GOST R 53372-2009

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-r-53372-2009.pdf (1.43 MiB)
ГОСТ Р 53372-2009

GOST R 53372−2009 Gold. Methods of analysis

GOST R 53372−2009

Group B59

NATIONAL STANDARD OF THE RUSSIAN FEDERATION

GOLD

Methods of analysis

Gold. Methods of analysis

OKS 39.060
77.120.99

Date of introduction 2010−07−01

Preface

The objectives and principles of standardization in the Russian Federation established by the Federal law of 27 December 2002 N 184-FZ «On technical regulation», and rules for the application of national standards of the Russian Federation — GOST R 1.0−2004 «Standardization in the Russian Federation. The main provisions"

Data on standard

1 DEVELOPED by the Open joint-stock company State scientific center State scientific-research and design Institute of rare metals industry (Giredmet OJSC SSC), an Open joint stock company «Prioksky nonferrous metals plant», Federal state unitary enterprise «Moscow plant of special alloys», the Open joint-stock company «Irgiredmet» (JSC «Irgiredmet»), a Corporation «Intertech», the State institution for the formation of the State Fund of precious metals and precious stones of the Russian Federation, storage, holiday and use of precious metals and precious stones (Gokhran of Russia)

2 SUBMITTED by the Technical Committee on standardization TC 304 «Noble metals, alloys, industrial jewelry products, secondary resources containing noble metals"

3 APPROVED AND put INTO EFFECT by the Federal Agency for technical regulation and Metrology dated 30 July 2009 N 270-St

4 INTRODUCED FOR THE FIRST TIME

Information about the changes to this standard is published in the annually issued reference index «National standards», and the text changes and amendments — in monthly indexes published information «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in a monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet

1 Scope

This standard applies to refined gold with a mass fraction of gold of at least 99.95%, produced in accordance with GOST and GOST 28058 6835.

This standard specifies atomic emission (arc and spark excitation spectrum, inductively coupled plasma) and atomic absorption methods for the determination of impurities, aluminum, bismuth, gallium, iron, indium, iridium, cadmium, calcium, cobalt, silicon, magnesium, manganese, copper, arsenic, Nickel, tin, palladium, platinum, rhodium, lead, selenium, silver, antimony, tellurium, titanium, chromium, zinc affilirovannomu gold.

Methods based on excitation of atoms of the sample in arc, spark discharges, inductively coupled plasma on the excitation of atoms previously transferred in the sample solution in inductively coupled plasma flame of a gas burner or a graphite atomizer (cell), measuring the intensity of the analytical spectral line of the element and subsequent determination of the element content using the calibration characteristics obtained by the standard (calibration) samples.

Methods allow to determine the mass fraction of elements in the ranges shown in tables 1 and 2.

Table 1 — Ranges of mass fractions of elements determined by atomic emission method with arc discharge

Percentage


The designated element	Mass fraction of elements determined by atomic emission method with arc discharge
	Photographic records		Photoelectric registration
	Graphite electrodes	Cast rods	Spectrometer	Maes*
Aluminium	0,0001−0,005	-	0,0001−0,005	0,0001−0,01
Bismuth	0,0001−0,01	0,0001−0,005	0,0002−0,01	0,0001−0,01
Gallium	-	-	-	From 0.0002 to 0.02
Iron	From 0.0002 to 0.02	0,002−0,005	Of 0.0005 to 0.02	From 0.0002 to 0.02
Indium	0,0002−0,01	-	0,0002−0,01	0,0001−0,01
Iridium	0,01−0,01	-	0,001−0,01	0,0001−0,01
Cadmium	0,0002−0,003	-	0,0002−0,003	0,0001−0,01
Calcium	0,0003−0,01	-	0,0003−0,01	0,0002−0,01
Cobalt	0,0001−0,003	-	0,0001−0,003	0,0001−0,01
Silicon	Of 0.0002−0,005	0,0002−0,01	Of 0.0002−0,005	0,0001−0,01
Magnesium	0,0002−0,01	Of 0.0002−0,005	0,0002−0,01	0,0002−0,01
Manganese	0,0001−0,005	0,0001−0,01	0,0001−0,005	0,0001−0,01
Copper	0,0001−0,02	-	0,0001−0,02	0,0001−0,02
Arsenic	0,0005−0,005	-	0,0005−0,005	0,0001−0,01
Nickel	0,0001−0,005	0,0002−0,002	0,0001−0,005	0,0001−0,01
Tin	0,0002−0,01	0,0002−0,01	0,0002−0,01	0,0001−0,01
Palladium	From 0.0002 to 0.02	0,0002−0,01	Of 0.0003 to 0.02	0,0001−0,02
Platinum	0.0008 inch to 0.02	0,0002−0,01	0.0008 inch to 0.02	0,0001−0,02
Rhodium	0,0001−0,005	0,0002−0,003	0,0001−0,005	0,0001−0,01
Lead	0,0002−0,01	0,0003−0,01	0,0002−0,01	0,0001−0,01
Selenium	0,0002−0,002	-	0,0002−0,002	-
Silver	0,0001−0,02	0,0001−0,02	0,0001−0,02	0,0001−0,02
Antimony	0,0002−0,01	0,0002−0,01	0,0002−0,01	0,0001−0,01
Tellurium	0,001−0,003	-	0,001−0,003	0,0001−0,01
Titan	0,0001−0,003	-	0,0001−0,003	0,0001−0,01
Chrome	0,0001−0,005	0,0002−0,003	0,0001−0,005	0,0001−0,01
Zinc	0,0002−0,01	0,0002−0,01	0,0002−0,01	0,0001−0,01
* Maes — multi-channel atomic emission analyzer spectra.

