Breaking News

Development of formaldehyde limit standard for wood-based panel to protect consumer health

Development of formaldehyde limit standard for wood-based panel to protect consumer health

October 27, 2021 source: China Standardization

Since the eighteen Party’s Congress, general secretary Xi Jinping has repeatedly stressed that people’s safety and health should always be placed in the right place. China is the largest producer, consumer and international trading country of wood-based panels and their products in the world. In 2020, China’s output of wood-based panels will reach 300 million cubic meters, the output of wood and bamboo flooring will reach 500 million square meters, and the total output value of the wood processing industry will exceed 3 trillion yuan. The quality of wood-based panels and their products is related to the people’s health and life safety. For a long time, it has been widely concerned by the party, the government and all sectors of society. The relevant leading comrades of the Central Committee gave special instructions on the formaldehyde emission standard of wood-based panels and their products. This series of instructions and important discussions have fully demonstrated the strong determination of the Central Committee of the party with Comrade Xi Jinping as the core to safeguard the vital interests of the masses, and the people’s feelings of governing for the people and for the masses.

In order to control the formaldehyde pollution of wood-based panels and their products and ensure the safety of living environment and the health of consumers, the National Technical Committee for wood-based panel standardization organized the preparation and revision of formaldehyde emission limits of wood-based panels and their products for interior decoration materials (GB 18580), classification of formaldehyde emission from wood-based panels and their products (GB / T 39600-2021) and Guide for indoor load limit of wood based panel based on limit formaldehyde emission (GB / T 39598-2021) And other three standards, strengthen the red line of environmental protection quality of wood-based panels and their products, effectively promote the development of green wood-based panels and their products industry such as low formaldehyde and formaldehyde free addition, create a more environmentally friendly indoor home space, protect the safety of living environment and consumer health, promote industrial transformation and upgrading, and realize the people’s yearning for a better life.

Protect consumer health and promote industrial transformation and upgrading

Formaldehyde is a harmful substance harmful to human health and the main factor affecting indoor air quality and environmental pollution. Wood products such as wood-based panels and wooden floors will use adhesives containing formaldehyde in the production process, and release a certain amount of free formaldehyde in the use process, endangering consumer health and affecting the quality of living environment. Countries all over the world pay great attention to this and strictly regulate it Fan management.

The party and the government attach great importance to the formulation and revision of formaldehyde emission limit standards for wood-based panels and their products. Around 2000, all sectors of society reported that indoor decoration pollution was serious. Among them, the formaldehyde emission of wood-based panels and their products, the main raw materials and products of indoor decoration materials, was not standardized, the health of consumers could not be guaranteed, and there was no basis for market supervision. Indoor decoration pollution The problem was highly valued by the then Vice Premier of the State Council, Comrade Wen Jiabao, and made an important instruction that “indoor decoration pollution is serious and it is urgent to standardize the market”. Therefore, the former AQSIQ issued 10 “limits of harmful substances in indoor building decoration materials” such as formaldehyde emission limits of indoor decoration materials, wood-based panels and their products The national standard formulation plan was approved on December 10, 2001, and the mandatory national standard formaldehyde emission limits of interior decoration materials, wood-based panels and their products (GB 18580-2001) was issued.

Formaldehyde emission limits of wood-based panels and their products for interior decoration materials (GB 18580-2001) Referring to European standards and taking full account of the actual development of domestic industry, the formaldehyde emission is divided into E1 and E2 levels according to product types and formaldehyde test methods. The release of this standard fills the gap in the formaldehyde emission limit standard of wood-based panel and its products in China, and has made great contributions to controlling indoor formaldehyde pollution, improving the environmental protection performance of wood-based panel products and protecting the health of consumers: Firstly, it provides law enforcement basis for the government to supervise the harmful substances of wood-based panel and its products; secondly, it promotes the technological progress of China’s wood-based panel industry, vigorously promotes the research and development and innovation of new technologies, and develops new low toxicity or non-toxic environmental adhesives and a variety of aldehyde free adhesives, which are applied in wood-based panel and its products; thirdly, it is conducive to reducing the environmental pollution caused by harmful substances such as formaldehyde, which is of great significance It has effectively reduced the degree of indoor pollution, met the urgent needs of consumers for environmental protection materials and products for home decoration, and protected consumers’ health; fourth, it has strengthened the attention of wood-based panel and its product enterprises to environmental protection indicators and product quality, promoted enterprises to introduce advanced technology, improve production technology and improve the quality of wood-based panel products. According to the national quality supervision and Inspection Administration of the former State Administration of quality supervision, inspection and quarantine The results of home supervision and random inspection show that after the release of the standard, the random inspection qualified rate of blockboard products increased from 59.1% in 2002 to 95.0% in 2016; the random inspection qualified rate of plywood products increased from 82.1% in 2002 to 98.0% in 2016; the random inspection qualified rate of fiberboard products increased from 73.2% in 2003 to 94.3% in 2015; the random inspection qualified rate of particleboard products increased from 60.4% in 2010 to 94.2% in 2014; impregnated paper lamination The passing rate of random inspection of wood flooring products increased from 87.8% in 2012 to 95.3% in 2015, which greatly improved the product quality level of wood-based panels and their products in China.

Around 2006, the international organization for Standardization (ISO), the European Union, the United States and Japan successively issued new formaldehyde emission limit standards for wood-based panels and their products, and raised the formaldehyde emission limit requirements. With the social progress and the continuous improvement of consumers’ environmental protection requirements for consumer products, all sectors of society also required to raise the formaldehyde emission limit and national standards The original technical indicators of formaldehyde emission limits of indoor decoration materials wood-based panels and their products (GB 18580-2001) can not meet the needs of social development, industrial transformation and upgrading and consumer health protection. In 2007, the National Standardization Administration Committee issued GB 18580-2001 formaldehyde emission limits of indoor decoration materials wood-based panels and their products in due time Mandatory national standard revision plan to start the revision of the standard.

