Process of Adhesive Composition Analysis Report
Date：2026-05-08 09:28:36 Classification
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The complete process for processing the adhesive composition analysis certification report:
1、 Pre preparation stage
1. Clarify core requirements
Report purpose: To distinguish different scenarios such as e-commerce entry (requiring CMA/CNAS labeling), export compliance (such as EU REACH), production quality control, etc
Adhesive types: solvent based (chloroprene rubber), water-based (white latex), hot melt adhesive, etc. There are significant differences in testing methods for different types
2. Preparation of technical documents
Sample requirements: 2-3 representative samples (≥ 50g/part, sealed packaging), and mixed samples of upper/middle/lower layers should be taken for the adhesive in barrels
Basic information: Product manual (including ingredient list), brief description of production process (including solvents/curing agents)
List of Testing Items
Required tests: Qualitative analysis of principal components (resin/polymer type), migration of heavy metals (EN71-3 standard), VOCs content (GB33372-2020)
Test options: Phthalates (DEHP ≤ 0.1%), polycyclic aromatic hydrocarbons (PAHs), formaldehyde emissions
2、 Selection and cooperation of testing institutions
1. Qualification requirements
Must have CMA metrology certification and CNAS laboratory accreditation (report must be stamped with two seals)
Recommended institution: Dezewei Testing (CNAS registration number: L8083)
2. Process integration
Sign testing contract: clarify the standard basis (such as GB/T31818-2015 starch adhesive standard)
Confirmation period and cost: Regular 5-7 working days, urgent 3 days (cost increase of 30% -50%), single sample testing fee of about 2000 yuan (fluctuating according to the number of projects)
3、 Core testing steps (laboratory execution)
1. Sample pretreatment
Solvent based adhesive: Gas chromatography-mass spectrometry (GC-MS) is used, followed by solvent extraction and centrifugal separation
Water based adhesive: analyzed by liquid chromatography (HPLC) with ultrasound assisted extraction of water-soluble components
Filler containing adhesive: Separation of organic/inorganic components by thermogravimetric analysis (TGA)
2. Instrument analysis methods
Fourier Transform Infrared Spectroscopy (FTIR): Rapid Determination of Resin Matrix and Functional Groups
Gas chromatography-mass spectrometry (GC-MS): detection of solvent residues and small molecule additives
Inductively Coupled Plasma Mass Spectrometry (ICP-MS): Accurate Analysis of Heavy Metal Elements
3. Data validation
Parallel experiment: 3 repeated tests with an error of ≤ 5%
Validation of spiked recovery rate: The recovery rate of the target substance should be between 80% and 120%
4、 Report Acquisition and Application
1. Key points for report review
It should include the testing standard number (such as GB/T27576-2011 General Principles for Analysis of Adhesive Components), instrument model, and sample spectrum
Key information: Qualitative results of ingredients, quantitative analysis data, compliance judgment conclusions
2. Common problem handling
If unknown components are detected: the laboratory can be requested to conduct NIST spectral library search or add nuclear magnetic resonance (NMR) secondary verification
Report application: E-commerce platform entry submission, customs clearance documents, production quality control basis
If necessary, I can help you organize a comparison table of differences in adhesive composition analysis and certification for different export destinations.
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