GOST 12550.2-82

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-125502-82.pdf (106.08 KiB)
ГОСТ 12550.2-82

GOST 12550.2−82 Alloys palladium-iridium. Methods of spectral analysis (with Change No. 1)

GOST 12550.2−82

Group B59

INTERSTATE STANDARD

ALLOYS OF PALLADIUM AND IRIDIUM

Methods of spectral analysis

Palladium-iridium alloys. Methods of analysis spectrografic

AXTU 1709

Date of introduction 1984−01−01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of nonferrous metallurgy of the USSR

DEVELOPERS

A. A. Kuranov, PhD. tech. science; N.And.Timofeyev, Cand. tech. Sciences; G. S. Haak; N. With. Stepanova, N. D. Sergienko, PhD. chem. Sciences; A. A. Osintseva; T. I. Belyaev; E. E. Safonova

2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from 22.09.82 1982 N 3703

3. INSTEAD 12550−67* in section 3
________________
* Probably a mistake of the original. Should read: GOST 12550−67. — Note the manufacturer’s database.

4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS


The designation of the reference document referenced	Section number, paragraph
GOST 3118−77	2
GOST 22864−83	1.1

5. Limitation of actions taken by Protocol No. 3−93 Interstate Council for standardization, Metrology and certification (ICS 5−6-93)

6. The re-release (December 1998) with amendment No. 1, approved in April 1988 (I & C 7−88)

This standard establishes a spectral method for the determination of platinum, rhodium, gold and iron in palladium-iridium alloys (in mass fraction of platinum and rhodium from 0.02 to 0.40% each, gold from 0.01 to 0.20% of iron and from 0.02 to 0.20%) .

The method is based on measuring the intensity of impurity lines in an arc spectrum. Quantification of the mass fraction of impurities is set by calibration with standard samples.

1. GENERAL REQUIREMENTS

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

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).

Standard samples of the enterprise.

The electrodes are made of spectral pure coal of 6 mm in diameter, sharpened to a hemisphere or a truncated cone with ground diameter of 1.5−2 mm.

Grinding machine carbon electrodes.

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

The N developer 1 and fixer.

Hydrochloric acid according to GOST 3118, diluted 1:1.

(Changed edition, Rev. N 1).

3. PREPARATION FOR ASSAY

Samples for analysis must be in the form of pieces of metal weighing 40−70 g, with a platform size of 300−400 mm ГОСТ 12550.2-82 Сплавы палладиево-иридиевые. Методы спектрального анализа (с Изменением N 1) , cleaned with a file.

The surface of the samples to remove surface contamination is boiled in hydrochloric acid (1:1) for 3 min, washed with water and dried.

4. ANALYSIS

Spectra photographed at slit width of the spectrograph 0.015 mm, the distance between the electrodes is 1.5 mm, a current of 5 A, exposure of 30 s, through a three-stage attenuator.

Analyzed and standard samples serve as the lower electrodes. As the top electrodes used carbon rods, sharpened to a hemisphere or truncated cone.

Together with the analyzed samples on the same plate photographed spectra of standard samples.

For each of the analyzed and the standard sample receive three simultaneous spectrogram.

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

(Changed edition, Rev. N 1).

5. PROCESSING OF THE RESULTS

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


Define item	Wavelength of lines of the designated element, nm	Element comparison	The wavelength of the line item comparisons, nm
Rhodium	339,68	Iridium	333,42
Platinum	270,24		270,46
Iron	259,84		260,82
Gold	267,59		267,36

Determination of the mass fraction of the elements are by the method of «three standards» with the objective photoretrieval. Build calibration graphs for each of the element. Y-axis delay value difference pucherani line defined and the base element, and the abscissa shows the values of the logarithms of the concentration of standard samples.

5.2 convergence of the method is characterized by the relative standard deviation ГОСТ 12550.2-82 Сплавы палладиево-иридиевые. Методы спектрального анализа (с Изменением N 1) of 0.15.

The final result of the analysis be the arithmetic mean of three parallel measurements under the condition of:

ГОСТ 12550.2-82 Сплавы палладиево-иридиевые. Методы спектрального анализа (с Изменением N 1) ,

where ГОСТ 12550.2-82 Сплавы палладиево-иридиевые. 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 12550.2-82 Сплавы палладиево-иридиевые. Методы спектрального анализа (с Изменением N 1) — the arithmetic mean calculated from parallel measurements (3).