Chapter 454 – Metrology Act

METROLOGY

CHAPTER 454

METROLOGY ACT To repeal and replace the Weights and Measures Ordinance.

15th September, 2006 ACT XXV of 2002, as amended by Act XV of 2006; Legal Notices 427 of 2007, 110 of 2010 and 190 of 2020 ; and Act VI of 2011 and XXI of 2020.

PART I

Preliminary

Art. 1

The short title of this Act is the Metrology Act.

Short title.

Amended by:

XV. 2006.19.

Art. 2

In this Act unless the context otherwise requires - Interpretation.

Amended by:

XV. 2006.20;

VI. 2011.163. "Authority" means the Malta Competition and Consumer Affairs Authority as established by the Malta Competition and Consumer Affairs Authority Act; "calibration" refers to all the operations for the purpose of determining the values of errors of a measuring instrument; "container" means a container in which goods are exposed, packed, offered for sale or sold, including, in particular, a bag, case, carton, bottle, glass, box, can, envelope, net, sack or wrapper, whether or not such wrapper fully encloses its contents; "conformity assessment procedures" has the meaning assigned to it by article 8; "Court" means the Court of Magistrates sitting as a court of criminal judicature; "Director General" means the person appointed as Director General (Standards and Metrology) by article 21 of the Malta Competition and Consumer Affairs Authority Act; "functions" includes powers and duties; "goods" means anything which may be the subject of trade or manufacture; "inspector" means a person authorised or appointed under article 5 to be an inspector for the purposes of this Act; "Institute" means the Standards and Metrology Institute as established by article 21 of the Malta Competition and Consumer Affairs Authority Act; "legal metrology" means that part of metrology which deals with units of measurement, methods of measurement and of measuring instruments in relation to the mandatory technical and legal requirements which have the object of ensuring the appropriate accuracy of measurements;

METROLOGY "mark" or "marking" includes any inscription, stamp or label signifying conformity or otherwise of a measuring instrument with this Act and regulations made thereunder whether applied by impressing, casting, engraving, etching, branding or otherwise; "measurement standard" means a measuring instrument intended to define, to represent physically, to conserve or to reproduce the unit of measurement of a quantity, or a multiple or sub-multiple of that unit in order to transmit it to other measuring instruments by comparison; "measuring" means the act or process of appraising, assessing, calculating, calibrating, computing, estimating, evaluating or gauging of length, volume, weight or magnitude, and "measurement" shall be construed accordingly; "measuring instrument" means a device intended to be used to make measurements, alone or in conjunction with a supplementary device or devices; "Metrology" is the field of knowledge concerned with measurement, the principal fields of which are: units of measurement and their measurement standards, measurements and measuring instruments; "Minister" means the Minister responsible for standards and metrology and includes, to the extent of the authority given, any person authorised by the Minister to act in that behalf for any purpose of this Act; "ordinary measuring instrument" means a measuring instrument intended for ordinary use but not for the verification of other measuring instruments; "periodical verification" means a verification of a measuring instrument, not being an initial verification, which is carried out periodically, at such intervals and according to such procedures as may be established by the Institute; "pre-package" means a product which has been placed in a container of whatever nature without the purchaser being present and where the quantity of the product contained in the package has a pre-determined value and cannot be altered without the package either being opened or undergoing a modification; "prescribed" means prescribed by regulations made under this Act; "prescribed purpose" refers to any of the purposes falling within the terms of article 7(1); "sell" includes offer, expose, advertise or keep for sale, and to supply by way of or for the purpose of consumption, and similar or related words shall be construed accordingly; "SI System" means the International System of Units, "SI", namely, the coherent system of units adopted and recommended by the 11th General Conference on Weights and Measures (Conférence Générale des Poids et Mesures - CGPM) in 1960, and as may be

revised from time to time;

METROLOGY "stamp" means a device used to apply a mark under this Act to a measuring instrument to indicate that it conforms to the requirements of verification; "stamping" includes any operation adopted for the purpose of applying to a measuring instrument the marks indicating that it conforms to the requirements of verification; "type approval" means the examination, including testing in accordance with international practices, and approval of a particular design or pattern of measuring instrument to show that it is suitable for use for a prescribed purpose and is capable of achieving the accuracies required; "unit verification" means the examination of a measuring instrument, generally of a unique design and intended for a specific application, to establish that it satisfies legal metrological requirements; "user" means the person or organisation responsible for the use of the measuring instrument for the purposes of this Act; "verification" means all the operations carried out by the Institute, or by verifiers on its behalf, having the object of ascertaining and confirming that the measuring instrument entirely satisfies the requirements of this Act in respect of verification; "verification mark" means a mark applied to a measuring instrument certifying that the verification of the measuring instrument was carried out with satisfactory results; "verifier" means a person authorised or appointed under article 5 to carry out verification within the meaning and for the purposes of this Act.

