谷歌梯子教程 Enroll in Kits

佛跳墙旧版2025

NAPT is the most trusted name in the metrology community for providing administration, development, software tools, and support for interlaboratory comparisons.

Full-Service Kits

Inter-Laboratory Comparisons & Proficiency Testing

NAPT offers over 100 kits and the largest selection of artifacts for calibration/measurement of any provider.

View Our Kits

Enroll

Custom Proficiency Tests

Design & Management of Intra-Laboratory Testing

Does your lab require specialized testing? Let the NAPT team design a custom in-house proficiency test.

谷歌梯子

With Our State-of-the-Art Software

Manage Your Own Testing Program

QMS Navigator is the most comprehensive statistical software and management tool for creating your own intra-laboratory comparisons.

Learn More

Chrome浏览器用梯子后无法访问Google、YouTub(转载 ...:2021-3-12 · 苹果电脑，用的梯子可靠稳定。搭上梯子后自带的Safari浏览器可伡上Google、YouTube、Twitter等等各种网站，说明网络环境本身没有问题。但是用Chrome浏览器上述三个网站“无法访问此站”，而且是那种输入网址后一回车立刻就显示无法访问，都没有尝试连接一会再提示错误。

Why Choose NAPT?

NAPT dares you to compare its services against other PT providers. You'll find NAPT rises to the top every time.

20+ Years of Experience
Largest Artifact Selection
Industry-Leading Software
Convenient Online Portal
Full-Time Staff

View Our Kit Selection

Compare NAPT Services

20+ Years of Experience
谷歌梯子
Industry-Leading Software
Convenient Online Portal
Full-Time Staff

Trusted Worldwide

Since 1996

View All Members