What material is used for the laboratory bench in the clean room, and what material is generally use

Personal suggestion: There are three kinds of laboratory bench materials for reference in the clean laboratory: steel and wood test bench, alloy wood test bench, and all-steel test bench.

There are mainly epoxy resin boards, solid core physical and chemical boards, ceramic plates, marble countertops, stainless steel countertops, etc.

The countertop is divided into chemistry experiment countertop, physics experiment countertop, and biological laboratory countertop.

1. Chemistry laboratory bench table.

Chemical laboratory countertops are usually phenolic resin composite veneer countertops, phenolic resin solid board countertops, epoxy resin countertops, and ceramic countertops;

Composite veneer countertops:

The material is a special board for chemical experiments with 1mm thick phenolic resin, a domestic high-quality MDF material for the substrate, a phenolic resin ordinary fireproof board pasted on the bottom surface, and a thick PVC material edge banding is used around the periphery; The composite thickness of the table is 40mm;

Solid board countertops:

The material is a thick phenolic resin board for chemical experiments, and the total thickness is 100 after edging; Perimeter chamfer r10mm; The high temperature resistance does not exceed 135.

Epoxy countertops:

The thickness of the material is 13mm, 20mm, 25mm for selection;

Features: a. 24-hour strong acid and alkali corrosion resistance; b. It has strong wear resistance, impact resistance, pollution resistance, and no bending; c. High temperature resistance up to 600;

2. Benchtop for physics:

The physical laboratory countertop is usually phenolic resin composite veneer countertop and natural granite countertop;

Composite veneer countertop, material: 1mm thick phenolic resin physical experiment special board, with high temperature resistance, wear resistance, scratch resistance and other characteristics. The substrate is made of high-quality MDF material, and the periphery is edged with thick PVC material; The composite thickness of the table is 40mm;

Solid board table, material: Thick phenolic resin board is used as a special board for physical experiments, which has the characteristics of high temperature resistance, wear resistance, scratch resistance, and anti-static. The total thickness after edging is; Perimeter chamfer r10mm;

Features: a. Strong wear resistance, impact resistance, pollution resistance, high temperature resistance, anti-static, no bending;

b. The maximum load is 300 kg square meters;

c. Temperature resistance can be used in -50 +40 environment;

Natural granite countertops:

Thickness: 50mm for high temperature table; 50mm for the sky platform;

Features: strong mechanical properties and heat resistance;

The maximum load capacity is 500 kg square meters;

Disadvantages: there is radiation, which is harmful to human health, (based on the test report);

3. Biological laboratory bench table:

Thick 316 stainless steel plate is selected, and the composite plate is lined with filling and sealing.

Features: 1. Resistant to organic solvents; 2. Inhibit the growth of bacteria and molds; 3. Anti-pollution and easy to clean;

Epoxy countertops:

The thickness of the material is 20mm, 25mm for selection;

Features: a. 24-hour strong acid and alkali corrosion resistance; b. It has strong wear resistance, impact resistance, pollution resistance, and no bending; c. High temperature resistance up to 600;

The building layout of the clean laboratory decoration is closely related to the purification air-conditioning system, and the purification air-conditioning system should not only obey the overall layout of the building, but also conform to the principle of the purification air-conditioning system, so as to give full play to the role of relevant functions. The designer of the purification air conditioner must not only understand the building layout to consider the layout of the system, but also put forward requirements for the building layout to conform to the principles of a clean laboratory. The following introduces the requirements of the clean laboratory decoration specifications.

1. The layout of the clean laboratory decoration.

The clean laboratory generally consists of three parts: clean area, quasi-clean area and auxiliary area. The layout of a clean laboratory can be in the following ways:

Outer corridor surrounding: The outer corridor can be windowed or windowless, which is used for visiting and placing some equipment, and some are equipped with on-duty heating in the outer corridor. Exterior windows must be double-sealed windows.

Inner corridor: The clean laboratory is located on the periphery, and the corridor is located on the inside, and the cleanliness level of this corridor is generally higher, even the same level as the clean laboratory.

Two-end type: the clean area is located on one side, and the quasi-clean and auxiliary rooms are set on the other side.

Core type: In order to save land and shorten the pipeline, the clean area can be the core, and the space of various auxiliary rooms and hidden pipes can be surrounded by the upper and lower left and right, which avoids the impact of the outdoor climate on the clean area, reduces the energy consumption of cold and heat, and is conducive to energy saving.

