GB/T 23985-2009 PDF English
US$70.00 · In stock · Download in 9 secondsGB/T 23985-2009: Paints and varnishes -- Determination of volatile organic compound (VOC) content -- Difference method Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 23985-2009 | English | 70 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Paints and varnishes -- Determination of volatile organic compound (VOC) content -- Difference method
| Valid |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 23985-2009
GB/T 23985-2009: Paints and varnishes -- Determination of volatile organic compound (VOC) content -- Difference 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/GBT23985-2009
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 87.040
G 50
GB/T 23985-2009 / ISO 11890-1.2007
Paints and varnishes - Determination of volatile
organic compound (VOC) content - Difference method
(ISO 11890-1.2007, Paints and varnishes - Determination of volatile
organic compound (VOC) content - Part 1.Difference method, IDT)
Issued on. JUNE 02, 2009
Implemented on. FEBRUARY 01, 2010
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the PRC;
Standardization Administration of the PRC.
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 Sampling... 7
7 Test procedure... 7
8 Calculation... 8
9 Expression of results... 10
10 Precision... 11
11 Test report... 12
Annex A (Normative) Required supplementary information... 13
Bibliography... 14
Foreword
This Standard is identical to the international standard ISO 11890-1.2007
“Paints and varnishes - Determination of volatile organic compound (VOC)
content - Part 1.Difference method” (English edition).
This Standard is identical to the translation of ISO 11890-1.2007.
For ease of use, the editorial changes to this Standard are as follows.
- Replace “this International Standard” with “this Standard”;
- Delete the Foreword to the international standard;
- For other international standards referenced in ISO 11890-1.2007, for those
which are identically adopted as Chinese standards, replace corresponding
international standards with the Chinese standards; for those which are not
identically adopted as Chinese standards, REFERENCE directly the
international standards;
- Delete “Part 1” in the name of the international standard;
- At present, in China, the water content in paints is mostly determined by
gas-chromatographic method, so in 7.5, ADD the contents of Note 3.
Annex A of this Standard is a normative annex.
This Standard was proposed by China Petroleum and Chemical Industry
Association.
This Standard shall be under the jurisdiction of National Technical Committee 5
on Paints & Pigments of Standardization Administration of China.
Drafting organizations of this Standard. CNOOC Changzhou Paint and
Coatings Industry Research Institute, Suzhou Sunmun Technology Co., Ltd.
Main drafters of this Standard. Ji Junhong, Peng Jufang, Du Changsen.
Paints and varnishes - Determination of volatile
organic compound (VOC) content - Difference 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 documents contain provisions which, through reference in this
Standard, constitute provisions of this Standard. For the dated references, their
subsequent amendments (excluding corrections) or revisions do not apply to
this Standard. However, the parties who enter into agreement based on this
Standard are encouraged to investigate whether the latest editions of these
documents are applicable. For undated reference documents, the latest
editions apply to this Standard.
3 Terms and definitions
For the purposes of this Standard, the following terms and definitions apply.
Mass of the volatile organic compounds present in a coating material, as
determined under specified conditions.
State of a product when it is mixed in accordance with the manufacturer’s
instructions in the correct proportions and thinned, if required, using the correct
thinners so that it is ready for application by the approved method.
4 Principle
After preparation of the sample, the non-volatile matter content is determined
in accordance with GB/T 1725, and the water content is determined using a
titration technique employing Karl Fischer reagent in accordance with GB/T
6283.T
5 Required supplementary information
For any particular application, the test method specified in this Standard shall
be completed by supplementary information.
6 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.
7 Test procedure
For single-component products, weigh test portions of the appropriate size (see
Table 1 in GB/T 1725-2007) into dishes as specified in GB/T 1725.Proceed in
accordance with GB/T 1725.
8 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.
9 Expression of results
If the two results (duplicates) differ by more than the value indicated in 10.2,
repeat the procedure.
10 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.
11 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.
......
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 23985-2009 be delivered?Answer: The full copy PDF of English version of GB/T 23985-2009 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 23985-2009_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 23985-2009_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 23985-2009 -- 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 23985-2009?A step-by-step guide to download PDF of GB/T 23985-2009_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 23985-2009".
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
|