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Don’t just focus on Class C for sanitary napkins!
Are Sanitary Napkins Of Class C Unsafe?
“Class A, B, and C” are the safety level classifications for textiles in the “GB18401-2010 National Basic Safety Technical Specifications for Textile Products”. But sanitary napkins are not textiles, but disposable sanitary products. Sanitary napkins implement the “GB15979-2002 Hygiene Standards for Disposable Sanitary Products” or “GB/T8939-2018 Sanitary Napkins (Pads)”. These standards have strict requirements on sanitary indicators, chemical residues, and microbial content. Classifying sanitary napkins as textiles and “Class C” is a misunderstanding of the standards. When faced with this information, we must be rational. You can obtain accurate information by consulting national standards or industry information.
We Also Need To Pay Attention To These!
In addition to the most common basic concerns such as sanitary napkin material, length, breathability index, and blood absorption, there are several easily overlooked areas that we need to pay attention to!
PH value of sanitary napkins
The PH value of sanitary napkins is 4.0
The internationally stipulated PH value range of sanitary napkins is: 4.0~9.0.
Under normal circumstances, the PH value of women's private parts is: 3.8~4.5.
PS: Age, sexual intercourse, ovulation period and other factors affect the PH value of private parts.
The PH value of human blood is 7.35~7.45. During menstruation, due to the influence of menstrual blood and secretions, the PH value of private parts may be close to 7.
In summary, 4.0 
Too high or too low will cause irritation to the skin, such as dry skin, redness and swelling.
We Also Need To Pay Attention To These!
1. Formaldehyde content
The less formaldehyde content in sanitary napkins, the better. Long-term exposure to formaldehyde will cause harm to human health. National standards stipulate that the formaldehyde content of sanitary napkins should be ≤75MG/KG.
2. Total colony count
The less total colony count, the better. The total bacterial colony count of ordinary sanitary napkins should be ≤200CFU/G, and the total fungal colony count should be ≤100CFU/G. The bacterial colony count of disinfection-grade sanitary napkins should be ≤20CFU/G, and no fungal colonies should be detected when leaving the factory.
3. Fluorescent agents, plasticizers, and heavy metals
The relevant content must be clearly specified
The international standard for sanitary napkins "GB/T8939-2008 Sanitary Napkins (including Sanitary Pads)" does not make clear provisions for fluorescent whitening agents, plasticizers, and heavy metals in sanitary napkins. Both their content and detection methods are in a relatively blank state. Among them, some plasticizers (namely "phthalates") are inexpensive and can be absorbed through skin contact. In severe cases, there may be risks such as infertility and cancer.
The pH value, formaldehyde content, and total colony count can all be obtained through the quality inspection report provided by the merchant/manufacturer.
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