According to the data published on the website of the local market supervision bureaus, most of the product quality supervision and random inspections of student supplies are qualified, and the unqualified items are mainly concentrated in the following categories.
1. Identification. Some products do not have applicable age and warning labels, and do not meet the standard requirements; the factory name and address do not match the business license; there is no standard number and other signs.
2. The upper cap of the pen is safe. The national standard “GB 21027-2007 General Requirements for the Safety of Student Supplies” stipulates that the safety of the upper cap of writing pens, markers, correction pens, and watercolor pens should at least meet the size of the cap (the child cannot swallow it if it is large enough) and the ventilation area of the cap (Leave a small hole, if you accidentally swallow it will not suffocate) or the pen cap has air circulation (there are hooks and other objects that can maintain a certain amount of air circulation when accidentally swallowed) one of the three requirements. To prevent the pen cap from being swallowed by a minor by mistake, it can also ensure sufficient ventilation, effectively avoid suffocation which will quickly cause damage to the body, gain more rescue time in the event of an accident, and protect the personal safety of minors. However, substandard products fail to meet this requirement, and there is a safety risk.
3. The sizing degree of this booklet. In layman’s terms, it is whether the pen and paper will be blurred. If the sizing degree is too small, the writing will be blurred. If the sizing degree is too large, the handwriting dries slowly. When you finish writing, close the notebook and the words will be easily blurred. No sizing agent is added to the inner core paper during the papermaking process or the added amount is too small, which will cause the ink to diffuse or penetrate when the inner core paper is written.
The picture on the left has a large sizing degree, and the picture on the right has a small sizing degree, so writing is easy to blur the paper
4. Brightness (whiteness) of this book . The main reason for the unqualified brightness (whiteness) of this book is that the manufacturer has added a large amount of fluorescent whitening agent during the production process. Generally speaking, the higher the content of the fluorescent whitening agent, the better the whiteness of the paper in this book. However, the whiter the paper, the stronger the light reflected under the fluorescent lamp, which is likely to cause visual fatigue. Long-term exposure will severely adversely affect vision and cause myopia.
The brightness (whiteness) of the paper on the right is higher than that on the left
5. The inner core of this booklet is quantified. Workbooks with unqualified inner core paper quantifications are generally thinner, and are easily damaged during long-term writing and use of the workbook. The basis weight of the inner core paper is mainly related to the base paper. If the inner core paper base paper selected by the manufacturer of the operation cost is too thin, the basis weight index of the operation cost will be unqualified.
6. Edges and tips of pencil sharpeners and pencil sharpeners . The standard stipulates that the tip of stationery scissors and blades should be arc-shaped, not sharp-pointed. For pencil sharpeners, pencil sharpeners, etc., where functional sharp edges and sharp tips are essential for functionality, warnings should be set, and there should be no other touchable functional sharp edges or tips.
Pencil sharpener
7. A glue the free aldehyde. Formaldehyde is a colorless, strong irritating gas, which can cause eyes to cry, cornea and conjunctiva congestion and inflammation, skin allergies, nasopharyngeal discomfort, cough, acute and chronic bronchitis and other respiratory diseases. It can also cause nausea, vomiting, and gastrointestinal diseases. Dysfunction, and even death in severe cases. The reason for the excessive free formaldehyde may be that the production process of the product has not been handled properly, and the appropriate process has not been used to reduce the content of free formaldehyde.
3. When buying a pen, check whether there is an air channel on the cap to prevent students from suffocating after swallowing it by mistake.
4. When purchasing this book, it is recommended not to buy products that are too white to avoid adverse effects on eyesight caused by long-term use.
5. Try to buy stationery without pungent odor and fragrance.