Shanghai Rongjida Instrument Technology Co., Ltd. ** operates cement experiment equipment, concrete experiment equipment, highway geotechnical experiment equipment, dry mortar thermal insulation mortar experiment equipment, asphalt waterproof material experiment equipment, paint coating experiment equipment, non-destructive testing and other experimental equipment. ** Operating cement experiment equipment, concrete experiment equipment, highway geotechnical experiment equipment, dry mortar thermal insulation mortar experiment equipment, asphalt waterproof material experiment equipment, paint coating experiment equipment, non-destructive testing and other experimental equipment. Company products rely on excellent quality, perfect after-sales service, reasonable prices sell well in major universities, testing units, building materials enterprises, engineering construction units. It enjoys a high status and a good reputation among consumers, and has customers in nearly 30 provinces, cities, and autonomous regions in China, and has been exported to foreign countries. It has established long-term and stable cooperative relationships with users. The strength of the company, credit and contract compliance. Have a sound management system and a sound quality management system. And has a responsive and thoughtful after-sales service system. We will make unremitting efforts to serve our customers with excellent quality as always.
I. Brief introduction of gypsum moisture deflection tester:
The gypsum moisture deflection tester is a testing instrument designed and manufactured in accordance with the national JC / T799-2007 standard for gypsum standards. A number of new products launched by Rongjida Instruments have been well received. We have always adhered to the belief of innovation and unremitting efforts. Continue to work hard to provide customers with better products and services.
Second, the technical parameters of gypsum moisture deflection tester
★ Decorative gypsum board moisture deflection tester is based on JC / T799-2007 standard.
★ Environment: Cement Conservation Lab: Temperature at (32 + 2), relative humidity (90 + 3)
★ Decorative gypsum board moisture deflection tester: 500X250X9 or 600X300X11 (mm) 3 groups.
★ According to the test requirements, 3 sets of fixtures are required, and each set is equipped with a dedicated ruler and a level ruler with an accuracy of 0.01mm.
★ Dry the test pieces, then suspend each test piece face down and suspend it on the supports of the three test stands in the test box of the moisture disturbance meter. The center distance of the support is the length of the test piece minus 20mm. Under the condition that the relative humidity of the document is 32 degrees and 90 degrees, the test piece is placed for 48 hours and the source is a special measuring head.
★ Dimensions: 600 * 500mm
★ Weight: 40kg
★ The three test pieces specified by the moisture deflection tester are dried to constant weight according to 5.3, and then each test piece is face down and suspended on the support of three test racks in the test box of the moisture deflection tester. On the seat, the center distance of the support is the length of the test piece minus 20mm. At a temperature of 32 ± 2 ° C and a relative humidity of 90% ± 3%, the test piece was left for 48 hours. Then remove the test piece from the test box together with the test rack, and use a special measuring head to measure the sagging deflection of the middle of the test piece on each test rack. Calculate the average value of moisture deflection of the three test pieces, and record the large A value to the nearest 1 mm.