PART II

Administration

Art. 3

Director General (Standards and Metrology).

Amemded by:

VI. 2011.163, 164.

Art. 4

Amended by:

VI. 2011.163.

METROLOGY the Director General and to provide assistance on general matters of policy and organisation relating to the functions and activities of the Institute; and (b) to submit proposals and recommendations for new projects in the field of legal metrology.

Appointment of inspectors and verifiers.

Amended by:

VI. 2011.163.

Art. 5

METROLOGY

Art. 6

Powers of inspectors.

Amended by:

VI. 2011.163.

METROLOGY and (b) any document relating to a measuring instrument or any document displayed with any goods offered or exposed for sale which relates to the price or quantity of the goods, and which the inspector believes may be required as evidence in any proceedings.

PART III

Control Procedures of Measuring Instruments, Measurements, Product Quantities and Pre-packages Metrological controls of measuring instruments.

Amended by:

VI. 2011.163.

Art. 7

Art. 8

The Institute shall certify whether or not the measuring Conformity assessment procedures.

Amended by:

VI. 2011.163.

METROLOGY instrument has successfully undergone the conformity assessment procedures adopted in its regard in terms of subarticle (2):

Provided that a certificate of conformity issued by an inspector or a verifier duly appointed in terms of article 5 shall be valid and effective as if issued by the Institute.

Marking of measuring instruments.

Amended by:

VI. 2011.163.

Art. 9

METROLOGY

Art. 10

Sealing and securing measuring instruments.

Amended by:

VI. 2011.163.

Art. 11

Adjusting of measuring instruments.

Amended by:

VI. 2011.163. (a) notify the owner of the measuring instrument or the owner’s authorised representative accordingly, detailing the results of the examination; and (b) request the owner or his representative either to have the work carried out by a third party or to empower the inspector to undertake the necessary adjustment.

Art. 12

Liability of certain measurements to metrological controls.

Amended by:

VI. 2011.163.

Art. 13

Metrological control of product quantities and prepackages delivered or exposed for sale.

Amended by:

VI. 2011.163.

METROLOGY

PART IV

Authorised Units and Measurement Standards Legal units of measurement.

Art. 14

Denominations of measurement standard.

Art. 15

Measurement standards.

Amended by:

VI. 2011.163;

XXI of 2020.

Art. 16

An up-to-date certificate of traceability shall be maintained in respect of every measurement standard or set of measurement s t a n d a r d s m a i n t a i n e d b y t h e I n s t i t u t e o r a n y o rg a n i s a t i o n designated under subarticle (2).

PART V

General provisions

Art. 17

Public weighers.

Amended by:

VI. 2011.163.

Art. 18

Public officers.

Amended by:

VI. 2011.163.

Art. 19

METROLOGY Fees.

Amended by:

VI. 2011.165.

Art. 20

Language of Schedules and regulations.

Art. 21

PART VI

Offences and Penalties Forgery and false marking.

Art. 22

Any person who (a) forges or counterfeits any mark of a type used on any measuring instrument used or intended to be used for any prescribed purpose; (b) applies to any measuring instrument a mark which is forged or counterfeit, or which is false or incorrect; or (c) uses, sells, utters or disposes of any measuring instrument with such forged, counterfeit, false or incorrect mark thereon, or any mark liable to be confused with marks authorised under the provisions of this Act, shall be guilty of an offence.

Tampering with marks and measuring instruments.

Art. 23

Any person who (a) by any means renders a measuring instrument false or inaccurate; (b) for any prescribed purpose, uses, supplies, sells, utters or disposes of a false or inaccurate measuring instrument; or (c) not being an inspector or verifier authorised under this Act, attaches, affixes inscribes, inserts or otherwise applies any mark or plate intended for marking, or removes, defaces, obliterates or otherwise changes any such mark or plate from a measuring instrument, or attaches, affixes, inscribes or inserts such mark or plate into a measuring instrument other than the measuring instrument on which the mark was lawfully inscribed in terms of this Act, shall be guilty of an offence.

