GOST 12551.2-82

GOST 33729-2016 GOST 20996.3-2016 GOST 31921-2012 GOST 33730-2016 GOST 12342-2015 GOST 19738-2015 GOST 28595-2015 GOST 28058-2015 GOST 20996.11-2015 GOST 9816.5-2014 GOST 20996.12-2014 GOST 20996.7-2014 GOST P 56306-2014 GOST P 56308-2014 GOST 20996.1-2014 GOST 20996.2-2014 GOST 20996.0-2014 GOST 16273.1-2014 GOST 9816.0-2014 GOST 9816.4-2014 GOST P 56142-2014 STATE STANDARD P 54493-2011 GOST 13498-2010 STATE STANDARD P 54335-2011 GOST 13462-2010 STATE STANDARD P 54313-2011 GOST P 53372-2009 GOST P 53197-2008 GOST P 53196-2008 GOST P 52955-2008 GOST P 50429.9-92 GOST 6836-2002 GOST 6835-2002 GOST 18337-95 GOST 13637.9-93 GOST 13637.8-93 GOST 13637.7-93 GOST 13637.6-93 GOST 13637.5-93 GOST 13637.4-93 GOST 13637.3-93 GOST 13637.2-93 GOST 13637.1-93 GOST 13637.0-93 STATE STANDARD 13099-2006 GOST 13098-2006 GOST 10297-94 GOST 12562.1-82 GOST 12564.2-83 GOST 16321.2-70 GOST 4658-73 GOST 12227.1-76 GOST 16274.0-77 GOST 16274.1-77 GOST 22519.5-77 GOST 22720.4-77 GOST 22519.4-77 GOST 22720.2-77 GOST 22519.6-77 GOST 13462-79 GOST 23862.24-79 GOST 23862.35-79 GOST 23862.15-79 GOST 23862.29-79 GOST 24392-80 GOST 20997.5-81 GOST 24977.1-81 GOST 25278.8-82 GOST 20996.11-82 GOST 25278.5-82 GOST 1367.7-83 GOST 26239.9-84 GOST 26473.1-85 GOST 16273.1-85 GOST 26473.2-85 GOST 26473.6-85 GOST 25278.15-87 GOST 12223.1-76 GOST 12645.7-77 GOST 12645.1-77 GOST 12645.6-77 GOST 22720.3-77 GOST 12645.4-77 GOST 22519.7-77 GOST 22519.2-77 GOST 22519.0-77 GOST 12645.5-77 GOST 22517-77 GOST 12645.2-77 GOST 16274.9-77 GOST 16274.5-77 GOST 22720.0-77 GOST 22519.3-77 GOST 12560.1-78 GOST 12558.1-78 GOST 12561.2-78 GOST 12228.2-78 GOST 18385.4-79 GOST 23862.30-79 GOST 18385.3-79 GOST 23862.6-79 GOST 23862.0-79 GOST 23685-79 GOST 23862.31-79 GOST 23862.18-79 GOST 23862.7-79 GOST 23862.1-79 GOST 23862.20-79 GOST 23862.26-79 GOST 23862.23-79 GOST 23862.33-79 GOST 23862.10-79 GOST 23862.8-79 GOST 23862.2-79 GOST 23862.9-79 GOST 23862.12-79 GOST 23862.13-79 GOST 23862.14-79 GOST 12225-80 GOST 16099-80 GOST 16153-80 GOST 20997.2-81 GOST 20997.3-81 GOST 24977.2-81 GOST 24977.3-81 GOST 20996.4-82 GOST 14338.2-82 GOST 25278.10-82 GOST 20996.7-82 GOST 25278.4-82 GOST 12556.1-82 GOST 14339.1-82 GOST 25278.9-82 GOST 25278.1-82 GOST 20996.9-82 GOST 12554.1-83 GOST 1367.4-83 GOST 12555.1-83 GOST 1367.6-83 GOST 1367.3-83 GOST 1367.9-83 GOST 1367.10-83 GOST 12554.2-83 GOST 26239.4-84 GOST 9816.2-84 GOST 26473.9-85 GOST 26473.0-85 GOST 12645.11-86 GOST 12645.12-86 GOST 