In the controversy surrounding polyvinyl chloride (PVC) food cling film, officials from national health and quality inspection agencies have previously clarified that the national standards for PVC food packaging are aligned with international norms. According to these standards, the use of DEHA (bis(2-ethylhexyl) adipate) is not permitted. Instead, only DOA (dioctyl adipate), DOP (phthalate di(2-ethylhexyl)), and other non-harmful plasticizers are allowed. However, recent discussions and media reports have sparked confusion, as some government officials and journalists have incorrectly claimed that DEHA is the harmful substance, while DOA is considered safe.
To address this, a reporter recently interviewed the director of a company specializing in plasticizers, as well as experts from the Chinese Academy of Sciences and universities. These individuals expressed concerns about the misleading information being circulated. The director of Yixing Water Aid Additive Factory, Zhou Yongfang, pointed out that DOA and DEHA are essentially the same chemical, just referred to by different names. He emphasized that there is no distinction between them in terms of chemical structure or toxicity.
The reporter reviewed the National Standard GB9685-2003, which outlines the permissible plasticizers for food containers and packaging materials. According to the standard, DOA is listed first, while DEHA is not included. Despite this, many people continue to confuse the two. Experts such as Sun Wenhua from the Chinese Academy of Sciences, Professor Gongliu Cheng from Beijing University of Chemical Technology, and Professor Jiang Pingping from Jiangnan University confirmed that DOA and DEHA are indeed the same compound. Professor Gongliu Cheng stated, “Yes, DOA is DEHA. As a chemical professional, I feel it’s my responsibility to clarify this.â€
Some foreign companies producing PVC food wrap in China have also used public perception to their advantage, claiming they use DOA instead of DEHA, as it is supposedly allowed under Chinese standards. However, Director Zhou pointed out that this is misleading, as many officials remain unaware that DOA is actually DEHA. He expressed frustration over media statements that labeled DEHA as toxic and DOA as harmless, even though both are chemically identical.
Moreover, the report highlighted the potential dangers of DOP (di(2-ethylhexyl) phthalate), which is more widely used than DOA in food packaging and medical products. While DOP is not explicitly banned in China, its safety has been questioned internationally. Studies show that DOP can be absorbed into the bloodstream through contact with PVC bags, especially during blood transfusions. In 1982, the U.S. National Cancer Institute found that DOP caused cancer in rats and mice, leading to restrictions on its use in various countries. For example, the U.S. Environmental Protection Agency has banned several phthalates, while Germany and Japan have imposed strict limits on DOP in consumer goods and medical devices.
According to European and American findings, DOP is more hazardous than DOA. The European Food Safety Authority (EFSA) sets stricter limits for DEHA compared to DEHP (another name for DOP). Director Zhou described the difference as: “DOA is like a thief, while DOP is a masked thief.†This metaphor illustrates the hidden risks associated with DOP, which may appear less harmful but still poses significant health concerns.
In addition, the reporter discovered that DOP is commonly used in domestic blood transfusion bags and medical supplies, raising further concerns about long-term exposure. While some countries have started replacing DOP with safer alternatives like citric acid esters and epoxy acid esters, China's standards lag behind, leading to challenges in exporting products and increased scrutiny of domestic goods.
The issue of outdated plasticizer regulations remains urgent, as it affects not only public health but also the competitiveness of Chinese manufacturers in the global market. With growing awareness of the potential dangers of certain plasticizers, there is a pressing need for updated guidelines to ensure the safety of food packaging, medical equipment, and consumer products.
Loader
LW300FN LW500FN LW600FN LW1200FN ZL50 wheel loader is an upgrade model released by XCMG on the basis of the classic 3T-level loader, featuring higher quality reliability, more economic operations, and better operation comfort.LW300FN is the most popular model of China 3t wheel loader With the features of maturity and reliability of the old model, LW300FN is improved all round, and leads in the same kind of product.
Performance Highlights:
Outstanding capability, with traction at ≥9t and breakout force at ≥13t.
High adaptability, with turning radius at 5, 165mm (tire center).
Market position:
Industry 3t single-model sales champion.
Excellent quality power and drive systems.
High maturity and reliability:
The 2600mm wheelbase features high mobility and flexibility and is applicable to all kinds of working sites.
The bucket is made of high strength material to realize high wear and impact resistance.
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The lengthened bucket bottom and the sharp bucket shape ease the penetration and realize higher bucket loading capacity.
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Xuzhou Xuqi Heavy Machinery Co., Ltd. , https://www.xqheavy.com