67.100.01 - Milk and milk products in general

This document gives guidelines for the use of near infrared (NIR) spectrometry in the analysis of milk and milk products in liquid, semi-solid or solid form. Depending on the sample form and application, different instrument setups for transmittance, diffuse reflectance or transflectance can be applied.

This document specifies a liquid chromatography tandem mass spectrometry (LC?MS/MS) method for the quantification of the inhibitory substance, nitrofurazone, in milk and milk products. The method has been validated for measuring trace levels of intact nitrofurazone to levels down to 1 ng/g in fluid milk and powdered dairy products on a whole product (i.e. powder) basis. While the method is expected to apply to other dairy matrices, additional validation will be required to demonstrate this.

This document specifies rules for the preparation of samples of milk and milk products and their
suspensions for microbiological examination when the samples require a different preparation from
the general methods specified in ISO 6887-1.
This document excludes the preparation of samples for both enumeration and detection test methods
where preparation details are specified in the relevant International Standards.
This document is intended to be used in conjunction with ISO 6887-1.
This d...view more

This document specifies a method for the determination of the whey to casein protein ratio, ranging from 20:80 to 80:20 in cow milk-based infant formula powders. This method does not apply to the analysis of infant formulas containing hydrolysed protein or proteins from other sources (e.g. plants or milk from other mammals).

ISO 19662 | IDF 238:2018 specifies a method, the acido-butyrometric or "Gerber", for determining the fat content of milk. It is applicable to whole milk and partially skimmed milk. It is also applicable to milk containing authorized preservatives (potassium dichromate, bronopol). It does not apply to formalin milk, nor to milks that have undergone a homogenisation treatment.

ISO/TS 19046-1| IDF/RM 233-1:2017 specifies a method for the determination of propionic acid level in cheese, using gas chromatography.

ISO/TS 19046-2 | IDF/RM 233-2:2017 specifies a method for the determination of propionic acid level in cheese, using ion exchange chromatography.

ISO 22964:2017 specifies a horizontal method for the detection of Cronobacter spp.
Subject to the limitations discussed in the introduction, this document is applicable to
- food products and ingredients intended for human consumption and the feeding of animals, and
- environmental samples in the area of food production and food handling.

ISO 22964:2017 specifies a horizontal method for the detection of Cronobacter spp. Subject to the limitations discussed in the introduction, this document is applicable to - food products and ingredients intended for human consumption and the feeding of animals, and - environmental samples in the area of food production and food handling.

ISO 27105:2016 specifies a method for the quantitative determination of hen's egg white lysozyme content in milk and cheese. The method is suitable for measuring low levels of hen's egg white lysozyme with a quantification limit of 10 mg/kg.

This International Standard specifies a method for the determination of the water content of lactose by Karl Fischer (KF) titration.

ISO 15163:2012 specifies a reference method for the determination of the amounts of chymosin and bovine pepsin present in a test sample of calf rennet and adult bovine rennet. In addition, it can be used for mixtures of calf/bovine rennet with fermentation-produced bovine chymosin (FPC).

ISO/TS 17193¦IDF/RM 208:2011 specifies a photometric method for the determination of the lactoperoxidase activity in milk in amounts exceeding 50 U/l.

ISO 13082:2011 specifies a method for the determination of the lipase activity. It is intended for the preparation of pregastric lipase and rennet paste, both of animal origin.

1.1 This International Standard specifies sampling plans for the inspection by attributes of milk and milk products. It is intended to be used to choose a sample size for any situation where it is required to measure the conformity to a specification of a lot of a dairy product by examination of a representative sample.
1.2 This International Standard is applicable to the sampling of all milk products submitted in discrete lots, irrespective of whether the lots are from the same production. The...view more

ISO/TS 15495|IDF/RM 230 gives guidance for the quantitative determination of melamine and cyanuric acid content in milk, powdered milk products, and infant formulae by electrospray ionization liquid chromatography tandem mass spectrometry (LC-MS/MS).

ISO 10932|IDF 223:2010 specifies a method for determining the minimal inhibitory concentration (MIC) of a series of antibiotics applicable to bifidobacteria and non-enterococcal lactic acid bacteria (LAB). ISO 10932|IDF 223:2010 recommends the broth microdilution method as the standard method.

ISO 11813|IDF 156:2010 specifies a flame atomic absorption spectrometric method for the determination of the zinc content of milk and milk products. The method has been validated for zinc contents of between 25 mg/kg and 70 mg/kg (dry mass) in milk and milk products.

ISO 6732|IDF 103:2010 specifies a spectrometric reference method for the determination of the iron content of milk and milk products. This method is applicable to: milk, skimmed milk, whey and buttermilk; plain yogurt and skimmed yogurt; evaporated milk and sweetened condensed milk; dried whole and skimmed milk, dried whey and dried buttermilk; cream and butter; anhydrous butterfat, butteroil, butterfat and ghee; ice-cream; cheese of various ages, and processed cheese; caseins, caseinates and co...view more

ISO 29981|IDF 220:2010 specifies a method for the selective enumeration of presumptive bifidobacteria in milk products by using a colony count technique at 37 °C under anaerobic conditions. The method is applicable to milk products such as fermented and non-fermented milks, milk powders, infant formulae, and starter cultures where these microorganisms are present and viable, and in combination with other lactic acid bacteria. Bifidobacteria used in milk products usually belong to the species: Bi...view more