GB/T 20623 Emulsion Performance Testing Scheme for Architectural Coatings [Instrument List]

The GB/T 20623 standard stipulates various performance tests that need to be carried out during the production process of emulsions for architectural coatings, as well as the standard requirements that the corresponding performance must meet.

According to the GB/T 20623 standard, the emulsions for architectural coatings should deal with their state in the container, mass fraction % of non-volatile matter, pH value, viscosity, minimum film forming temperature, freeze-thaw stability, storage stability, dilution stability, mechanical Stability, calcium ion stability, residual monomer synthesis and other properties were tested and met the standard requirements. Detailed testing methods are provided in the standard.

In this issue, according to the standard requirements, the North and South Tide have sorted out the list of instruments used for the performance testing of emulsions used in architectural coatings. The specific testing instruments are as follows:

Film Proofing - Drying Time
	Jingke QMB Minimum Film Forming Temperature Meter
	Specification parameters: Gradient plate working temperature range -7~70℃, 13 temperature measuring points, gradient interval 20mm, 6 test coating tanks, length 240mm, width 22mm (national standard 20~25mm), depth 0.25mm (national standard 0.20~0.30 mm), the inspection table shows 16 points, of which 1~13 points are the working gradient temperature, 14 points are the ambient temperature of the instrument, 15 and 16 points are the cooling water inlet and outlet temperatures, standard GB9267-88
Environmental testing - temperature and humidity control
	Kangheng KH-25A digital display electric Forced Air Drying Oven
	Specification parameters: temperature control range RT+5~250, temperature fluctuation ±1%, accuracy ±0.5°C, studio size 250*250*265mm, studio material galvanized steel, outer box material cold-rolled steel surface electrostatic spraying Plastic, timing range 0~999min, observation window, power supply voltage 220V, input power 500W, external dimensions 470*540*450mm
General laboratory equipment - mixing and dispersing
	Shanghai analysis HR-400JBF laboratory high-speed grinding and dispersing machine
	Specification parameters: motor power 400W, processing capacity 5L, speed range 0~8000rpm, power supply voltage 220V
Raw Material Performance Testing - Viscosity
	Jingtian NDJ-8S Digital Display Rotary Viscometer
	Specification parameters: display mode digital display, measuring range 20~2000000mPa s, rotor specifications L1#, L2#, L3#, L4#, reproducibility ± 0.5%, measurement accuracy ± 1%, special power adapter for power supply voltage ( Input 100～240V 50～60Hz), rotor speed 0.3/0.6/1.5/3/6/12/30/60rpm, display information LCD screen can display viscosity, speed, percentage torque, rotor number and the current The maximum viscosity value that can be measured at the rotational speed, etc.
General Laboratory Equipment - Electrochemistry
	Bante PHS-3CW-CN Laboratory pH Meter
	Specifications: PH measurement range 0.00~14.00pH, PH measurement accuracy ±0.01pH, resolution 0.01pH, temperature measurement range 0~100℃, power supply DC9V power adapter, overall size 210*205*65mm, weight 1.5kg, calibration method 2 points, use calibration solution USA (pH4.01/7.00/10.01) or NIST (pH4.01/6.86/9.18), mV measurement range -1999~1999mV, mV measurement accuracy ±10mV, mV resolution 1mV, connector BNC , optional accessories E201-BNC pH electrode, E202-BNC pH electrode, pH standard buffer reagent (NIST standard), pH standard buffer reagent (USA standard), packing size 300*240*170mm, packing weight 1.7kg, Temperature compensation mode manual

The above is the GB/T 20623 Emulsion Performance Testing Scheme for Architectural Coatings, I hope it will be helpful to you. For the detailed content of the GB/T 20623 standard, you can enter the Northern and Southern Chao Standard Library for reading.