Some standard content:
National Standard of the People's Republic of China
1 Subject content and scope of application
Ball point pen
This standard specifies the quality requirements and inspection methods for ballpoint pens. Pen
This standard applies to various ballpoint pen refills filled with ballpoint pen ink and ballpoint pens. 2 Reference standards
Packaging storage and transportation pictorial marking
GB 679
GB1910
GB 2828
Newsprint
Counting sampling procedures and sampling tables for batch inspection (applicable to inspection of continuous batches)Test methods for oxidation treatment layer of aluminum or aluminum alloy for light industrial productsGB 5945
GB6388Transport packaging delivery and receipt marking
3 Product classification
GB/T4306-92
Replaces GB4306-84
3.1 The specifications of ballpoint pen refills are named as 39, 67, 83, 96, 97, 101, 101-1, 106, 115, 140A, 140B according to their length, ball diameter and refill head diameter. The specifications and dimensions of the above ballpoint pen refills are shown in Appendix B (Supplement). 3.2 According to the different materials and structures used for ballpoint pen parts, they can be divided into high-grade, medium-grade and police-grade ballpoint pens. High-grade products are those with metal refills, metal rods, sleeves or ballpoint pen exterior parts treated with decorative processes, general-grade products are those with plastic refills, plastic rods, sleeves and simple structures, and those between the two are medium-grade products. 4 Technical requirements
4.1 The performance of ballpoint pen refills shall comply with the specifications in Table 1. Approved by the State Bureau of Technical Supervision on September 3, 1992, and implemented on June 1, 1993
Initial writing angle
Ink output
Oil marks, pcs
Stroke length
GB/T 4306-—92
Ball diameter 0.6, 0.7 mm
Ball diameter 1.0 mm
Type 67, 83, 96, 101-1
Type 101.106, 140A, 140B
Type 97, 115
Ball fixation
Other performances of ballpoint pens shall also comply with the requirements of Table 2. For details of the appearance technical requirements in the table, please see Appendix A (supplement). 4.2
Length of refill exposed from the pen
Flexibility of refill mechanism
Project name
Pen tip diameter not more than 2.5mm
Pen tip diameter greater than 2.5mm
Difference between inner diameter of pen tip and outer diameter of pen tip
Pen clip strength
Corrosion resistance
Impact resistance
5 Test method
5.1 Initial writing angle test
High- and medium-grade products
General-grade products
Chrome plating layer
Oxide film
High-grade products
Middle-grade products
High-grade products
Middle-grade products
Technical requirements
≥200|| tt||≥1000
≥2000
No drop
Technical requirements
Flexible use and reset conversion, the ball does not expose when reset 0.2
4min no bottom exposed
3min no bottom exposed
40s no bottom exposed
20s no bottom exposed
Normal ink discharge, no cracking, deformation or shedding of parts and components. Complete parts:
The logo and handwriting can be recognized;
The surface is smooth;
The whole pen and accessories have no obvious tilt or gap
GB/T4306-~92
The writing angle refers to the angle α formed by the tangent line through the ball seat edge and the ball and the axis of the pen core (see Figure 1). Figure 1
5.1.1 Test instrument: projector with a magnification of more than 30 times. 5.1.2 Test method and steps
Wipe the tip of the unwritten ballpoint pen and place it on the workbench of the hand projector so that the tip image is displayed on the projection screen. Adjust the focal length to make the projection image clear. Move and rotate the workbench so that the horizontal and vertical coordinate axes on the projection screen are tangent to the ball image through the ball seat edge, and read the angle values β, β2 indicated by the instrument when they are tangent. Then calculate the writing angle α according to formula (1) or formula (2). When α is greater than 45°, use formula (1); when α is less than 45°, use formula (2). When α is less than 45°, use formula (2). When α is less than 45°, the horizontal and vertical coordinate axes on the projection screen are tangent to the ball image through the ball seat edge.