Table 2 — Ranges of mass fractions of elements determined by atomic emission and atomic absorption methods

Percentage


The designated element	Mass fraction of elements, defined
	atomic-emission method			atomic absorption method
	with spark	inductively coupled plasma with the introduction of the sample
		from the solution	spark
Aluminium	0,0001−0,005	0,0001−0,05	-	0,0002−0,01
Bismuth	0,0002−0,01	0,0002−0,01	0,0001−0,01	0,0001−0,02
Iron	Of 0.0005 to 0.02	0,0001−0,02	0,0001−0,02	From 0.0002 to 0.02
Indium	0,0002−0,01	-	-	-
Iridium	0,001−0,01	-	-	-
Cadmium	0,0002−0,003	0,0001−0,05	-	0,0001−0,01
Calcium	0,0003−0,01	-	-	-
Cobalt	0,0001−0,003	0,0001−0,05	-	0,0001−0,01
Silicon	Of 0.0002−0,005	0,0001−0,02	0,0001−0,01	0,0002−0,01
Magnesium	0,0002−0,01	0,0001−0,01	0,0001−0,005	0,0002−0,01
Manganese	0,0001−0,005	0,0001−0,01	Of 0.0001−0,008	0,0001−0,02
Copper	0,0001−0,02	0,0001−0,02	0,0001−0,12	0,0001−0,02
Arsenic	0,0005−0,005	0,0002−0,05	Of 0.0002−0,005	0,0001−0,01
Nickel	0,0001−0,005	0,0001−0,01	Of 0.0001−0,008	0,0001−0,02
Tin	0,0002−0,01	0,0002−0,01	0,0001−0,01	0,0001−0,02
Palladium	Of 0.0003 to 0.02	0,0001−0,02	0,0001−0,024	0,0001−0,02
Platinum	0.0008 inch to 0.02	0,0001−0,02	0,0001−0,013	0,0001−0,02
Rhodium	0,0001−0,005	0,0001−0,01	0,0001−0,003	0,0001−0,02
Lead	0,0002−0,01	0,0002−0,01	0,00012−0,01	From 0.0002 to 0.02
Selenium	0,0002−0,002	-	-	-
Silver	0,0001−0,02	0,0001−0,04	0,0001−0,018	0,0001−0,02
Antimony	0,0002−0,01	0,0002−0,01	0,0001−0,01	0,0001−0,02
Tellurium	0,001−0,003	0,0002−0,05	-	0,0001−0,01
Titan	0,0001−0,003	0,0001−0,05	Of 0.00005−0.004 inch	0,0001−0,01
Chrome	0,0001−0,005	0,0001−0,01	Of 0.0001−0,008	From 0.0002 to 0.02
Zinc	0,0002−0,01	0,0001−0,01	0,0001−0,01	0,0001−0,02

2 Normative references

This standard uses the regulatory references to the following standards:

GOST R 8.563−96 State system for ensuring the uniformity of measurements. Methods of measurement

GOST R ISO 5725−1-2002 Accuracy (trueness and precision) of methods and measurement results. Part 1. General provisions and definitions

GOST R ISO 5725−3-2002 Accuracy (trueness and precision) of methods and measurement results. Part 3. Intermediate indicators the precision of a standard measurement method

GOST R ISO 5725−4-2002 Accuracy (trueness and precision) of methods and measurement results. Part 4. The main methods of determining the correctness of a standard measurement method

GOST R ISO 5725−6-2002 Accuracy (correctness and precision) of methods and measurement results. Part 6. The use of precision values in practice

