National Measurement System Act 2007

Short title and commencement

“measuring instrument” means any instrument which is used to measure a physical measurable quantity;

“reference material” means any material whose properties are used for the calibration of measuring instruments or the assessment of a measuring method, or the assignment of values to materials;

“certified reference material” means a reference material which is issued by the National Measurement Standards Laboratory or any other person or body, recognized by the National Measurement

Standards Laboratory;

“Ministry” means the Ministry charged with the responsibility for standards and accreditation;

“measurable quantity” means the attribute of a phenomenon body or substance that may be distinguished qualitatively and determined quantitatively;

“Council” means the National Measurement Council established under section 13;

“National Measurement Standards Laboratory” means the laboratory established under section 9;

“Minister” means the Minister charged with the responsibility for standards and accreditation;

National Measurement System 7

“national measurement system” means the technical and organizational infrastructure related to measurement within

Malaysia that enables individuals and organizations in Malaysia to make measurements competently and accurately and which are traceable to the National Measurement Standards;

“measurement standard” means a measuring material, measuring instrument or measuring system intended to define, realize, conserve or reproduce a unit or one or more values of a quantity to serve as a reference in the measurement of that measurable quantity;

“National Measurement Standard” means a measurement standard or reference material established, maintained or caused to be maintained by the National Measurement Standards Laboratory or organization appointed under subsection 12(1) to serve as the basis for assigning values to a particular measurable quantity;

“base unit” means one of the seven units of measurement as set out in the First Schedule upon which the International System of Units is based;

“units of measurement” means a particular measurable quantity, defined and adopted by convention, with which other quantities of the same kind are compared in order to express their magnitudes relative to that quantity;

“derived unit” means a unit of measurement derived from a combination of base units;

“International System of Units” means the coherent system measurement units as described in subsection 4(2) and the abbreviation “SI” wherever refers to in this Act shall be recognized as referring to such International System of Units;

“coordinated universal time” means the time scale maintained by the National Measurement Standards Laboratory and the abbreviation “UTC” wherever refers to in this Act shall be recognized as referring to such coordinated universal time;

“Malaysian Standard Time” means the time as given by coordinated universal time plus eight hours based on the time zone of Longitude 120° East.

Act 675

The National Measurement Standards Laboratory

Laboratory shall be—

Establishment of the National Measurement Council

Power to make regulations

The Minister may, with the advice of the Council, by order published in the Gazette, amend, vary, alter, add to, delete from or substitute for the Schedule to this Act, and the Schedule as so amended, varied, altered, added to, deleted from or substituted for, shall come into force and effect and shall be deemed to be an integral part of this Act as from the date of such publication, or from such earlier or later date as may be specified in the order.

First Schedule

[Subsection 4(2)]

International System of Units (SI)

Part 1

BASE UNITS

Base units, Names and Symbols:

Quantity

Unit and Symbol

Definition length metre

(m)

The metre is the length of the path traveled by light in vacuum during a time interval of 1/299 792 458 of a second.

mass kilogram

(kg)

The kilogram is the unit of mass; it is equal to the mass of the international prototype of the kilogram.

time interval second

(s)

The second is the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.

electric current ampere

(A)

The ampere is that constant current which, if maintained in two straight parallel conductors of infinite length of negligible circular cross-section and placed 1 metre apart in vacuum, would produce between these conductors a force equal to 2 x 10–7 newton per metre of length.

thermo dynamic temperature kelvin

(K)

The kelvin is the fraction 1/273.16 of the thermodynamic temperature of the triple point of water.

National Measurement System 17

Quantity

Unit and Symbol

Definition luminous intensity candela

(cd)

The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 x 1012 hertz and that has a radiant intensity in that direction of (1/683) watt per steradian.

amount of substance mole

(mol)

1. The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012

kilogram of carbon 12.

2. When the mole is used, the elementary entities must be specified and may be atoms, molecules, ions, electrons, other particles or specified groups of such particles.

