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GB/T 32371.4-2015: Short term method for measuring the emission properties of low-solvent or solvent-free adhesives after application -- Part 4: Determination of volatile diisocyanate
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GB/T 32371.4-2015: Short term method for measuring the emission properties of low-solvent or solvent-free adhesives after application -- Part 4: Determination of volatile diisocyanate

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Short term method for measuring the emission properties oflow-solvent or solvent-free adhesives after application - Part 4. Determination of volatile diisocyanates ICS 83.180 G38 National Standards of People's Republic of China Low-solvent or solvent-free adhesives Short-term measurements after application of the release characteristics Determination of volatile diisocyanate. Part 4 Part 4. Determinationofvolatiledisocyanates Issued on. 2015-12-31 2016-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 32371 "after low-solvent or solvent-free adhesive coated release characteristics of short-term methods of measurement" is divided into four parts. --- Part 1. General; --- Part 2. Determination of volatile organic compounds; --- Part 3. Determination of volatile aldehydes; --- Part 4. Determination of volatile diisocyanates. This section GB/T Part of 432,371. This section drafted in accordance with GB/T 1.1-2009 given rules. This part is proposed by the China Petroleum and Chemical Industry Association. The adhesive part of the National Standardization Technical Committee (SAC/TC185) centralized. This section is drafted. Shanghai Rubber Products Research Institute, Shanghai Institute of synthetic resin, People's Republic of China Shanghai Entry-Exit Inspection and Industrial and raw materials testing and Quarantine Bureau Technology Center, IKEA distribution (Shanghai) Co., Ltd., Branch Arima (Fujian) Technology Development Co., Ltd. The main drafters of this section. COMMUNIST, Liu Juanji, day by Wang, Zhang Jianqing, Jin Ying Hua, Zhang Lin, Zhao. Low-solvent or solvent-free adhesives Short-term measurements after application of the release characteristics Determination of volatile diisocyanate. Part 4

1 Scope

After this part of GB/T 32371 specifies the low-solvent or solvent-free adhesive coating, volatile diisocyanate release characteristics test methods. This section applies only to the low-solvent or solvent-free adhesive coated surface of the release was measured in the short term volatility of diisocyanate.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 32371.1 after low-solvent or solvent-free adhesive coated release characteristics of short-term methods of measurement - Part 1. General ISO 16000-9 Indoor air - Part 9. Determination of building products and furniture VOC emission test release Test cabin Act (Indoorair-Part 9. Determinationoftheemissionofvolatileorganiccompoundsfrombuilding productsandfurnishing-Emissiontestchambermethod) ISO 16702.2007 Workplace air quality using 1- (2-methoxyphenyl) piperazine and liquid chromatography in the air isocyanate The total content of ester groups can be detected [Workplaceairquality-Determinationoftotalorganicisocyanategroupsin airusing1- (2-methoxyphenyl) piperazineandliquidchromatography] Manual sampling pumps - Requirements and test methods (Workplaceatmos- EN1232 workplace atmospheric chemicals pheres-Pumpsforpersonalsamplingofchemicalagents-Requirementsandtestmethods) Principle 3 Release test collection compartment sufficient air flow rate through the appropriate 1- (2-methoxyphenyl) piperazine (1-2MP) reagent impregnated Glass fiber adsorption, air volatile isocyanate with 1-2MP react to form a non-volatile isocyanate urea derivatives. use Acetic anhydride and 1-2MP complete solution for sample analysis in toluene. The resulting solution was concentrated and dried with ultraviolet (UV) detector Or diode array detector (DAD) High Performance Liquid Chromatography (HPLC) analysis. Isocyanate reaction of the isocyanate derivatives Biological spectrum with the standard retention time and qualitative comparison, atlas by peak height or peak area quantification.

4 Reagents and materials

4.1 acetonitrile HPLC grade. 4.2 1- (2-methoxyphenyl) piperazine 1- (2-methoxyphenyl) piperazine, abbreviation. 1-2MP, purity > 98%. ...