Some standard content:
National Standard of the People's Republic of China
Equipment for eye and face
protection during welding operations1Subject content and scope of application
GB/T 3609.1—94
Replaces GB 3609.1-83
This standard specifies the classification, structure, specifications, materials, technical requirements, inspection methods, inspection rules, marking, packaging, storage, transportation and use of welding eye and face protectors.
This standard applies to all types of welders' protective gear for protecting the eyes and face (including the neck) from harmful factors such as harmful arc, molten metal splash or dust.
2 Reference standards
GB2828 Count sampling procedure and sampling table for batch inspection (applicable to inspection of continuous batches) GB2829 Count sampling procedure and sampling table for periodic inspection (applicable to inspection of stability of production process) GB14866 General technical conditions for eye and face protection
3 Terms
Welding filter weldingfilterlens
Lens for protection against harmful arc light of welding.
4 Classification and marking
4.1 Classification and marking of welding eye protection
Classification is consistent with A-1, A-2 and B-1 types in 4.1.1 of GB14866. Marking is in accordance with the requirements of 4.1.2 of GB14866. Glass welding eye protection is marked as FS-B-shading number. 4.2 Classification of welding masks
The classification is consistent with HM-1 (handheld), HM-2-A (head-mounted), HM-3-A (safety helmet and mask connected) and HM-4 (helmet type) in 4.2 of GB14866.
5 Technical requirements
5.1 Materials
5.1.1 Materials of welding eye protection
The materials of each part of welding eye protection must meet the following conditions: they should have certain strength, elasticity and rigidity; a.
b. They should not be made of materials that are harmful to the skin or flammable; c. The materials used for the eye protection headband should be soft and durable. .5.1.2 Materials of welding mask
Approved by the State Administration of Technical Supervision on December 30, 1994, and implemented on July 1, 1995
GB/T 3609.1-94
Must be made of non-conductive materials that are resistant to high and low temperatures, corrosion, moisture, and flame retardant, and have a certain strength and are opaque. 5.2 Structure
5.2.1 Structure of welding eye protection
The surface should be smooth, without burrs, sharp corners or other defects that may cause discomfort to the eyes and face. Adjustable parts should be flexible and reliable, and structural parts should be easy to replace; they should have good air permeability.
Structure of welding mask
Rivets and other parts should be firm and not loose. Metal parts cannot come into contact with the face, and the lifting parts must be flexible and reliable.
5.3 Specifications
Specifications of welding eye protection
Single lens: The size of the rectangular lens (including the single-piece eye mask) shall not be less than length × width: 108mm × 50mm, and the thickness shall not be greater than a.
b. Double lens: The diameter of the round lens is $62~65mm. The horizontal reference length of the irregular single lens shall not be less than 45mm, the vertical height shall not be less than 40mm, and the thickness shall not be greater than 3.2mm. 5.3.2 Specifications of welding masks
Specifications of various masks are shown in Table 1.
Handheld
Head-mounted
Safety helmet and mask connection
Helmet
HM-2-A
HM-3-A
≥320
≥340
Note: The mass of the mask (excluding accessories such as lenses and safety strips) shall not exceed 500g. 5.4 Field of view
≥210
≥100
Observation window
≥40×90
≥40×90
≥40×90
The outer field of view shall not be less than 80°, the field of view below the eye and face protector composed of two lenses shall not be less than 60°, and the field of view below the eye and face protector composed of one lens shall not be less than 67°.
5.5 Optical performance
5.5.1 Surface quality and intrinsic defects
The center of the lens should be smooth and evenly colored, without scratches, streaks, bubbles, mildew, orange peel, glare, foreign matter or other defects that impair optical performance.
