OMB Meeting Book (June 22, 2017)

57

CODEX STAN 234-1999

11

Fats and Oils and Related Products Named Vegetable Oils

Acidity

ISO 660; or AOCS Cd 3d-63

Titrimetry

I I

Named Vegetable Oils

Apparent density

ISO 6883, with the appropriate conversion factor; or AOCS Cc 10c-95

Pycnometry

AOCS Cb 2-40

Named Vegetable Oils

Baudouin test (modified Villavecchia or sesameseed oil test)

Colour reaction

I

BS 684 Section 2.20

Named Vegetable Oils Named Vegetable Oils Named Vegetable Oils Named Vegetable Oils Named Vegetable Oils Named Vegetable Oils Named Vegetable Oils

Carotenoids, total Copper and iron

Spectrophotometry

II II

ISO 8294; or AOAC 990.05; or AOCS Ca 18b-91 AOCS Cb 4-35 and AOCS Ca 5a-40 ISO 5508 and ISO 12966-2; or AOCS Ce 2- 66 and Ce 1--62 or Ce 1h-05

AAS

Crismer value

Turbidity

I

GLC ranges of fatty acid composition

Gas chromatography of methyl esters

II

AOCS Cb 1-25

Halphen test

Colorimetry Gravimetry

I I I

Insoluble impurities Iodine value (IV)

ISO 663

Wijs - ISO 3961; or AOAC 993.20; or AOCS Cd 1d-92; or NMKL 39

Wijs-Titrimetry 4

Lead

AOAC 994.02; or ISO 12193; or AOCS Ca 18c-91

Atomic Absorption

II

Named Vegetable Oils

Moisture & volatile matter at 105°C

ISO 662

Gravimetry

I

Named Vegetable Oils

Peroxide value (PV)

AOCS Cd 8b-90 or ISO 3960 ISO 6320 or AOCS Cc 7-25

Titrimetry

I

Named Vegetable Oils Named Vegetable Oils Named Vegetable Oils

Refractive index

Refractometry

II

Reichert value and Polenske value

AOCS Cd 5-40

Titrimetry

I

Named Vegetable Oils

Relative density

IUPAC 2.101 with the appropriate conversion factor See comment above (Named Animal Fats) 5

Pycnometry

I

4 It is possible to calculate the Iodine Value from fatty acid composition data obtained by gas chromatography e.g. using AOCS Cd 1b-87 5 The method is no longer available.