This standard specifies the definition, product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of brushes. This standard applies to calligraphy and painting brushes made of wolf hair, sheep hair, rabbit hair, etc. This standard does not apply to specific types of brushes. QB/T 2293-1997 Brush QB/T2293-1997 Standard download decompression password: www.bzxz.net

QB/T2293—1997
This standard has made the following two major changes to SG374-1987 "Brush". 1. The division of high, medium and low grades has been removed from the technical requirements. 2. The sampling schemes of GB/T2828—1987 "Counting Sampling Procedure and Sampling Table for Batch Inspection (Applicable to Inspection of Continuous Batch)" and GB/T2829—1987 "Counting Sampling Procedure and Sampling Table for Periodic Inspection (Applicable to Inspection of Stability of Production Process)" have been adopted in the inspection rules.
This standard will replace SG374-1984 from the date of implementation. This standard was proposed by the Quality Standards Department of China Light Industry General Association. This standard is under the jurisdiction of the National Stationery Standardization Center. The drafting units of this standard are: Shanghai Laozhou Huchen Pen Factory, Beijing Maolanzhai Industry and Trade Company, and the National Stationery Standardization Center. The main drafters of this standard are: Xue Che, Zhang Xiaojing, and Wu Bin. 247
Light Industry Standard of the People's Republic of China
QB/T2293--1997
This standard specifies the definition, product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of brushes. This standard applies to calligraphy and painting brushes made of wolf hair, sheep hair, rabbit hair, etc. as the main materials. This standard does not apply to specific types of brushes.
2 Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest version of the following standards. GB/T2828-1987 Batch inspection counting sampling procedure and sampling table (applicable to continuous batch inspection) GB/T2829-1987 Periodic inspection counting sampling procedure and sampling table (applicable to the inspection of production process stability) 3 Definitions
3.1 Full length of pen tip: the full length from the tip to the root of the pen. 3.2 Pen length (exposed): the length from the tip to the mouth of the pen. 3.3 Pen tip diameter: the diameter of the pen tip exposed at the mouth of the pen. 4 Product classification
4.1 See Figure 1 for product structure.
1—Full length of pen tip; 2—Pen tip; 3—Pen tip diameter; 4—Pen shaft, 5 Hanging head: 6—Pen top Figure 1 Www.bzxZ.net
4.2 According to the main raw materials, it is divided into: wolf hair, sheep hair, rabbit hair, stone pen, etc. 5 Technical requirements
5.1 Dimensional deviation shall comply with the provisions of Table 1. Table 1
Pen tip length (tip)
Below 20
Below 30
Below 40
Approved by China Light Industry Federation on April 10, 1997
Limit deviation
Implemented on December 1, 1997
All quality requirements shall comply with the provisions of Table 2. No.
Indicator name
Pen tip length
Durability
Pen tip performance
Firmness
Pen tip appearance
Pen barrel appearance
Pen barrel shape
Printed characters
Test method
Below 20
20～30
Above 30
QB/T2293—1997
Font area
15×15
25×25
35×35
Write “正” characters Unit: Thousand
After writing the character “正”, the pen tip should not be bald , no hair loss, neat brush tip, no rubbing, no sharpness within 2mm, no false tip, no bald tip, no bend, brush head diameter
5 or less
6~10
16 or more
Diameter of the middle part of the pen shaft
10 or less
15 or less
16 or more
Static load tension N
After the static load test, the brush head and the pen shaft should not be disconnected, the brush head is smooth, the hair is even
no splitting, no cracking, no splitting
Each connection part is firm and flat, and the pen shaft has no obvious skin rubbing roundness
6.1 Dimension deviation: measured with a vernier caliper with an accuracy of 0.02mm. Durability: written on Yuanshu paper.
Below 200
201~250
251~300
Above 300
Font is straight and clear, and the handwriting is even
Straightness
Pen head performance: Soak the pen in warm water (20℃±2℃) for 2h, moisten one-third of the exposed length of the pen head, and use visual inspection to check firmness: During the inspection, hold the pen head with your hand, suspend the code at the end of the pen body according to the specified static load index, keep it still for 10s, and then visually inspect. 6.42
Pen head appearance: Use visual inspection to check. 6.5
6.6Pen body appearance is checked by visual inspection. 6.7Pen body shape: First, classify the pens according to specifications. To detect its roundness, use a vernier caliper with an accuracy of 0.02mm, select the middle part of the pen body, and measure the difference between its maximum diameter and minimum diameter. To check its straightness, place the pen on a flat surface and insert the feeler gauges of different specifications into the gap according to the regulations. The ones that fail to pass are qualified.
6.8 Engraving: visual inspection.
Inspection rules
7.1 Product inspection is divided into factory inspection and type inspection. 249
7.2 This inspection adopts the piece-rate method, and the sample unit is QB/T2293--1997
7.3 Factory inspection adopts GB/T2828 special inspection level S-3 or general inspection level 1, normal inspection-one sampling plan. 7.4 The items, unqualified classification, technical requirements, test methods, and qualified quality level (AQL) of factory inspection shall be as specified in Table 3. Table 3
Classification of non-conformity
Performance of nib
Shape shape
Appearance of nib
Shape appearance
Printed characters
Durability
Firmness
Acceptable quality level (AQL)
7.5 Type inspection shall be carried out in accordance with the provisions of GB/T2829, and a single sampling plan of discrimination level shall be adopted. 7.6 Type inspection shall be carried out every six months, and type inspection shall be carried out in any of the following circumstances. a) When there are major changes in structure, materials, and processes during normal production; b) When production is resumed after a three-month suspension; c) When the national quality supervision agency puts forward the requirement for type inspection. 7.7 The items of type inspection, non-conformity classification and non-conformity quality level (RQL) shall be as specified in Table 4. Table 4
Classification of non-conformity
8 Marking, packaging, transportation, storage
8.1 Marking
Inspection items
Durability
Firmness
Pen tip performance
Pen barrel shape
Pen tip appearance
Pen barrel appearance
Printed characters
Dimensional deviation
All kinds of brushes should be marked with pen name, factory name, and trademark on the pen barrel. Non-conforming quality level (RQL)
8.2 Packaging
All kinds of brushes should be packaged and insect repellent should be added. The packaging should be marked with: factory name, factory address, product name, product quantity, factory date, manufacturing unit name, volume, and weight.
8.3 Transportation
Strictly prevent moisture and rain during transportation, and be careful when loading and unloading. 8.4 Storage
8.4.1 The storage room should be dry and ventilated, and moisture-proof. It should not be stored together with acids, alkalis and toxic gases. It should be properly kept to prevent damage to the packaging and products. Pest control agents should be added if the products are stored for more than one year.
8.4.2 The finished products should be stored according to the requirements of 8.4.1. The shelf life is one year from the date of leaving the factory. 250
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