After testing, the wood-based panel passed 5 batches with a pass rate of 9.3%, and the 49 batches failed with a 90.7% pass rate, including 15 batches of formaldehyde emission exceeding the standard, accounting for 27.8% of the spot-checked wood-based panels. The highest value is 58mg / 100g plate, which exceeds 7.25 times the allowable value (8mg / 100g plate). 16 batches of flooring are qualified, with a pass rate of 40%. 24 batches were unqualified, the failure rate was 60%, among which 20 batches failed to pass the wear resistance, accounting for 50% of the sampling floor, only 1 batch of formaldehyde emission exceeded the standard, which was 2.5mg / L, and the formaldehyde of the remaining floors The release amount is below 0.5mg / L, reaching the E0 level product level. The main quality problems of wood-based panels: the static bending strength is unqualified, accounting for 57.4% of the total batch of random inspection wood-based panels; the formaldehyde emission exceeds the standard, accounting for 27.8% of the total batch of random inspection wood-based panels. The main quality problems of the floor: unsatisfactory wear-resistant revolutions, accounting for 50% of the total batch of random inspection floors; internal bond strength and static bending strength are unqualified, accounting for 32.5% and 30.0% of the total batch of random inspection floors. The formaldehyde emission of most reinforced wood floors can reach the product quality requirements of E0 level (≤0.5mg / L). Consumers should refer to the following when purchasing wood-based panels and floors: 1. Look at the logo. To buy products with complete logos and signs. Regular products should be marked with brand, factory name, site, implementation standards and product grade, and the formaldehyde emission of indoor wood-based panel and floor products should have E1 or E0 grade mark. 2. Look at the appearance of the product. The high-quality plain-faced man-made board has a smooth appearance and a smooth feel, without bulging and layering. There are no defects such as chromatic aberration, scratches, or cracks on the veneer-based panel and the floor panel. When exposed to light, the panel surface should reflect evenly, without obvious defects of uneven unevenness. led chip 5050,chip led 5050,smd led 5050,smd led 5050 white,smd led 5050 datasheet SHENZHEN YGHQ Optoelectronics Co.,ltd. , https://www.leds-smd.com
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Heilongjiang Industrial and Commercial Bureau carried out quality monitoring of wood-based panels and floors
Xinhuanet, Harbin, October 25 (Zhang Huiping) In order to strengthen the quality supervision and management of wood-based panels and floor commodities in the circulation field, the Heilongjiang Provincial Administration for Industry and Commerce entrusted the Heilongjiang Province Quality Supervision and Inspection Station of wood-based panels and log products to Yichun and Hegang , 54 batches of wood-based panels and 40 batches of flooring sold by 66 distributors in Qiqihar, Jixi and other places were quality-monitored. According to GB18580-2001 "Formaldehyde Emissions from Wood-based Panels and Products for Interior Decoration", GB / T5849-2006 "Blockboard", GB / T11718-2009 "Middle Density Fiberboard", GB / T4897-2007 "Particleboard" , GB / T18102-2007 "impregnated paper laminate wood flooring", GB / T15102-2006 "impregnated film paper-based artificial board" standard requirements, formaldehyde release amount, static bending strength of artificial board and floor products, The core quality, nail holding force, peeling, internal bonding strength, water absorption thickness expansion rate, surface wear resistance, surface bonding strength and other items were tested.