GOST R 52244−2004 Palladium refined. Specifications

GOST R 52245−2004 Platinum affilirovannaja. Specifications

GOST R 52361−2005 Control of the analytical object. Terms and definitions

GOST R 52599−2006 Precious metals and their alloys. General requirements for methods of analysis

GOST 123−2008 Cobalt. Specifications

GOST 334−73 Paper scale-coordinate. Specifications

GOST 804−93 primary Magnesium ingots. Specifications

GOST 849−2008 Nickel primary. Specifications

GOST 859−2001 Copper. Brand

GOST 860−75 Tin. Specifications

GOST 1089−82 Antimony. Specifications

GOST 1467−93 Cadmium. Specifications

GOST 1770−74 laboratory Glassware measuring glass. Cylinders, beakers, flasks, test tubes. General specifications

GOST 3640−94 Zinc. Specifications

GOST 3778−98 Lead. Specifications

GOST 4055−78 Nickel (II) nitrate 6-aqueous. Specifications

GOST 4212−76 Reagents. Methods of preparation of solutions for colorimetric and nephelometric analysis

GOST 4456−75 Cadmium sulphate. Specifications

GOST 5457−75 Acetylene, dissolved and gaseous. Specifications

GOST 5556−81 Wool medical hygroscopic. Specifications

GOST 5817−77 tartaric Acid. Specifications

GOST 5905−2004 (ISO 10387:1994) metal Chrome. Technical requirements and delivery conditions

GOST 6008−90 metallic Manganese and nitrated manganese. Specifications

GOST 6709−72 distilled Water. Specifications

GOST 6835−2002 Gold and alloys on its basis. Brand

GOST 6836−2002 Silver and alloys on its basis. Brand

GOST 9428−73 Silicon (IV) oxide. Specifications

GOST 10157−79 Argon gaseous and liquid. Specifications

GOST 10928−90 Bismuth. Specifications

GOST 11069−2001 primary Aluminium. Brand

GOST 11125−84 nitric Acid of high purity. Specifications

GOST 12342−81 Rhodium powder. Specifications

GOST 13610−79 carbonyl Iron radio. Specifications

GOST 14261−77 hydrochloric Acid of high purity. Specifications

GOST 14262−78 sulphuric Acid of high purity. Specifications

GOST 17614−80 Tellurium technical. Specifications

GOST 17746−96 spongy Titanium. Specifications

GOST 18289−78 Sodium volframovich 2 water. Specifications

GOST 18300−87 ethyl rectified technical. Specifications

GOST 19658−81 Silicon monocrystalline in ingots. Specifications

GOST 20448−90 liquefied hydrocarbon Gases fuel for household consumption. Specifications

GOST 21907−76 Zirconium dioxide. Specifications

GOST 22861−93 Lead of high purity. Specifications

GOST 23620−79 of Niobium pentoxide. Specifications

GOST 24104−2001 laboratory Scales. General technical requirements

GOST 24363−80 Potassium hydroxide. Specifications

GOST 25336−82 Glassware and equipment laboratory glass. The types, basic parameters and dimensions

GOST 28058−89 Gold bullion. Specifications

GOST 28595−90 Silver bullion. Specifications

GOST 29227−91 (ISO 835−1-81) oils. Pipettes are graduated. Part 1. General requirements

GOST 29298−2005 cotton and mixed household. General specifications

Note — When using this standard appropriate to test the effect of reference standards in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet or published annually by the information sign «National standards» published as on January 1 of the current year and related information published monthly indexes published in the current year. If the reference standard is replaced (changed), when using this standard should be guided by replacing (amended) standard. If the reference standard is replaced without replacement, the position in which reference is made to it is applied in the part concerning this link.

3 Terms and definitions

This standard applies the terminology according to GOST R ISO 5725−1, GOST R 8.563, GOST 52361.

4 Accuracy (trueness and precision) of methods

4.1 Correctness

To estimate the systematic error of the methods used certified value mass fraction of elements in the state standard samples (GSO) gold (set of POPS) GSO 7287−96M or other GEO, whose set of designated impurities and metrological characteristics.

Systematic error analysis methods in accordance with GOST R ISO 5725−4незначима at a significance level of ГОСТ Р 53372-2009 Золото. Методы анализа 5% for all determined elements-impurities in gold at all levels of the designated contents.