8775.3-87 GOST 27973.0-88 GOST 18904.8-89 GOST 18904.6-89 GOST 18385.0-89 GOST 14339.5-91 GOST 14339.3-91 GOST 29103-91 GOST 16321.1-70 GOST 16883.2-71 GOST 16882.1-71 GOST 12223.0-76 GOST 12552.2-77 GOST 12645.3-77 GOST 16274.2-77 GOST 16274.10-77 GOST 12552.1-77 GOST 22720.1-77 GOST 16274.4-77 GOST 16274.7-77 GOST 12228.1-78 GOST 12561.1-78 GOST 12558.2-78 GOST 12224.1-78 GOST 23862.22-79 GOST 23862.21-79 GOST 23687.2-79 GOST 23862.25-79 GOST 23862.19-79 GOST 23862.4-79 GOST 18385.1-79 GOST 23687.1-79 GOST 23862.34-79 GOST 23862.17-79 GOST 23862.27-79 GOST 17614-80 GOST 12340-81 GOST 31291-2005 GOST 20997.1-81 GOST 20997.4-81 GOST 20996.2-82 GOST 12551.2-82 GOST 12559.1-82 GOST 1089-82 GOST 12550.1-82 GOST 20996.5-82 GOST 20996.3-82 GOST 12550.2-82 GOST 20996.8-82 GOST 14338.4-82 GOST 25278.12-82 GOST 25278.11-82 GOST 12551.1-82 GOST 25278.3-82 GOST 20996.6-82 GOST 25278.6-82 GOST 14338.1-82 GOST 14339.4-82 GOST 20996.10-82 GOST 20996.1-82 GOST 12645.9-83 GOST 12563.2-83 GOST 19709.1-83 GOST 1367.11-83 GOST 1367.0-83 GOST 19709.2-83 GOST 12645.0-83 GOST 12555.2-83 GOST 1367.1-83 GOST 9816.3-84 GOST 9816.4-84 GOST 9816.1-84 GOST 9816.0-84 GOST 26468-85 GOST 26473.11-85 GOST 26473.12-85 GOST 26473.5-85 GOST 26473.7-85 GOST 16273.0-85 GOST 26473.3-85 GOST 26473.8-85 GOST 26473.13-85 GOST 25278.13-87 GOST 25278.14-87 GOST 8775.1-87 GOST 25278.17-87 GOST 18904.1-89 GOST 18904.0-89 STATE STANDARD P 51572-2000 GOST 14316-91 GOST P 51704-2001 GOST 16883.1-71 GOST 16882.2-71 GOST 16883.3-71 GOST 8774-75 GOST 12227.0-76 GOST 12797-77 GOST 16274.3-77 GOST 12553.1-77 GOST 12553.2-77 GOST 16274.6-77 GOST 22519.1-77 GOST 16274.8-77 GOST 12560.2-78 GOST 23862.11-79 GOST 23862.36-79 GOST 23862.3-79 GOST 23862.5-79 GOST 18385.2-79 GOST 23862.28-79 GOST 16100-79 GOST 23862.16-79 GOST 23862.32-79 GOST 20997.0-81 GOST 14339.2-82 GOST 12562.2-82 GOST 25278.7-82 GOST 20996.12-82 GOST 12645.8-82 GOST 20996.0-82 GOST 12556.2-82 GOST 25278.2-82 GOST 12564.1-83 GOST 1367.5-83 GOST 25948-83 GOST 1367.8-83 GOST 1367.2-83 GOST 12563.1-83 GOST 9816.5-84 GOST 26473.4-85 GOST 26473.10-85 GOST 12645.10-86 GOST 8775.2-87 GOST 25278.16-87 GOST 8775.0-87 GOST 8775.4-87 GOST 12645.13-87 GOST 27973.3-88 GOST 27973.1-88 GOST 27973.2-88 GOST 18385.6-89 GOST 18385.7-89 GOST 28058-89 GOST 18385.5-89 GOST 10928-90 GOST 14338.3-91 GOST 10298-79 GOST P 51784-2001 GOST 15527-2004 GOST 28595-90 GOST 28353.1-89 GOST 28353.0-89 GOST 28353.2-89 GOST 28353.3-89 STATE STANDARD P 52599-2006