From 2009 to 2017, sun Taili, a member of the 11th and 12th CPPCC National Committee, submitted seven proposals, suggesting accelerating the revision and release of standards and promoting industrial transformation and upgrading. In 2014, sun Taili submitted the proposal on accelerating the revision of national standards, promoting the transformation of wood-based panel industry and ensuring the safety of human settlements It was listed as the key supervision proposal of the National Standardization Management Committee in that year. In 2017, member sun Taili made a speech at the meeting on “urgent revision of the national standard for formaldehyde emission from wood-based panels” submitted at the fifth session of the 12th CPPCC National Committee, and received important instructions from then state Councilor Wang Yong, which promoted the formaldehyde emission limit of wood-based panels and their products for interior decoration materials (GB 18580-2001). On April 22, 2017, it was approved to issue the new version of the national standard formaldehyde emission limits of interior decoration materials, wood-based panels and their products (GB 18580-2017).

Newly revised formaldehyde emission limits of interior decoration materials, wood-based panels and their products (GB 18580-2017) Resolutely implement the national green development strategy, promote industrial transformation and upgrading and protect consumer health, actively respond to the requirements of all sectors of society to improve the formaldehyde emission index, improve the formaldehyde emission limit requirements of wood-based panels and their products, and the standard technical indicators are in line with international standards. GB 18580-2017 stipulates that the formaldehyde emission limit value of wood-based panels and their products for indoor decoration materials is small Equal to 0.124 mg / m3 (mg / m3), the limit mark E1, canceling the E2 level of the original standard. The formaldehyde emission limit value of the new standard is consistent with the provisions of ISO 16893:2016 wood based panel particleboard and ISO 16985:2016 wood based panel dry fiberboard; all products adopt the “formaldehyde emission determination – 1m3 climate box method” The test is consistent with the international standard ISO 12460-1:2007 determination of formaldehyde emission from wood-based panels Part 1: 1m3 climate box method The detection methods are consistent, and the dryer method and perforated extraction method are cancelled. The release and implementation of GB 18580-2017 cancels the E2 level of the original standard, improves the formaldehyde emission index requirements of wood-based panels and their products, forces the enterprises that can only produce E2 level products of the original standard to stop production or close down, and promotes the enterprises to introduce new technologies of adhesives with low formaldehyde and no formaldehyde addition for transformation and upgrading, so as to make the production more environmentally friendly Protect our products and effectively promote the green development of wood-based panel and its products industry.

Promote high-quality industrial development and ensure the safety of consumers’ living environment

High quality development has become the main theme of social and economic development, and the wood-based panel and its products industry has also entered a high-quality development stage. In order to better meet consumers’ demand for high-quality green wood-based panel products and accelerate the high-quality development of wood-based panel industry, the National Standardization Management Committee approved and issued the classification of formaldehyde emission from wood-based panel and its products in March 2021 (GB / T 39600-2021) and the recommended national standards of guidelines for indoor bearing limits of wood-based panels based on limit formaldehyde emission (GB / T 39598-2021).

The classification of formaldehyde emission from wood-based panels and their products (GB / T 39600-2021) specifies the classification requirements, test methods and judgment rules of formaldehyde emission from indoor wood-based panels and their products. According to the limit value, the formaldehyde emission from indoor wood-based panels and their products is divided into E1 (≤ 0.124mg/m3), E0 (≤ 0.050mg / m3) and enf (≤ 0.025mg / m3) The three grades further refine the formaldehyde emission of wood-based panels and their products on the basis of the requirements of the mandatory national standard GB 18580-2017, which is a supplement to GB 18580-2017. The release and implementation of the standard can guide and drive enterprises to produce more environmentally friendly and green wood-based panels and wood-based panel products, lead the technological progress of the industry, and vigorously promote the addition of adhesives with low formaldehyde and no formaldehyde The wide application of cyanate ester adhesive and soybean adhesive can meet the needs of consumers for wood-based panels and their products with different environmental protection grades, and promote the high-quality and green development of wood-based panels and their products industry.

Guide for indoor load limit of wood based panel based on limit formaldehyde emission (GB / T 39598-2021) It standardizes the calculation method of indoor bearing limit of wood-based panel based on limit formaldehyde emission, which is applicable to the bearing limit of wood-based panel used for indoor furniture, cabinet, wooden door, wooden wallboard, wooden floor and other wooden products. This standard can effectively solve the problem of wood-based panel products with qualified formaldehyde emission purchased by consumers, but excessive use in unit volume space will lead to formaldehyde in the air The release and implementation of this standard is of great significance to protect consumers’ health, ensure the safety of consumers’ living environment and eliminate indoor environmental pollution.

Disclaimer: any content indicating the source of the manuscript is a reprinted manuscript or registered and published by enterprise users. This website reprints it for the purpose of transmitting more information; if the reprinted manuscript and pictures involve copyright issues, please contact us for deletion. At the same time, this website does not mean to agree with its views or confirm the authenticity of its content for user comments and other information.

如无特殊说明,文章均为本站原创,转载请注明出处。If there are no special instructions, the articles are original, if you want to use or reproduce, please indicate the original source www.plywoodinspection.com,If you find that our articles infringe on your copyrights and interests, please email us at info@plywoodinspection.com in time and we will delete it at the first time.

Check Also

A method for producing all Eucalyptus plywood with weather resistant composite urea formaldehyde resin.

A method for producing all Eucalyptus plywood with weather resistant composite urea formaldehyde resin. The …

Leave a Reply

Your email address will not be published. Required fields are marked *