4.2 Precision

4.2.1 the Range (scope) ГОСТ Р 53372-2009 Золото. Методы анализа of results of parallel measurements (), obtained in conditions of repeatability (convergence), can exceed the value of the limit frequency (if 2) or critical range (at 2) shown in tables 3−6, on average, no more than one time out of twenty when ГОСТ Р 53372-2009 Золото. Методы анализа of 0.95 (GOST 5725−6)

4.2.2 the Range (scope) of the two analysis results obtained under intermediate (inter-laboratory) precision (different times, different operators, same equipment), i.e. the absolute value of the difference ГОСТ Р 53372-2009 Золото. Методы анализа may exceed the value of the limit of intermediate precision indicated in the tables 3−6, the average one time out of twenty when of 0.95 (GOST 5725−3).

Table 3 — Indicators of the accuracy of atomic emission with arc and spark excitation spectrum methods of analysis ( ГОСТ Р 53372-2009 Золото. Методы анализа 0,95)

Percentage


	The accuracy rate of method of analysis
Mass fraction of detectable elements	Standard Noah deviation nie povtorju- bridges	Standard Noah deviation tion of intermediate- accurate pretsizion- ness	Standard Noah deviation nie vaspitno- clarification	The boundaries of the interval an error- ness	An- cue range	An- cue range	The limit of intermediate- accurate pretsizion- ness	The limit of rehabilitation of conductivity
0,00010	0,00002	0,00003	0,000035	0,00007	0,00007	0,00008	0,00008	0,00010
0,00020	0,00004	Of 0.00006	0,000073	0,00014	0,00015	0,00015	0,00017	0,00020
0,00050	0,00007	0,00011	0,00013	0,00025	0,00025	0,00027	0,00030	0,00036
0,00100	0,00011	0,00022	0,00026	0,00051	0,00040	0,00042	0,00060	0,00070
0,0020	0,0003	0,0005	About 0.0006	0,0012	0,0011	0,0011	0,0015	0,0018
0,0050	0,0005	0,0007	0,0009	0,0018	0,0018	0,0019	0,0020	0,0024
0,0100	0,0008	0,0014	0,0017	0,0033	0,0029	0,0030	0,0040	0,0048
0,0200	0,0014	0,0022	0,0026	0,0051	0,0051	0,0053	0,0060	0,0072

Table 4 — Indicators of the accuracy of atomic emission with inductively coupled plasma method of analysis in the introduction of the sample solution ( ГОСТ Р 53372-2009 Золото. Методы анализа 0,95)

Percentage


	The accuracy rate of method of analysis
The mass fraction determination given elements	Standard Noah deviation nie povtorju- bridges	Standard Noah deviation tion of intermediate- accurate pretsizion- ness	Standard deviation vaspitno- clarification	The boundaries of the interval an error- ness	Limit povtorju- bridges	An- cue range	The limit of intermediate- accurate pretsizion- ness	Limit vos- produ- clarification
0,00010	0,00003	0,00003	0,00004	0,00008	0,00008	0,00011	0,00008	0,00010
0,00020	0,00005	0,00005	Of 0.00006	0,00012	0,00014	0,00019	0,00014	0,00017
0,00050	0,0001	0,0001	0,00012	0,00024	0,00028	0,00036	0,00028	0,00033
0,00100	0,00015	0,00015	0,00017	0,00034	0,00042	0,00054	0,00042	0,00047
0,0020	0,0002	0,0002	0,0003	About 0.0006	0,0005	0,0007	0,0005	0,0008
0,0050	0,0003	0,0003	0,0004	0,0008	0,0008	0,0011	0,0008	0,0010
0,0100	0,0005	0,0005	About 0.0006	0,0012	0,0014	0,0018	0,0014	0,0017
0,0200	0,001	0,001	0,0012	0,0024	0,0028	0,0036	0,0028	0,0033
0,050	0,002	0,002	0,003	0,006	0,005	0,0073	0,006	0,008

Table 5 — Indicators of the accuracy of atomic emission with inductively coupled plasma method of analysis with spark sampling ( ГОСТ Р 53372-2009 Золото. Методы анализа 0,95)

Percentage


The mass fraction determination given elements	The accuracy rate of method of analysis
	The standard deviation of povtoryau bridges	The standard deviation of the intermediate pretsizion — ness	The standard deviation vosproizvel we	The boundaries of the interval error	Limit povtoryau bridges	Limit intermediate pretsizion — ness	Limit play DVDs. we
0,00005	0,000022	0,000022	0,000025	0,00005	Of 0.00006	Of 0.00006	0,00007
0,00010	0,000035	0,000035	0,000043	0,00009	0,00010	0,00010	0,00012
0,00020	Of 0.00006	Of 0.00006	0,000076	0,00015	0,00017	0,00017	0,00021
0,00050	0,00014	0,00014	0,00018	0,0004	0,0004	0,0004	0,0005
0,00100	0,00016	0,00016	0,00020	0,00040	Is 0 00 045	Is 0 00 045	0,00055
0,0020	0,00022	0,00022	0,00025	0,0005	About 0.0006	About 0.0006	0,0007
0,0050	0,00036	0,00043	0,00050	0,0010	0,0010	0,0012	0,0014
0,0100	0,00042	0,00055	0,00090	0,0018	0,0012	0,0020	0,0024
0,0250	0,00065	0,0014	0,0018	0,004	0,0018	0,004	0,005