The surface of the mask should be smooth, without protrusions, uniform thickness, and without defects such as delamination and bubbles. 5.5.2 Visible light transmittance of protective film
For colorless transparent lenses, the visible light transmittance should be greater than or equal to 0.89. 5.5.3 Color of welding filter
The color of welding filter cannot be a single color, and it is best to use a mixed color such as yellow, green, brown and gray. The color difference between the left and right eye filters, the optical density value (d) shall not exceed 0.4. 5.5.4 Transmittance of welding filter
The ultraviolet transmittance and infrared transmittance of each shading number shall meet the requirements of Table 2. 5.5.5 Diopter deviation
GB/T 3609.1-94
The diopter deviation of filter and protective film is 28:8%D. Table 2 Transmittance performance requirements of welding filters
Ultraviolet transmittance
Shading number
0.000.003
0.000 003
0.000 003
0.000 003
0.000 003
0.000 003
0. 000 000 76
0. 000 000 27
0. 000 000 094
0. 000 000 034
0.000 006
0. 000 002
0. 000 000 76
0. 000 000 27
0. 000 000 094
0. 000 000 034
Visible light transmittance
0. 000 085
0.000 032
0.000 012
0.000 004 4
0, 000 001 6
0.000 000 61
0. 000 085
0.000 012
0. 000 004 4
0. 000 001 6
0. 000 000 61
0. 000 000 29
Note: ①Between 210nm and 313nm, the transmittance should not exceed the value allowed for 313nm. Infrared transmittance
Near infrared
780~1 300 nm
②Between 313nm and 365nm, the transmittance should not exceed the value allowed for 365nm. ③Between 365nm and 400nm, the average transmittance should not exceed the value allowed for the average transmittance of visible light. 5.5.6 Parallelism
Mid-near infrared
1300~2 000 nm
a. The deviation of the plane lens prism shall not exceed 0.125-; b. The vertical and horizontal prism deviations between the geometric center of the curved lens and other points shall not exceed 0.125^; the prism deviations of the geometric centers of the left and right lenses shall not exceed 0.18-. c.
5.5.7 Light transmittance of welding mask
The light transmittance of welding mask shall be less than the visible light transmittance of No. 14 welding filter. 5.6 Non-optical performance
5.6.1 Strength performance
At room temperature, a 45g steel ball must be able to fall freely from a height of 0.6m to the center of the lens three times without any damage. 5.6.2 Corrosion resistance
After corrosion treatment, there is no corrosion on the surface. 63
5.6.3 Flame retardant performance
GB/T 3609.1—94
The burning speed of the mask material must be less than 76mm/min, and the plastic material is required to extinguish itself within 5s away from the fire source. 6 Technical performance test methods
6.1 Field of view
Same as test method 6.1 in GB14866. 6.2 Surface quality and internal defects
Same as test method 6.2 in GB14866. 6.3 Visible light transmittance of protective sheet
Same as test method 6.3 in GB14866. 6.4 Welding filter color
The test method is the same as that in 6.4 of GB14866. 6.5 Welding filter shading number
Use a transmission density meter with an accuracy of ±0.05d to measure, and then calculate the shading number S according to formula (1). S=1+
Where: S——shading number;
d—filter density value.
Filters are divided into 19 shading numbers, see Table 2. 6.6 Welding filter transmittance
6.6.1 Instrument
Use a spectrophotometer with a wavelength range of 200~2000nm and a transmittance accuracy of ±0.01 for testing. 6.6.2 Ultraviolet transmittance
Only two wavelengths of 313nm and 365nm are required to measure the absorption value and then calculate its transmittance. 6.6.3. Infrared transmittance
requires that the transmittance be read every 10nm in the 780～2000nm band, and finally the average transmittance be calculated according to the formula. Near infrared transmittance is specified as 780～~1300nm, calculated according to formula (2): C1300#
520J780n
r(a)da:
Mid-infrared transmittance is specified as 1.300～2000nm, calculated according to formula (3): 700J1300.mm
6.7 Diopter deviation
is the same as the test method 6.5 in GB14866. 6.8 Parallelism
is the same as the test method 6.6 in GB14866. 6.9 Strength test
is the same as the test method 6.7 in GB14866. 6.10 Corrosion resistance test
The test method is the same as that of 6.8 in GB14866. 6.11 Flame retardant test
(2)
(3)
Cut 3 pieces of 13mm×127mm from the thinnest part of the tested mask and fix them. The long axis of the sample is parallel to the horizontal plane and the short axis is at a 45° angle to the horizontal direction, as shown in the figure below. Light the other end with an alcohol lamp and measure its burning length for 10s. The calculated burning speed should be less than 76 mm/min.
