MARINE METROLOGY

Marine Metrology[ DATE : DEC 09, 2013 ]

The laboratory is accredited by China National Accreditation Service for Conformity Assessment (CNAS) to ISO/IEC 17025:2005 General Requirements for the Competence of Testing and Calibration Laboratories for the competence of calibration as shown below.

number

Instrument

CMC(k=2)

1

Bucket Thermometer

0.04℃

2

Electrode type salinometer

0.001

3

CTD Measuring System

temperature:0.002℃

conductivity:0.003mS/cm

deep:0.015%

4

sound velocimeter

temperature:0.002℃

conductivity:0.003mS/cm

deep:0.015%

velocity:0.005 m/s

5

The gravitational acceleration wave buoy (sensor)

tide level:11mm

wave period:0.16s

6

Float-type tide gauge

3mm

7

Acoustic tide gauge

3mm

8

Pressure tide gauge

(0~8)m:3mm

(0.1~6)MPa:0.02%

9

Seawater pH analyzer

0.01

10

Seawater turbidity analyzer

5%

11

Seawater nutrients  analyzer

Nitrate:0.3μmol/L

Nitrite:0.07μmol/L

Phosphate:0.04μmol/L

Ammonium - nitrogen salt:0.2μmol/L

Silicate:1.1μmol/L

12

Meteorological liquid-in-glass thermometers

0.04℃

13

Water Bath

uniformity:0.001℃;

stability:0.001℃