Part 2 1.

DERIVED SI UNITS

Derived SI units, Names and Symbols:

Quantity

Name

Symbol

Expressed in terms of SI base units

Expressed in terms of other SI units 1.1  Space and Time plane angle radian rad m . m-1=1

solid angle steradian sr m2 . m-2=1

Area square metre m2

m2

Volume cubic metre m3

m3

speed, velocity metre per second m/s m . s-1

acceleration metre per second squared m/s2

m - s-2

wave number reciprocal metre m-1

m-1

specific volume cubic metre per kilogram m3/kg m3 . kg-1

Act 675

Quantity

Name

Symbol

Expressed in terms of SI base units

Expressed in terms of other SI units

Frequency hertz

Hz s-1

angular velocity radian per second rad/s m . m-1 . s-1= s-1

angular acceleration radian per second squared rad/s2

m . m-1 . s-2= s-2 1.2  Mechanics lineic mass, linear density kilogram per metre kg/m kg . m-1

areic mass, surface density kilogram per square metre kg/m2

kg . m-2

density, mass density kilogram per cubic metre kg/m3

kg . m-3

Force newton

N m . kg . s-2

pressure, stress pascal

Pa m-1 . kg . s-2

N/m2

work, energy, quantity of heat joule

J m2 . kg . s-2

N . m power, radiant flux, energy flow rate, heat flow rate watt

W m2 . kg . s-3

J/s dynamic viscosity pascal second

Pa . s m-1 . kg . s-1

kinetic viscosity metre squared per second m2/s m2 . s-1

moment of force newton metre

N . m m2 . kg . s-2

surface tension newton per metre

N/m kg . s-2

volume flow rate cubic metre per second m3/s m3 . s-1

mass flow rate kilogram per second kg/s kg . s-1 1.3  Electricity and Magnetism current density ampere per square metre

A/m2

A . m-2

electric charge, quantity of electricity coulomb

C s · A electric potential, potential difference, electric tension, electromotive force volt

V m2 · kg · s-3 ·A-1

W/A electric field strength volt per metre

V/m m . kg . s-3 . A-1

National Measurement System 19

Quantity

Name

Symbol

Expressed in terms of SI base units

Expressed in terms of other SI units electric charge density coulomb per cubic metre

C/m³

m-3 . s . A electric flux density coulomb per square metre

C/m-2

m-2 . s . A electric resistance ohm

Ω m² . kg . s-3 . A-2

V/A capacitance farad

F m-2 . kg-1 . s4 . A2

C/V electric conductance siemens

S m-2 . kg-1 . s3 . A2

A/V magnetic flux weber

Wb m2 . kg . s-2 . A-1

V . s magnetic flux density tesla

T kg . s-2 . A-1

Wb/m²

magnetic field strength ampere per metre

A/m

A . m-1

Inductance henry

H m² . kg . s-2 . A-2

Wb/A permeability henry per metre

H/m m . kg . s-2 . A-2

Permittivity farad per metre

F/m m-3 . kg-1 . s4 . A2 1.4  Heat celsius temperature degree celsius ºC

K heat flux density, irradiance watt per square metre

W/m2

kg . s-3

heat capacity, entropy joule per kelvin

J/K m2 . kg . s-2 . K-1

specific heat capacity, specific entropy, massic heat capacity joule per kilogram kelvin

