This standard specifies the classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of polycarbonate (PC) hollow sheets. This standard applies to polycarbonate (PC) hollow sheets that are made of polycarbonate (PC) resin as the main raw material, added with various additives, and extruded. JG/T 116-1999 Polycarbonate (PC) Hollow Sheet JG/T116-1999 Standard download decompression password: www.bzxz.net

JG/T116—1999
This standard adopts the Japanese standard JIS K6735-93 "Polycarbonate Sheet" in terms of technical content. In terms of test methods, it adopts the international standards ISO527-1992 "Determination of Tensile Properties of Plastics", ISO178-1975 "Determination of Flexural Properties of Plastics", American standard ASTMD696-79 "Standard Test Method for Linear Expansion Coefficient of Plastics", Japanese standard JIS K7211-84 "General Rules for Drop Weight Impact Test Method for Rigid PVC Plastics" and German standard DIN4102-81 Part 1. This standard was proposed by the Standard and Quota Research Institute of the Ministry of Construction. This standard is under the jurisdiction of the China Building Standard Design Institute, the technical unit responsible for building products and equipment standards of the Ministry of Construction. This standard was drafted by the Hebei Provincial Construction Materials and Equipment Development and Promotion Center and Shijiazhuang Alda Sun Panel Co., Ltd. The participating units of this standard are: Zhongshan New Chemical Material Factory and Shanghai Huili-Tage Panel Co., Ltd. The main drafters of this standard are Feng Xiaofeng, Zhang Guang, Li Tongze, Yang Hua, Lu Qiuhua, Yang Yurong and Zhao Zhanming. 731
1 Scope
Construction Industry Standard of the People's Republic of China Polycarbonate (PC) Hollow Sheets
Muitiwall polycarbonate sheetsJG/T 116—1999
This standard specifies the classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of polycarbonate (PC) hollow sheets. This standard applies to polycarbonate (PC) hollow sheets (hereinafter referred to as hollow sheets) made of polycarbonate (PC) resin as the main raw material, added with various additives and extruded.
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 will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 1036-19892
Determination method of coefficient of linear expansion of plastics
GB/T 1040—1992
GB/T 1634—1979
GB/T 2410---1980
GB/T 2411—-1980
GB/T 2680—1994
Test method for tensile properties of plastics
Test method for heat deformation temperature (abbreviated as heat deformation temperature) of plastics under bending loadTest method for light transmittance and haze of transparent plasticsTest method for Shore hardness of plastics
Determination of visible light transmittance, direct solar transmittance, total solar transmittance, ultraviolet transmittance and related window glass parameters for architectural glass
GB/T 2828-1987
Batch-by-batch inspection counting sampling procedure and sampling table (applicable to inspection of continuous batches) GB/T 8484—1987
Classification and test methods for thermal insulation performance of building exterior windows GB8624-1997 Classification method for combustion performance of building materials GB/T 9341—1988
Test method for bending performance of plastics
GB/T14153—1993 General rules for drop weight impact test method for rigid plastics 3 Classification
3.1 Product classification
3.1.1 According to the product structure, it is divided into two types (see Figure 1) a) Double-layer board: The hollow board consists of two layers, code 2; b) Three-layer board: The hollow board consists of three layers, code 3. Approved by the Ministry of Construction of the People's Republic of China on January 5, 2000, and implemented on March 1, 2000
JG/T116—1999
(a) Double-layer hollow board
(b) Three-layer hollow board
Figure 1 Structure of hollow board
3.1.2 According to whether it contains an anti-ultraviolet co-extruded layer, it is divided into two types: a) Anti-ultraviolet type (UV type) hollow board with UV co-extruded layer, code F; b) Ordinary hollow board without UV co-extruded layer, code omitted. 3.2 Product specifications and colors
