Materials and articles in contact with foodstuffs. Plastics substances subject to limitation Determination of isocyanates in plastics

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

17-06-2004

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
  4.1 Analytes
  4.2 Reagents
5 Apparatus
  5.1 General
6 Samples
7 Procedure
  7.1 Test sample screening
      7.1.1 Test sample extraction and derivation
      7.1.2 Preparation of reagent blank sample
      7.1.3 Preparation internal standard check sample
      7.1.4 Preparation un-derivatized sample blank
      7.1.5 Chromatographic determination
  7.2 Quantification of isocyanates by standard addition
      7.2.1 General
      7.2.2 Preparation of standard solutions for quantification
            (0 microg/ml to 5 microg/ml)
      7.2.3 Procedure for standard addition
      7.2.4 Control sample
      7.2.5 Analysis
  7.3 Evaluation of data
      7.3.1 General
      7.3.2 HPLC interferences
8 Expression of results
  8.1 Calculation by least squares regression
  8.2 Graphical determination of using internal standard
  8.3 Precision data and detection limit
      8.3.1 General
      8.3.2 Repeatability
      8.3.3 Reproducibility
      8.3.4 Detection limits
9 Confirmation
  9.1 Requirement of confirmation
  9.2 Confirmation by re-analysis on an HPLC column of
      different elution characteristics
10 Test report
Annex A (normative) Calibration by standard addition omitting
        the internal standard
Annex B (informative)
Annex C (informative) Suggested gradient profile
Bibliography

Describes a method for the determination of individual and total levels of residual isocyanates in plastics materials and articles.

This part of this European Standard describes a method for the determination of individual and total levels of residual isocyanates in plastics materials and articles. This method is applicable to the analysis of polyurethane polymers. The total level of isocyanate monomers in materials and articles determined according to the procedure described in this standard is given in milligrams of NCO per kilogram of material or article. The method is capable of quantitative determination of individual isocyanates measured as NCO at 0,04 mg/kg and total isocyanates at 1,0 mg/kg. NOTE The method has been applied to the analysis of 9 isocyanate monomers listed in 3.1. It has not been applied to the analysis of octadecyl isocyanate, diphenylether-4,4\'-diisocyanate or 3,3\'-dimethyl-4,4\'-diisocyanatobiphenyl as samples of these monomers have not been obtained. There is no reason to anticipate that the method may not be suitable for the analysis of these monomers also.

Committee	CW/29
DevelopmentNote	Supersedes DD ENV 13130-8 & 03/312205 DC. (06/2004)
DocumentType	Standard
Pages	24
PublisherName	British Standards Institution
Status	Current
Supersedes	DD ENV 13130-8:1999 03/312205 DC : DRAFT AUG 2003

Standards	Relationship
NF EN 13130-8 : 2004	Identical
UNE-EN 13130-8:2005	Identical
EN 13130-8:2004	Identical
DIN EN 13130-8:2004-08	Identical
UNI EN 13130-8 : 2005	Identical
SN EN 13130-8 : 2004	Identical
I.S. EN 13130-8:2004	Identical
NEN EN 13130-8 : 2004	Identical
NS EN 13130-8 : 1ED 2004	Identical
NBN EN 13130-8 : 2004	Identical

ISO 5725-1:1994	Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
DIN 32645:2008-11	CHEMICAL ANALYSIS - DECISION LIMIT, DETECTION LIMIT AND DETERMINATION LIMIT UNDER REPEATABILITY CONDITIONS - TERMS, METHODS, EVALUATION
ISO 5725-2:1994	Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
EN 13130-1:2004	Materials and articles in contact with foodstuffs - Plastics substances subject to limitation - Part 1: Guide to test methods for the specific migration of substances from plastics to foods and food simulants and the determination of substances in plastics and the selection of conditions of exposure to food simulants

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BS EN 13130-8:2004

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Abstract

Scope

General Product Information

International Equivalents

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