First, the definition of tables and chairs
Desk, desk and chair? And then what? Chair? As the name implies, it is a kind of desk and chair used by students in class, also called student desk and chair.
Second, the classification of tables and chairs.
By age: kindergarten desks and chairs, primary school desks and chairs, middle school students desks and chairs, college students desks and chairs;
According to the function: divided into fixed tables and chairs and lifting tables and chairs;
According to materials: wooden tables and chairs, plastic tables and chairs, steel tables and chairs.
Third, the standard of desks and chairs
"Functional dimensions of school desks and chairs" standard (GB/T? 3976-2002)? Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China.
Because desks and chairs are the basic equipment in educational institutions, they have an important impact on the health of children and adolescents.
Compared with the original standard, this standard mainly has the following changes in technical content:
1? The height range of various types of desks and chairs in primary and secondary schools has generally increased by 7.5cm, and the largest model with a standard height of 180.cm has been added, from the original nine models to 10 model. Undo GB? 7792- 1987 regulations on the use of original tables and chairs. The desktop height of each model is consistent with international standards, and the seat height is 20mm, which is low10 mm.
2? Size of desks and chairs in primary and secondary schools:
A) The desktop width (left and right direction) is changed from the original 550 mm ~ 600mm (for single use) and 1000 mm ~ 1200mm (for double use) to 600mm and 1200mm respectively.
B) The height of backrest and the clearance under the table have been increased, and the dimensions of some parts have been slightly adjusted. ? C) Enriched some regulations on distribution and use, and added Appendix A (suggested appendix).
What is the size of class chairs in primary and secondary schools? centimetre
What is the model of the desk and chair? Is the desktop high? Is the seating surface high? Standard height? What is the height range of students? Color sign
1? 76? 44? 180.0? 173~? blue
The second one? 73? 42? 172.5? 165~ 179? white
Number three? 70? 40? 165.0? 158~ 172? green
The fourth one? 67? 38? 157.5? 150~ 164? white
Number five? 64? 36? 150.0? 143~ 157? red
Number six? 6 1? 34? 142.5? 135~ 149? white
Number 7? 58? 32? 135.0? 128~ 142? yellow
Number eight? 55? 30? 127.5? 120~ 134? white
Number nine? 52? 29? 120.0? 1 13~ 127? purple
10 49? 27? 1 12.5? ~ 1 19? white
Note: 1. Standard height refers to the most representative height of all kinds of desks and chairs. For growing children and adolescents, the median of each high segment is often taken.
2. The height range of students is rounded to the nearest centimeter.
3. The color sign is the color of the sign.
Reference model of school preset tables and chairs
Study? School? Choice? Use? Fan? Wai? Select model
Tall? Medium? 1, 2, 3, 4? One or two models, no more than three.
Morning? Medium? 2 nd, 3 rd, 4 th, 5 th and 6 th? At least two models (at least three models in four years)
Small? Study? 4 th, 5 th, 6 th, 7 th, 8 th and 9 th 10? At least three models
Fourth, the quality requirements of desks and chairs
Requirements for plastic tables and chairs:
Raw materials should be raw materials: polyethylene or polypropylene.
There should be no burrs and sharp edges and corners on the inner and outer surfaces of the product and where children's fingers can reach.
Tables and chairs should be balanced on the ground, and the maximum deviation should not exceed 2mm.
The requirements specified in Q 1095 shall be met.
After the strength and durability test of tables and chairs, the joints are not allowed to loosen. Parts are not allowed to be split.
The stability test results of tables and chairs do not need to be overturned.
Environmental protection requirements: ISO: 1400 1-2004.
National compulsory safety certification (3C certification).
Verb (abbreviation of verb) buying advice
After reading the above introduction, you have basically understood how to choose desks and chairs.
1, it is best to choose a company with the following qualifications to buy tables and chairs:
Units that have passed the environmental protection certification (ISO 1400 1-2004).
Units that have passed the national compulsory safety certification (3C certification).
2, don't just look at the price and pictures, manufacturers do things according to their conscience, only buy the wrong ones, not the wrong ones. Some merchants use recycled materials or defective products to replace the original raw materials or use less raw materials for the same thing.
3. Try to choose a unit with good reputation and full qualifications to buy, such as Yangzhou Wahaha kindergarten toys.
4, buy tables and chairs, quality and safety is the first, and now parents' awareness is quite high.
When schools and educational institutions buy tables and chairs, the first consideration is the quality of the tables and chairs, and the quality is the first, then the style and price. After all, health is the capital of the revolution, and the health of students is the most important. The above contents are the standard sizes of desks and chairs that Bian Xiao introduced to you today. Want to know more, please continue to pay attention to Tuba rabbit decoration!
Tubatu Online provides you with "every decoration quotation, 1-4 local decoration companies, 3 sets of decoration design schemes" and the decoration pit avoidance strategy for free! Click this link:/Zhu Ye /zxbj-cszy.php? to8to _ from = SEO _ zhidao _ m _ jiare & amp； Wb, you can get it for free ~