3.2.1 See Table 1 for the specifications, dimensions, structural dimensions, unit weight and deviations of hollow boards. Table 1 Specifications, dimensions, unit weight and deviations of hollow boards Thickness/mm
Basic dimensions
Length/mm
Basic dimensions
Width/mm
Basic dimensions
Note: Hollow boards of other specifications and structural dimensions can be determined according to user requirements. Deviation
Thickness of outer layer Thickness of middle layer
3.2.2 The color of hollow boards is generally colorless and transparent, and other colors are agreed upon by both the supply and demand parties. 3.3 Product model
3.3.1 Expression method
The expression method of hollow board product model is as follows: KB·△
Middle layer
Thickness of vertical reinforcement
Weight per square meter
Nominal weight
Main parameter code (board thickness mm/number of layers)
Characteristic code (including UV code)
Name code (Chinese pinyin abbreviation of hollow board) 3.3.2 Model example
The model of UV-proof double-layer hollow board with a board thickness of 10mm is: KB·F10/2
4 Requirements
4.1 The technical indicators of hollow boards shall comply with the requirements of this standard and shall be manufactured according to the drawings and technical documents approved by the prescribed procedures. 4.2 Appearance qualitybZxz.net
≥-5%
JG/T 116—1999
4.2.1 The surface of the hollow board should be smooth and flat, and no defects such as bubbles, cracks, obvious marks, deformation, depressions and color differences that affect the use are allowed.
4.2.2 The vertical ribs of the hollow board should be evenly spaced and without obvious tilt. 4.3 Dimensional deviation
The dimensional deviation of the hollow board shall comply with the provisions of Table 1. 4.4 Cold bending radius
The minimum cold bending radius of the hollow board is 175 times the thickness of the board. After bending according to the minimum bending radius, there shall be no cracks on the board surface. 4.5 Physical and mechanical properties
The physical and mechanical properties of the hollow board are shown in Table 2.
Table 2 Physical and mechanical properties of hollow board
Heat transfer coefficient
Light transmittance
Tensile yield strength
Bending strength
Shore hardness
Heat deformation temperature
Linear expansion coefficient
Drop hammer impact, number of failures
Combustion performance
4 (double layer)
6 (double layer)
8 (double layer)
10 (double layer)
10 (triple layer)
Double layer colorless and transparent
Triple layer colorless and transparent
Ultraviolet transmittance (UV) type
Note: Items 1 to 5 are tested by injection molding samples according to national standards. 5 Test method
5.1 Appearance inspection
W/(m2- K)
Appearance quality inspection is carried out in a room with sufficient natural light, 300~400mm away from the product, by visual inspection. 5.2 Dimension measurement
≥125
≤6.5×10-5
5.2.1 The length of the plate is measured along the direction of the vertical reinforcement with a measuring tool with an accuracy of 1mm, and the measuring position is randomly selected at three locations within 100mm from both ends. The width of the plate is measured perpendicular to the vertical reinforcement with a measuring tool with an accuracy of 1mm, and the measuring position is randomly selected at three locations within 100mtm from both ends. 5.2.2 The thickness of the plate is measured with a measuring tool with an accuracy of 0.02mm, and the measuring position is between the two reinforcements, and a total of five measurements are made. 733
JG/T 116—1999
5.2.3 The layer thickness and rib thickness are measured with a micrometer with a graduation value of 0.01mm, three places each. 5.3 Cold bending performance test
Under ambient temperature conditions, a hollow plate with a width of 0.5m and a length of 2m is cold bent along the rib direction on a gauge with a radius of 175 times the plate thickness. The hollow plate shall not have cracks.