J/(kg . K)

m2 . s-2 · K-1

specific energy joule per kilogram

J/kg m2 . s-2

thermal conductivity watt per metre kelvin

W/(m . K)

m . kg . s-3 . K-1

energy density joule per cubic metre

J/m3

m-1 . kg . s-2 1.5  Physical Chemistry and Molecular Physics concentration (of amount of substance)

mole per cubic metre mol/m3

mol . m-3

molar energy joule per mole

J/mol m2 . kg . s-2 . mol-1

molar entropy, molar heat capacity joule per mole kelvin

J/(mol . K)

m2 . kg . s-2 K-1. mol-1

Act 675

Quantity

Name

Symbol

Expressed in terms of SI base units

Expressed in terms of other SI units 1.6  Radiation and Light

Luminance candela per square metre cd/m2

cd . m-2

refractive index

(the number)

one 1 1

luminous flux lumen lm cd cd . sr

Illuminance lux lx m-2 . cd lm/m2

radiant intensity watt per steradian

W/sr m2 . kg . s-3

Radiance watt per square metre steradian

W/(m2 . sr)

kg . s-3 1.7  Ionizing Radiations activity (of a radionuclide)

becquerel

Bq s-1

absorbed dose, specific energy

(imparted), kerma gray

Gy m2 . s-2

J/kg dose equivalent, ambient dose equivalent, directional dose equivalent, personal dose equivalent, organ equivalent dose sievert

Sv m2 . s-2

J/kg exposure (x and γ rays)

coulomb per kilogram

C/kg kg-1 . s . A absorbed dose rate gray per second

Gy/s m2 . s-3

2. The derived units shall include any other units which may be expressed algebraically in terms of SI base units or in terms of a combination of the

SI base units with other derived units by means of mathematical symbols of multiplication and division.

National Measurement System 21

Part 3

MULTIPLES AND SUBMULTIPLES OF THE SI UNITS

The names and symbols of the multiples and submultiples of the SI units:

Factor

Prefix

Symbol 1024

yotta

Y

1021

zetta

Z

1018

exa

E

1015

peta

P

1012

tera

T

109

giga

G

106

mega

M

103

kilo k 102

hecto h 101

deca da 10-1

deci d 10-2

centi c 10-3

milli m 10-6

micro µ 10-9

nano n 10-12

pico p 10-15

femto f 10-18

atto a 10-21

zepto z 10-24

yocto y

Act 675

Second Schedule

[Subsection 4(3)]

Other permissible units of measurement

Part 1

Units accepted internationally for use with the International System of

Units (SI):

Name

Symbol

Value in SI units minute min 1 min = 60 s hour h 1 h = 60 min = 3600 s day d 1 d = 24 h = 86 400 s degree º 1º = ( л/180) rad minute

,

1’ = (1/60)° = (л /10 800) rad second

,,

1’’ = (1/60)’ = (л /648 000) rad litre l, L

1 l = 1 dm3 = 10-3 m3

tonne t 1 t = 103 kg neper

Np 1 Np = 1

bel

B

1 B = (1/2) In 10 (Np)

Part 2

Units accepted for use with the International System of Units (SI), whose values in SI units are obtained experimentally—

Name

Symbol

Value in SI Units

Note electronvolt eV

1 eV = 1.602 17653 (14) x 10-19 J

(a)

unified atomic mass unit u 1 u = 1.660 53886 (28) x (10)-27 kg

(b)

astronomical unit ua 1 ua = 1.495 978 706 91 (6) x 1011 m

(c)

The unified atomic mass unit is also called the dalton (Da), in the field of biochemistry.

National Measurement System 23

Part 3

Units of measurement and denominations which may be used temporarily:

Name

Symbol

Value 1.

Area barn

Its use is authorized only in atomic and nuclear physics.

b 1 b = 100 fm2 = 10-28 m2 2.

Dynamic viscosity poise

P

1 P = 0.1 Pa . s = 10-1 Pa . s centipoises cP

1 cP = 1 mPa . s = 10-3 Pa . s 3.

Kinematic viscosity stokes

St 1 St = 100 mm2/s = 10-4 m2/s centistokes cSt 1 cSt = 1 mm2/s = 10-6 m2/s 4.

Activity

(of a radioactive source)

curie and the multiples and sub-multiples of the curie

Ci 1 Ci = 37 GBq = 3.7 x 1010 Bq 5.