α = 45° + IB = βal
Where: β, β, are the angle readings when the horizontal and vertical coordinate axes are tangent to the ball image through the ball seat edge, respectively. , Q
Writing angle,
5.2 Ink output test
The ink output test refers to the test of the ink output capacity of the pen core after 200m of marking. 5.2.7 Test apparatus
"8\-character writing instrument;
Analytical balance with a sensitivity of not less than 0.001g. 5.2.2
Test material: No. 1 newsprint in accordance with GB1910. Test conditions
Ambient temperature: 20~25℃,
Ambient relative humidity: 50%~70%.
Test method and steps
Weigh the weight G of the unwritten pen refill on the analytical balance, (1)
Adjust the writing instrument's *8\-character stroke speed to 45±5mm/s, the paper moving speed to 175±15mm/min, and the writing fixture load to 50±2g
Install the pen refill into the pen holder (the total weight of the pen refill and pen holder should be 5~8g, and the pen holder should not be sealed), and then clamp the pen on the writing instrument 23
GB/T 4306—92
, and adjust the test pen axis to form an inclination angle of 65°±2° with the plane of the marking paper; d. Turn on the machine to mark, and observe whether there is any breakage during the marking process. If the breakage is found, remove the pen core, wipe off the ink accumulated on the pen tip with alcohol cotton, and then draw five circles of ±20～25mm on the test paper with bare hands. If the line can be drawn at this time, continue to clamp the pen on the writing instrument to mark. The above treatment is limited to one time. If If the line is still interrupted after treatment, it should be treated as a broken line; e. When the length of the line is 200m, remove the test pen core, wipe off the ink accumulated on the edge of the pen head ball seat with alcohol cotton, and then weigh the weight of the pen core Gz on the analytical balance;
f. Calculate the ink output W according to formula (3).
Where: W—
Ink output, mm\;
G,—weight of the pen core without writing, mg,
G,—weight of the pen core after writing 200m, mgD—ink density, mg/mm.
5.3 Oil oozing test
G,— G2
A test to measure the state of excessive ink left on the paper when writing. 5.3.1 Test instruments
a. "g\" writing instrument;
b. Reading microscope with a reading accuracy of 0.01 mm. 5.3.2 Test material: No. 1 newsprint in accordance with GB1910. 5.3.3 Test conditions
a, ambient temperature: 20~25℃,
b. ambient relative humidity: 50%~～70%. (3)
5.3.4 Test method and steps
Use alcohol cotton to wipe off the ink accumulated on the edge of the ball seat of the pen tip that has passed the ink output test, and continue to draw lines for 50m according to b, c, d in 5.2.4, and take the 50m drawn sample paper as the oil mark sample paper. In this section of sample paper, the number of oil marks for each pen must be 10 or less.
The oil mark inspection is carried out under an incandescent lamp with an illumination of 200～~2501x. Use a reading microscope to check the line width. When the line width exceeds the value specified in Table 3, it is an oil mark.
Ball diameter
Line width
Any continuous oil oozing trace is counted as one regardless of the length, and two discontinuous oil oozing traces with a spacing of less than or equal to "8" are also counted as one. The 39-type refill is not subject to the oil oozing test.
5.4 Strike length test
The stroke length test refers to the test of the shortest writing length that the ballpoint pen refill must reach without breaking the line. 5.4.1 Test instrument: "8-character writing instrument". 5.4.2 Test material: No. 1 newsprint in accordance with GB1910. 5.4.3 Test conditions
a. Ambient temperature: 20~～25℃;
b. Ambient relative humidity: 50%～70%.
GB/T 4306-92
5.4.4 Clamp the pen core that has passed the tests in 5.2 and 5.3 on the writing instrument, and continue to draw lines according to the provisions of b, c, and d in 5.2.4, and the length of the lines should reach the length specified in Table 1 (including the 250m of lines drawn in the tests in 5.2 and 5.3). 5.5 Ball fixation test
Ball fixation test refers to the test of the fastness of the ball and the ball seat. 5.5.1 Test instrument: centrifugal sedimentation device.
5.5.2 Test material: No. 1 newsprint in accordance with GB1910. 5.5.3 Test method and steps
Remove the protective film of the pen tip of the unwritten pen refill, and draw a line on the newsprint by hand until the ink flows normally. Then install the pen refill on the centrifuge equipped with a special bracket, so that the pen tip is facing downward (outward) and empty. Start the centrifugal sedimentation device and accelerate it to an acceleration of 5000±200m/s? in the direction of the pen refill for 30s, and then shut down; b.
