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GB/T 23296.26-2009: Food contact materials -- Polymer -- Determination of formaldehyde and hexamethylenetetramine in food simulants -- Spectrophotometry
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Food contact materials -- Polymer -- Determination of formaldehyde and hexamethylenetetramine in food simulants -- Spectrophotometry
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GB/T 23296.26-2009
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Basic data | Standard ID | GB/T 23296.26-2009 (GB/T23296.26-2009) | | Description (Translated English) | Food contact materials -- Polymer -- Determination of formaldehyde and hexamethylenetetramine in food simulants -- Spectrophotometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | C53 | | Classification of International Standard | 67.250 | | Word Count Estimation | 15,179 | | Date of Issue | 2009-03-31 | | Date of Implementation | 2009-09-01 | | Quoted Standard | GB/T 602; GB/T 6379.2-2004; GB/T 6682; GB/T 9721; GB/T 23296.1-2009 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.3 (Total No.143) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the food simulants formaldehyde and hexamethylene tetramine (based on formaldehyde) measurement method. This standard applies to water, 3% (mass concentration) acetic acid, 10% (volume fraction) ethanol solution and olive oil four kinds of food simulants formaldehyde and hexamethylene tetramine (based on formaldehyde) determination. | GB/T 23296.26-2009: Food contact materials -- Polymer -- Determination of formaldehyde and hexamethylenetetramine in food simulants -- Spectrophotometry
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Food contact materials. Polymer. Determination of formaldehyde and hexamethylenetetramine in food simulants. Spectrophotometry
ICS 67.250
C53
National Standards of People's Republic of China
Food contact materials - Polymer
Food simulants formaldehyde and hexamethylene tetramine
The spectrophotometry
Posted 2009-03-31
2009-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Appendix A of this standard is a normative appendix, Appendix B, Appendix C is informative appendix.
This standard was proposed by the National Certification and Accreditation Administration Committee.
This standard by the National Import and Export Food Safety Inspection Standardization Technical Committee (SAC/TC445) centralized.
This standard was drafted. People's Republic of China, Ningbo Entry-Exit Inspection and Quarantine Bureau Technology Center, China Inspection and Quarantine Science RESEARCH
Study hospital, People's Republic of China Shanghai Exit Inspection and Quarantine.
The main drafters of this standard. Chenshao Hong, Sun Li, Zhu Xiaoyan, Yong Wei, Liu Mei, Chen Jianguo, Caoguo Zhou, Zhou Yuyan Huang Jiao.
Introduction
Plastic materials formaldehyde (HCHO) and hexamethylene tetramine (C6H12N4) are chemical raw materials, can be used in contact with food and prepared
Goods. Formaldehyde monomer and hexamethylene tetramine (that HMTA) may remain in the product formed in contact with the food product and migrate to the food
in. HMTA under certain conditions will decompose to produce formaldehyde, the conversion of the chemical reaction is as follows.
C6H12N4 + 6H2O → 6HCHO + 4NH3
The HMTA converted to formaldehyde after migration HMTA can be determined, the migration to this standard by measuring formaldehyde indirect HMTA
Determination of the amount that is based on this. Theoretically, when the sample is free of residual monomer formaldehyde, by measuring the conversion of formaldehyde migration HMTA
Amount, then you can come HMTA migration based on the quantitative relationship between the above reaction formula. However, third-party laboratory, it often can not be determined
Whether a given sample contains only actual formaldehyde or only HMTA, and because more concerned about the impact on human health formaldehyde, formaldehyde or HMTA
The migration limits are based on formaldehyde and formaldehyde conversion HMTA and count, so the sample migration in the present standard methods HMTA converted to formaldehyde
After the measurement, no longer calculate their migration formaldehyde and HMTA.
Food contact materials - Polymer
Food simulants formaldehyde and hexamethylene tetramine
The spectrophotometry
1 Scope
This standard specifies the food simulants formaldehyde and hexamethylene tetramine (formaldehyde meter) measurement method.
This standard applies to water, 3% (mass concentration) solution of acetic acid, 10% (volume fraction) ethanol solution and olive oil Four Food simulants
Formaldehyde and hexamethylene tetramine (formaldehyde meter) measurement.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents
(Trueness and precision) - Part 2 Accuracy GB/T 6379.2-2004 measurement methods and results. the standard measurement to determine the party
Method repeatability and reproducibility of the basic method (ISO 5725-2.1994, IDT)
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)
GB/T 9721 Chemicals General molecular absorption spectrophotometry (UV and visible part)
GB/T 23296.1-2009 plastic food contact materials restricted substances in food and food simulants to specific substances in plastics
Migration testing and determination of methods and conditions of exposure to food simulants Guide selection
3 Terms and Definitions
GB/T 23296.1-2009 and established the following terms and definitions apply to this standard.
3.1
The amount of formaldehyde in the sample residual formaldehyde monomer to food simulants migration.
3.2
Migration sample residual hexamethylene tetramine and monomeric formaldehyde in food simulants, As formaldehyde.
3.3
Migration test methods and conditions according to GB/T 23296.1-2009 provisions of a certain method for the determination of the sample to be calculated
Contact with food intended amount of formaldehyde migration.
Note. Under certain conditions, the specific migration of formaldehyde formaldehyde migration may be calculated, but also by the total migration of formaldehyde calculated.
A method of acetylacetone colorimetry
4 Method summary
After food simulant contact with the sample, the sample residual formaldehyde and hexamethylene tetramine (HMTA) migrate to simulants.
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