Removing or breaking of tags, seals and devices.

Art. 24

Art. 25

Any person who (a) sells any product by weight, measure or number where the weight, measure or number of the goods sold is less than that purported to be sold or is less than corresponds with the price charged; (b) in connection with a measuring instrument, makes a false record of any measuring; or (c) commits any other fraud in connection with any measuring by means of a measuring instrument, Short measure on sale. shall be guilty of an offence.

Art. 26

Art. 27

Prosecution of offences.

Amended by:

VI. 2011.163.

Penalties.

Amended by:

L.N. 427 of 2007.

PART VII

Savings Savings.

Amended by:

VI. 2011.163.

Art. 28

METROLOGY FIRST SCHEDULE (Article 14) Amended by:

L.N. 110 of 2010;

L.N. 190 of 2020 LEGAL UNITS OF MEASUREMENT 1.

SI UNITS AND THEIR DECIMAL MULTIPLES AND SUBMULTIPLES 1.1 SI base units QUANTITY Time Length Mass Electric current Thermodynamic temperature Amount of substance Luminous intensity UNIT Name second metre kilogram ampere kelvin mole candela Symbol s m kg A K mol cd Definitions of SI base units:

Unit of time The second, symbol s, is the SI unit of time. It is defined by taking the fixed numerical value of the caesium frequency , the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be 9 192 631 770 when expressed in the unit , which is equal to s–1.

Unit of length The metre, symbol , is the SI unit of length. It is defined by taking the fixed numerical value of the speed of light in vacuum to be 299 792 458 when expressed in the unit , where the second is defined in terms of .

Unit of mass The kilogram, symbol , is the SI unit of mass. It is defined by taking the fixed numerical value of the Planck constant to be 6.626 070 15 × 10–34 when expressed in the unit J s, which is equal to kg m 2 s –1 , where the metre and the second are defined in terms of and .

Unit of electric current The ampere, symbol A, is the SI unit of electric current. It is defined by taking the fixed numerical value of the elementary charge to be 1.602 176 634 × 10–19 when expressed in the unit C, which is equal to A s, where the second is defined in terms of .

Unit of thermodynamic temperature The kelvin, symbol K, is the SI unit of thermodynamic temperature. It is defined METROLOGY by taking the fixed numerical value of the Boltzmann constant to be 1.380 649 × 10 –23 when expressed in the unit J K –1, which is equal to kg m 2 s –2 K –1, where the kilogram, metre and second are defined in terms of , and .

Unit of amount of substance The mole, symbol mol, is the SI unit of amount of substance. One mole contains exactly 6.022 140 76 × 1023 elementary entities. This number is the fixed numerical value of the Avogadro constant, , when expressed in the unit mol –1 and is called the Avogadro number.

The amount of substance, symbol n, of a system is a measure of the number of specified elementary entities. An elementary entity may be an atom, a molecule, an ion, an electron, any other particle or specified group of particles.

Unit of luminous intensity The candela, symbol cd, is the SI unit of luminous intensity in a given direction. It is defined by taking the fixed numerical value of the luminous efficacy of , to be 683 when monochromatic radiation of frequency 540 × 10 12 Hz, expressed in the unit lm W –1 , which is equal to cd sr W –1 , or cd sr kg –1 m –2 s 3 , where the kilogram, metre and second are defined in terms of , and 1.1.1. Special name and symbol of the SI derived unit of temperature for expressing Celsius temperature QUANTITY Celsius temperature UNIT Name degree Celsius Symbol °C Celsius temperature t is defined as the difference t = T – T 0 between the two thermodynamic temperatures T and T0 where T0 = 273.15 K. An interval or difference of temperature may be expressed either in kelvins or in degrees Celsius. The unit "degree Celsius" is equal to the unit "kelvin".

1.2 SI derived units Definitions of supplementary SI units:

Unit of plane angle The radian is the angle between two radii of a circle cut off on the circumference of an arc equal in length to the radius.

Unit of solid angle The steradian is the solid angle of a cone which, having its vertex in the centre of a sphere, cuts off on the surface of the sphere an area equal to that of a square with sides of length equal to the radius of the sphere.

1.2.1. (Deleted by Legal Notice 110 of 2010).