After shutting down, take out the pen refill and check whether the ball has fallen off. c.
The pen refill that has passed the ball fixation test shall not be used for other project tests. 5.6 Test of the length of the refill exposed from the pen
5.6.1 Test gauge: Vernier caliper with an accuracy of not less than 0.02mm. 5.6.2 Test conditions
Ambient temperature: 20~25℃.
5.6.3 Test method and steps
Use the depth gauge and main scale end of the vernier caliper to measure the length of the refill exposed. 5.7 Flexibility test of the refill mechanism
5.7.1 Test material: Newsprint of No.~ in accordance with GB1910. 5.7.2 Test method and steps
a. Remove or rotate the refill mechanism of the ballpoint pen, and the conversion between the use state and the reset state should be flexible, so that the ballpoint pen that can write normally is in the reset state, and then make the pen shaft perpendicular to the surface of the test paper, and draw a b.
line on the newsprint by hand, and it is qualified if no line can be drawn.
5.8 Test of the difference between the inner diameter of the pen head and the outer diameter of the refill head 5.8.1 Test measuring tool: Vernier caliper with an accuracy of not less than 0.02am. 5.8.2 Test conditions
Ambient temperature: 20~25℃.
5.8.3 Test method and steps
Use a vernier caliper to measure the minimum inner diameter of the pen head and the maximum outer diameter of the refill head, and then calculate the difference h according to formula (4). —
In the formula: h—
The difference between the inner diameter of the pen head and the outer diameter of the refill head, mm,
The measured minimum inner diameter of the pen head, mm, d- The measured maximum outer diameter of the refill head, mm. 5.9 Pen clip clamping force test
5.9.1 Test instrument
Pen clip fatigue instrument;
Pen clip clamping force measuring instrument;
Surface roughness R. greater than 0.32~0.63; thickness 0.8±0.02mm; surface hardness HRC not less than 58 metal insert. 2.5
5.9.2 Test method and steps
5.9.2.1 Pen clip fatigue test
GB/T 4306---92
Install the pen holder with pen clip on the clamping frame of the pen clip fatigue instrument, and insert the push piece 3mm above the bead between the pen clip and the pen holder, adjust the push piece reciprocating stroke 3±0.2mm, reciprocating speed 60~70 times/min, start the instrument to perform pen clip fatigue test. The elastic clip is fatigued 100 times, the spring clip is fatigued 500 times, and the fixed clip is not fatigued. 5.9.2.2 Pen clip clamping force test
Fix the pen cap of the sample pen that has undergone the fatigue test on the fixture of the pen clip clamping force tester, and insert the insert between the pen cap and the pen clip to a depth of 10±1mm. Start the instrument to displace the insert relative to the pen cap until the insert is separated from the pen clip. The instrument indication value when the insert is separated from the pen clip is the pen clip clamping force value of the test pen cap. Plastic pen clips are not subjected to clamping force test.
5.10 Corrosion resistance test
5.10.1 Chrome plating corrosion resistance test
5.10.1.1 Test equipment
a. Water bath;
b. Thermometer with an accuracy of not less than 1°;
c. Beaker with a capacity of 500mL;
d. Volumetric cylinder with a capacity of 500mL.
5.10.1.2 Reagents
a. Hydrochloric acid (GB622);
b. Ethanol (GB 679) with a concentration of 95%. 5.10.1.3 Test conditions
Environmental temperature: 25±2℃.
5.10.1.4 Test method and steps
Mix hydrochloric acid and distilled water in a ratio of 1:2 as the test solution. Take 250mL of the above test solution with a measuring tube and put it in a 500mL beaker. Then place it in a water bath and heat it to 25±2℃. b.
