Metrology Act (Amendment of First Schedule) Regulations, 2010

L.N. 110 of 2010

METROLOGY ACT

(CAP. 454)

Metrology Act (Amendment of First Schedule) Regulations, 2010

IN exercise of the powers conferred by article 19(2) of the

Metrology Act, the Minister of Finance, the Economy and

Investment, on the advice of the Malta Standards Authority, has made

the following regulations:-

(1)

The title of these regulations is the Metrology Act

(Amendment of First Schedule) Regulations, 2010 and they shall be

read and construed as one with the First Schedule to the Metrology

Act, hereinafter referred to as "the First Schedule".

(2) These regulations implement the requirements of Directive

2009/3/EC of the European Parliament and of the Council of 11

March 2009 amending Council Directive 80/181/EEC on the

approximation of the laws of the Member States relating to units of

measurement.

Part 1 of the First Schedule shall be amended as follows

(a)

in point 1.1, for the paragraph entitled "Unit of

thermodynamic temperature" there shall be substituted the

following

"Unit of thermodynamic temperature

The kelvin, unit of thermodynamic temperature, is

the fraction 1/273,16 of the thermodynamic temperature of

the triple point of water.

This definition refers to water having the isotopic

composition defined by the following amount-of-substance

ratios: 0.00015576 mole of 2 H per mole of 1 H,

0.0003799 mole of 17 O per mole of 16 O and 0.0020052

mole of 18 O per mole of 16 O.";

(b)

in point 1.1.1, for the title there shall be substituted

the following

B 1223 B 1223

"1.1.1 Special name and symbol of the SI derived

unit of temperature for expressing Celsius temperature";

(c)

in point 1.2, for the title there shall be substituted

the following

"1.2. SI derived units";

(d)

point 1.2.1 shall be deleted; and

(e)

for points 1.2.2 and 1.2.3 there shall be substituted

the following

"1.2.2. General rule for SI derived units

Units derived coherently from SI base units are

given as algebraic expressions in the form of products of

powers of the SI base units with a numerical factor equal to

1.

1.2.3. SI derived units with special names and

symbols

Quantity

Unit

Expression

In terms of

In terms of SI base

Name

Symbol

other SI units

units

Plane angle

m  m -1

rad

radian

Solid angle

m 2  m -2

steradian

steradian

sr

Frequency

s -1

hertz

Hz

m  kg  s -2

newton

N

Pressure,

N  m -2

m -1  kg  s -2

pascal

Pa

Energy, work;

quantity of

m 2  kg  s -2

joule

J

N  m

Power ( 1 ),

J  s -1

m 2  kg  s -3

radiant flux

watt

W

Quantity of

electricity,

electric

charge

coulomb

C

s  A

Electric

potential,

potential

difference,

electromotive

W  A -1

m 2  kg  s -3  A -1

volt

V

Electric

V  A -1

m 2  kg  s -3  A -2

resistance

ohm



Conductance

A  V -1

m -2  kg -1  s -3  A 2

siemens

S

Capacitance

C  V -1

m -2  kg -1  s -4  A 2

farad

F

Magnetic flux

m 2  kg  s -2  A -1

weber

Wb

V  s

Magnetic flux

Wb  m -2

kg  s -2  A -1

density

tesla

T

Inductance

Wb  A -1

m  kg  s -2  A -2

henry

H

Luminous

flux

lumen

lm

cd  sr

cd

Illuminance

lm  m -2

m -2  cd

lux

lx

Activity (of a

s -1

radionuclide)

becquerel

Bq

Absorbed

dose, specific

energy

imparted,

kerma,

absorbed dose

J  kg -1

m 2  s -2

index

gray

Gy

Dose

J  kg -1

m 2  s -2

equivalent

sievert

Sv

Catalytic

mol  s -1

activity

katal

kat

( 1 ) Special names for the unit of power: the name volt–ampere

(symbol "VA") when it is used to express the apparent power of

alternating electric current, and var (symbol "var") when it is used to

express reactive electric power. The "var" is not included in GCPM

resolutions.

Units derived from SI base units may be expressed in terms of the

units listed in part I.

In particular, derived SI units may be expressed by the special names

and symbols given in the above table; for example, the SI unit of

dynamic viscosity may be expressed as m –1  kg  s –1 or N  s  m –2 or

Pa  s.".