GB/T 23986-2009 PDF English
US$85.00 · In stock · Download in 9 secondsGB/T 23986-2009: Paints and varnishes -- Determination of volatile organic compound (VOC) content -- Gas-chromatographic method Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Obsolete
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 23986-2009 | English | 85 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Paints and varnishes -- Determination of volatile organic compound (VOC) content -- Gas-chromatographic method
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 23986-2009
GB/T 23986-2009: Paints and varnishes -- Determination of volatile organic compound (VOC) content -- Gas-chromatographic method
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT23986-2009
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 87.040
G 58
GB/T 23986-2009 / ISO 11890-2.2006
Paints and Varnishes - Determination of Volatile
Organic Compound (VOC) Content - Gas-
chromatographic Method
(ISO 1890-2.2006, Paints and varnishes - Determination of volatile organic compound
(VOC) content - Part 2.Gas-chromatographic method, IDT)
Issued on. JUNE 02, 2009
Implemented on. FEB 1, 2010
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 5
4 Principle... 6
5 Required supplementary information... 6
6 Apparatus... 6
7 Reagents... 9
8 Sampling... 10
9 Procedure... 10
10 Calculation... 13
11 Expression of results... 14
12 Precision... 14
13 Test report... 15
Annex A (Normative) Required supplementary information... 17
Annex B (Informative) Examples of gas-chromatographic conditions... 18
Bibliography... 21
Foreword
This Standard is identical with the international standard ISO 11890-2.2006 “Paints
and Varnishes - Determination of Volatile Organic Compound (VOC) - Part 2.Gas
chromatographic” (English Version).
This Standard is equivalent to translate ISO 11890-2.2006.
For ease of use, the editorial modified contents of this Standard are as follows.
--- Use “this Standard” to replace “this international standard”;
--- Delete the foreword of the international standard;
--- For the international standards that are quoted by ISO 11890-2.2006, if those
have been equivalently adopted by the corresponding Chinese standards, then
use the corresponding Chinese standards to replace; if those are not equivalently
adopted by Chinese standards, then directly quote those international standards;
--- Delete the Part 2 of the international standard;
--- Because, currently in domestic market, the majority of determination of water
content in paint adopts gas chromatography, therefore, ADD content note 3 in
9.2.
In this Standard, Appendix A is normative, Appendix B is informative.
This Standard was proposed by China Petroleum and Chemical Industry Association.
This Standard shall be under the jurisdiction of National Standardization Technical
Committee of Paint and Color Industry.
Drafting organizations of this Standard. CNOOC Changzhou Painting Chemical
Research Institute, Kunshan Shiming Technology Development Co., Ltd.
Chief drafting staffs of this Standard. Ji Junhong, Huang Ning, Du Changsen.
Paints and Varnishes - Determination of Volatile
Organic Compound (VOC) Content - Gas-
chromatographic Method
1 Scope
This Standard is one of a series of standards dealing with the sampling and testing of
paints, varnishes and related products.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 3186 Paint, Varnishes and raw materials for paint and varnish - Sampling
(GB/T 3186-2006, ISO 15528.2000, IDT)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
Mass of the volatile organic compounds present in a coating material, as determined
under specified conditions.
4 Principle
After preparation of the sample, the VOCs are separated by a gas-chromatographic
technique. Either a hot or a cold sample injection system is used, depending on the sample
type. Hot injection is the preferred method.
5 Required supplementary information
For any particular application, the test method specified in this Standard needs to be
completed by supplementary information. The items of supplementary information are
given in Annex A.
6 Apparatus
The cold-injection system shall be provided with temperature programming for heating
from ambient to 300°C and shall have a sample splitter inlet which is made of an inert
material such as glass. The sample splitter shall be provided with silanized glass wool
packing and shall be maintained as specified in 6.2.2.The split ratio shall be adjustable
and capable of being monitored.
7 Reagents
Use an organic solvent suitable for diluting the sample. It shall have a purity of at least
99% (mass fraction) or shall be of known purity and it shall not contain any substances
which interfere with the determination, e.g.
If the term VOC is being used for compounds whose boiling points are below a defined
maximum limit (see Note 3 to 3.1), a marker compound of known purity and with a
boiling point within ± 3°C of the defined maximum limit shall be used.
8 Sampling
Take a representative sample of the product to be tested (or of each product in the
case of a multi-coat system), as specified in GB/T 3186.
9 Procedure
If required by the calculation (see 10.4 and 10.5), determine the water content, as a
percentage by mass, by the method given in GB/T 6283, selecting the reagents so that
there will be no interference from the compounds contained in the sample. If the
compounds are not known, then determine them qualitatively (see 9.4).
10 Calculation
Calculate the VOC content by the method specified in the referring specification. If no
particular method is specified, calculate the VOC content by method 1.
11 Expression of results
If the two results (duplicates) differ by more than the maximum value indicated in 12.2,
repeat the procedure.
12 Precision
The repeatability limit r is the value below which the absolute difference between two
single test results, each the mean of duplicates, obtained on identical material by one
operator in one laboratory within a short interval of time using the standardized test
method, may be expected to lie.
The reproducibilty for this test method, expressed as the reproducibility coefficient of
variation, lies between 2% ~ 11%.
13 Test report
The test report shall contain at least the following information.
Annex A
(Normative)
Required supplementary information
The items of supplementary information listed in this annex shall be supplied as
appropriate to enable the method to be carried out.
Annex B
(Informative)
Examples of gas-chromatographic conditions
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB/T 23986-2009 be delivered?Answer: The full copy PDF of English version of GB/T 23986-2009 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB/T 23986-2009_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 23986-2009_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 23986-2009 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. How to buy and download a true PDF of English version of GB/T 23986-2009?A step-by-step guide to download PDF of GB/T 23986-2009_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 23986-2009".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|