| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 2307-2009 | English | 279 |
Add to Cart
|
3 days [Need to translate]
|
Rapid determination of formaldehyde release of Wood-based panels and products. Gas analysis method
| Obsolete |
SN/T 2307-2009
|
PDF similar to SN/T 2307-2009
Basic data | Standard ID | SN/T 2307-2009 (SN/T2307-2009) | | Description (Translated English) | Rapid determination of formaldehyde release of Wood-based panels and products. Gas analysis method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | B70 | | Classification of International Standard | 79.010 | | Word Count Estimation | 7,727 | | Date of Issue | 2009-07-07 | | Date of Implementation | 2010-01-16 | | Quoted Standard | GB/T 6822; GN/T 17657-1999 | | Adopted Standard | BS EN 717-2-1995, MOD | | Regulation (derived from) | National Quality Inspection [2009] No. 290 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the rapid determination of the gas analysis panels and decorative formaldehyde liberation approach. This standard applies to the gas analysis panels and decorative Rapid Determination of formaldehyde liberation. | SN/T 2307-2009: Rapid determination of formaldehyde release of Wood-based panels and products. Gas analysis method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Rapid determination of formaldehyde release of Wood-based panels and products.Gas analysis method
Exit inspection and quarantine industry standard book People's Republic of China
Plywood and their products formaldehyde emission
Rapid Determination of the gas analysis method
Posted 2009-07-07
2010-01-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This revised standard adopts BSEN717-2.1995 "plywood and their products, formaldehyde release - Part 2. Gas Analysis" (English
Chinese Version).
This revised standard adopts BSEN717-2.1995, technical differences are as follows.
a) modify the references of normative documents;
b) increase the terms and definitions;
c) moisture content determination reference GB 17657-1999;
d) formaldehyde test method references GB 17657-1999;
e) cancel the test report indicates.
For ease of use, for BSEN717-2.1995 standard preface also made editorial changes.
Appendix A of this standard is a normative appendix.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Guangdong CIQ.
The main drafters of this standard. Guoren Hong, Zhang Zhihui, Lu Ruijiang, Duzhan You.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Plywood and their products formaldehyde emission
Rapid Determination of the gas analysis method
1 Scope
This standard specifies the method for panels and veneer plywood formaldehyde emission of the gas analysis by fluorescence microscopy.
This standard applies to gas analysis panels and decorative rapid determination of formaldehyde liberation.
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.
Laboratory use specifications and test methods GB/T 6682 Analysis
GB/T 17657-1999 panels and veneer plywood physical and chemical performance test method
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
This standard specifies the sample in a test chamber measuring unit area in unit time to release absorbed liquid (water) in the amount of formaldehyde, in milli
Grams per square meter hours [mg/(m2 · h)] FIG.
Principle 4
A sample of known surface area into a certain temperature, humidity, gas flow and pressure of the test chamber, and the sample test of formaldehyde release
Air mixing chamber, a mixed gas of formaldehyde absorbed flask continually being absorbed absorbing liquid chamber connected to the test. Spectrophotometry
Determination of the surface area of the absorbing liquid concentration of formaldehyde, formaldehyde concentration by the absorption time and the sample to calculate the formaldehyde emission of the sample, in milli
Grams per square meter hours [mg/(m2 · h)] FIG.
5 Reagents and materials
Unless otherwise indicated, reagents were analytical grade and water of at least reached GB/T 6682 provisions grade 3 purity water or deionized water.
5.1 potassium iodide (KI).
5.2 potassium dichromate (K2Cr2O7), pure class distinctions.
5.3 sodium thiosulfate (Na2S2O3 · 5H2O).
5.4 mercuric iodide (HgI2).
5.5 anhydrous sodium carbonate (Na2CO3).
5.6 sulfate (H2SO4), ρ = 1.84g/mL.
5.7 hydrochloric acid (HCl), ρ = 1.19g/mL.
5.8 Sodium hydroxide (NaOH).
5.9 iodine (I2).
5.10 soluble starch.
|