6.12 Mask light transmission test
GB/T 3609.1-94
Put the thinnest part of the front of the mask under a 500W incandescent lamp to observe whether there is light transmission. If there is light transmission, use a spectrophotometer to test it.
Usage conditions
7.1 Use of welding filter
You can choose to use it according to Table 3.
Table 3 Selection of welding filter
Light invitation number
Replacement of protective sheet
When the transmittance of the protective sheet is less than 0.89, replace it with a new one. Arc welding and cutting work
Protect side light and stray light
Assistant
Arc work below 30A
Arc work between 30 and 75A
Arc work between 75 and 200A
Arc work between 200 and 400A
Arc work above 400A
8 Inspection rules
8.1 Factory inspection
GB/T 3609.1—94
The quality inspection department of the manufacturer shall conduct the normal inspection and sampling plan specified in GB2828. The products of the same variety and specification delivered at the same time under the same production conditions shall be the inspection batch. The inspection items, unqualified classification, inspection level, qualified quality level, etc. shall meet the requirements of Table 4 and Table 5 respectively.
Table 4 Sampling plan for factory inspection of welding eye protection Inspection items
Surface quality and intrinsic paralysis
Shading number
Parallelism
Ultraviolet and infrared transmittance
Diopter deviation
Strength performance
Corrosion resistance
Specifications and dimensions, structure, field of view
Inspection items
Structure, specifications and dimensions
Flame retardant properties
Light transmission
Corrosion resistance
Type inspection||t t||Unqualified classification
Inspection level
Table 5 Sampling plan for factory inspection of welding masks
Unqualified classification
8.2.1 Type inspection should be carried out when any of the following factors occura.
Inspection level
When the product structure, material, and process have changed significantly and may affect the performance of the product; when the product is resumed after being discontinued for more than one year;
When the national quality supervision and inspection agency requires type inspection; after normal production, the annual periodic inspection is carried out; when the enterprise applies for a product production license.
Qualified quality level
Qualified quality level
8.2.2 Type inspection shall be carried out according to the one-time sampling plan specified in GB2829. Ten pieces of welding eye protectors and three pieces of welding masks are randomly selected from the qualified batch. The inspection items, unqualified classification, discrimination level, unqualified quality level, and judgment array must meet the requirements of Table 6 and Table 7 respectively. 66
Sample size
Sample size
Inspection items
Surface quality and internal defects
Shading number
Parallelism
Ultraviolet and infrared transmittance
Diopter deviation
Strength performance
Corrosion resistance
Specifications, dimensions, structure, field of view
GB/T 3609.1—94
Sampling plan for type inspection of welding eye protection
Classification of non-conformity
Inspection items
Specifications, dimensions and structure
Flame retardancy
Light transmission
Corrosion resistance
8.2.3 Inspection and treatment
Discrimination level
Non-conformity
Quality level
Sampling plan for type inspection of welding mask
Classification of non-conformity
Discrimination level
Non-conformity
Quality level
Discrimination array
Discrimination array
When the type inspection fails, re-inspection shall be carried out. The re-inspection sample size of Class A or Class B non-conforming products shall be doubled, and the sample size of Class C non-conforming products shall be equal to the original sample.
b. After re-inspection, if Class A or Class B is still unqualified, the enterprise shall temporarily stop normal batch production. Only under the supervision of the superior competent department, corrective measures shall be taken and the manufactured products shall be qualified after re-inspection before normal batch production can be resumed. For Class C unqualified products, multiple re-inspections are allowed until they are qualified.