gost-125512-82.pdf (106.77 KiB)
ГОСТ 12551.2-82

GOST 12551.2−82 Alloys platinum-copper. Methods of spectral analysis (with Change No. 1)

GOST 12551.2−82

Group B59

STATE STANDARD OF THE USSR

ALLOYS PLATINUM-COPPER

Methods of spectral analysis

Alloys platinum-copper. Methods of spectral analysis

AXTU 1709*
______________
* Introduced advanced Edit. N 1.

Valid from 01.01.84
to 01.01.89*
_________________________________
* Expiration removed by Protocol No. 3−93
The interstate Council for standardization,
Metrology and certification (ICS No. 5/6, 1993). -
Note the manufacturer’s database.

DEVELOPED by the Ministry of nonferrous metallurgy of the USSR

PERFORMERS

A. A. Kuranov, G. S. HAK, N. With. Stepanova, N. D. Sergienko, I. G., Sazhin, T. I. Belyaeva, E. B. Safonov

INTRODUCED by the Ministry of nonferrous metallurgy of the USSR

Zam. Minister Vladimir Boroday

APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards, dated 30 September 1982, N 3866

REPLACE GOST 12551−67 in part of sec. 3

The Change N 1, approved and put into effect by the Decree of the USSR State Committee for standards from 20.04.88 N 1085 from 01.01.89

Change No. 1 made by the manufacturer of the database in the text ICS N 7, 1988

This standard specifies the method of spectral determination of rhodium, iridium, gold, palladium and iron in the platinum-copper alloy (with a mass fraction of rhodium and iridium from 0.02 to 0.20% each, gold and palladium from 0.005 to 0.100% of each of iron and from 0.01 to 0.10%).

The method is based on measuring the intensity of impurity lines in an arc spectrum. Quantitative assessment of concentrations of pollutants are set by calibration with standard samples.

1. GENERAL REQUIREMENTS

1.1. General requirements for method of analysis according to GOST 22864−83.

(Changed edition, Rev. N 1).

1.2. The numerical value of the result of the analysis must end with a digit of the same rank as that of the normalized indicator grade composition.

(Added, Rev. N 1).

2. APPARATUS, REAGENTS AND SOLUTIONS

The quartz spectrograph medium dispersion.

Arc generator of alternating current.

The three-stage attenuator.

Microphotometer.

Clips (electrode holders), provided with water cooling.

Standard samples of the enterprise.

Furnace for melting beads.

Graphite crucibles for melting beads.

Silver GOST 6836−80* brand 999,9.
________________
* On the territory of the Russian Federation GOST 6836−2002. — Note the manufacturer’s database.

Photographic plates of the spectral type II sensitivity of 10−15 conventional units.

Developer N 1 fixer.

Hydrochloric acid by the GOST 3118−77 and diluted 1:1.

Mixture of nitric and hydrochloric acids with water in the ratio 1:4:10.

(Changed edition, Rev. N 1).

3. PREPARATION FOR ASSAY

3.1. Samples for analysis must be in the form of strips or chips.

To remove surface contamination, the samples were placed in a glass, pour hydrochloric acid (1:1), boil 2 min, washed with water and dried.

3.2. To obtain Korolkov standard and analyzed samples sample mass 1.6 g (with mass fraction of copper from 2.0 to 3.0%) and 1.5 g (at a mass fraction of copper from 8.0 to 9.0%) two for each is placed in a graphite crucible, is added, respectively, 0.4 or 0.5 g of silver and melt.

Chilled Wren press press or prokovyvayut to 10 mm in diameter, placed in glasses, pour a mixture of acids is heated to weak staining solution, washed with water and dried.

Flattened kinglet serve as electrodes for analysis.

4. ANALYSIS

4.1. Photographing spectra is carried out at a slit width of the spectrograph 0.02 mm, a distance between electrodes of 1.5 mm, a current of 5 A, exposure 30 s. the Wrens are installed in the clips, provided with water cooling.

The spectra photographed using a three-step attenuator on the photographic plate of the type II.

For each standard and test sample receive three spectrograms.

A photographic plate showing within 3 to 6 min at developer temperature of 20 °C, rinsed in water, fixed, washed in running water, dried and photometric.

5. PROCESSING OF THE RESULTS

5.1. Wavelength of analytical spectral lines is given in the table.


The designated element	Wavelength of lines of the designated element, nm	Element comparison	The wavelength of the line item comparisons, nm
Rhodium	365,80	Platinum	366,31
Palladium	355,31		348,34
Iridium	269,42		267,46
Gold	267,59		267,46
Iron	259,96		267,46

5.2. Determination of the mass fraction of the elements are by the method of «three standards» with the objective photoretrieval; the calibration graphs built for each analyzed element. Y-axis delay value difference pucherani lines of impurities and the main substances, and the horizontal axis — the values of the logarithms of the concentrations of standard samples.

With the help of calibration curve by the known values of the difference of pochernenija find the contents of the analyzed element in the sample.

5.3. The convergence of the method is characterized by the relative standard deviation ГОСТ 12551.2-82 Сплавы платино-медные. Методы спектрального анализа (с Изменением N 1) of 0.15.

For the results analysis be the arithmetic mean of three parallel measurements under the condition of

ГОСТ 12551.2-82 Сплавы платино-медные. Методы спектрального анализа (с Изменением N 1) ,

where ГОСТ 12551.2-82 Сплавы платино-медные. Методы спектрального анализа (с Изменением N 1) is the greatest result of the parallel measurements;

least the result of the parallel measurements;

— relative standard deviation describing repeatability of measurements;

ГОСТ 12551.2-82 Сплавы платино-медные. Методы спектрального анализа (с Изменением N 1) — the arithmetic mean calculated from parallel measurements (3).