Absorbed dose rad and the multiples and submultiples of the rad rad 1 rad = 0.01 Gy = 10-2 Gy 6.

Exposure röntgen and the multiples and submultiples of the röntgen

R

1 R = 0.258 mC/kg = 2.58 x 10-4 C/kg 7.

Pressure millimetre of mercury

(Its use is authorized only in specialized fields)

mmHg 1 mmHg = 133.322 Pa bar and the multiples and submultiples of the bar bar 1 bar = 100 kPa = 105 Pa 8.

Plane angle revolution (turn)

R

1 r = 2л rad 9.

Vergency of optical systems diopter 1 diopter = 1 m-1

10. Area of farmland and estates are a 1 a = 100 m2 = 102 m2

hectare ha 1 ha = 0.01 km2 = 104 m2

Act 675

Name

Symbol

Value

11. Metric carat metric carat

(Its use is authorized only for indicating the mass of pearls and precious stones)

ct 1 ct = 0.2 g = 2 x 10-4 kg

12. Length ångström

Å

1 Å = 0.1 nm = 10-10 m nautical mile 1 nautical mile = 1852 m knot 1 nautical mile per hour

= (1852/3600) m/s

13. Volume

(forestry management and timber trade)

stere st 1 st = 1 m3

14. Mass quintal q 1 q = 100 kg = 102 kg

15. Force kilogram-force kgf 1 kgf = 1 kp = 9.806 65 N kilopond and its decimal multiples and submultiples kp

16. Pressure standard atmosphere atm 1 atm = 101.325 kPa = 1.013 25 x 105 Pa technical atmosphere at 1 at = 98.066 5 kPa = 0.980 665 x 105 Pa torr

Torr 1 Torr = 101 325 Pa

760

metre of water mH2O

1 mH2O = 9.806 65 kPa = 9.806 65 x 103 Pa

17. Work, energy, quantity of heat kilogram force metre =

kilopond metre kgf . m kp . m 1kgf . m=1kp . m=9.80665J calorie and its decimal multiples and submultiples cal 1 cal = 4.186 8 J

18. Power metric horsepower (cheval-vapeur)

1 metric horsepower =

0.735 498 75 kW=735.498 75W

19. Luminance stilb sb 1 sb = 10 kcd/m2 = 104 cd/m2

National Measurement System 25

Third Schedule

[Subsection 13(4)]

Meetings

1. (1) The Council shall meet at least once a year at such time and place as may be appointed by the Chairman.

Council not less than fourteen days before the date of the meeting.

Deputy Chairman, a member of the Council elected by the members of the

Council present shall preside over the meeting.

Tenure of office

2. A member of the Council shall hold office for a term not exceeding three years and is eligible for reappointment.

Revocation of appointment and resignation

3. (1) The Minister may, at any time, revoke the appointment of any member of the Council without assigning any reason for the revocation.

Vacation of office

4. The office of a member of the Council shall be vacated—

Act 675

Allowance

5. Members of the Council may be paid such allowance as the Minister may determine.

Council may invite others to meetings

6. (1) The Council may invite any person to attend any meeting or discussion of the Council for the purpose of advising it on any matter under discussion, but any person so attending shall have no right to vote at the meeting or discussion.

Minutes

7. (1) The Council shall cause minutes of all its meetings to be maintained and kept in a proper form.

National Measurement System 27

Procedure

8. Subject to this Act, the Council shall determine its own procedure.

Member to devote time to business of Council

9. Every member of the Council shall devote such time to the business of the Council as is necessary to discharge his duties effectively.

Secretariat of Council 10.

The Secretariat of the Council shall be the National Measurement

Standards Laboratory.

Act 675

Act 675

LIST OF AMENDMENTS

Amending law

Short title

In force from

– NIL –

National Measurement System 29

Act 675

LIST OF SECTIONS AMENDED

Section

Amending authority

In force from

–NIL –