1.2.2. General rule for 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.

METROLOGY 1.2.3. SI derived units with special names and symbols Quantity Unit Name Symbol Plane angle Solid angle steradian Frequency Force Pressure, stress Energy, work; quantity of heat Power (1), radiant flux Quantity of electricity, electric charge Electric potential, potential difference, electromotive force Electric resistance Expression In terms of In terms of SI base other SI units units m . m-1 m2 . m-2 s-1 m . kg . s-2 -2 N.m m-1 . kg . s-2 N.m m2 . kg . s-2 radian steradian hertz newton pascal joule rad sr Hz N Pa J watt coulomb W C J . s-1 m2 . kg . s-3 s.A volt V W . A-1 m2 . kg . s-3 . A -1 V . A-1 m2 . kg . s-3 . A -2 ohm  Conductance siemens S A . V-1 m-2 . kg -1 . s3 . A 2 -1 Capacitance farad F C.V m-2 . kg -1 . s4 . A 2 Magnetic flux weber Wb V.s m2 . kg . s-2 . A -1 -2 Magnetic flux density tesla T Wb . m kg . s-2 . A -1 -1 Inductance henry H Wb . A m2 . kg . s-2. A -2 Luminous flux lumen lm cd . sr cd Illuminance lux lx lm . m-2 m-2 . cd . sr Activity becquerel Bq s-1 (of a radionuclide) Absorbed dose, specific gray Gy J . Kg -1 m2 . s-2 e n e rg y i m p o r t e d , k e r m a , absorbed dose index Dose equivalent sievert Sv J . Kg-1 m2 . s-2 Catalytic activity katal kat mol . s-1

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.

1.3 Prefixes and their symbols used to designate certain decimal multiples and submultiples Factor Prefix yotta zetta exa Symbol Y Z E Factor 10-1 10-2 10-3 Prefix deci centi milli Symbol d c m 10 15 10 12 10 6 10 2 10 1 METROLOGY peta tera giga mega kilo hecto deca 10-6 10-9 10-12 10-15 10-18 10-21 10-24 P T G M k h da micro nano pico femto atto zepto yocto m n p f a z y’ The names and symbols of the decimal multiples and submultiples of the unit of mass are formed by attaching prefixes to the word ‘gram’ and their symbols to the symbol ‘g’.

Where a derived unit is expressed as a fraction, its decimal multiples and submultiples may be designated by attaching a prefix to units in the numerator or the denominator, or in both these parts.

Compound prefixes, that is to say prefixes formed by the juxtaposition of several of the above prefixes, may not be used.

1.4 Special authorised names and symbols of decimal multiples and submultiples of SI units Quantity Name Volume Mass Pressure, stress litre tonne bar Unit Symbol l or L t bar Value 1 l = 1 dm 3 = 10 -3 m3 1 t = 1 Mg = 10 3 kg 1 bar = 10 5 Pa Note: The prefixes and their symbols listed in 1.3 may be used in conjunction with the units and symbols contained in Table 1.4.

2.

UNITS WHICH ARE DEFINED ON THE BASIS OF SI UNITS BUT ARE NOT DECIMAL MULTIPLES OR SUBMULTIPLES THEREOF Quantity Plane angle Time Name revolution grade or gon degree minute of angle second of angle minute hour day Unit Symbol gon    min h d Value 1 revolution = 2  rad 1 gon = /200 rad 1 = /180 rad 1 = /10800 rad 1 = /648000 rad 1 min = 60 s 1 h = 3600 s 1 d = 86400 s Note: The prefixes listed in 1.3 may only be used in conjunction with the names ‘grade’ or ‘gon’ and the symbol ‘gon’.

3.

UNITS USED WITH THE SI, WHOSE VALUES IN SI ARE OBTAINED EXPERIMENTALLY Quantity Name Unit Symbol Definition METROLOGY Energy Electronvolt eV Energy Unified atomic mass unit u The electron volt is the kinetic energy acquired by an electron in passing through a potential difference of 1 volt in vacuum The unified atomic mass unit is equal to 1/12 of the mass of an atom of the nuclide 12C.

Note: The prefixes and their symbols listed in 1.3 may be used in conjunction with these two units and with their symbols.

4.

