What is a formaldehyde emission climate chamber? What are the precautions for use? Formaldehyde emission testing climate box: for a variety of artificial boards, composite wood flooring and other indoor decorative materials, formaldehyde emission determination, wood or artificial boards of constant temperature and humidity balance processing, can also be used for other building materials in the detection of volatile harmful gases. Design and manufacture of scientific and reasonable, easy to use, is the production enterprises, research institutions, technical supervision departments, colleges and universities and other units of the product. The limited release of formaldehyde indoor decoration materials is the world's general concern about the environmental hotspot, various types of indoor decoration materials (such as: wood-based panels, carpets, paints, wallpaper, curtains, etc.) the size of formaldehyde emissions is an important indicator of the quality of its products, the relationship between the product's impact on environmental pollution and human health. Formaldehyde emission test climate chamber test method is commonly used in foreign countries, indoor decoration, decoration materials, formaldehyde emission testing of standard methods, which is characterised by simulated indoor climate environment, test results closer to the actual, and therefore real, reliable. 1.Formaldehyde emission climate box standard foot standard: GB/T18580-2017 Formaldehyde Emission Limit of Indoor Decoration Materials, Wooden Boards and Their Products. GB18581-2009 ‘Indoor decoration materials solvent-based wood coatings in the limited amount of harmful substances’. GB18582-2008 Harmful Substances in Interior Decoration Materials and Interior Wall Coatings. 2. Formaldehyde emission climate box notes: (1) every 1 ~ 2 months the water tower, water tank in the water to be replaced, open the box back of the back of the lower part of the water release valve can be (downtime). (2) formald

Ozone aging tester to evaluate rubber aging performance Ozone aging tester is an experimental instrument to evaluate the aging of rubber. Rubber in the process of thermo-oxidative aging structural changes can be divided into two categories: one is the degradation of the molecular chain of the main thermo-oxidative aging reaction (cleavage); the second is the cross-linking between the molecular chain of the main thermo-oxidative aging (structuring). Natural rubber contains isoprene rubber, butyl rubber, binary ethylene propylene rubber, homopolymerized chlorohydrin rubber and copolymerized chlorohydrin rubber. The appearance of this type of rubber after thermo-oxidative aging is soft and sticky. Butadiene rubber containing cis-butadiene rubber in the process of thermal oxygen aging, the main crosslinking reaction occurs, similar rubber varieties and NBR / SBR / CR / ERDM / FPM / CSM, etc.. This kind of rubber in the occurrence of thermal oxygen aging after the appearance of hardening, brittle. Ozone aging test chamber to assess the rubber aging performance 1. Rubber aging influences the main factors are: (1) oxygen: oxygen in the rubber with the rubber molecules occur free radical chain reaction, molecular chain breakage or excessive crosslinking, causing changes in rubber properties. Oxidation is one of the important causes of rubber aging. (2) Ozone: the chemical activity of ozone is much higher than oxygen, more destructive, it is the same molecular chain breakage, but the role of ozone on the rubber with the rubber deformation and different. When applied to deformed rubber (mainly unsaturated rubber), cracks appear with the direction of stress straight, the so-called “ozone cracking”; role in the deformation of the rubber, only the surface of the oxide film generated without cracking. (3) Heat: Increasing the temperature can cause thermal cracking or thermal cross-linking of rubber. But the basic role of heat or activation. Improve the

Selection of rain test chamber to pay attention to that several aspects Rain test chamber is used in a wide range of products, such as signaling devices and aviation products, automotive lamp shell protection, a large part of these products need to test waterproof performance through the rain test chamber, rain test chamber applications so wide, then how to buy rain test chamber is very important, now we explain. 1. Precautions for the rain test chamber: (1) After the positioning of the equipment, the support frame needs to be propped up to prevent the casters from being shifted by the vibration when the equipment is tested. (2) The rain test chamber longer operation, such as the discovery of water spray holes blocked, must be removed from the pipeline, flushed with tap water and then assembled on. (3) In the operation of the unexpected sound, you need to stop the machine to check, to be found out to solve the problem before reopening, so as not to affect the service life of the equipment. (4)The transmission mechanism must be refueled regularly, and the reducer must be added with clean 20# oil. 2. Price comparison Optional price, measure whether the equipment is a penny a penny, some in order to attract the users of the eyeballs, often pull down the price, no matter how you need to remember one thing, the price is pulled down at the same time its quality is also imaginable, more than a manufacturer is willing to do business at a loss. Therefore, we should consider the cost-effectiveness of the rain test chamber! 3. Size selection Selection of rain test chamber must first be based on the need to test the size of the product, to determine the size they need, there are two common size as an example: According to the principle of environmental test chamber selection, specimen samples and the ratio of the volume of the test chamber should be 1:3, in the purchase of various aspects of the volume you need to consider. 4. Rain test chamber pendulum tube selection The cho