5.4 Unit area weight
Take a hollow plate of not less than 1m2 for measurement and calculate the weight per unit area. 5.5 Physical and mechanical performance test
5.5.1 Determination of tensile yield strength
The determination of tensile yield strength shall be carried out in accordance with the provisions of GB/T1040. 5.5.2 Determination of flexural strength
The determination of flexural strength shall be carried out in accordance with the provisions of GB/T9341. 5.5.3 Determination of Durometer Hardness
The determination of Shore Hardness shall be carried out in accordance with the provisions of GB/T2411. 5.5.4 Determination of Heat Deformation Temperature
The determination of heat deformation temperature shall be carried out in accordance with the provisions of GB/T1634. 5.5.5 Determination of Linear Expansion Coefficient
The determination of linear expansion coefficient shall be carried out in accordance with the provisions of GB/T1036. 5.5.6 Drop hammer impact test
The drop hammer impact test is carried out according to the A method specified in GB/T14153. The drop hammer mass is 1kg, the impact height is 1000mm, the hammer head is hemispherical, and the radius is 30mm
5.5.7 Combustion performance determination
The combustion performance determination is carried out according to the provisions of GB8624. 5.5.8 Determination of heat transfer coefficient
The heat transfer coefficient determination is carried out according to the provisions of GB/T8484. 5.5.9 Determination of light transmittance
The light transmittance determination is carried out according to the provisions of GB/T2410. 5.5.10 Determination of ultraviolet transmittance
The ultraviolet transmittance determination is carried out according to the provisions of GB/T2680. 6 Inspection rules
6.1 Product inspection is divided into factory inspection and type inspection. 6.2 Hollow boards must be inspected and qualified by the enterprise's quality inspection department and a certificate of conformity must be issued before they can leave the factory. 6.3 Factory inspection
6.3.1 Factory inspection shall be valid only within the validity period of the qualified type inspection. 6.3.2 Inspection items: Factory inspection items are 4.2, 4.3, 4.4 and 4.5 of this standard. 6.3.3 Batching and sampling
6.3.3.1 Batching
Hollow boards of the same specifications produced under the same batch of raw materials, the same formula and the same process conditions are considered a batch. For more than 500 sheets, each 500 sheets shall be a batch.
6.3.3.2 Sampling plan determination rules
Perform according to GB/T2828, adopt general inspection level I, normal inspection one sampling plan, qualified quality level (AQL) is 6.5, qualified determination number A. and unqualified determination number R are shown in Table 3.731
Batch range
N (sheets)
51～~150
151~280
281~500
6.4 Type inspection
JG/T1 16—1999
Table 3 Sampling plan and judgment rules
Sample size
6.4.1 Type inspection should be carried out in any of the following situations: a) Trial type identification of new products or old products transferred to factory production; qualified judgment number
b) After formal production, when there are major changes in structure, materials, and processes that may affect product performance; c) Once every two years in normal production; d) When the product is resumed after being discontinued for half a year; e) When there is a significant difference between the factory inspection results and the last type inspection; f) When the national quality supervision agency proposes a type inspection requirement. 6.4.2 Type inspection items
Type inspection items are all the contents of the technical requirements of this standard. Unqualified judgment number
6.4.3 Sampling plan and judgment rules: Randomly select 8 hollow boards from the products that have passed the factory inspection. The factory inspection items shall be determined according to the provisions of Table 3. If one of the physical and mechanical properties is unqualified, double samples shall be drawn for re-inspection. If it is still unqualified, the batch shall be judged as unqualified.
7 Marking, packaging, transportation and storage
7.1 Marking
Product markings shall be affixed or printed on obvious parts of the hollow board, and the contents shall include: a) manufacturer name and trademark;
b) product name;
c) product specification model and standard number;
d) anti-ultraviolet surface mark;
e) factory date or number.
7.2 Packaging
The surface of the hollow board shall be protected by a film and added with appropriate outer packaging. The outer packaging shall indicate the product name, manufacturer name and "sunscreen, rainproof, impact-proof" and other marks.
7.3 Transportation
Hollow boards should be kept clean during transportation and should not come into contact with corrosive media. Handle with care during transportation to ensure that the product is intact. 7.4 Storage
Hollow boards should be stored in a ventilated and dry room and stacked flat. During storage, they must not be placed together with corrosive media and should be kept away from heat sources. 735
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.