GB/T 34842-2017 in English
VALIDFootwear-Chemical tests-Determination of formamide
- Issued on:2017-11-01
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Within 1 day
$86.00
《GB/T 34842-2017鞋类 化学试验方法 甲酰胺的测定》由TC305（全国制鞋标准化技术委员会）归口，主管部门为中国轻工业联合会。
Introduction
GB/T 34842—2017 Standard Overview
GB/T 34842—2017 "Footwear Chemical Test Methods Determination of Formamide" is a Chinese standard for the detection of formamide content in foaming materials in footwear and footwear components. This standard uses gas chromatography-mass spectrometry (GC-MS) as the core analysis tool and specifies the entire process from sample collection to qualitative and quantitative testing.
Background and Significance of Standard Formulation
Formamide, as a potential toxic chemical substance, may enter the product through foaming material residues during the footwear manufacturing process. This standard came into being to protect consumer health and regulate the safety of footwear products.
This standard was proposed by the China Light Industry Federation and is under the jurisdiction of the National Technical Committee for Footwear Standardization, fully reflecting the industry consensus and technical authority.
Detection principle and method
| Step name | Operation description | Key equipment |
|---|---|---|
| Sample treatment | Weigh a representative sample, cut it into pieces and extract it with methanol. | - Analytical balance - Constant temperature water bath oscillator - Organic filter membrane |
| Qualitative detection | Compare the retention time and relative abundance with those of standard substances in selected ion scanning (SIM) mode. | - Gas Chromatography-Mass Spectrometer (GC-MS) - Electron Impact Ion Source (EI) |
| Quantitative Detection | Based on the standard working curve, the external standard method is used for quantitative calculation. | - Chromatographic Column (VF-WAXms) - Injector |
Standard Implementation Recommendations
Case Study: Optimization of Detection Process
- Sample Preparation: It is recommended to use a homogenizer to assist in shearing to ensure uniform sample particles.
- Extraction efficiency:Control the oscillation time and temperature. It is recommended to use a strict standard of 90 minutes ± 5%.
- Instrument calibration:Regularly calibrate the GC-MS equipment, especially the ion source and injection port temperature parameters.
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB 30585-2024 in English
Safety technical specifications for infants' and children's footwear
2024-05-28 -
GB/T 19706-2015 in English
Football shoes
2015-12-31 -
GB/T 6677-2008 in English
Classification of cloth shoes
2008-12-30 -
GB/T 43001-2023 in English
Footwear—Test methods for uppers—Resistance to rubbing using a rubber strip
2023-09-07 -
GB/T 21284-2015 in English
Footwear—Test methods for whole shoe—Thermal insulation
2015-09-11 -
GB/T 42170-2022 in English
Footwear—Test methods for hollow and compact heels with top pieces—Top piece attachment strength
2022-12-30 -
GB/T 46974-2025 in English
Footwear—Chemical tests—Determination of short-chain chlorinated paraffins
2025-12-31 -
GB/T 30397-2013 in English
Test Method for Leather Shoes - Water Vapour Absorption and Permeability
2013-12-31 -
GB/T 22049-2019 in English
Footwear—Standard atmospheres for conditioning and testing of footwear and components for footwear
2019-08-30
