Class

Micron Measurement

Breeds

Description

Abbreviation

Super Fine Merino

SF Mer

<19

Merino

Fine Merino

F Mer

19

Medium Merino 14

M Mer

21

Strong Merino

Stg Mer

23

Quaterbred

1/4 Bd

26 – 24

Quarterbred
Polwarth

Fine Halfbred

F1/2Bd

26 – 24

Medium Halfbred

M1/4Bd

28

NZ Halfbred

Strong Halfbred

Stg1/2Bd

30

Corriedale

Extra Fine Crossbred

Ex FX Bd

31

Perrendale
Romney

Fine Crossbred

FX Bd

32

Coopworth
BorderLeicester

Medium Crossbred

MX Bd

33 – 37

EnglishLeicester

Strong Crossbred

Stg x Bd

38 – 40

Lincolnand Long-wool crosses

Extra Strong Crossbred

Ex Stg x Bd

42 – 38

Drysdale
Carpetmaster
Tukidale

Down

Dn

32 – 22

Southdown

26 – 22

Suffolk
Hampshire
Shropshire
Dorset Down
Dorset Horn
Ryeland and
Down Crosses

Cheviot

Cvt

36 – 28

Cheviot