NF ISO 14932

NF ISO 14932

March 2012
Standard Cancelled

Rubber compounding ingredients - Organic vulcanizing agents - Determination of organic peroxide content

ISO 14932:2012 specifies four methods for the determination of the content of the following groups of organic peroxides used as rubber vulcanizing agents. There are three titration methods and one using capillary gas-chromatography as given below.Titration method A for group a) peroxyketals: DTBPC: 1,1-Di(tert-butylperoxy)cyclohexane; DBPMC: 1,1-Di(tert-butylperoxy)-2-methylcyclohexane; DBPTC: 1,1-Di(tert-butylperoxy)-3,3,5-trimethylcylcohexane; DBPB: 2,2-Di(tert-butylperoxy)butane; BPV: Butyl-4,4-di(tert-butylperoxy)valerate.Titration method B for group b) diacylperoxides: Dibenzoyl peroxide; Di(2,4-dichlorobenzoyl) peroxide; Di(4-methylbenzoyl) peroxide.Titration method C for group c) diaralkyl and alkyl-aralkyl peroxides: Di(tert-butylperoxyisopropyl)benzene; Dicumyl peroxide; tert-Butyl cumyl peroxide.Capillary gas-chromatography for dialkyl peroxides: 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane.

See more
View the extract
Main informations

Collections

National standards and national normative documents

Publication date

March 2012

Number of pages

38 p.

Reference

NF ISO 14932

ICS Codes

83.040.20   Rubber compounding ingredients

Classification index

T45-032

Print number

1 - 16/02/2012

International kinship

ISO 14932:2012
Sumary
Rubber compounding ingredients - Organic vulcanizing agents - Determination of organic peroxide content

ISO 14932:2012 specifies four methods for the determination of the content of the following groups of organic peroxides used as rubber vulcanizing agents. There are three titration methods and one using capillary gas-chromatography as given below.

Titration method A for group a) peroxyketals: DTBPC: 1,1-Di(tert-butylperoxy)cyclohexane; DBPMC: 1,1-Di(tert-butylperoxy)-2-methylcyclohexane; DBPTC: 1,1-Di(tert-butylperoxy)-3,3,5-trimethylcylcohexane; DBPB: 2,2-Di(tert-butylperoxy)butane; BPV: Butyl-4,4-di(tert-butylperoxy)valerate.

Titration method B for group b) diacylperoxides: Dibenzoyl peroxide; Di(2,4-dichlorobenzoyl) peroxide; Di(4-methylbenzoyl) peroxide.

Titration method C for group c) diaralkyl and alkyl-aralkyl peroxides: Di(tert-butylperoxyisopropyl)benzene; Dicumyl peroxide; tert-Butyl cumyl peroxide.

Capillary gas-chromatography for dialkyl peroxides: 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane.

Standard replaced by (1)
NF ISO 14932
September 2023
Standard Current
Rubber compounding ingredients - Organic vulcanizing agents - Determination of organic peroxide content

This document specifies four methods for the determination of the content of the following groups of organic peroxides used as rubber vulcanizing agents. There are three titration methods and one gas-chromatography method. a)       titration method A for group a: Peroxyketals: 1,1-Di(tert-butylperoxy)cyclohexane (DTBPC; CAS Registry Number®:3006-86-8) 1,1-Di(tert-butylperoxy)-2-methylcyclohexane (DBPMC; CAS RN 147217‑40‑1); 1,1-Di(tert-butylperoxy)-3,3,5-trimethylcylcohexane (DBPTC; CAS RN 6731‑36‑8); 2,2-Di(tert-butylperoxy)butane (DBPB; CAS RN 2167‑23‑9); Butyl −4,4-di(tert-butylperoxy)valerate (BPV; CAS RN 995‑33‑5); b)       titration method B for group b: Diacyl peroxides: Dibenzoyl peroxide (CAS RN 94‑36‑0); Di(2,4-dichlorobenzoyl) peroxide (CAS RN 133‑14‑2); Di(4-methylbenzoyl) peroxide (CAS RN 895‑85‑2); c)        titration method C for group c: Diaralkyl and alkyl-aralkyl peroxides: Di(tert-butylperoxyisopropyl)benzene (CAS RN 2212‑81‑9); Dicumyl peroxide (CAS RN 80‑43‑3); tert-Butyl cumyl peroxide (CAS RN 3457‑61‑2); d)       gas-chromatography for dialkyl peroxides, using a capillary or packed column. 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane (CAS RN 78‑63‑7)

Table of contents
  • Avant-propos
    iv
  • 1 Domaine d'application
    1
  • 1.1 Méthode par titrage A pour le groupe a) peroxycétals
    1
  • 1.2 Méthode par titrage B pour le groupe b) peroxydes de diacyles
    1
  • 1.3 Méthode par titrage C pour le groupe c) peroxydes de diaralkyles et peroxydes d'alkyles et d'aralkyles
    1
  • 1.4 Chromatographie en phase gazeuse sur colonne capillaire pour les peroxydes de dialkyles
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    2
  • 4 Méthode par titrage A
    2
  • 4.1 Objet
    2
  • 4.2 Principe
    2
  • 4.3 Mode opératoire général
    3
  • 4.4 Expression des résultats
    3
  • 5 Méthode par titrage B
    4
  • 5.1 Objet
    4
  • 5.2 Principe
    4
  • 5.3 Mode opératoire général
    5
  • 5.4 Expression des résultats
    5
  • 6 Méthode par titrage C
    6
  • 6.1 Objet
    6
  • 6.2 Principe
    6
  • 6.3 Réactifs
    6
  • 6.4 Appareillage
    7
  • 6.5 Prétraitement de l'échantillon
    7
  • 6.6 Mode opératoire
    7
  • 6.7 Expression des résultats
    8
  • 7 Détermination de la teneur en 2,5-diméthyl-2,5-di(tert-butylperoxy)hexane
    9
  • 7.1 Objet
    9
  • 7.2 Principe
    9
  • 7.3 Réactifs
    9
  • 7.4 Appareillage
    9
  • 7.5 Conditions
    10
  • 7.6 Mode opératoire
    10
  • 7.7 Expression des résultats
    11
  • 8 Fidélité
    12
  • 9 Rapport d'essai
    12
  • Annexe A (informative) Méthode de détermination de la teneur en peroxycétal
    13
  • Annexe B (normative) Méthode de détermination de la teneur en hydroperoxyde de tert-butyle
    17
  • Annexe C (informative) Méthode de détermination de la teneur en peroxydes de diacyles
    21
  • Annexe D (normative) Préparation de l'échantillon pour la détermination de la teneur en peroxyde dans les mélanges-maîtres de peroxyde
    24
  • Annexe E (normative) Préparation de l'échantillon pour la détermination de la teneur en peroxyde d'alkyle et d'aralkyle dans les polymères
    27
  • Annexe F (informative) Fidélité
    29
  • Bibliographie
    34
ZOOM ON ... the Requirements department
To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!

With Requirements, quickly access the main part of the normative text!
Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