Wipe the test piece with cotton dipped in ethanol to remove the surface grease and dry it naturally; immerse the test piece in the test solution and keep it for the time specified in Table 2. d.
e. Take out the test piece from the test solution, wash it, and it is qualified if the bottom is not exposed by visual inspection (trademarks, stitches, and cuts are not considered to be exposed). 5.10.2 Test for corrosion resistance of oxide filmwww.bzxz.net
5.10.2.1 Test conditions
Ambient temperature: 25±2℃.
5.10.2.2 Test method
According to 2.2 alkali resistance titration method in GB5945. 5.11 Impact resistance test
5.11.1 Test tool: fir board with a thickness of 30mm. 5.11.2 Test methods and steps
Place a fir board on the ground;
The ballpoint pen with a core ejection mechanism should be in the reset state (the fixed ballpoint pen should be covered with a pen cap), then keep the ballpoint pen parallel to the board surface, and drop it freely from a height of 1m above the ground to the board surface; check the test pen, write with bare hands, and it is qualified if it can draw 10 circles with a diameter of 20~25mm, and the parts are not cracked, deformed, or falling off.
5.12 Appearance test
GB/T4306-92
It is carried out under an incandescent lamp with an illumination of 200~2501x, see Appendix A (Supplement) for details. 6 Inspection rules
The inspection of ballpoint pens is divided into type inspection and factory inspection. 6.1 Type inspection
6.1.1 Type inspection must be carried out when any of the following situations occur: a. In normal production, there should be regular inspections at least twice a year; b. When designing new products, improving old product designs, and when there are major changes in production technology conditions; when resuming production after a suspension of three months or more; d. When the national quality supervision agency proposes a requirement for type inspection. 6.1.2 During type inspection, more than 80 products should be randomly selected from the products as test samples, and 20 of them should be selected as test samples. All items listed in Chapter 4 should be inspected item by item, and the inspection pass rate should be calculated on a single item basis. Among the four requirements for appearance, except for "component integrity", which is calculated as a single item, the other three items are calculated as a comprehensive pass rate (see Appendix A for details). Among the inspection items, the pass rate of the length of the line, the fixation of the ball, the integrity of the parts and the flexibility of the core ejection mechanism must reach 100%. If there is an unqualified item, a sample can be taken from the inspection sample for retesting, and the retest result shall prevail. The pass rate of other technical requirements is 90%. If there is an unqualified item, a sample can be taken from the inspection sample for retesting, and the test result shall be determined by the cumulative pass rate. 6.2 Factory Inspection||tt| |6.2.1 Factory inspection shall be carried out in accordance with GB2828.
6.2.2 Factory inspection items, non-conforming categories, sampling plan types, inspection level (IL), and acceptable quality level (AQL) shall be in accordance with Table 4.
Inspection items
Flexibility of core ejection mechanism
Complete parts
Recognizable markings
Initial writing angle
Pen grip strength
6.2.3 Determination of batch quality
Non-conforming categories
Test method
Sampling plan type
Batch quality is determined by the number of unqualified products per 100 units of products. Only when the products reach the qualified quality level specified in both Class A and Class B, can the inspection batch be judged as qualified. 6.2.4 Disposition after inspection
Focus. Class A unqualified products shall not be shipped out of the factory. The production department may reorganize the products and submit them for inspection again. After passing the inspection, they may be shipped out of the factory. However, the initial inspection of the batch will still be considered unqualified. bFor Class B unqualified batches, the production department may rework or downgrade them When downgrading, the product should have obvious downgrading Chinese symbols such as "substandard" or "substandard". 27
7 Marking, packaging, transportation, storage
7.1 Marking
7.1.1 Each ballpoint pen should have the following markings: a.
Manufacturer's name or its abbreviation or registered trademark; b. Product model.
7.1.2 Each ballpoint pen refill should have the following markings: Manufacturer's name or its abbreviation or registered trademark; a.
