or cause the risk of collapse
8.3.2 Filters should not be stored in. Places with high humidity, overcooling, overheating or drastic changes in temperature and humidity, and open-air storage. Additional notes:
This standard was proposed by the Hefei General Machinery Research Institute of the Ministry of Mechanical and Electronic Industry and issued by Suzhou Purification Equipment Factory. Responsible for drafting. The main drafters of this standard are: Xu Guiying and Zhu Xingen 963
Category 5 filters should also undergo a moisture and overpressure resistance test. When operating at rated air volume, they should be sprayed with a large amount of water. The sprayed water should cause 3 times the pressure difference between the front and rear of the filter core without causing permanent damage. After drying, the filter shall be tested according to Articles 6.3.1 and 6.3.2 and shall meet the requirements of Articles 5.6.1 and 5.6.2. 6.4 Transportation test
After passing the inspection, the pleated type 3, 4, and 5 filters with shells shall be transported according to the prescribed packaging and markings, and in accordance with the requirements of Article 48(6)b of SJ142 . After the test, the requirements of Article 5.7 shall be met. 7
Inspection rules
7.1 Inspection classification:
a.
Dehuang inspection;
b. Type test.
7.1.1 Outgoing inspection
Each filter should undergo factory inspection and must pass the factory inspection before leaving the factory. The factory inspection items for type 1~~4 filters are the appearance requirements and dimensional deviations in Table 5. The factory inspection items for Class 5 filters should include filtration efficiency, initial resistance and moisture resistance tests. Table 5
Inspection item name
Appearance requirements
Dimensional deviation
Filtration efficiency
Initial resistance
Dust holding capacity||tt ||Moisture resistance
Transportation test
962
Technical requirements
5. 4
5. 5
5.6.1||tt ||5.6.2
5.6.3
5.6.4
5.7
Test method
6.1
6.2||tt| |6.3.1
6.3.2
6.3.3
6.3.4
6.4
primary and secondary terms
secondary term
Main item
Secondary item
Main item
Secondary item
7.1.2 Type inspection
JB/T 6417—92| |tt||7.1.2.1 Type inspection shall be carried out if the filter has any of the following conditions: a new trial-produced product is finalized or an old product is transferred to a factory for production; a.
Changes in product structure, manufacturing process, materials, etc. When it has an impact on product performance; b.
c.
d.
When the product has been out of production for more than one year and resumes production; the factory inspection results are significantly different from the last type inspection hour. 7.1.2.2 Type inspection items are all items in Table 5. 7.1.2.3 Sampling method for type inspection
Select from the qualified products provided by the manufacturer, 3 units will be selected if the quantity is less than 100 units, but the number should not be less than 3 units; 5 units will be selected if the quantity is more than 100 units, but the number The quantity should not be less than 5 units.
7.2 Judgment Principles
7.2.1 For a sample taken, if one of the major items or two of the minor items in the inspection items are unqualified, the sample will be judged as a non-conforming product. 7.2.2 If one sample fails to pass the inspection, double the number will be taken. If there is still one failure to pass the inspection, the batch of filters will be judged as unqualified products.
7.2.3 If more than 3 (including 3) filters have the same defect, the entire batch of products shall also be judged as unqualified. 8 Marking, packaging and storage
8.1 Mark
Each filter should be equipped with a product nameplate in a visible part. The nameplate should comply with the regulations of GB/T13306. The nameplate should at least indicate the following: ||tt ||Product model and name;
a.
b.
Filter model specifications;
Filtration efficiency under rated air volume;
c| |tt||d.
e.
Initial resistance at rated air volume;
Product manufacturing number, product manufacturing date. 8.2 Packaging
8.2.1 The packaging should be able to protect the factory-qualified filter from damage and damage caused by external factors during loading, unloading, transportation, handling, and storage until it is installed by the user.
8.2.2 The filter should be wrapped in a plastic bag. Category 5 filters should be protected on both ends with hard plates of the same size as the end faces and installed in a box. 8.2.3 The filter model, name, quantity, and manufacturer's name should be stated on the packaging box, and text or legends should be used to indicate *Handle with care," "Afraid of getting wet," "Upward," etc. in accordance with the provisions of GB191. 8.3 Storage||tt ||8.3.1 When storing, they should be stacked according to the signs on the packaging boxes. The stacking height should not be too high, so as not to damage, crush or cause the risk of collapse
8.3.2 Filters should not be stored in. Places with high humidity, overcooling, overheating or drastic changes in temperature and humidity, and open-air storage. Additional notes:
This standard was proposed by the Hefei General Machinery Research Institute of the Ministry of Mechanical and Electronic Industry and issued by Suzhou Purification Equipment Factory. Responsible for drafting. The main drafters of this standard are: Xu Guiying and Zhu Xingen 963
Category 5 filters should also undergo a moisture and overpressure resistance test. When operating at rated air volume, they should be sprayed with a large amount of water. The sprayed water should cause 3 times the pressure difference between the front and rear of the filter element without causing permanent damage. After drying, the filter shall be tested according to Articles 6.3.1 and 6.3.2 and shall meet the requirements of Articles 5.6.1 and 5.6.2. 6.4 Transportation test
After passing the inspection, the pleated type 3, 4, and 5 filters with shells shall be transported according to the prescribed packaging and markings, and in accordance with the requirements of Article 48(6)b of SJ142 . After the test, the requirements of Article 5.7 shall be met. 7
Inspection rules
7.1 Inspection classification:
a.
Dehuang inspection;
b. Type test.