UNITS AND NAMES OF UNITS PERMITTED IN SPECIALISED FIELDS ONLY Quantity Unit Name dioptre metric carat are Symbol Vergency of optical systems Mass of precious stones Area of farmland and building land Mass per unit length of textile tex yarns and threads Blood pressure and pressure Millimetre of of other body fluids mercury Effective cross-sectional area Barn a Value 1 dioptre = 1 m-1 1 metric carat = 2 x 10-4 kg 1 a = 102 m2 tex 1 tex = 10-6 kg . m-1 mm Hg b 1 mm Hg = 133.322 Pa 1 b = 10 –28 m2 Note: The prefixes and their symbols listed in 1.3 may only be used in conjunction with the above units and symbols, with the exception of the millimetre of mercury and its symbol. The multiple 102 a is, however, called a ‘hectare’.

5.

COMPOUND UNITS Combination of the units listed in this Schedule to this Act form compound units.

SECOND SCHEDULE (Article 14) MEASURES AND WEIGHTS LAWFUL FOR USE FOR THE PURPOSE OF TRADE IN MALTA LINEAR MEASURES Table I: Measures of 50 metres 30 metres 20 metres 10 metres 5 metres 3 metres 2 metres 1.5 metres 1 metre 0.5 metre 1 decimetre 1 centimetre SQUARE MEASURES Measures of, or of any multiple of, 1 square decimetre.

METROLOGY CUBIC MEASURES 1.

Measures of, or any multiple of, 0.1 cubic metre.

2.

Measures of any multiple of 10 litres.

3.

Table II: Measures of 10 litres 5 litres 2.5 litres 2 litres 1 litre 500 millilitres 250 millilitres 200 millilitres 100 millilitres 50 millilitres 25 millilitres 20 millilitres 10 millilitres 5 millilitres 2 millilitres 1 millilitre CAPACITY MEASURES 1.

Measures of any multiple of 10 litres 2.

Table III: Measures of 10 litres 5 litres 2.5 litres 2 litres 1 litre 500 millilitres 250 millilitres 200 millilitres 175 millilitres 150 millilitres 125 millilitres 100 millilitres 50 millilitres 25 millilitres 20 millilitres 10 millilitres 5 millilitres 2 millilitres 1 millilitre WEIGHTS 1.

Table IV: Weights of 25 kilograms 20 kilograms 10 kilograms 5 kilograms 2 kilograms 1 kilogram 500 grams 200 grams 100 grams 50 grams 20 grams 15 grams 10 grams 3 grams 2 grams 1 grams 500 milligrams 400 milligrams 300 milligrams 200 milligrams 150 milligrams 100 milligrams 50 milligrams 20 milligrams 10 milligrams 5 milligrams METROLOGY 5 grams 4 grams 2.

2 milligrams 1 milligram Table V: Weights of 500 carats (metric) 200 carats (metric) 100 carats (metric) 50 carats (metric) 20 carats (metric) 10 carats (metric) 5 carats (metric) 2 carats (metric) 1 carat (metric) 0.5 carat (metric) 0.25 carat (metric) 0.2 carat (metric) 0.1 carat (metric) 0.05 carat (metric) 0.02 carat (metric) 0.01 carat (metric) THIRD SCHEDULE (Article 14) GENERAL INFORMATION ON METRIC EQUIVALENTS TABLE (a) of the values of the principal denominations of measures and weights on the metric system expressed by means of denominations of Maltese and Imperial measures and weights; and (b) of the values of the principal denominations of measures and weights of the Maltese and Imperial systems expressed by means of metric weights and measures. (a) MEASURES OF LENGTH Metric Measures Equivalents in Imperial Equivalents in Maltese Measures Measures Miles Yards Feet Inches Decimals Qasab Xbar Decimals 1 Kilometre 70792 1 Hectometre 770792 1 Decametre 70113 1770792 1 Metre 370113 81770792 1 Decimetre 9370113 38177079 1 Centimetre 39370113 038177079 1 Millimetre 039370113 0038177079 MEASURES OF SURFACES Metric Measures 1 Hectare 1 Are 1 Square Metre Equivalents in Imperial Measures 2.47106 Acres 119.60 Square yards 1.1960 Square yards Equivalents in Maltese Measures .555988 ta’ Modd .53375 ta’ Sieg] .053375 ta’ Kejla or .22773 ta’ Qasba Kwadra METROLOGY 1 Square decimetre 1 Square centimetre 15.5 Square inches .15500 Square inches .14575 ta’ Xiber kwadru .0014575 ta’ Xiber kwadru MEASURES OF CAPACITY FOR LIQUIDS – No. 1 For Beer, Wine and Spirits Metric Measures Equivalents in Imperial Equivalents in Maltese Measures Measures Gallons Quarts Pints Decimals Bramel {arar Kwarti Krate` Decimals 1 Kilolitre 15155504 1 Hectolitre 490155504 1 Decalitre 0490155504 1 Litre 75980 879901555 1 Decilitre 175980 0879901555 1 centilitre 0175980 00879901555 1 Millilitre 00175980 000879901555 MEASURES OF CAPACITY FOR LIQUIDS – No. 2 For Oil and Milk Metric Measures Equivalents in Imperial Measures Gallons Quarts Pints Decimals 1 Kilolitre 1 Hectolitre 1 Decalitre 1 Litre 75980 1 Decilitre 175980 1 Centilitre 0175980 1 Millilitre 00175980 Kaffisi - Equivalents in Maltese Measures Kwarti Krate` Decimals 1347152 21347152 821347152 7821347152 07821347152 007821347152 0007821347152 MEASURES OF CAPACITY FOR DRY GOODS Metric Measures Equivalents in Imperial Measures Qrs. Bushels Gallons Decimals 1 Kilolitre 1 Hectolitre 1 Decalitre 19975 1 Litre 1 Decilitre 1 Centilitre 1 Millilitre - - - 219975 0219975 00219975 000219975 Equivalents in Maltese Measures Mdied Tmiem Sieg]an Decimals 29962464 - - - 329962464 0329962464 00329962464 000329962464 CUBIC MEASURES

