Jan 19,2021
How to determine the specifications and selection of experimental instruments
The experimental instrument configuration is to determine the specifications and selection of laboratory furniture on the basis of laboratory planning and design. Laboratory furniture is a new industry subdivided from the furniture industry, which tends to be standardized and specialized in the process of development. The experimental instrument configuration mainly includes layout, structure size, desktop selection, fume hood selection, experimental cabinet selection, safety facilities, etc.
experimental instrumentConfiguration is to determine the specifications and selection of laboratory furniture on the basis of laboratory planning and design. Laboratory furniture is a new industry subdivided from the furniture industry, which tends to be standardized and specialized in the process of development. The experimental instrument configuration mainly includes layout, structure size, desktop selection, fume hood selection, experimental cabinet selection, safety facilities, etc.
experimental instrumentThe layout of the test bench focuses on safety and convenience, and there are several common modes:
(1) The island type is a common pattern. Commonly used in large space, rectangular indoor form. this pattern is characterized by a smooth flow of people;
(2) Peninsula type This is also a typical application mode, suitable for long and narrow rooms;
(3) L-type is suitable for relatively narrow rooms;
(4) U-shaped and I-shaped (I. e., side test bench) layouts are also commonly used.
experimental instrumentStructure size
experimental instrumentThe structure is divided into all-wood structure, steel and wood structure and all-steel structure. The laboratory can choose different types of test benches according to the specific situation.
The size of laboratory furniture is directly related to convenience.
The height of the sitting table is generally between 750-850 MML, and 900mm can be considered for the high proportion of male experimenters.
The height of the station table is between 850-920mm, and the height of the high-temperature greenhouse table is between 450-600mm;
Generally, the length of the workbench should be considered as 1200mm per person (not less than 1000mm), while the organic chemistry test bench should be considered longer, which can be 1400~1600mm;
Reagent rack height 1200~1650mm, cabinet height up to 1800~2000mm;
The depth of the workbench is generally 750mm, and the depth of the high-temperature greenhouse workbench is generally between 850-900mm.
Currently, use more desktopexperimental instrumentThe materials are as follows:
(1) Epoxy resin: mainly reinforced epoxy resin, the internal and external materials are the same, it can be repaired when damaged, acid and alkali resistance, impact resistance, high temperature resistance (about 800 ℃), and the cost is relatively high.
(2) Corrosion-resistant solid physiochemical board: multi-layer sandwich paper is used, soaked in special phenol solution, and then formed by high-pressure thermosetting effect, and the surface is treated with special corrosion resistance. It has the characteristics of acid and alkali resistance, impact resistance and heat resistance, and is economical and durable.
(3) thousand board: composition of 70 wood fiber, 30 melamine resin. Melamine by double electron beam scanning technology attached to the surface, high temperature and high pressure molding, high temperature resistance, corrosion resistance of general.
(4) Corrosion-resistant physical and chemical veneer: It is made of kraft paper, white paper, and special surface paper impregnated with special composition phenolic resin. It is acid and alkali resistant, impact resistant, and heat resistant, but it must be used in conjunction with the substrate.