Production date or batch number;
GB/T 4306-92
Refills that can be used for archival writing should have the word "DA". 7.2 Packaging
7.2.1 The ballpoint pen packaging box should have the product name, model, number of pens, manufacturer's name and address. The packaging box should be accompanied by a product certificate. 7.2.2 The packaging box should have the standard number, product name, model, manufacturer's name, address, weight, volume, number of products inside, production date and other marks. The graphic marks on the packaging box should comply with the provisions of GB191 and GB6388. 7.2.3 The packaging materials of the transport packaging should meet the needs of long-distance transportation. 7.3 Transportation
The finished product is strictly prohibited from being exposed to the sun and rain during transportation and should be prevented from contact with organic gases. 7.4 Storage
7.4.1 Ballpoint pens should be stored in a dry and well-ventilated warehouse. The storage temperature is 0~40℃ and the relative humidity is not more than 80%. 7.4.2 The shelf life of ballpoint pens is two years from the date of production. 28
GB/T4306-92
Appendix A
Detailed technical requirements for ballpoint pen appearance, test methods and type inspection qualified rate ratio (supplement)
A1 See Table A1 for the detailed technical requirements for ballpoint pen appearance and the corresponding test methods and type inspection qualified rate ratio. Table A1
Technical requirements
Parts are complete
Markings and handwritings
Recognizable
Surface is smooth
The whole pen and accessories have no obvious
Flying slant seams
The whole pen has no missing parts
Commercial and intermediate products have no cracks, and the length of the crack at the mouth of the general product is <2mm. The length of the crack in the middle of the rod sleeve is ≤10mm
The connection function of each part is intact, and there is no leakage Oil
Bead pen markings should comply with 7.1.1 and be identifiable
Test method
Vernier caliper measurement
Ball pen refill markings should comply with 7.1.2, self-test
and identifiable
The markings and contents of the packaging box should comply with 7.2. The length of the thread pattern of the rod sleeve is ≤15mm, and the width is ≤0.2mm (the width of other parts is ≤0.1m). The thread pattern is 10 mmThe number of silk lines is ≤2
The length of the rod sleeve is ≤6mm, the width is <1.5mmzThe spacing of the rubbing hair is =10mmThe number of torn hair lines is ≤2
The average diameter of the surface parts with noisy colors and stains is ≤0.6mm; the spacing is ≥10mmThe number of points is ≤3
The average diameter of the surface parts is ≤0.5mm*The spacing is ≥10mmThe number of points, the rod sleeve is ≤2 each, and the other parts are 1 each
There is no hidden pattern of 2mm on the mouth of each surface part of the general grade, and no hidden pattern of ≤10m in the middle of each rod sleeve
The plating of each part is not allowed to peel off
The bending value of the whole pen is less than or equal to 0.4% of the length of the whole penThe fit gap between each part is ≤0.3mm
The coaxiality deviation of each part is ≤0.3mm
The pen clip has no obvious skew
Note: n is the number of inspection samples.
Vernier caliper measurement
Vernier caliper measurement
Vernier caliper measurement
Vernier caliper warpage
Vernier caliper measurement
Measure with a plug
Vernier caliper measurement
Single product
Single item qualified
Ratio ratio
15/alcohol
Visual comparison with actual sample
Inspection sample
Qualified ratio ratio
Qualified ratio
A2 Test method for bending value of whole pen
GB/T4306~92
A2.1 Test method for bending value of removable sleeve and rotary structure ballpoint pen Place the whole pen basically horizontally on the bending instrument, and the \V" frame fulcrums are near the pen shaft and at the bottom. Place the dial indicator contact at about 1mm from the end of the pen tip and the pen clip toward the pen tip, 1/3 of the way from the two end points to the pen clip, and rotate the pen circumferentially by hand. The maximum difference in the readings shown on the dial indicator is the bending value of the entire pen.