Metric Measures 1 Cubic metre Equivalents in Imperial Measures 1.307954 Cubic yards 35.3148 Cubic feet Equivalents in Maltese Measures 55.64278 Xbar kubi or .1086773 ta’ Qasba kuba METROLOGY 1 Cubic decimetre 0353148 Cubic feet 1 Cubic centimetre .061024 Cubic inches .0556427 ta’ Xiber kubu or .0001086773 ta’ Qasba kuba .0000556427 ta’ Xiber kubu WEIGHTS Metric Weights Cwts.

100 Kilograms (1 quintal) Kilogram 1 Hectogram 1 Decagram 1 Gramme 1 Decigram 1 Centigram 1 Milligram Equivalents in Imperial Weights Qrs.

Lbs.

Decimals 46223 - - - 2046223 22046223 022046223 0022046223 00022046223 000022046223 0000022046223 Equivalents in Maltese Weights Qnatar Irtal Ewieq Decimals - - - 79352 77935 377935 0377935 00377935 000377935 0000377935 (b) MEASURES OF LENGTH Maltese Measures Equivalents in Imperial Measures Feet Inches Decimals 1 Qasba (8 ixbar) 1 Xiber 1 Pulzier 1 Mil equal to Equivalents in Metric Measures Metres Decimal 09549817 859375 yds. 1760 or kilometres 26193727 021828105 1.6093 MEASURES OF SURFACE Maltese Measures Acres 1 Modd 1 Tomna 1 Sieg] 1 Kejla 1 Qasba kwadra 1 Xiber kwadru - Equivalents in Imperial Measures Roods Poles Sqr.

Sqr.

Yards Feet - Equivalents in metric Measures Decimals 265625 7385162 1.798599928 hectares 11.2412495 acres 187.35416 Sqr. Metres 18.735416 Sqr. Metres 4.3911126 Sqr. Metres 6.8611 Sqr. Decimetres MEASURES OF CAPACITY FOR LIQUIDS – No. 1 METROLOGY For Beer, Wine and Spirits Maltese Measures 1 Barmil (4 [arar) 1 {arra (2 kwarti) 1 Kwarta ( 3/4Krate`) 1 Karto`` (2 infas) 1 Nofs (2 terzi) 1 Terz (2 pinet) 1 Pinta Equivalents in Imperial Measures Gallons Decimals 03125 Equivalents in metric Measures Litres Decimals 18664945 7966623625 39833118125 13649077500 56824538750 28412269375 142061346875 MEASURES OF CAPACITY FOR LIQUIDS – No. 2 For Oil and Milk Maltese Measures 1 Qafiz (4 kwarti) 1 Kwarta ( 3/4 Krate`) 1 Karto`` (2 infas) 1 Nofs (2 terzi) 1 Terz (2 kejliet) 1 Kejla (4 kwartini) 1 Kwartin Equivalents in Imperial Measures Gallons Decimals 28125 140625 0703125 028125 00703125 Equivalents in metric Measures Litres Decimals 45683395 1142084875 278552121875 6392760609375 31963803046875 1278552121875 031963803046875 MEASURES OF CAPACITY FOR DRY GOODS Maltese Measures 1 Modd (16-il tomna) 1 Tomna (6 sieg]an) 1 Sieg] (10 kejliet) 1 Kejla (10 lumini) 1 Lumin Equivalents in Imperial Measures Quarters Decimals 010416 0010416 00010416 Equivalents in Metric Measures Hectolitres Decimals 90942 18183875 03030645 003030645 0003030645 CUBIC MEASURES Maltese Measures 1 Qasab kubu Equivalents in Imperial Measures 324.9511 Cubic feet Equivalents in Metric Measures 9.201556 Cubic metres METROLOGY 1 Xiber kubu 1 Pulzier kubu .63467 Cubic feet .63467 Cubic inches 17.9717 Cubic decimetres 10.4 Cubic centimetres WEIGHTS Maltese Measures Equivalents in Imperial Measures Lbs.