2. Common material selection requirements for clean laboratory decoration:

The ceiling of the laboratory is made of dust-proof, smooth and flame-resistant color steel plate, which is edged with grooved aluminum on both sides, and sealed with neutral porcelain white glass glue between the color steel plate and the color steel plate;

The special PVC floor adhesive for floor paving in the laboratory purification area has a fire rating of BL level, and the acid-proof, alkali-proof, anti-corrosion and wear-resistant grade meets the requirements of the national standard laboratory; The laboratory wall is made of dust-proof, smooth, flame-resistant, steel plate sandwich color steel plate wall fixed with 50x30 grooved aluminum as the groove, and the groove is fixed with steel nails and wooden blocks;

The ground and the wall, the wall and the wall, and the wall and the ceiling are all treated with aluminum alloy arcs with a radius of 50mm; The color steel plate and the color steel plate are sealed with neutral porcelain white glass glue to prevent the breeding of bacteria in the seams;

Cylindrical surface, yin and yang angle treatment: the male angle between the steel plate sandwich color steel plate partition is equipped with an aluminum alloy outer arc, between the partition and the partition, between the partition and the plate ceiling, and the yin angle between the partition and the ground seals the R50 aluminum alloy inner arc. Aluminum alloy top ball is installed at the intersection of the rounded corner line, and the disconnection of the door should be closed, and the intersection angle of the yang corner column and the ceiling;

Doors and windows: The laboratory is made of clean and sealed color steel plate doors, the door sleeve is made of 50mm wide and thick sand-light aluminum alloy, the door panel is 5mm tempered glass window, and the lower part is filled with color steel plate. Specifically, in accordance with Party A's requirements, it can be opened to 900x2000mm, 1500x2100, etc., and the laboratory adopts clean and sealed color steel windows

The 1500xx1000 security door is: 1200x2100 floor-to-ceiling glass door. The above is the standard assembly.

Cleanroom is an important part of the laboratory, in some occasions where experiments are often carried out, the cleanliness of the environment plays a very key role, even if the slight pollution will lead to deviations in the experimental results, so how to ensure the cleanliness of the laboratory has become very important.

The vast majority of bacteria in the air are 2 30 m in diameter, and the mold is 2 30 m in diameter, which is attached to the dust in the air, forming biological particles of a certain size and levitating, which directly affects the air environment of the laboratory. What we usually call class 100-100,000 is usually divided by the maximum concentration limit of greater than or equal to particle size in the air.

It can be seen that the clean laboratory has a strict division in the standard, and it should also play a role in isolation and protection for users, therefore, when purchasing purification equipment, it is necessary to choose a well-known company with quality assurance, Liaoning Hao clean equipment manufacturing, mainly serving the hospital operating room, the first room, and the laboratory department; Pharmaceutical workshop, dust-free electronic food workshop, as well as a variety of laboratory supporting purification products, to provide one-stop procurement of purification products, one-stop service.

It is to meet the requirements of laboratory biosafety.

According to the requirements of the General Requirements for Laboratories - Biosafety (GBL9489-2004) and the Technical Specifications for the Construction of Biosafety Laboratories (GB50346-2004), the cleanliness of BSL-3 and ABSL-3 laboratories, BSL-4 and ABSI-4 laboratories in semi-contaminated areas and contaminated areas should reach 10,000 to 100,000 levels. After the biosafety laboratory is built or after the HEPA filter is repaired or replaced, the cleanliness of the air in the semi-polluted area and the polluted area must be tested. The technical method of testing can be in accordance with the "Code for Construction and Acceptance of Clean Room" (JGJ?).

1-90). The frontier of the laboratory focuses only on the ** of the laboratory.

In accordance with the method specified in the "Code for Construction and Acceptance of Clean Room" (JGJ 71-90), the cleanliness test range of BSL-3 and ABSL-3 laboratories, BSL-4 and ABSL-4 laboratories in semi-polluted areas and polluted areas should be the number of dust particles greater than or equal to 0 5TAN in the air "352 000 particles m3 to 3 520 000 particles m3, and the number of dust particles greater than 2 930 particles m3 to 29 300 particles m3 of 5ptm.

: Laboratory frontier - only focus on the laboratory**, each ****** of the article on this site must indicate the source: laboratory frontier, do not cooperate once found at your own risk. Link to original article.