Various Test Report Issuance

We will issue various test reports

Our most Watson branded products’ grade is Nuclease-Free. In terms of the products domestically manufactured, we are the first company who actualized our products with Nuclease-free.We are also able to provide the customized products with Nuclease-Free grade. In addition, we offer products that are guaranteed to be pyrogen-free, sterile, or sterilized. Test reports can be issued for each batch of these products upon request.

Nuclease-Free (Human DNA/ RNase/ DNase-Free) Mark

RNase/DNase Measurement Test Methods

We place the test object and RNase/DNase-FREE water in a sealed container and perform shaking extraction.
The extracted solution is evaluated using a detection kit to confirm that it is below the detection limit value.

Human DNA Measurement Test Method

We conduct amplification confirmation by real-time PCR using primers to amplify human genomic DNA from the human DNA measurement samples extracted by shaking from the product. We confirm that the estimated DNA concentration from the measurement sample is 1 pg/µL or less.
Pyrogen-Free Mark

Endotoxin Testing Method

We confirm that it is 0.05 EU/mL or less using the endotoxin test colorimetric method, referring to the Japanese Pharmacopoeia.
Irradiation Sterilization Mark

Irradiation Sterilization Method

Based on in-house test results, we conduct manufacturing management of sterilized products.
Sterility Test Mark

Sterility Test Method

We prepare media for tube culture and use it for liquid culture evaluation of products and product bags.
Cultures are incubated at 30-35 °C. Results are assessed by confirming microbial growth 7 and 14 days after incubation.
Ethylene Oxide Gas Sterilization Mark

Ethylene Oxide Gas Sterilization Method

We confirm internally that there is no bacterial growth (negative) in the culture test.
In an environment with sterilization temperature of 50 °C and humidity of 50%, 20% EO is applied for 5-6 hours, followed by air replacement.

About Test Report Issuance

The products with the above label will have test reports issued for each batch upon request.

The issuance of test reports may take some time, but please be patient.
We generally issue test reports in paper format, but if you prefer an electronic file, please indicate so in the inquiry form.
On Saturdays, Sundays, and national holidays, as well as during the year-end and New Year holidays and the summer vacation period, responses may be delayed until the next business day.Depending on the content, it may take some time to respond. Thank you for your understanding in advance.
Depending on the nature of the inquiry, we may respond via written correspondence, telephone, fax, etc., rather than email.

Various Test Report Issuance Application Form

Please fill in the required information in the form below.(* Please make sure to fill in all required fields.)
Additionally, we also accept requests by phone.

* The items that can be verified may vary depending on the product. Please check the mark attached to the product introduction page for confirmation.If you have any questions, please feel free to fill in the ‘Inquiry Details’ section.