9 Product marking, packaging, storage and transportation
9.1 Marking
The requirements are the same as those in 8.2.1 of GB14866. 9.2 Packaging
9.2.1 Products shall be packed in boxes or cases according to classification, model and specification. Packing box and random materials
Product certificate;
Product manual;
Packing list;
Other relevant technical information.
9.3 Storage
The storage period of products is generally two years. Products that exceed two years shall be sampled and inspected at 2%. They can only be sold if they meet the requirements of this standard after inspection. 9.4 Transportation
During transportation, the products should be protected from corrosion, moisture and pressure. 67
Additional Notes:
GB/T3609.1-94
This standard is proposed by the Ministry of Labor of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Standardization of Labor Protection Products. This standard is drafted by the Beijing Labor Protection Science Research Institute, Henan Xuchang Glasses Factory, and Guangxi Guilin Welding Protection Products Factory. The main drafters of this standard are Li Shuxian, Chen Anli, Lv Yigong, He Xinjing, and Nie Fuzhong. 68
Mid-infrared transmittance is specified as 1.300～2000nm, calculated according to formula (3): 700J1300.mm
6.7 Diopter deviation
Same as test method 6.5 in GB14866. 6.8 Parallelism
Same as test method 6.6 in GB14866. 6.9 Strength test
Same as test method 6.7 in GB14866. 6.10 Corrosion resistance test
Same as test method 6.8 in GB14866. 6.11 Flame retardant test
（２）
（3）
Cut 3 pieces of 13mm×127mm from the thinnest part of the mask to be tested and fix them. The long axis of the sample is parallel to the horizontal plane and the short axis is at an angle of 45° to the horizontal direction, as shown in the figure below. Light the other end with an alcohol lamp, measure its burning length for 10 seconds, and calculate the burning speed to be less than 76 mm/min.
6.12 Test of light transmission performance of mask
GB/T 3609.1-94
Place the thinnest part of the front of the mask under a 500W incandescent lamp to observe whether there is light transmission. If there is light transmission, use a spectrophotometer to test it.
Use conditions
7.1 Use of welding filter
You can choose to use it according to Table 3.
Table 3 Selection of welding filter
Invitation number
Replacement of protective sheet
When the transmittance of the protective sheet is less than 0.89, replace it with a new one. Arc welding and cutting work
Protect side light and stray light
Assistant
Arc work below 30A
Arc work between 30 and 75A
Arc work between 75 and 200A
Arc work between 200 and 400A
Arc work above 400A
8 Inspection rules
8.1 Factory inspection
GB/T 3609.1—94
The quality inspection department of the manufacturer shall conduct the normal inspection and sampling plan specified in GB2828. The products of the same variety and specification delivered at the same time under the same production conditions shall be the inspection batch. The inspection items, unqualified classification, inspection level, qualified quality level, etc. shall meet the requirements of Table 4 and Table 5 respectively.
Table 4 Sampling plan for factory inspection of welding eye protection Inspection items
Surface quality and intrinsic paralysis
Shading number
Parallelism
Ultraviolet and infrared transmittance
Diopter deviation
Strength performance
Corrosion resistance
Specifications and dimensions, structure, field of view
Inspection items
Structure, specifications and dimensions
Flame retardant properties
Light transmission
Corrosion resistance
Type inspection||t t||Unqualified classification
Inspection level
Table 5 Sampling plan for factory inspection of welding masks
Unqualified classification
8.2.1 Type inspection should be carried out when any of the following factors occura.
Inspection level
When the product structure, material, and process have changed significantly and may affect the performance of the product; when the product is resumed after being discontinued for more than one year;
When the national quality supervision and inspection agency requires type inspection; after normal production, the annual periodic inspection is carried out; when the enterprise applies for a product production license.
