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GB/T 6581-2007: Glass resistance to attack by hydrochloric acid at 100 Celsius -- Flame emission or flame atomic absorption spectrometric method
Status: Valid GB/T 6581: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 6581-2007 | English | 159 |
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Glass resistance to attack by hydrochloric acid at 100 Celsius -- Flame emission or flame atomic absorption spectrometric method
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GB/T 6581-2007
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| GB/T 6581-1986 | English | 199 |
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Glass--Resistance to attack by hydrochloric acid at 100 centigrade--Flame emission or atomic absorption spectrometric method
| Obsolete |
GB/T 6581-1986
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PDF similar to GB/T 6581-2007
Basic data | Standard ID | GB/T 6581-2007 (GB/T6581-2007) | | Description (Translated English) | Glass resistance to attack by hydrochloric acid at 100 Celsius -- Flame emission or flame atomic absorption spectrometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y22 | | Classification of International Standard | 81.040.30 | | Word Count Estimation | 6,679 | | Date of Issue | 2007-12-05 | | Date of Implementation | 2008-09-01 | | Older Standard (superseded by this standard) | GB/T 6581-1986 | | Adopted Standard | ISO 1776-1985, MOD | | Regulation (derived from) | China National Standard Approval Announcement2007 No.13 (Total No.113) | | 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 method by flame atomic absorption spectrometry launch or glass resistant to attack by hydrochloric acid solution at 100��C for. Acid resistance of the glass surface with the precipitation unit to represent the quality of the basic oxide. This standard applies to borosilicate glass products with good acid resistance, if the sample after acid pretreatment, can also be measured glass acid resistance. | GB/T 6581-2007: Glass resistance to attack by hydrochloric acid at 100 Celsius -- Flame emission or flame atomic absorption spectrometric 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.
Glass resistance to attack by hydrochloric acid at 100 Celsius - Flame emission or flame atomic absorption spectrometric method
ICS 81.040.30
Y22
National Standards of People's Republic of China
Replacing GB/T 6581-1986
Glass - Resistance to attack by hydrochloric acid at 100 ℃ flame emission or
Atomic absorption spectrometric method
(ISO 1776. 1985, MOD)
Posted 2007-12-05
2008-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This revised standard adopts the International Standard ISO 1776. 1985 "Glass at 100 ℃ resistant to attack by hydrochloric acid emission or flame atomic absorption
Spectrometric method. " This standard is the international standard ISO 1776. 1985 The main differences are as follows.
--- The International Standard ISO 1776. 1985 in an oil bath 8.2 to sand bath, the test is more convenient;
--- Quartz glass flasks instead platinum dish so easy to operate, and can eliminate the interference caused by trace elements contained in quartz containers, mention
High testing accuracy;
--- Test solution to the flask placed into 5mL 10mL volumetric flask, and the solution volume enlarge doubled, using measuring instruments
When testing, the full amount of the solution easier to achieve satisfactory results.
This standard replaces GB/T 6581-1986 "glass resistant to attack by hydrochloric acid at 100 ℃ flame emission or atomic absorption spectrometry"
The main changes are as follows.
--- Quartz glass flasks instead platinum dish so easy to operate, and can eliminate the interference caused by trace elements contained in quartz containers, mention
High testing accuracy;
--- Test solution to the flask placed into 5mL 10mL volumetric flask, and the solution volume enlarge doubled, using measuring instruments
When testing, the full amount of the solution easier to achieve satisfactory results.
The standard proposed by China National Light Industry Council.
This standard by the National Standardization Technical Committee Instrument glass.
This standard was drafted. Glass National Light Industry Product Quality Supervision and Inspection Center.
The main drafters of this standard. Lee Mi-Young, Yuan Chunmei.
Glass - Resistance to attack by hydrochloric acid at 100 ℃ flame emission or
Atomic absorption spectrometric method
1 Scope
This standard specifies the method by flame emission spectroscopy or atomic absorption glass resistant to attack by hydrochloric acid at 100 ℃ solution. glass
Acid precipitation with a surface area per unit mass of alkaline oxides to represent.
This standard applies to borosilicate glass products have good acid resistance, if the samples after acid pretreatment, can also be measured glass resistance
Acidity.
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
3 Test principle
Determination of the unit after the glass samples 30cm2 ~ 40cm2 etching 3h at 100 ℃ 6mol L hydrochloric acid/alkaline precipitation in surface area
Quality oxide.
4 Reagents
Chemically pure or chemically pure reagents above.
4.1 Secondary distilled or deionized water. should comply with GB/T 6682 requirements.
4.2 hydrochloric acid (GB 622). pure class distinctions.
4.3 2mol/L hydrochloric acid. amount of 167mL of hydrochloric acid (4.2) was diluted to 1L, namely 2mol L hydrochloric acid /.
4.4 6mol/L hydrochloric acid. amount of 500mL of hydrochloric acid (4.2) was diluted to 1L, namely 6mol L hydrochloric acid /.
4.5 hydrofluoric acid (GB/T 620-1993). excellent pure, 40% (mass fraction).
Radiation 4.6 buffer. The 250g of aluminum nitrate (HG3-928) and 50g cesium chloride (HG3-938) was dissolved in water and diluted to 1L.
4.7 sodium oxide, potassium standard solution. formulated with sodium chloride and potassium chloride reference reagents.
4.8 ethanol or acetone.
5 main instruments, equipment, tools
5.1 Oven. for 100 ℃ ± 1 ℃.
5.2 Oven. for 130 ℃.
5.3 flame photometer or atomic absorption spectrometer. 10mL test solution suitable for the operation. Flame photometer, atomic absorption spectrometer technology means
Mark. sodium wavelength of 589nm ± 1nm, sodium sensitivity not less than 0.006μg/mL.
5.4 vernier caliper. dividing the value of 0.02mm.
5.5 Teflon pan with lid. The material should be dense, mouth dish with male thread, with four fulcrum of the same material on the bottom, the volume of about 70mL,
Wall thickness of about 5mm, diameter of about 60mm, internal height of about 25mm, cover the dish with a female thread, and the dish can be in close agreement, which has a diameter of a cover
5mm for the hole in order to insert a chemical etching tube filled with glycerol, will test a nickel-chromium copper thermocouple inserted into the tube to control
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