Various Examined Product Detail 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.

Please complete the form at the bottom of this page to download the product test report in PDF format.
This report is only available for products listed in the catalog with the indicated mark.
Before filling out the form, please have the following information ready: the Cat. No. (product number), the Lot No. from the bag or box, and a receipt or proof of purchase date.

For products not listed in the catalog (such as custom products),please contact us directly. A sales representative will assist you individually.

Various Test Report Issuance Application Form

Please complete the required information in the form below. (* denotes mandatory fields.)

※ Certifiable items may vary by product.
Please refer to the marks on the respective product pages for details.
If you have any questions, feel free to contact us via the “Contact Us” page, or reach out to us by email or phone listed at the bottom of the page.

※ For products purchased in Japan, please apply through the Japanese page.
(※日本国内で購入いただいた製品については日本語ページからお申し込みください)