Qualified quality level
Qualified quality level
8.2.2 Type inspection shall be carried out according to the one-time sampling plan specified in GB2829. Ten pieces of welding eye protectors and three pieces of welding masks are randomly selected from the qualified batch. The inspection items, unqualified classification, discrimination level, unqualified quality level, and judgment array must meet the requirements of Table 6 and Table 7 respectively. 66
Sample size
Sample size
Inspection items
Surface quality and internal defects
Shading number
Parallelism
Ultraviolet and infrared transmittance
Diopter deviation
Strength performance
Corrosion resistance
Specifications, dimensions, structure, field of view
GB/T 3609.1—94
Sampling plan for type inspection of welding eye protection
Classification of non-conformity
Inspection items
Specifications, dimensions and structure
Flame retardancy
Light transmission
Corrosion resistance
8.2.3 Inspection and treatment
Discrimination level
Non-conformity
Quality level
Sampling plan for type inspection of welding mask
Classification of non-conformity
Discrimination level
Non-conformity
Quality level
Discrimination array
Discrimination array
When the type inspection fails, re-inspection shall be carried out. The re-inspection sample size of Class A or Class B non-conforming products shall be doubled, and the sample size of Class C non-conforming products shall be equal to the original sample.
b. After re-inspection, if Class A or Class B is still unqualified, the enterprise shall temporarily stop normal batch production. Only under the supervision of the superior competent department, corrective measures shall be taken and the manufactured products shall be qualified after re-inspection before normal batch production can be resumed. For Class C unqualified products, multiple re-inspections are allowed until they are qualified.
9 Product marking, packaging, storage and transportation
9.1 Marking
The requirements are the same as those in 8.2.1 of GB14866. 9.2 Packaging
9.2.1 Products shall be packed in boxes or cases according to classification, model and specification. Packing box and random materials
Product certificate;
Product manual;
Packing list;
Other relevant technical information.
9.3 Storage
The storage period of products is generally two years. Products that exceed two years shall be sampled and inspected at 2%. They can only be sold if they meet the requirements of this standard after inspection. 9.4 Transportation
During transportation, the products should be protected from corrosion, moisture and pressure. 67
Additional Notes:
GB/T3609.1-94
This standard is proposed by the Ministry of Labor of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Standardization of Labor Protection Products. This standard is drafted by the Beijing Labor Protection Science Research Institute, Henan Xuchang Glasses Factory, and Guangxi Guilin Welding Protection Products Factory. The main drafters of this standard are Li Shuxian, Chen Anli, Lv Yigong, He Xinjing, and Nie Fuzhong. 68
Mid-infrared transmittance is specified as 1.300～2000nm, calculated according to formula (3): 700J1300.mm
6.7 Diopter deviation
Same as test method 6.5 in GB14866. 6.8 Parallelism
Same as test method 6.6 in GB14866. 6.9 Strength test
Same as test method 6.7 in GB14866. 6.10 Corrosion resistance test
Same as test method 6.8 in GB14866. 6.11 Flame retardant test
（２）
（3）
Cut 3 pieces of 13mm×127mm from the thinnest part of the mask to be tested and fix them. The long axis of the sample is parallel to the horizontal plane and the short axis is at an angle of 45° to the horizontal direction, as shown in the figure below. Light the other end with an alcohol lamp, measure its burning length for 10 seconds, and calculate the burning speed to be less than 76 mm/min.
6.12 Test of light transmission performance of mask
GB/T 3609.1-94
Place the thinnest part of the front of the mask under a 500W incandescent lamp to observe whether there is light transmission. If there is light transmission, use a spectrophotometer to test it.
Use conditions
7.1 Use of welding filter
You can choose to use it according to Table 3.