Artificial board 1 cubic meter climate chamber how to use According to the latest “Manufacturing License Implementation Rules for Wood-based Panel Products” requirements, wood-based panel manufacturers need to mandatory testing of formaldehyde emissions from wood-based panels, according to the requirements of the enterprise can be used 1m³ climate chamber method of testing and inspection, the test structure needs to meet the GB 18580-2017 “Indoor Decorative and Decorative Materials Artificial Panels and their products in the formaldehyde emission limits” in Chapter IV of the mandatory formaldehyde emission limits E1 ≤ 0.124mg/m³ requirements of the regulations. If you haven't used the man-made board 1 cubic meter climate chamber before, and now you need to use it, how should you use it? Below, let's take a look at the use of 1 cubic meter formaldehyde emission test box . 1.Steps for use: Test equipment: the ring instrument man-made board 1 cubic meter climate box Test results: formaldehyde emission limit E1 ≤ 0.124mg/m³ 2. Use method: (1) Place the artificial board to be tested in the test chamber on the board support, close the door of the climate chamber. (2)Turn on the power switch and turn on the equipment. (3) Set the test parameters on the control panel, including the start sampling time or continuous sampling time of the climate chamber. (4)Start the fan, air pump, temperature adjustment device, humidity adjustment device, respectively, the flow rate of the flow meter is set to 0.25m³/h, the air displacement rate is 0.125m³/h, the humidity of the humidity adjustment device 12 is set to 50%, when the climatic box runs to the set sampling time, the sampling pump is automatically turned on for the formaldehyde collection, and the sampling pump should be set to collect the time and the flow rate before it runs. (5) plate formaldehyde release stabilized after the closure of the fan, air pump, sampling pump, temperature adjustment device, humidity adjustment device

The use of smoke generator and professional explanation Smoke generator ring instrument series is an economical and practical a pure water sprayer, the use of ultrasound Bo atomization principle, will be pure water with ultrasonic atomization into a large number of 1 ~ 10 microns or so of water mist, under the action of the external pressure, discharged through the smoke pipe, you can show a thicker smoke, in a number of industries, especially in the clean room industry to test the organization of the state of the airflow is very intuitive. 1. Fog generator into the amount of fog Fog fittings in the rated operating conditions (fixed supply voltage, operating current, ambient temperature and humidity, atmospheric pressure, water quality, initial water temperature, fog chamber volume, working water level, installation structure and form, air supply), the ability to turn the water into fog per hour, the unit of mL / H (milliliter per hour). The company is equipped with a professional device to detect the fogging volume of fogging accessories. 2. Mist output Fog accessories in the ultrasonic atomization device into a fog in the atomization chamber, the fan air supply, the actual amount of fog from the fog pipeline spray, the unit is milliliter per hour (mL / H). In the fog into a fixed amount of conditions, the amount of fog and ultrasonic atomization device is closely related to the internal structure. 3. The fog height of the fog generator Fog fittings in the atomization work, the ultrasonic energy axis at the water surface to form the highest point of the fog column to the vertical distance from the horizontal, in millimeters (mm). Fog accessories into the fog height determines the corresponding ultrasonic fog device into the fog space design height. 4. Fog rate of the fog generator The ratio of the fogging volume of the fogging device to the fogging volume. Fog rate is usually used to assess the fog pipeline and duct flow design reasonableness, this value is general

1.Equipment testing standard basis: GB18580-2017 “Formaldehyde Emission Limits in Wooden Boards and Products for Indoor Decoration Materials”. GB18584-2011 《Limit of Hazardous Substances in Wooden Furniture of Indoor Decoration and Furnishing Materials》(Approval Draft) GB18587-2001 《Limit of Hazardous Substances Released from Carpets, Carpet Pads and Carpet Adhesives of Indoor Decoration and Decoration Materials》(Approval Draft) GB17657-2013 Experimental Methods for Physical and Chemical Properties of Artificial Boards and Veneered Artificial Boards LY/T1612-2004 1M3 Climate Chamber for Formaldehyde Emission Testing GB50325-2010(2013) “Indoor Environmental Pollution Control Standard for Civil Construction Engineering”. ASTM D6007-02 “Standard Test Method for Determination of Formaldehyde Concentration in Released Gases from Wood Products by Small Scale Environmental Chamber”.