Fire extinguishers are the most common fire-fighting equipment, so we need to be familiar with what items and standards need to be checked for fire extinguishers to ensure that the fire extinguishers can be used normally. What items should be checked for fire extinguishers? Fire extinguishers should comply with market access regulations, and should have factory certificates and related certificates. The nameplate, production date and maintenance date of the fire extinguisher should be compl

Building exterior wall insulation materials have brought a series of problems while reducing building energy consumption. Among them, the most important fire hazard is building exterior wall insulation materials, and organic insulation materials are easy to burn. The building exterior wall insulation system using organic thermal insulation materials can easily cause the fire to spread rapidly to the entire building in case of fire. That needs to detect the burning behaviour of building

The burning chamber of the building material single burning item test equipment is designed according to the standard requirements of GB/T 20284-2006 "Single burning item test for building materials and products". It is a test device used to determine the fire reactivity of building materials or products (excluding floor coverings and products specified in EC Decision 2000/147/EC) in the single combustion test (SBI).The indoor height of the building material single burning item test co

In recent years, fire accidents involving confined spaces such as hotel rooms, student dormitories, shopping malls, private rooms for singing and dancing and entertainment have occurred frequently, causing serious casualties and major property losses. For this reason, the fire protection code for building design is constantly revised. For the fire safety of confined spaces, the experimental research is carried out based on ISO9705 room fire, and the test data of cone calorimeter is used as

New year new life. After spending the happy Spring Festival holiday, on February 6, 2023, the employees of Zonsky Instruments returned to their big families one after another and returned to their familiar jobs. The joy and excitement of the Spring Festival is still lingering in our heart, but the new journey has already begun, and we are starting work! Spring is a season of infinite vitality, rain moistens everything and makes dreams come true. At 8:18 in the morning, all employe

The flame retardant grade of plastics decreases step by step from V-0, V-1, V-2 to HB. HB UL94 and CSA C22 2NO 017 are the lowest flame retardant ratings in the standard. The U.S. American flame retardant material standard is ANSI/UL-94-1985 standard UL94 test has five kinds:1. Horizontal burning test of 94HB class2. 94V-0 94V-1 94V-2 level vertical burning test3.94 5-V level vertical burning test4. Flame spread index test with radiant panels5. Vertical burning test of&n