Table 3 Selection of welding filter
Invitation number
Replacement of protective sheet
When the transmittance of the protective sheet is less than 0.89, replace it with a new one. Arc welding and cutting work
Protect side light and stray light
Assistant
Arc work below 30A
Arc work between 30 and 75A
Arc work between 75 and 200A
Arc work between 200 and 400A
Arc work above 400A
8 Inspection rules
8.1 Factory inspection
GB/T 3609.1—94
The quality inspection department of the manufacturer shall conduct the normal inspection and sampling plan specified in GB2828. The products of the same variety and specification delivered at the same time under the same production conditions shall be the inspection batch. The inspection items, unqualified classification, inspection level, qualified quality level, etc. shall meet the requirements of Table 4 and Table 5 respectively.
Table 4 Sampling plan for factory inspection of welding eye protection Inspection items
Surface quality and intrinsic paralysis
Shading number
Parallelism
Ultraviolet and infrared transmittance
Diopter deviation
Strength performance
Corrosion resistance
Specifications and dimensions, structure, field of view
Inspection items
Structure, specifications and dimensions
Flame retardant properties
Light transmission
Corrosion resistance
Type inspection||t t||Unqualified classification
Inspection level
Table 5 Sampling plan for factory inspection of welding masks
Unqualified classification
8.2.1 Type inspection should be carried out when any of the following factors occura.
Inspection level
When the product structure, material, and process have changed significantly and may affect the performance of the product; when the product is resumed after being discontinued for more than one year;
When the national quality supervision and inspection agency requires type inspection; after normal production, the annual periodic inspection is carried out; when the enterprise applies for a product production license.
Qualified quality level
Qualified quality level
8.2.2 Type inspection shall be carried out according to the one-time sampling plan specified in GB2829. Ten pieces of welding eye protectors and three pieces of welding masks are randomly selected from the qualified batch. The inspection items, unqualified classification, discrimination level, unqualified quality level, and judgment array must meet the requirements of Table 6 and Table 7 respectively. 66
Sample size
Sample size
Inspection items
Surface quality and internal defects
Shading number
Parallelism
Ultraviolet and infrared transmittance
Diopter deviation
Strength performance
Corrosion resistance
Specifications, dimensions, structure, field of view
GB/T 3609.1—94
Sampling plan for type inspection of welding eye protection
Classification of non-conformity
Inspection items
Specifications, dimensions and structure
Flame retardancy
Light transmission
Corrosion resistance
8.2.3 Inspection and treatment
Discrimination level
Non-conformity
Quality level
Sampling plan for type inspection of welding mask
Classification of non-conformity
Discrimination level
Non-conformity
Quality level
Discrimination array
Discrimination array
When the type inspection fails, re-inspection shall be carried out. The re-inspection sample size of Class A or Class B non-conforming products shall be doubled, and the sample size of Class C non-conforming products shall be equal to the original sample.
b. After re-inspection, if Class A or Class B is still unqualified, the enterprise shall temporarily stop normal batch production. Only under the supervision of the superior competent department, corrective measures shall be taken and the manufactured products shall be qualified after re-inspection before normal batch production can be resumed. For Class C unqualified products, multiple re-inspections are allowed until they are qualified.
9 Product marking, packaging, storage and transportation
9.1 Marking
The requirements are the same as those in 8.2.1 of GB14866. 9.2 Packaging
9.2.1 Products shall be packed in boxes or cases according to classification, model and specification. Packing box and random materials
Product certificate;
Product manual;
Packing list;
Other relevant technical information.
