Some standard content:
ICS 97.220.30
Classification number: Y56
Registration number: 15753-2005
Light Industry Standard of the People's Republic of China
QB/T2701-2005
Daige QB/T3906-1999, QB/13907-1999 Table tennis net
Tuble tennis netassemhk
2005-03-19 Issued
2005-09-01 Implementation
National Development and Reform Commission of the People's Republic of China Issued
QB/T2701—2005
This standard is consistent with the 2004 edition of the International Table Tennis Federation (TTF) Technical Rules for Table Tennis Competitions Technical Single Article T2 Table Tennis Net, and the two are not equivalent. This standard is 0R/T3906—1999 Table Tennis Net>RQ/T3907—19996 Table Tennis Net? In the revision of the standard, the chapter "Supplementary Classification List" was changed, and the grid structure was divided into two categories: the media clamp type and the spring pin type (Chapter 3 of this standard). Table 1 was added to describe the parameters and dimensions of the grid rope installation, such as the length, tension of the grid, height H of the grid body, and the original plate (4.1 of this standard). The self-supporting grid connection and the color of the grid were added in 4.3.2 of this standard; the requirements for the variable holding force of the double clamp ends of the grid, the fire resistance, etc. were added (Section 4.4.2 and 4.1.1 of this standard): A pair of inspection samples were made appropriately (Section 6 of this standard). All the standard components in this standard are standardized This standard is jointly sponsored by China Sports Group Co., Ltd. and Erhaihong Shuangshiguandu Sports Goods Co., Ltd., and the international participants of this standard are: Beijing Sports Industry United Company and Zhongshan Lianzi Equipment Co., Ltd. The main originator of this standard is: GB/T7903-1987, QB/T3906-1999;G/T790M11987, QB/T3907-1999, and QB/T3908-1999. From the date of implementation of this standard, it replaces the original light industry standards QB3-1993 for hand tennis and QB/T3907-1999 for table tennis.
1 Scope
Table tennis net
QB/E2701—2CD5
This standard specifies the types, requirements, test methods, inspection rules and markings, packaging, transportation and storage of table tennis nets (hereinafter referred to as "nets").
This standard is used for table tennis nets for comparison, training and other sports. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. This is a pre-existing document, and any subsequent revisions (excluding errors) are not applicable to the latest version of this standard. However, the parties shall study whether to use the latest versions of these documents without reaching an agreement based on this standard. The document is not dated, and its latest version is applicable to this standard. CB/3828.12003 Counting test sequence Part 1: Acceptance limit (AOL. Retrieval test plan GB/2829-2002 Counting oil sample and table (applicable to knife → hole stability test) 3 Classification
3.1 According to gradual control, it is divided into instantaneous sales type, sharp elastic type, etc., 3.2 According to the quality, it is divided into three types: superior product, first-class product and fast product. 3.3 The names of the components of the piece through the grid frame are shown in 1. 1-Self-grid hanging: 3-Height section key; 1-Grid meter selection 4-5 Figure 1u) Schematic diagram of table tennis net frame structure
QB/T:2701—2005
Hot state bolt
Net bottom point pool
: Net merchant Xie Jie plastic inspection
1. Frame length: one inner frame width: one net space length: one visible length: [one light angle: one meaning width: one teaching stomach transmission:, ball,, crying quality,, total quality: one net length country 1b) Schematic diagram of table tennis net frame structure country
4.1 The number and size of the British standard
The water parameters and size requirements of the individual 1. Table 1 Basic parameters and dimensions ||tt| ... 2701-2005
Unit is meter
Complete product
Base, medium size
Adjustment standard
4.2.2 The net should be a complete net. The net should be set at a fixed speed: On the net, the tension of the net should be lower than the tension of the net. When the net is subjected to a certain pressure, the net should not sag more than [0. 4.2.3 Badminton net The color of the net is gray, dark blue, black, and the color of the net top is white; the net should have a color similar to that of the net bottom edge to ensure that the net is completely connected to the self-supporting net pole: the bottom edge of the net should have a color similar to that of the net:
4.2.4 The net pattern is square and the size should be consistent. 4.2.5 The sewing of the net should be even, firm, flat, and the stitches should be neat, without any stitches, 4.3 Appearance of the grid
The surface of the grid can be sprayed with baking varnish, the color is dark, and the color should be uniform: Superior product: The surface is smooth, neat, and matte, without peeling, obvious particles, flow, bumps, etc. Product: The surface is shiny, flat, and there should be obvious light, and there should be no itching, obvious grid, paint flow, bubbles, convexity, etc. Fraud:
Taiwan store product: There is obvious reflection or affect the use 4.3.2 The vertical mesh of the grid frame should be the same color, and the color should not be the same as the color of the material. The surface should be smooth. 4.4 Stability of grid clamping 4.4.1 The grid frame should not rotate or move under the following external forces. a) First-class products: the grid is pulled left and right for 35N: 6) First-class products and qualified products, the grid is pulled right and left for 18N. 4.4.2 The clamping force of the grid frame should be greater than 290T. 4.4.3 The clamping device should be easy to operate and should not be loose after being tightened with the ball table. 4.4.4 The upper and lower clamps should be made of protective materials, and the upper and lower clamps should not rotate with the tightening bolt to protect the ball table. 45 Adjustment (connection) device
The net product adjustment device and the net rope connection device should be equipped with a square plate, and the work is called 5 Test method
5.1 Net frame length, net frame height
Put the net frame on a special flat plate and measure it with a vernier caliper! 5.2 Net column diameter or side length, clamping rate, splint length, splint width, length of the hanging net rope tension device, frame height, and splint thickness are measured with a cup ruler.
