This Part of GB/T 2912 specifies a method for determining the amount of formaldehyde released under the conditions of accelerated storage from textiles in any form by means of a vapour absorption method.
This Part is intended for use in the range of releasable formaldehyde on the fabric between 20 mg/kg and 3500 mg/kg. The detection limit is 20 mg/kg. Below this limit the result is reported as "not-detectable".
Foreword I 1 Scope 2 Normative References 3 Principle 4 Reagents 5 Apparatus 6 Preparation of Formaldehyde Standard Solution and Calibration 7 Sample Preparation 8 Operation Procedures 9 Calculation and Expression Mode of Results 10 Test Report Appendix A (Normative) Calibration of Formaldehyde Stock Solution - Sodium Sulfite Method Appendix B (Normative) Calibration of Formaldehyde Stock Solution - Iodometric Method Appendix C (Informative) Alternative Operation Procedure Using Chromotropic Acid In Place of Acetylacetone Appendix D (Informative) Information on Accuracy of the Test
This Part of GB/T 2912 specifies a method for determining the amount of formaldehyde released under the conditions of accelerated storage from textiles in any form by means of a vapour absorption method.
This Part is intended for use in the range of releasable formaldehyde on the fabric between 20 mg/kg and 3500 mg/kg. The detection limit is 20 mg/kg. Below this limit the result is reported as "not-detectable".
Contents of GB/T 2912.2-2009
Foreword I
1 Scope
2 Normative References
3 Principle
4 Reagents
5 Apparatus
6 Preparation of Formaldehyde Standard Solution and Calibration
7 Sample Preparation
8 Operation Procedures
9 Calculation and Expression Mode of Results
10 Test Report
Appendix A (Normative) Calibration of Formaldehyde Stock Solution - Sodium Sulfite Method
Appendix B (Normative) Calibration of Formaldehyde Stock Solution - Iodometric Method
Appendix C (Informative) Alternative Operation Procedure Using Chromotropic Acid In Place of Acetylacetone
Appendix D (Informative) Information on Accuracy of the Test
