सीएसआईआर-राष्ट्रीय भौतिक प्रयोगशाला

CSIR-National Physical Laboratory

Brief details of Recent Key-Comparisons Participated / Piloted

  • Pilot laboratory for conducting the international inter-laboratory comparison (ILC) on volume (micropipettes) and Glass Scale among the South Asian Association for Regional Cooperation (SAARC) National Metrology Institute (NMIs) under the SAARC-PTB project to strength the quality infrastructure in SAARC region. This inter-comparison is under process (2019-2022).
  • Participated in the international key comparison (APMP.M.FF-K4.2.2021) on volume (micro-pipettes) organized among Asia Pacific Metrology Program (APMP) NMIs (2021).
  • Temperature and Humidity Metrology has participated in different inter-comparisons as listed in the Table below:

S. No.

Key Comparison

Parameter & range

Remarks/ Comments

1.

SADC-Met, 2000-02

LIGT, 0 to 50 °C

Satisfactory completed

2.

APMP-S-T7, 2006-07

S-TC, 0 to 1100 °C

Satisfactory

3.

APMP-KC-3, 2000-01

Hg, TPW, Ga, Zn by SPRT

Satisfactory completed

4.

APMP-TK-4, 2005-06

Al and Ag by SPRT

Satisfactory completed

5.

APMP-T-Pt/Pd, 2012-13

Pt/Pd TC, Co-C point   (1324 °C)

Successfully Completed

6.

APMP-T-S8

LIGT, -40°C to 250 °C

Under process

7

APMP-T-S16

Type-R TC upto 1600 oC

Under process

8

APMP-T-K9

SPRT on ITS-90 fixed points, -189 oC (TP Ar) to 420 oC (FP Zn)

Under process

9

APMP-TS14

Relative Humidity (10 % to 95 %)

Under process

Force and Hardness Metrology Section

  • The different inter-comparisons participated in the force and hardness parameters are listed in the Table below:

 List of Inter-comparisons Participated:

Parameter

Identifica-tion of inter-comparison

Participated NMIs

Range

Date of Partici-pation

Date of Report

CMC

Force

PTB-NPL

PTB, Germany; NPLI, India.

10-100 kN,   100-1000 kN

2010

Sep. 2011

± 0.002%

± 0.009%

Hardness

APMP.MH-S3

NIMT, Thailand; PTB, Germany; SCL, Hong Kong; KRISS, Korea; NPLI, India.

HRA

HRB

≤60

>60

October 2010

May 2012

0.3 HRA

0.6 HRB

0.5 HRB

Force

APMP. M.F.-K2