First, the level of toxic hazard level A poison: Benzene, nickel carbonyl, mercury and its compounds, arsenic and its compounds (other than non-carcinogenic inorganic arsenides), manganese and its compounds, chromates, dichromates, bituminous tobacco, The second type of poison: Chlorine, acrylonitrile, hydrogen sulfide, styrene, carbon tetrachloride, carbon disulfide, formaldehyde, lead and its compounds, cadmium and its compounds, carbon monoxide, aniline, nickel metal, acrylamide, furfural, chloroform, hydrogen cyanide, paraphenylene Diphenols, vanadium pentoxide, hydrazine hydrate Three poisons: Toluene, xylene, methanol, nitric acid, sulfuric acid, hydrochloric acid, dimethylformamide, phenol, cresol, nitrogen oxides, trichloroethylene, sulfur dioxide, pyridine, monoethanolamine, sodium thiocyanate, acetonitrile, ammonium nitrate, two Ethanolamine, sodium nitrite, perchloric acid, methylamine, crotonaldehyde (2 -crotonaldehyde ) , formic acid, isobutanol, triphenylphosphine, hydrofluoric acid, ethylenediamine, tail gas Four types of poisons: Solvent gasoline, acetone, sodium hydroxide, ammonia, polypropylene, vinyl acetate, 2- butanone, sulfur, cyclohexane, butylene, butadiene, propionaldehyde, acetic acid, acetaldehyde, carbon dioxide, butanol, B Diol, naphtha, butyraldehyde, isobutyraldehyde, methyl tert-butyl ether, liquefied petroleum gas ( propane, propylene, butane, butylene, etc. ) , ethyl acetate, isopropanol, hexane, isoprene Alkane, tetrahydrofuran, n-heptane, titanium tetrachloride, ethylbenzene Second, the introduction of protective clothing level The American Fire Protection Association ( NFPA ) NFPA1991 standard classifies protective equipment into four levels. 1 , A -level protection: The highest level of breathing, skin and eye protection available. Provide breathing gas (SCBA or gas pipeline ) ; Fully enclosed chemical protective clothing ; Inner and outer layers of chemical protective gloves; Chemical protective boots ; A-class heavy chemical protective clothing The following conditions must be worn: Measured ( or possibly ) the presence of high concentrations of steam, gases, and dust; it is highly likely to be accidentally splashed, immersed or exposed to steam, gas, and dust, causing damage to the skin or absorption through the skin; There may be substances that are highly injurious to the skin, and it is impossible to avoid contact with the skin at the same time; the operating environment is poorly ventilated and requires Class A protection. 2 , B level protection Class B protection is similar to class A for respiratory protection, less skin protection, and minimum protection level when handling dangerous goods. Provide breathing gas (SCBA or gas pipeline ) : Anti-chemical, splash-proof clothing; inner and outer layers of chemical protective gloves; chemical protective boots; hard hat. The following conditions must be worn: IDLH environment ( inhalation only ) does not cause serious skin damage, or does not meet the conditions for making filters; substances with known contact properties and concentrations require high respiratory protection, low skin protection, low oxygen concentration At 19.5% ; gas that cannot be completely detected by the instrument, but is harmless to the skin or not absorbed through the skin. 3 , Class C protection Full-facepiece air-filter respirator ; chemical protective clothing; inner and outer layers of chemical protective gloves; chemical protective boots; Full face mask gas mask Wear Class C protective clothing in the following situations : The types and concentrations of contaminants in the air are known, and the filter can effectively filter; oxygen is not lower than 19.5% ; lower than the IDLH gas environment. Class D protection No respiratory protection, minimum skin protection: Coveralls; chemical protective gloves; chemical protective boots; safety glasses or goggles; Wear the following conditions: There are no known harmful gases in the atmosphere; there is no liquid splashing, immersion in liquids, or exposure to any harmful chemicals. The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.
PVC coated stone gabion boxes is a cage made of hexagonal wire mesh (hexagonal net) woven by one-way twisting and twisting metal wire for two weeks. Its thickness is 0.15-0.5m (including 0.5m), also known as stone cage and cushion. The lattice mat is divided into several cells by partitions. In order to strengthen the strength of the lattice mat structure, all sides of the face plate are made of steel wire with larger diameter.
pvc coated gabion box
gabion box
Long
mm
1000-6000
High
mm
500-3000
Wide
mm
500-3000
Surface treatment
pvc
Plastic coated layer
1-2mm
galvanized
g/m
40-60g
galfan
g/m
More than 200 g
accessories
Binding wire
diameter
2.2-3.0mm
tool
number
1 set
instructions
number
1 this
Material:
iron wire or pvc coated wire
GABIONS sizes:
2m x 1m x 1m, 3m x 1m x 1m, 4m x 1m x 1m, 2m x 1m x 0.5m, 4m x 1m x 0.5m. Custom orders savailable.
Finish can be hot-dipped galvanized, galvanized aluminum alloy or PVC coated, etc.
Gabion boxes applications:
Pvc Gabion Basket,Pvc Coated Gabion Mesh,Gabion Wall Baskets,Pvc Coated Gabion Cage Anping shengsen metal wire mesh products co,. ltd , https://www.apshengsen.com
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There are two kinds of shield mats: metal coating and PVC/PE coating. The diameter of the metal wire used varies according to the size of the hexagon. The production process is weaving nets, shearing, latching, binding and then making stone cages and pads. Stone cages and pads are supplied in a folding state.
Control and guide of water or flood
Flood bank or guiding bank
Preventing of rock breaking
Water and soil protection
Bridge protection
Strengthening structure of soil
Protection engineering of seaside area.
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