ДСТУ CEN/TS 14235:2022 Материалы и изделия, контактирующие с пищевыми продуктами. Полимерный покров на металлических основаниях. Руководство по выбору условий и методов испытаний для всеобщей миграции (CEN/TS...



ДСТУ CEN/TS 14235:2022
(CEN/TS 14235:2002, IDT)

Матеріали та вироби, що контактують із харчовими продуктами.
Полімерний покрив на металевих основах. Настанова щодо
вибору умов і методів випробувань для загальної міграції

 

 
   
 
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

1 Scope 

2 Normative references

3 Terms and definitions

3.1 polymeric coating

3.2 final article

3.3 sample

3.4 test specimen 

3.5 test piece

3.6 conventional oven 

3.7 food simulant

3.8 migration test 

3.9 substitute test

3.10 test media

3.11 alternative test

3.12 extraction tests

3.13 overall migration; global migration

3.14 reduction factor 

3.15 pouch

3.16 reverse pouch

3.17 inert substrate

3.18 pressure retort or autoclave

3.19 cell 

3.20 repeatability value 'r'

3.21 reproducibility value 'R'

3.22 repeatability conditions

3.23 reproducibility conditions

4 Types of test

4.1 Migration tests

4.2 Substitute tests

4.3 Alternative tests

4.4 Criteria for the use of substitute tests

5 Food simulants, test media and reagents

5.1 Aqueous food simulants 

5.2 Fatty food simulants

5.3 Test media

5.4 Reagents

6 Selection of food simulants

6.1 General

6.2 Simulating contact with all food types 

6.3 Simulating contact with specific food types

6.4 Simulating contact with dry foods 

6.5 Testing for fatty contact 

7 Migration tests, substitute tests and alternative test conditions

7.1 Test conditions for migration tests

7.2 Test conditions for substitute tests

7.3 Test conditions for alternative tests

8 Apparatus 

8.1 Specimen supports

8.2 Tubes, glass rods and glass beads

8.3 Cells

8.4 Thermostatically controlled ovens or incubators 

9 Samples and sample geometry

9.1 Samples

9.2 Surface to volume ratio

9.3 Single surface versus double surface testing (by total immersion) 

9.4 Single surface testing using a cell

9.5 Single surface testing by pouch 

9.6 Single surface testing using a reverse pouch

9.7 Single surface testing by filling

9.8 Articles intended for repeated use

9.9 Caps, closures and other sealing devices

9.10 Food and beverage cans

9.11 Non-stick coatings

9.12 Flexible films

9.13 Large containers

9.14 Inert substrates

9.15 Tubing, taps, valves and filters

9.16 Articles of irregular shape

10 Overall migration test methods with fatty food simulants

10.1 Extraction solvents

10.2 Incomplete extraction of fat

10.3 Substances which interfere with gas chromatography

10.4 Loss of volatile substances.

10.5 Gas chromatographic column

10.6 Changes in the C18/C16 ratio

10.7 Initial mass of the test specimen

10.8 Final mass of the test specimen

10.9 Selection of the appropriate conditioning procedure

10.10 Loss of simulant due to permeation

11 Precision

12 Test reports

12.1 Surface to volume ratios in actual use

12.2 Reduction factors

12.3 Validity of results

12.4 Test report

12.5 Statements of compliance

13 Test method for overall migration into aqueous simulants by article filling from polymeric coatings on food and beverage cans and non-stick coatings

13.1 Scope

13.2 Principle

13.3 Reagents

13.4 Apparatus

13.5 Preparation of test specimens

13.6 Procedure

13.7 Expression of results

13.8 Test report

Annex A (normative) Characteristics of fatty food simulants and test media

Annex B (normative) Limit deviations on contact times and contact temperatures applicable to all clauses of this Technical Specification

Annex C (normative) Supports and cells

Bibliography