7.1.1 Outgoing inspection
Each filter should undergo factory inspection and must pass the factory inspection before leaving the factory. The factory inspection items for type 1~~4 filters are the appearance requirements and dimensional deviations in Table 5. The factory inspection items for Class 5 filters should include filtration efficiency, initial resistance and moisture resistance tests. Table 5
Inspection item name
Appearance requirements
Dimensional deviation
Filtration efficiency
Initial resistance
Dust holding capacity||tt ||Moisture resistance
Transportation test
962
Technical requirements
5. 4
5. 5
5.6.1||tt ||5.6.2
5.6.3
5.6.4
5.7
Test method
6.1
6.2||tt| |6.3.1
6.3.2
6.3.3
6.3.4
6.4
primary and secondary terms
secondary term
Main item
Secondary item
Main item
Secondary item
7.1.2 Type inspection
JB/T 6417—92| |tt||7.1.2.1 Type inspection shall be carried out if the filter has any of the following conditions: a new trial-produced product is finalized or an old product is transferred to a factory for production; a.
Changes in product structure, manufacturing process, materials, etc. When it has an impact on product performance; b.
c.
d.
When the product has been out of production for more than one year and resumes production; the factory inspection results are significantly different from the last type inspection hour. 7.1.2.2 Type inspection items are all items in Table 5. 7.1.2.3 Sampling method for type inspection
Select from the qualified products provided by the manufacturer, 3 units will be selected if the quantity is less than 100 units, but the number should not be less than 3 units; 5 units will be selected if the quantity is more than 100 units, but the number The quantity should not be less than 5 units.
7.2 Judgment Principles
7.2.1 For a sample taken, if one of the major items or two of the minor items of the inspection items are unqualified, the sample will be judged as a non-conforming product. 7.2.2 If one sample fails to pass the inspection, double the number will be taken. If there is still one failure to pass the inspection, the batch of filters will be judged as unqualified products.
7.2.3 If more than 3 (including 3) filters have the same defect, the entire batch of products shall also be judged as unqualified. 8 Marking, packaging and storage
8.1 Mark
Each filter should have a product nameplate on a visible part. The nameplate should comply with the regulations of GB/T13306. The nameplate should at least indicate the following: ||tt ||Product model and name;
a.
b.
Filter model specifications;
Filtration efficiency under rated air volume;
c| |tt||d.
e.
Initial resistance at rated air volume;
Product manufacturing number, product manufacturing date. 8.2 Packaging
8.2.1 The packaging should be able to protect the factory-inspected filter from damage and damage caused by external factors during loading, unloading, transportation, handling, and storage until the user installs it in place.
8.2.2 The filter should be wrapped in a plastic bag. Category 5 filters should be protected on both ends with hard plates of the same size as the end faces and installed in a box. 8.2.3 The filter model, name, quantity, and manufacturer's name should be stated on the packaging box, and text or legends should be used to indicate *Handle with care," "Afraid of getting wet," "Upward," etc. in accordance with the provisions of GB191. 8.3 Storage||tt ||8.3.1 When storing, they should be stacked according to the signs on the packaging boxes. The stacking height should not be too high, so as not to damage, crush or cause the risk of collapse
8.3.2 Filters should not be stored in. Places that are humid, overcooled, overheated or with drastic changes in temperature and humidity and stacked in the open. Additional notes:
This standard was proposed by the Hefei General Machinery Research Institute of the Ministry of Mechanical and Electronic Industry and issued by Suzhou Purification Equipment Factory. Responsible for drafting. The main drafters of this standard are: Xu Guiying and Zhu Xingen 963
1. The packaging should be able to protect the filter that has passed the factory inspection from damage and damage caused by external factors during loading, unloading, transportation, handling, and storage until the user installs it in place.
8.2.2 The filter should be wrapped in a plastic bag. Category 5 filters should be protected on both ends with hard plates of the same size as the end faces and installed in a box. 8.2.3 The filter model, name, quantity, and manufacturer's name should be stated on the packaging box, and text or legends should be used to indicate *Handle with care," "Afraid of getting wet," "Upward," etc. in accordance with the provisions of GB191. 8.3 Storage||tt ||8.3.1 When storing, they should be stacked according to the signs on the packaging boxes. The stacking height should not be too high, so as not to damage, crush or cause the risk of collapse
8.3.2 Filters should not be stored in. Places with high humidity, overcooling, overheating or drastic changes in temperature and humidity, and open-air storage. Additional notes:
This standard was proposed by the Hefei General Machinery Research Institute of the Ministry of Mechanical and Electronic Industry and issued by Suzhou Purification Equipment Factory. Responsible for drafting. The main drafters of this standard are: Xu Guiying and Zhu Xingen 963
1. The packaging should be able to protect the filter that has passed the factory inspection from damage and damage caused by external factors during loading, unloading, transportation, handling, and storage until the user installs it in place.
8.2.2 The filter should be wrapped in a plastic bag. Category 5 filters should be protected on both ends with hard plates of the same size as the end faces and installed in a box. 8.2.3 The filter model, name, quantity, and manufacturer's name should be stated on the packaging box, and text or legends should be used to indicate *Handle with care," "Afraid of getting wet," "Upward," etc. in accordance with the provisions of GB191. 8.3 Storage||tt ||8.3.1 When storing, they should be stacked according to the signs on the packaging boxes. The stacking height should not be too high, so as not to damage, crush or cause the risk of collapse
8.3.2 Filters should not be stored in. Places with high humidity, overcooling, overheating or drastic changes in temperature and humidity, and open-air storage. Additional notes:
This standard was proposed by the Hefei General Machinery Research Institute of the Ministry of Mechanical and Electronic Industry and issued by Suzhou Purification Equipment Factory. Responsible for drafting. The main drafters of this standard are: Xu Guiying and Zhu Xingen 963
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.