Decimals 0583333 01458333 007291666 - 1 Qantar or `ental (20 wi\na) 1 Wi\na (5 irtal) 1 Ratal (30 Maltese uqija) 1 Uqija (4 Kwarti) 1 Kwart (2 ottavi) 1 Ottav 1 Pe\ata (3 qnatar) 1 Ton (weight) 1280 (ratal) Equivalents in metric Measures Kilograms Decimals 37867525 9689337625 7937867525 026459558416 00661489604 003307444802 13602575 - FOURTH SCHEDULE (Article 14) NAMES AND SYMBOLS USED IN THE INTERNATIONAL SYSTEM OF UNITS "SI"

1.

Definition "SI" shall have the meaning assigned to it in article 2 of the Act.

2.

SI unit symbols SI unit symbols (and also many non-SI unit symbols) are written as follows:

2.1. Roman (upright) type is used for the unit symbols. In general, unit symbols are written in lower case, but, if the name of the unit is derived from the proper name of a person, the first letter of the symbol is a capital. When the name of a unit is spelled out, it is always written in lower case, except when the name is the first word of a sentence or is the name "degree Celsius".

2.2. Unit symbols are unaltered in the plural.

2.3. Unit symbols are not followed by a full stop (period), except as normal punctuation at the end of a sentence.

3.

Algebra of SI unit symbols In accord with the general principles adopted by ISO/TC 12 (ISO 31), the CIPM recommends that algebraic expressions involving SI unit symbols be expressed in standard forms.

3.1. Half-high dots or spaces are used to express a derived unit formed from two or more other units by multiplication.

Example: N · m or N m.

3.2 A solidus (oblique stroke, /), a horizontal line, or a negative exponent is METROLOGY used to express a derived unit formed from two other units by division.

Example: m/s or m - s or m · s-1.

3.3. The solidus is not followed by a multiplication sign or by a division sign on the same line unless ambiguity is avoided by parentheses. In complicated cases, negative exponents or parentheses are used to avoid ambiguity.

Examples: m/s2 or m · s-2 but not m/s/s m · kg/(s3 · A) or m · kg · s-3 · A -1 but neither m · kg/s3 /A nor m · kg/s3 · A.

4.

Rules for using SI prefixes In accord with the general principles adopted by the ISO (ISO 31), the CIPM recommends that the following rules be observed when using the SI prefixes:

4.1. Prefix symbols are printed in roman (upright) type with no space between the prefix symbol and the unit symbol.

4.2. The grouping formed by the prefix symbol attached to the unit symbol constitutes a new inseparable symbol (of a multiple or submultiple of the unit concerned) which can be raised to a positive or negative power and combined with other unit symbols to form compound unit symbols.

Examples:

1 c m3 = (10-2 m )3 = 10-6 m3 1 μ s-1 = (10-6 s )-1 = 106 s -1 1 V/cm = (1 V) / (10-2 m) = 102 V / m 1 cm-1 = (10-2 m)-1 = 102 m -1.

4.3. Compound prefixes, i.e. prefixes formed by the juxtaposition of two or more SI prefixes, are not used.

Example: 1 nm but not 1 mμm.

4.4. A prefix is never used in isolation.

Example: 106 /m 3 but not M/m3.