9.3 Storage
The storage period of products is generally two years. Products that exceed two years shall be sampled and inspected at 2%. They can only be sold if they meet the requirements of this standard after inspection. 9.4 Transportation
During transportation, the products should be protected from corrosion, moisture and pressure. 67
Additional Notes:
GB/T3609.1-94
This standard is proposed by the Ministry of Labor of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Standardization of Labor Protection Products. This standard is drafted by the Beijing Labor Protection Science Research Institute, Henan Xuchang Glasses Factory, and Guangxi Guilin Welding Protection Products Factory. The main drafters of this standard are Li Shuxian, Chen Anli, Lv Yigong, He Xinjing, and Nie Fuzhong. 681—94
The quality inspection department of the manufacturer shall conduct a normal inspection sampling plan according to the provisions of GB2828. Products of the same variety and specification delivered at the same time under the same production conditions are the inspection batch. The inspection items, unqualified classification, inspection level, qualified quality level, etc. must meet the requirements of Table 4 and Table 5 respectively.
Table 4 Sampling plan for factory inspection of welding eye protectors Inspection items
Surface quality and intrinsic paralysis
Shading number
Parallelism
Ultraviolet and infrared transmittance
Diopter deviation
Strength performance
Corrosion resistance
Specifications, dimensions, structure, field of view
Inspection items
Structure, specifications and dimensions
Flame retardant performance
Light transmission
Corrosion resistance
Type inspection||t t||Unqualified classification
Inspection level
Table 5 Sampling plan for factory inspection of welding masks
Unqualified classification
8.2.1 Type inspection should be carried out when any of the following factors occura.
Inspection level
When the product structure, material, and process have changed significantly and may affect the performance of the product; when the product is resumed after being discontinued for more than one year;
When the national quality supervision and inspection agency requires type inspection; after normal production, the annual periodic inspection is carried out; when the enterprise applies for a product production license.
Qualified quality level
Qualified quality level
8.2.2 Type inspection shall be carried out according to the one-time sampling plan specified in GB2829. Ten pieces of welding eye protectors and three pieces of welding masks are randomly selected from the qualified batch. The inspection items, unqualified classification, discrimination level, unqualified quality level, and judgment array must meet the requirements of Table 6 and Table 7 respectively. 66
Sample size
Sample size
Inspection items
Surface quality and internal defects
Shading number
Parallelism
Ultraviolet and infrared transmittance
Diopter deviation
Strength performance
Corrosion resistance
Specifications, dimensions, structure, field of view
GB/T 3609.1—94
Sampling plan for type inspection of welding eye protection
Classification of non-conformity
Inspection items
Specifications, dimensions and structure
Flame retardancy
Light transmission
Corrosion resistance
8.2.3 Inspection and treatment
Discrimination level
Non-conformity
Quality level
Sampling plan for type inspection of welding maskbzxZ.net
Classification of non-conformity
Discrimination level
Non-conformity
Quality level
Discrimination array
Discrimination array
When the type inspection fails, re-inspection shall be carried out. The re-inspection sample size of Class A or Class B non-conforming products shall be doubled, and the sample size of Class C non-conforming products shall be equal to the original sample.
b. After re-inspection, if Class A or Class B is still unqualified, the enterprise shall temporarily stop normal batch production. Only under the supervision of the superior competent department, corrective measures shall be taken and the manufactured products shall be qualified after re-inspection before normal batch production can be resumed. For Class C unqualified products, multiple re-inspections are allowed until they are qualified.
9 Product marking, packaging, storage and transportation
9.1 Marking
The requirements are the same as those in 8.2.1 of GB14866. 9.2 Packaging
9.2.1 Products shall be packed in boxes or cases according to classification, model and specification. Packing box and random materials
Product certificate;
Product manual;
Packing list;
Other relevant technical information.
9.3 Storage
The storage period of products is generally two years. Products that exceed two years shall be sampled and inspected at 2%. They can only be sold if they meet the requirements of this standard after inspection. 9.4 Transportation
During transportation, the products should be protected from corrosion, moisture and pressure. 67
Additional Notes:
GB/T3609.1-94
This standard is proposed by the Ministry of Labor of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Standardization of Labor Protection Products. This standard is drafted by the Beijing Labor Protection Science Research Institute, Henan Xuchang Glasses Factory, and Guangxi Guilin Welding Protection Products Factory. The main drafters of this standard are Li Shuxian, Chen Anli, Lv Yigong, He Xinjing, and Nie Fuzhong. 681—94
The quality inspection department of the manufacturer shall conduct a normal inspection sampling plan according to the provisions of GB2828. Products of the same variety and specification delivered at the same time under the same production conditions are the inspection batch. The inspection items, unqualified classification, inspection level, qualified quality level, etc. must meet the requirements of Table 4 and Table 5 respectively.
