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GB/T 23991-2009 English PDF

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US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 23991-2009: Determination of soluble harmful elements in the paint
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23991-2009	189	Add to Cart	3 days	Determination of soluble harmful elements in the paint	Valid

Similar standards

GB/T 23988 GB/T 23987 GB/T 23993 GB/T 23986.2 GB/T 23981.2 GB/T 23981.1

Basic data

Standard ID: GB/T 23991-2009 (GB/T23991-2009)
Description (Translated English): Determination of soluble harmful elements in the paint
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G50
Classification of International Standard: 87.040
Word Count Estimation: 8,844
Date of Issue: 2009-06-02
Date of Implementation: 2010-02-01
Quoted Standard: GB/T 6682
Regulation (derived from): Announcement of Newly Approved National Standards No. 8, 2009 (No. 148 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the coating of soluble harmful elements (antimony, arsenic, barium, cadmium, chromium, lead, mercury and selenium) content determination method. This standard applies to a variety of coatings.

GB/T 23991-2009: Determination of soluble harmful elements in the paint

---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.
Determination of soluble harmful elements in the paint ICS 87.040 G50 National Standards of People's Republic of China Determination of soluble paint content of harmful elements Posted 2009-06-02 2010-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee paint pigment. This standard was drafted. CNOOC Changzhou coating Chemical Research Institute. The main drafters of this standard. Huang Ning. Determination of soluble paint content of harmful elements

1 Scope

This standard specifies the method for the determination of soluble paint harmful elements (antimony, arsenic, barium, cadmium, chromium, lead, mercury and selenium) content. This standard applies to all kinds of coatings.

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. GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) Principle 3 With 0.07mol/L hydrochloric acid solution treatment of the coating after drying, using suitable analytical detection limit of the test solution was quantitatively measuring instrument soluble The content of the element.

4 Reagents

Analysis and testing use only recognized as analytical reagents, water used in line with GB/T 6682 in the three water requirements. 4.1 HCl. about 37% (by mass) density of about 1.18g/mL. 4.2 hydrochloric acid solution. 0.07mol/L. 4.3 hydrochloric acid solution. approximately 2mol/L. 4.4 nitric acid solution a 1. 1 (volume ratio). 4.5 antimony, arsenic, barium, cadmium, chromium, lead, mercury, selenium standard stock solution. a concentration of 100mg/L or 1000mg/L. 5. Apparatus Common laboratory equipment as well as some of the following equipment. 5.1 The detection limit appropriate (see Chapter 8) analytical instruments. such as atomic absorption spectroscopy, inductively coupled plasma atomic emission spectrometer. 5.2 crushing equipment. shredders, scissors and so on. 5.3 stainless steel metal sieve. aperture of 0.5mm. 5.4 Balance. Precision 0.1mg. 5.5 Heating and stirring device. the device should be in a constant temperature (37 ± 2) ℃ with continuous auto stirring, stir the outer layer should be teflon or glass Glass. It can also be used in a constant temperature (37 ± 2) ℃ in shaking water bath. 5.6 pH meter. accuracy of ± 0.2pH units. 5.7 membranes (for water). Aperture 0.45μm. 5.8 flask. 25mL, 50mL, 100mL like. 5.9 Pipette. 1mL, 2mL, 5mL, 10mL, 25mL, 50mL and the like. 5.10 series of chemical containers. total capacity of hydrochloric acid solution (4.2) the volume of the extraction agent 1.6 to 5.0 times. 5.11 glass or Teflon plate. All glassware, sample containers, stirring, glass or Teflon boards are required before using a nitric acid solution (4.4) soaked 24h, then washed with water and dried. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 23991-2009_English be delivered?

Answer: Upon your order, we will start to translate GB/T 23991-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 23991-2009_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 23991-2009_English will be deemed to be sold to your employer/organization who actually pays 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+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.