What are the high-precision analytical balances?

Laboratory furniture is an indispensable part of the laboratory, and many people can't distinguish laboratory furniture from laboratory instruments. Today, Bian Xiao will introduce laboratory furniture and laboratory equipment to you.

I. Experimental platform

Experimental platform is the platform for operators to complete experiments in the laboratory. According to the structural form, the experimental platform is divided into fixed experimental platform and combined experimental platform.

There are many forms of fixed experimental platform, which is still widely used in China. The common countertops and brick bearings of reinforced concrete structures are wooden utensils cabinets under the stage, and the countertops are made of white tiles, terrazzo, marble or natural granite. This kind of laboratory is durable, high temperature resistant and stable, and is often used in sky platforms, high temperature furnaces, photometric instruments and so on.

Combined experimental platform: according to its own structural form, it is divided into several independent parts, which are made separately and then combined together.

According to the layout form, the experimental platform is divided into linear type, L type, peninsula type and island type.

1, the serial experimental platform is suitable for small or large laboratories.

2. The L-shaped experimental platform is arranged in parallel with two adjacent walls of the laboratory, and a maintenance channel is left.

3. The central experimental platform can be island-shaped, which is convenient for staff to move and can quickly approach emergency equipment or exits. When there are clear exits at both sides or ends of the laboratory, a peninsula-shaped experimental platform can be used.

The experimental platform can be divided into all-steel experimental platform, steel-wood experimental platform, all-wood experimental platform and PP experimental platform according to materials.

Desktop table: ① wooden table, ② cement stone table, ③ reinforced concrete table, ④ steel table, ⑤ synthetic resin table, ⑧ thin wood physical and chemical board table, ⑨ integral wood physical and chemical board table, ⑨ advanced decorative fire board table, and ⑩ TREASAP (Si Qian board).

The side table of the experimental platform is equipped with a corner table, which makes it play its greatest role in a limited space. The combination with the hanging cabinet not only fully embodies the unity of the laboratory, but also fully increases its practicability. Steel-wood structure side test bench, multifunctional combination price, can not only make full use of space, but also use its own structure to support the laboratory hanging cabinet.

Second, the laboratory fume hood

In the chemical laboratory, various toxic gases, odors, moisture, flammable, explosive and corrosive substances will be produced during the experimental operation. In order to protect the safety of users and prevent pollutants from spreading to the laboratory, fume hoods should be used near pollution sources.

Third, laboratory lockers.

Medicine cabinet, sample cabinet, dangerous goods storage cabinet, glassware drying storage cabinet, locker, gas cylinder cabinet.

Fourth, clean the cupboard.

Clean cabinet, also known as clean workbench, is widely used in biology, medicine, health, electronics, precision instruments, meters and other industries. Can provide a sterile, dust-free clean operating environment.

Five, the sky platform

Most of the balances commonly used in the laboratory are desktop. Analytical balance can be set on a stable and fixed shockproof workbench, and the platform of high-precision mechanical analytical balance requires high shockproof.

Six, biological safety cabinet

Biosafety cabinets are divided into three levels: the first level is equivalent to the function of detoxification cabinets with filters to protect operators and the environment. The second level protects the operator, environment and samples at the same time, and is suitable for biosafety 1/2/3 samples. The third stage protects the operator, the environment and the sample at the same time. The operating environment is completely isolated from the external environment, with a glove box and closed operation, which is suitable for the experimental operation of high-risk samples.

Seven, experimental platform

According to the needs of the experiment, the workbench can be made of steel or wood. In order to facilitate experiments and save space, round stools are usually used. If the round stool is made of steel, the height can be adjusted, and an armchair with pulleys can be used in the instrument laboratory for easy operation.

Eight, smoke exhaust hood

The laboratory basically eliminated the old smoke exhaust hood that can only rotate horizontally and translate vertically, and used the universal smoke exhaust hood that can rotate freely. There are three kinds of universal smoke exhaust hoods, namely, ceiling type, wall type and desktop type.

Nine, drip rack

After cleaning, test tubes and other experimental instruments can be dried on the drip rack and stored.

X. Sinks and faucets

In addition to meeting the special requirements of laboratory materials such as acid resistance, alkali resistance and corrosion resistance, laboratory sinks should also be easy to clean, install and replace. The experimental water tank is formed in one piece, that is, it is pressed with the test bench panel at one time during production, which is characterized by seamless and easy cleaning. Another one is assembled together after leaving the experimental platform, and there is a gap, and the waste liquid can easily penetrate into the gap. Made of PP plastic, ceramics, cement and epoxy resin.

According to the special needs of the laboratory, it should be equipped with gas taps and faucets, which are durable and easy to connect gas pipes and water pipes. Therefore, the faucet mouth is different from the traditional faucet, such as the prototype faucet, and it is anti-slip. There are several kinds of faucets, such as single connection (or single port), double connection, triple connection and quadruple connection, including steel and copper.

XI。 washing equipment

When an accident occurs during the experiment and the experimenter is splashed with chemicals, the laboratory shower equipment should be used for preliminary emergency treatment to protect the safety of the experimenter.

Twelve, laboratory special equipment car

The special container truck for laboratory improves the safety and convenience of goods storage and retrieval, and also makes the experimental operation more convenient and efficient.

Thirteen. Safety station

The laboratory should be equipped with safety stations and emergency equipment as required. Such as eye washer, shower, fire extinguisher, protective gloves, protective clothing, adsorption materials, etc. The best place to set up a safety station is the main entrance of the laboratory, which is convenient for staff to use and maintain. When necessary, consider setting up multiple safety stations for staff to use.

Fourteen, special instrument workbench

The workbench for placing instruments and equipment generally requires stability, firmness, bearing capacity or heat insulation. Worktables on the market are all made of steel, including high-grade decorative boards and stainless steel countertops, with loads ranging from 300kg, 500kg and 800kg, and can be selected as long as they meet the functional requirements.

Fifteen, laboratory identification

Tips, signs or instructions for management, guidance, warning or prohibition of laboratory functions or areas shall comply with the provisions of GB2894-2008 "Safety Signs and Guidelines for Their Use". Mainly includes:

1. Function or area identification. It is easy to manage by separating the office from the testing area and service functional area of each laboratory.

2. Laboratory floor identification, with laboratory area management and guidance functions.

3. room identification.

4. Biological hazard identification. Biosafety signs used by biological protection laboratories above Grade II must be marked with biological hazard signs in obvious positions of the crowd.

5. Warning signals of radioactive substances. Places where radioactive substances are produced, used, stored and transported, means of transport, packaging containers, equipment and devices containing radioactive substances must use radioactive warning signs.

6. Warning signs of danger and toxicity.

7. Safety warning signs.

The above is a brief introduction of laboratory furniture and laboratory equipment. Please pay attention to us for more laboratory related information.