On December 1, the **"Green Sheet Procurement Standards"**, issued by the Ministry of Commerce, officially came into effect. This is the first domestic standard to regulate green boards and also marks China's first green board standard aligned with international norms. The introduction of this standard represents a significant step forward in environmental protection within the construction and furniture industries.
The "Green Sheet Procurement Standards" categorize green boards into three grades: G1, G2, and G3. Among these, G1 is the highest grade, made using **formaldehyde-free adhesives**—hence, it's referred to as the **"Aldehyde-Free Grade."** G2 represents the current highest level of environmental protection, known as the **"Formaldehyde Level,"** while G3 is the lowest. The formaldehyde emissions for G1 are extremely low, nearly matching the natural state of wood, with G2 emitting no more than 0.3mg/L and G3 up to 0.5mg/L.
In the future, consumers will be able to identify eco-friendly boards by checking for the **"3G" logo** on products. Compared to the current national E-level standards, which include E0 (≤0.5mg/L), E1 (≤1.5mg/L), and E2 (≤5.0mg/L), the new "Code" imposes stricter limits on formaldehyde emissions.
Products that meet the standards will be labeled with the **"Green Home Building Materials 3G Environmental Label,"** indicating their compliance level. Additionally, the China Green Home Environmental Technology Working Committee will conduct third-party reviews of manufacturers' production processes to ensure consistent quality of green board products.
It’s important to note that even the so-called **"formaldehyde-free"** boards are not completely free of formaldehyde. Wood itself contains trace amounts of formaldehyde, and the use of formaldehyde-free adhesives doesn't eliminate all emissions. According to the new standards, "formaldehyde-free" means the adhesive used in production does not contain added formaldehyde, but the final product may still release some formaldehyde, depending on the raw materials.
For example, when manufacturing cabinets, other materials like veneer, paint, and edge banding may introduce additional sources of formaldehyde. Therefore, achieving **"zero formaldehyde"** is practically impossible. Moreover, the **"3G" label** only reflects the environmental level of the board material, not the entire product.
Experts warn that meeting one standard does not guarantee a home is fully eco-friendly. The **"superposition effect"** of multiple materials can lead to indoor air pollution. Many products may individually meet national standards, but when combined, they could exceed safe levels.
Recently, many people who moved into newly renovated homes or work in high-end offices have experienced symptoms like headaches, chest tightness, and irritability—commonly referred to as **"Sick Building Syndrome."** This often results from poor ventilation and excessive use of decorative materials without proper regulation.
While many consumers prioritize health during renovation, the market has seen an increase in furniture labeled as **"zero formaldehyde."** Although more expensive, these products are popular among homeowners concerned about safety. However, skepticism remains, especially regarding claims of "zero formaldehyde."
Industry experts suggest that such claims are often exaggerated. As long as formaldehyde levels meet national standards, there is no need to overreact. The new regulations now require furniture companies to be more cautious when advertising "zero formaldehyde" products.
In summary, while the new green board standards represent progress, consumers should remain informed and not rely solely on labels. A balanced approach, including proper ventilation and material selection, is essential for a truly healthy living environment.
Manhole Cover
A manhole cover is a removable plate that is used to cover the opening of a manhole, which is a hole in the ground that provides access to underground utility lines, such as sewer, water, or electrical systems. Manhole covers are typically made of cast iron or other durable materials to withstand heavy loads and prevent unauthorized access to the underground infrastructure. They are usually round in shape to prevent them from falling into the hole and are designed to be easily lifted and replaced by maintenance workers when necessary. Manhole covers are an essential component of urban infrastructure, ensuring the safety and functionality of underground utility systems.
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