A2.2 Test method for bending value of ballpoint pens with other structures Place the entire pen basically horizontally on the bending instrument, and allow about 1mm of the "V" frame to be exposed at both ends of the pen shaft. Place the dial indicator contact at about 1/3 of the total length of the pen near the front end of the pen shaft, and rotate the pen circumferentially by hand. The maximum difference in the readings shown on the dial indicator is the bending value of the entire pen. Appendix B
Specifications of ballpoint pen refills
(supplement)
39.5±0.3
39 type refills
67 type refills
83.5 ± 0. 3
83 refill
GB/T 4306--92
96 ± 0. 3
96 refill
97.3±0.3
97 refill
101.5±0.3
101 and 101~1 refill
16.6±0.3
106 refill
33 ±1
88:819
GB/T4306-92
116 ±0.5
115 refill
110 ±0.4
140A refill
140B refill
Additional notes:
This standard is proposed by the Ministry of Light Industry of the People's Republic of China. This standard is under the jurisdiction of the National Pen Standardization Center. This standard was drafted by the National Pen Standardization Center. The main drafters of this standard are Yan Shiwei, Wei Guili, and Chen Qimu. This standard refers to JISS6015 "Ballpoint Pen" and JISS6039 "Ballpoint Pen Refill". 32
00-0 99-191 Test method for the bending value of ballpoint pens with retractable sleeves and rotating structures Place the entire pen on the bending instrument in a basic horizontal position. The V-shaped support points are the end of the pen near the pen tip and the pen clip about 1mm from the pen tip. Place the dial indicator contact at 1/3 of the two end points in the direction near the pen clip. Rotate the pen circumferentially by hand. The maximum difference in the readings shown on the percentage indicator is the bending value of the entire pen.
A2.2 Test method for the bending value of ballpoint pens with other structures Place the entire pen on a basic horizontal position. Place it on the bending instrument, and make both ends of the pen stick out about 1mm from the "V" frame, place the dial indicator contact near the front end of the pen stick at about 1/3 of the total length of the pen, and rotate the pen circumferentially by hand. The maximum difference in the readings shown on the dial indicator is the bending value of the whole pen. Appendix B
Ballpoint Pen Core Specifications
(Supplement)
39.5±0.3
39 Pen Core
67 Pen Core
83.5 ± 0. 3
83 refill
GB/T 4306--92
96 ± 0. 3
96 refill
97.3±0.3
97 refill
101.5±0.3
101 and 101~1 refill
16.6±0.3
106 refill
33 ±1
88:819
GB/T4306-92
116 ±0.5
115 refill
110 ±0.4
140A refill
140B refill
Additional notes:
This standard is proposed by the Ministry of Light Industry of the People's Republic of China. This standard is under the jurisdiction of the National Pen Standardization Center. This standard was drafted by the National Pen Standardization Center. The main drafters of this standard are Yan Shiwei, Wei Guili, and Chen Qimu. This standard refers to JISS6015 "Ballpoint Pen" and JISS6039 "Ballpoint Pen Refill". 32
00-0 99-191 Test method for the bending value of ballpoint pens with retractable sleeves and rotating structures Place the entire pen on the bending instrument in a basic horizontal position. The V-shaped support points are the end of the pen near the pen tip and the pen clip about 1mm from the pen tip. Place the dial indicator contact at 1/3 of the two end points in the direction near the pen clip. Rotate the pen circumferentially by hand. The maximum difference in the readings shown on the percentage indicator is the bending value of the entire pen.
A2.2 Test method for the bending value of ballpoint pens with other structures Place the entire pen on a basic horizontal position. Place it on the bending instrument, and make both ends of the pen stick out about 1mm from the "V" frame, place the dial indicator contact near the front end of the pen stick at about 1/3 of the total length of the pen, and rotate the pen circumferentially by hand. The maximum difference in the readings shown on the dial indicator is the bending value of the whole pen. Appendix B
Ballpoint Pen Core Specifications
(Supplement)
39.5±0.3
39 Pen Core
67 Pen Core
83.5 ± 0. 3
83 refill
GB/T 4306--92
96 ± 0. 3
96 refill
97.3±0.3
97 refill
101.5±0.3
101 and 101~1 refill
16.6±0.3
106 refill
33 ±1
88:819
GB/T4306-92
116 ±0.5
115 refill
110 ±0.4
140A refill
140B refill
Additional notes:
This standard is proposed by the Ministry of Light Industry of the People's Republic of China. This standard is under the jurisdiction of the National Pen Standardization Center. This standard was drafted by the National Pen Standardization Center. The main drafters of this standard are Yan Shiwei, Wei Guili, and Chen Qimu. This standard refers to JISS6015 "Ballpoint Pen" and JISS6039 "Ballpoint Pen Refill". 32
00-0 99-19
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