GBT14907 Standard Indoor Steel Structure Fireproof Coating Performance Testing Scheme [Instrument List]

The GBT14907 standard stipulates various performance standards of steel structure fireproof coatings, and also includes various physical and chemical properties of coatings, such as drying time, initial drying crack resistance, bond strength, compressive strength, dry density, PH value, water resistance, Cold and heat cycle resistance, etc., and the corresponding standard values are specified.

Because steel structure fire retardant coatings are often used on the surface of various building steel structures, it can improve the fire resistance limit of steel structures. Therefore, it is necessary to strictly test and monitor the performance of various indicators of fire retardant coatings.

This article is a list of instruments used for testing the physical and chemical properties of fireproof coatings for steel structures according to the provisions of the GBT14907 standard, compiled by NBCHAO for reference by industry users:

Film Proofing - Drying Time
	Shibo Weiye QKL Initial Drying Anti-cracking Tester
	Specification parameters: structural axial flow fan, test wind tunnel, test piece rack and air volume control device, timer, anemometer, timer delay range 0.01 second to 99 hours and 99 minutes, application of architectural coatings, initial drying of indoor and outdoor architectural putty Crack resistance test, in line with the standard GB/T 9779-88
	Pushen GZY-I Linear Drying Time Meter
	Specification parameters: the number of marking needles is 6 needles, the marking needle specification is Φ1mm, the load weight is 11g, the stroke is 300mm, the trajectory cycle is 6/12/24h, the implementation standard is ISO 9117-4 ASTMD 5895, the motor power is 20W, the overall size is 490*220*130mm, Shipping weight 10kg
Environmental testing - temperature and humidity control
	Zhongke Huantest GDS-100B High and Low Temperature Humidity Test Chamber
	Specification parameters: studio size 450*450*500mm, temperature control range -20~150°C, humidity control range 30~98%RH, temperature fluctuation ≤±0.5°C, humidity deviation +2, -3%RH, heating rate -20→100℃≈35min; -40→100℃≈45min, cooling rate 25~-40℃≈50min; 25~-60℃≈65min, controller (7.0 inch) super large screen programmable touch-type temperature and humidity control Accuracy range setting accuracy: temperature ±0.1℃, humidity ±1%RH, sensor platinum resistance PT100Ω/MV, heating system fully independent system, nickel-chromium alloy electric heating heater, humidification system built-in isolation, all stainless steel shallow Surface evaporative humidifier, dehumidification system adopts evaporator coil dew point temperature laminar contact dehumidification method, refrigeration system original French "Taikang", fully enclosed air-cooled compression refrigeration method, circulation system temperature-resistant low-noise air-conditioning motor, multi-leaf type Centrifugal wind wheel, outer box material A3 steel plate electrostatic spray treatment, studio material SUS304 stainless steel mirror plate, insulation material polyurethane rigid foam, ultra-fine glass fiber cotton, door frame heat insulation double-layer high-low temperature aging silicone rubber Door sealing strip, adjustable timing range 0~9999 M, H, standard configuration multi-layer heating and defrosting with 1 set of lighting glass window, 2 test sample racks, 1 test lead hole φ50mm, safety protection against leakage, short circuit, over temperature, Water shortage, motor overheating, compressor overvoltage, overload, overcurrent protection, power supply voltage AC220V±10% 50Hz AC380V±10% 50Hz three-phase five-wire system, working environment temperature 5~30℃, working environment humidity ≤85%RH , temperature uniformity≤+2℃
Raw Material Performance Testing - Density
	Xiongfa MH-300A Solid Density Meter
	Specification parameters: weighing range 0.01g~300g, density accuracy 0.001g/cm³, density measurement range 0.001~99.999g/cm³, measurement types solid, granular, thin film, floating body, test time is about 5 seconds, the result shows density, volume , the temperature of the temperature compensation solution can be set to 0~100°C, and the temperature of the solution compensation solution can be set to 19.999
General Laboratory Equipment - Electrochemistry
	Lei Magnetic PHS-25 PH Meter
	Specification parameters: instrument level 0.1, mV range (-1400~1400) mV, mV minimum resolution 1 mV, mV electronic unit indication error ±1%FS, pH range (0.00~14.00)pH, pH minimum resolution 0.01 pH, pH electronic unit indication error ±0.05pH, power supply adapter (input: AC100~240V, output: DC9V), size 200×160×63mm, weight 0.6kg
Mechanical Properties - Adhesion
	Rongjida LB-6S Intelligent Bond Strength Puller
	Specification parameters: measuring range 0~6.000KN/3.75Mpa, force value unit Mpa/KN adjustable, resolution 0.001KN, drawing stroke 10mm, instrument structure integrated type, split type, main material imported alloy material, weight 2.0kg, Configurator display mode digital, data storage 200, LCD lighting, power supply high-capacity lithium battery, broken line correction 10 segments, data interface USB interface charging, optional test block size 100*100mm, Φ50mm, data query and deletion Yes, peak value keep there