5.3 Net height, edge width, mesh side length and side width Use a 41u×10mm steel bar to pass through the two ends of the net: one end is fixed on the measuring frame: the other end is hung with a weight of 150g to make the net naturally straight and measure with a steel tape measure and a vernier caliper (see Figure 2).
Figure 2 Net test
5.1 Verticality of the net post (using the net frame length difference standard) QR/T 2701—205
Install the net on a special flat plate (see Figure 3), use a vernier caliper to measure the height of the net post, up and down, and the method of measurement. 4L=,L-
Figure 3 Test of verticality of net post
5.5 Verticality of the center of net
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Set the steel case on the table, adjust the net to make it regular and hang 10 bean objects in the center of the net, measure with high vernier caliper, and see if it meets the requirements of 4.2.2
5.6 Stability of net frame
Fix the net frame correctly on the special table board (different from the table board of each type), measure according to the method shown in Figure 4, and gradually increase the objects or do it, which should meet the requirements of 4.4.1, and meet the requirements of 4.4.1.
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Special board
Figure 4 Test of clamping stability of net frame
QB/T 27C1~2005
5.To test the holding force of the spring clamp type net frame, place the net frame correctly on the special table (the technical conditions of the left-hand table of each variety are consistent), and apply 290N force at the center of the large clamp. The sensory test is to see if it is consistent with the plate (see Figure 5). It should meet the requirements of 4.4.2. 240 N Figure 5 Spring clamp holding force test 5.8 The external strength of the net and net frame should be verified by sensory test, and the requirements of 4.2.1, 4.2.3, 4.2.4, 4.2.5, 4.3, 4.4.3, 4.4.4, and 4.5 should be met. 6 Inspection rules 6.1 Delivery inspection 6.1.1 Standard batch products! Before use, it should be inspected by the quality inspection department of the manufacturer: it must comply with this standard and be accompanied by a road certificate and price inspection certificate.
6.1.2 Acceptance inspection sampling plan is in accordance with GB/T2828.12003 special inspection requirements 93. Only one sampling plan is implemented, and the acceptance quality limit (AQL) is specified. Samples are determined as follows. Best quality products: 4. Best quality products: 6.5.
6.1.3 Acceptance inspection items, see Table 2.
Table 2 Acceptance inspection items
Network length, two-frame
column length or side length, thickness of the light, board length, light plate length, maximum installation length, frame body or length, thickness of the plywood, network separation, network teacher welcome point, filter length, network side width, network appearance
4.2.1. 4.2.3, 4.2.4, 4.2.5.
4. 3, 4. 4. 3. 4.4. 4, 4. 5www.bzxz.net
The inspection is carried out according to the inspection method
6.2 Type inspection
6.2.1 Type inspection shall be carried out every six months. Type inspection shall also be carried out in the following cases: when the design, process and material are changed, which may affect the product quality; when there is a major adjustment with the previous type inspection; when the production is carried out for more than three months; when the quality inspection is required or when the quality supervisor proposes a small type inspection. QB/T2701-2005
6.2.2 Type inspection G/T2829-2002, the sample method of judging the half 1, judging the array (0.1>) shall be carried out; its inspection items, inspection methods, RQL, sample size n shall comply with the provisions of Table 3 Table 3 Type inspection items
Type of net
Fire resistance of net frame
Light resistance
Marking, packaging, transportation, storage
7. 1 Marking
Test method
Products must be printed with trademarks, and the packaging must be accompanied by product name, number card, manufacturer name, address, and production standard number. 7.2 Packaging
7.2.1 Inner packaging
The packaging must be an independent unit, and the packaging must have product quality certificates. 7.2.2 Outer packaging
Each packaging carton must be printed with product, manufacturer name, address, factory date, type (or item number), quantity, volume, quality, "prevent full", "handle with caution" and other signs. 7.3 Transportation
During transportation, please handle with care and do not overweight. Do not overweight. 4 Storage
The products should be placed in a well-ventilated environment, free from pressure, moisture, heat and chemical pollution. Under this condition, the quality of the products is guaranteed for two years, and the qualified products are guaranteed for one year.
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