Table 4 Sampling plan for factory inspection of welding eye protectors Inspection items
Surface quality and intrinsic paralysis
Shading number
Parallelism
Ultraviolet and infrared transmittance
Diopter deviation
Strength performance
Corrosion resistance
Specifications, dimensions, structure, field of view
Inspection items
Structure, specifications and dimensions
Flame retardant performance
Light transmission
Corrosion resistance
Type inspection||t t||Unqualified classification
Inspection level
Table 5 Sampling plan for factory inspection of welding masks
Unqualified classification
8.2.1 Type inspection should be carried out when any of the following factors occura.
Inspection level
When the product structure, material, and process have changed significantly and may affect the performance of the product; when the product is resumed after being discontinued for more than one year;
When the national quality supervision and inspection agency requires type inspection; after normal production, the annual periodic inspection is carried out; when the enterprise applies for a product production license.
Qualified quality level
Qualified quality level
8.2.2 Type inspection shall be carried out according to the one-time sampling plan specified in GB2829. Ten pieces of welding eye protectors and three pieces of welding masks are randomly selected from the qualified batch. The inspection items, unqualified classification, discrimination level, unqualified quality level, and judgment array must meet the requirements of Table 6 and Table 7 respectively. 66
Sample size
Sample size
Inspection items
Surface quality and internal defects
Shading number
Parallelism
Ultraviolet and infrared transmittance
Diopter deviation
Strength performance
Corrosion resistance
Specifications, dimensions, structure, field of view
GB/T 3609.1—94
Sampling plan for type inspection of welding eye protection
Classification of non-conformity
Inspection items
Specifications, dimensions and structure
Flame retardancy
Light transmission
Corrosion resistance
8.2.3 Inspection and treatment
Discrimination level
Non-conformity
Quality level
Sampling plan for type inspection of welding mask
Classification of non-conformity
Discrimination level
Non-conformity
Quality level
Discrimination array
Discrimination array
When the type inspection fails, re-inspection shall be carried out. The re-inspection sample size of Class A or Class B non-conforming products shall be doubled, and the sample size of Class C non-conforming products shall be equal to the original sample.
b. After re-inspection, if Class A or Class B is still unqualified, the enterprise shall temporarily stop normal batch production. Only under the supervision of the superior competent department, corrective measures shall be taken and the manufactured products shall be qualified after re-inspection before normal batch production can be resumed. For Class C unqualified products, multiple re-inspections are allowed until they are qualified.
9 Product marking, packaging, storage and transportation
9.1 Marking
The requirements are the same as those in 8.2.1 of GB14866. 9.2 Packaging
9.2.1 Products shall be packed in boxes or cases according to classification, model and specification. Packing box and random materials
Product certificate;
Product manual;
Packing list;
Other relevant technical information.
9.3 Storage
The storage period of products is generally two years. Products that exceed two years shall be sampled and inspected at 2%. They can only be sold if they meet the requirements of this standard after inspection. 9.4 Transportation
During transportation, the products should be protected from corrosion, moisture and pressure. 67
Additional Notes:
GB/T3609.1-94
This standard is proposed by the Ministry of Labor of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Standardization of Labor Protection Products. This standard is drafted by the Beijing Labor Protection Science Research Institute, Henan Xuchang Glasses Factory, and Guangxi Guilin Welding Protection Products Factory. The main drafters of this standard are Li Shuxian, Chen Anli, Lv Yigong, He Xinjing, and Nie Fuzhong. 68
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