NF B35-540

NF B35-540

June 1998
Standard Cancelled

Laboratory glassware. Butyrometer for cream.

Le présent document a pour objet de fixer les caractéristiques d'un butyromètre gradué de 0 % à 50 % utilisé pour la détermination de la teneur en matière grasse des crèmes par la méthode acido-butyrométrique. La lecture de la teneur en matière grasse peut se faire à l'oeil nu ou de façon automatisée (lecture instrumentale).

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Main informations

Collections

National standards and national normative documents

Publication date

June 1998

Number of pages

11 p.

Reference

NF B35-540

ICS Codes

67.260   Plants and equipment for the food industry
71.040.20   Laboratory ware and related apparatus

Classification index

B35-540

Print number

2 - 01/07/1998
Sumary
Laboratory glassware. Butyrometer for cream.

Le présent document a pour objet de fixer les caractéristiques d'un butyromètre gradué de 0 % à 50 % utilisé pour la détermination de la teneur en matière grasse des crèmes par la méthode acido-butyrométrique. La lecture de la teneur en matière grasse peut se faire à l'oeil nu ou de façon automatisée (lecture instrumentale).
Standard replaced by (1)
NF ISO 19660
August 2018
Standard Current
Cream - Determination of fat content - Acido-butyrometric method

ISO 196660 | IDF 237:2018 specifies an acidobutyrometric method for determining the fat content of cream. The reference method remains the gravimetric method (by ammoniacal ether extraction) described in ISO 2450 | IDF 16. This method is applicable to cream having a fat content between 20 % and 50 % inclusive: - intended for manufacturing butter; - sweet, unmatured and non-inoculated; - raw or having undergone a heat treatment; - non-homogenized; - with or without preservatives (2-bromo-2-nitropropane, 1,3 diol or bronopol).

Table of contents
  • Avant-propos
    4
  • Introduction
    5
  • 1 Domaine d'application
    5
  • 2 Références normatives
    5
  • 3 Classification
    5
  • 4 Description
    5
  • 5 Désignation
    5
  • 6 Fabrication
    5
  • 7 Caractéristiques géométriques
    6
  • 8 Graduation
    6
  • 9 Marquage
    8
  • Annexe A (normative) Systèmes de pesage
    10
  • Annexe B (normative) Bouchons pour les butyromètres à crème
    11
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