About NIL

Proficiency testing is a means of assessing the ability of laboratories
to competently perform specific tests and measurements.

China NIL Research Center for Proficiency Testing
(NIL for short hereafter) was founded on December 23, 2002.
It is a professional research center that mainly engages in laboratory
proficiency testing, measurement audits, nonstandard
method validation and QC materials.

Since founded, NIL has organized over 3000 proficiency
testing schemes (PTS). Among these PTS, there are over
1000 international PTS and over 700 international
laboratories from 71 countries and regions including
Europe, America, Australia, Africa, Asia, etc.

• 

  20+

  year

  Service experience

• 

  500+

  Annual capacity verification

• 

  10000+

  Service organization

• 

  70+

  Service countries and regions