PMP Provides Reliable QualityControlling prohibited substances as an example

For the management and control of raw materials, PMP’s affiliated company sells various related testing instruments. Therefore, PMP has a good understanding of related testing methods and precautions. There are more than 500 billion pcs products in the global market made by PMP. PMP strictly controls the quality of products, which is worthy of the trust of users worldwide


Controlling prohibited substances as an example

Elastomeric materials used in the wearable device are in long-term contact with the skin directly, so the prohibited, regulated and related substance for this application is more than 1000 kinds. As a result, material PASS FDA doe not mean it does not contain any prohibited and restricted SVHC (Substance of very high concern)


Even if elastomeric material passes the FDA, it may still contain other banned substances. Such as Carcinogen PAHs (up to 18 kinds of them).

PMP products are strictly controlled those substances less than 1ppm, refer to App. (1)。

App (1): The sum of 18 PAHs does not exceed 1ppm. Materials can be put in the mouth or materials are in contact with the skin for a long time (more than 30 seconds) in toys.

App (2): The sum of 18 PAHs does not exceed 5ppm. Prolonged contact with the skin (more than 30 secs) or repeated contact with skin and does not belong to the 1st category.

App (3): The sum of 18 PAHs does not exceed 20ppm. Contact with skin less than 30 secs (short-term contact) and does not belong to the 1st & 2nd categories.

Controlling prohibited substances as an example

Take the same sample and divide into 2 pieces, and do PAHs & FDA test at the same time.

    1. PAHs test:Total PAHs are 3.412ppm,which is greater than 1ppm,which is judged as FAIL (Fig.1-A)。
    2. FDA test:Will be PASS (Fig.1-B)。