Color reaction with acetylacetone is used to determine the formaldehyde content in fabrics.
织物中甲醛的测定大多采用乙酰丙酮的显色反应。
The formaldehyde content is relatively high in dry aquatic products and its detection rate is 100%.
本研究同时对其它水产品甲醛含量进行研究,发现水产干制品中甲醛含量较高,检出率为100%。
This article also discussed the visual semi-quantitative rapid detection method of formaldehyde content.
探讨了甲醛含量的可视化半定量快速检测方法。
You can rest assured to buy the products marked EO which means the formaldehyde content is less than 0.5%.
而像这样贴有环保EO(配音:E零)标识的,也就意味着它的甲醛含量低于0.5%,您可以放心购买。
Formaldehyde content has become an important safety indicator in Pollution Monitoring of living room, food and textiles.
甲醛含量已成为当今居室、食品、纺织品中污染监测的一项重要安全指标。
The adhesive has advantage of low free formaldehyde content, good viscosity stability and low temperature storage stability.
该胶粘剂具有粘度高,游离甲醛低,稳定性好的优点。
Plasma treatment followed by the curing can further decrease the free formaldehyde content and increase the angle of crease recovery.
等离子体处理后再经焙烘,可进一步减少棉织物上游离甲醛含量,提高折皱回复角。
The water resistant low formaldehyde content urea-formaldehyde resin was prepared by adding hydrophobic resin and formaldehyde collecting agent.
采用加入疏水性树脂和甲醛捕捉剂的方法对脲醛树脂进行了改性。
A method, combined with spectrophotometry, for determining formaldehyde content of interior architectural coatings with acetylacetone as developer was proposed.
提出了一种使用乙酰丙酮作显色剂、结合分光光度法检测内墙涂料中甲醛含量的方法。
In addition, the solid-wood composite floor board is adhered by using the adhesive with relatively lower formaldehyde content so as to guarantee safe use of a user.
此外本发明采用甲醛含量较低的胶粘剂粘贴,保证了用户的安全使用。
Environmentally friendly products - all materials comply with national environmental standards, very low formaldehyde content, product also features natural wood aroma.
环保产品——所有材料符合国家环保标准,甲醛含量极低,产品还具有天然木质的芳香。
The experimental result showed that the ideal stiffening effect, lower formaldehyde content and less odor on the fabric could be obtained under optimal process conditions.
试验结果表明,采用优化的各项工艺参数,不但能达到优良的硬挺效果,还能降低布面游离甲醛含量,减少刺激性气味。
Therefore, Mitotic index can be used as a reference for monitoring the formaldehyde content in the environment. Onions can be applied to formaldehyde pollution monitoring.
根尖有丝分裂指数可以作为监测环境中甲醛含量的参考指标,应用于甲醛污染的监测。
A series of color test are carried out to determine the influence of developing result at different time after preparing the acetylacetone on formaldehyde content measuring.
文中对乙酰丙酮在配制后不同时间的应用作了一系列显色试验,以探讨试剂在不同时间显色结果对甲醛含量测试结果的定量影响。
Free formaldehyde content in resin is reduced through beetle modification, and the toxicity is thus reduced. The toughness of resin has been increased after adding modifier.
通过对脲醛树脂的合成改性,降低了树脂中游离甲醛含量,减小了毒性,加入改性剂后增加了树脂韧性。
Because the high concentration formaldehyde is very dangerous, so it will be controlled strictly. Some methods were recommended to reduce the formaldehyde content in leather.
因高浓度甲醛具严重危害性,故须严格控制,研究发现多种方法可显著降低革中甲醛含量。
Second, the survey of the formaldehyde content of the glue, glue the less formaldehyde content in the lower floors and a new generation of double-locking just solved the problem.
二是铺装时对胶水的甲醛含量的规定,胶水用的越少甲醛含量越低,而新一代双锁扣地板刚好解决了这一问题。
Product quality supervision and inspection center also has been checked, and the formaldehyde content is zero Clothes line very safe and comfortable, ideal for delicate baby skin.
商品已经过质量监督检查中心检查,甲醛含量为零,安全舒服,非常适合宝宝柔嫩的皮肤。
The formaldehyde in fur was extracted by artificial perspiration solution and the formaldehyde content in the extracted liquor was determined by acetylacetone spectrophotometric method.
将毛皮中的甲醛用人造汗液萃取后,用乙酰丙酮分光光度法检测,可以定量检测分析毛皮中甲醛的含量。
The content of formaldehyde is a compulsory examination item in textile inspection, so it is very necessary to understand related factors that affect the determination of formaldehyde content.
甲醛含量作为纺织产品检验工作中的一项强制性考核项目,了解和掌握影响其测定的相关因素是十分必要的。
The formaldehyde content of wort can be decreased if the malt, adjunct and enzyme was selected with low formaldehyde content and low polyphenol index, and the boiling degree was controled reasonably.
选择甲醛含量和多酚聚合指数较低的麦芽、辅料及酶制剂,糖化控制合理的煮沸强度,可以减少麦汁中的甲醛含量。
This paper introduced a preparation of modified polyvinyl formal adhesive. The adhesive has advantage of low free formaldehyde content, good viscosity stability and low temperature storage stability.
介绍了聚乙烯醇缩甲醛改性胶粘剂的制备方法。该胶粘剂具有粘度高,游离甲醛低,稳定性好的优点。
In this paper, discussion and investigation were given to the synthetization of etherified hexmethylol melamine with low formaldehyde content. Also , were developed rational technological conditions.
本文介绍了低甲醛六羟树脂的研制过程,对该树脂进行了合成路线探讨和研究,设计了合理的工艺条件。
Practice results indicated that the content of formaldehyde in resin binder can be controlled less than1.8%and the mechanical properties completely satisfied the requirement of production.
生产应用结果表明,该树脂粘结剂中甲醛含量可控制在1.8%以下,力学性能完全可以满足生产要求。
However, formaldehyde does harm to human health. Therefore, the content of formaldehyde in cosmetics should be determined.
但甲醛对人体健康的危害很大,因此需要对化妆品中的甲醛含量进行检测。
Improvement on synthesis process and additives was made to develop a new type of resin binder with low content of formaldehyde, high strength and low costs.
为生产出甲醛含量低、强度高、成本低和工艺性强的粘结剂,通过改进合成工艺及添加助剂,研制出了一种低游离醛的树脂粘结剂。
The content of formaldehyde(HCHO)is an important assessed value in the state compulsory standard GB18401-2003. Therefore, inspecting accurately the HCHO content in textiles is very important.
甲醛含量是国家强制性标准GB18401-2003中的一个重要考核指标,准确检测纺织品上的甲醛含量十分重要。
Through analysis the causes of the free formaldehyde came from particle board, the article points out some methods to reduce the content of free formaldehyde.
通过分析刨花板中游离甲醛产生的原因,提出了几种降低游离甲醛含量的方法。
In this paper a potentiometric titration was used to improve the neutral sodium sulfite method for determining the content of formaldehyde, and the accuracy and influential factors were discussed.
采用电位滴定法改进了测定甲醛含量的中性亚硫酸钠法,并对其准确度和影响因素进行了探讨。
In this paper a potentiometric titration was used to improve the neutral sodium sulfite method for determining the content of formaldehyde, and the accuracy and influential factors were discussed.
采用电位滴定法改进了测定甲醛含量的中性亚硫酸钠法,并对其准确度和影响因素进行了探讨。
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