This standard specifies the product classification, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of rectangular flat trowels. This standard applies to No. 202 rectangular flat trowels specified in QB/T 2212.1-1996 "Terms of Construction Tools (Bricks and Tiles)". QB/T 2212.4-1996 Construction Tools (Bricks and Tiles) Rectangular Flat Trowels QB/T2212.4-1996 Standard download decompression password: www.bzxz.net

QB/T2212.4--1996
This standard is revised on the basis of the former professional standards of the Ministry of Light Industry ZBJ47001--1985 "Terms of Construction (Masonry) Tools", ZBJ47002--1985 "General Technical Conditions of Construction (Masonry) Tools", and ZBJ47003-1985 "Inspection Rules, Marking, Packaging and Transportation of Construction (Masonry) Tools", and converted into light industry standards. In the overall structure of the standard, the terminology of construction tools, general technical conditions and their product standards are retained, and the original ZBJ47003-1985 "Inspection Rules, Marking, Packaging and Transportation of Construction (Masonry) Tools" is cancelled, and some of its relevant provisions are merged into the general technical conditions. The product standards are retained according to the numbers in the terms. A product standard for "diamond masonry shovel" is added. This standard changes the word "brick" in the brackets of the original name to "brick type", and puts it behind the standard name "construction tools", so that the hand tools used in construction work are more standardized, and a clear limitation is made in the scope of application. This standard is a supporting standard, and the terminology and general technical conditions are based on it. The technical content in the original standard that has been proven to be suitable for my country's situation in practice is retained. The main dimensions in the product standard have been optimized, several specifications have been added, and the limit deviation has been indicated. This standard has been modified and improved for some quality indicators.
From the date of implementation of this standard, ZBJ47001~47003-1985 will be abolished at the same time. This standard is proposed by the Quality Standards Department of China Light Industry Association. This standard is under the jurisdiction of the National Tool Hardware Standardization Center. The drafting units of this standard are: Shanghai Tool Industry Research Institute, Shijiazhuang Industrial and Agricultural Machinery Factory, Dalian House Equipment Tool General Factory, Shanghai Fengxian Tool Sanguang, etc.
The main drafters of this standard are: Cheng Yongfeng, Zuo Zhenjiang, Tian Limin, Qin Delin, Wang Chende. This standard is entrusted to the National Tool Hardware Standardization Center for interpretation. 593
Light Industry Standard of the People's Republic of China
Construction Tools (Brick and Tile Type)
Rectangular Flat Trowel
QB/T 2212.4—1996
This standard specifies the product classification, technical requirements, test methods, inspection rules, and packaging, marking, transportation, and storage of rectangular flat trowels. This standard applies to No. 202 rectangular flat trowel specified in QB/T2212.1—1996 "Terms of Construction Tools (Brick and Tile Type)". 2 Referenced 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 will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. QB/T2212.1—1996 Terminology of construction tools (bricks and tiles) QB/T2212.2—1996 General technical conditions for construction tools (bricks and tiles) 3 Product classification
3.1 Type
The type of rectangular flat trowel is shown in Figure 1. CC
3.2 Main dimensions
The main dimensions of the long flat trowel shall be as specified in Table 1. Approved by China Light Industry Association on March 22, 1996
Implementation on December 1, 1996
Length of flat trowel L
210, 220, 225
235, 240
260, 265
Limit deviation
QB/T 2212.4—1996
Table 1 Main dimensions
Smooth trowel width B
85,90,95
85,90,95,100
90,95,100,105
100,105,110
100,105,110,115
100,110,115120www.bzxz.net
Note: Special types and other dimensions are not subject to the restrictions of this table. 4 Technical requirements
Limit deviation
The technical requirements for rectangular flat trowels shall comply with the provisions of Chapter 4 of QB/T2212.2—1996. 5 Test methods
5.1 Dimension inspection
Measure with universal measuring tools.
5.2 Inspection of other items
According to the provisions of Chapter 5 of QB/T2212.2-1996. 6 Inspection rules
According to the provisions of Chapter 6 of QB/T2212.2-1996. 7 Packaging, marking, transportation, storage
According to the provisions of Chapter 7 of QB/T2212.2-1996. mm
Thickness of flat board
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