Table 6 — Indicators of the accuracy of the atomic absorption method of analysis ( ГОСТ Р 53372-2009 Золото. Методы анализа 0,95)

Percentage


	The accuracy rate of method of analysis
Mass fraction of detectable elements	The standard deviation of povtoryau bridges	The standard deviation of the intermediate pretsizion — ness	The standard deviation vosproizvel we	The boundaries of the interval error	Limit povtoryau bridges	Limit intermediate pretsizion — ness	Limit reproduction of conductivity
0,00010	0,00002	0,00002	0,00003	Of 0.00006	0,00005	0,00005	0,00008
0,00030	0,00004	0,00004	0,00005	0,00010	0,00011	0,00011	0,00014
0,00050	0,00010	0,00010	0,00015	0,00030	0,00028	0,00028	0,00042
0,0010	0,0001	0,0001	0,00015	0,00030	0,00028	0,00028	0,00042
0,0030	0,0002	0,0003	0,0004	0,0008	0,0005	0,0008	0,0011
0,0050	0,0004	0,0004	About 0.0006	0,0012	0,0011	0,0011	0,0017
0,0100	0,0008	0,0010	0,0012	0,0024	0,0022	0,0028	0,0033
0,020	0,001	0,002	0,003	0,006	0,003	0,006	0,008

4.2.3 Range (scale) of the two analysis results obtained in different laboratories may exceed the value of the reproducibility limit ГОСТ Р 53372-2009 Золото. Методы анализа indicated in the tables 3−6, the average one time out of twenty when of 0.95 (GOST 5725−3).

4.3 Control of accuracy of analysis results

4.3.1 Control the accuracy of the results of parallel measurements

When you control the accuracy of the results of parallel measurements with ГОСТ Р 53372-2009 Золото. Методы анализа 2 the absolute value of the difference of the two results of the parallel definitions should not exceed the limit of repeatability , i.e., with confidence probability of 0.95 should meet the following condition

ГОСТ Р 53372-2009 Золото. Методы анализа . (1)

The values ГОСТ Р 53372-2009 Золото. Методы анализа given in tables 4−6.

The difference between the maximum () and minimum () of (at 2) results of parallel measurements should not exceed the standard control — critical range , i.e., with confidence probability of 0.95 should meet the following condition

ГОСТ Р 53372-2009 Золото. Методы анализа . (2)

The values ГОСТ Р 53372-2009 Золото. Методы анализа given in tables 3, 4.

If these ratios are not met, the analysis is repeated. If the range (scope) of results of parallel measurements does not exceed the critical range , i.e., if the confidence probability of 0.95 the condition

ГОСТ Р 53372-2009 Золото. Методы анализа , (3)

the result of the analysis taking the arithmetic mean value of ГОСТ Р 53372-2009 Золото. Методы анализа results of parallel measurements.

The critical range is calculated by the formula:

ГОСТ Р 53372-2009 Золото. Методы анализа , (4)

where ГОСТ Р 53372-2009 Золото. Методы анализа — the ratio of the critical range for a confidence probability of 0.95,


when 2	4	3,63,
at 4	8	4,3,
at 5	10	4,5;

ГОСТ Р 53372-2009 Золото. Методы анализа is the number of parallel definitions provided in the relevant section of the standard;

— standard deviation of repeatability are given in tables 3−6.

When you re discrepancy of obtained results with the norms for the result of the analysis taking the median of ГОСТ Р 53372-2009 Золото. Методы анализа results of parallel measurements or analysis stop, find out the reasons of unsatisfactory results, and eliminate them.

4.3.2 Control precision under intermediate (with varying factors of the operator and time) precision

When control of the intermediate (inter-laboratory) precision of the absolute value of the difference of the two results of the analysis ГОСТ Р 53372-2009 Золото. Методы анализа of the same sample must not exceed the limit of the intermediate (inter-laboratory) precision , i.e., with confidence probability of 0.95 should meet the following condition

ГОСТ Р 53372-2009 Золото. Методы анализа . (5)

The values ГОСТ Р 53372-2009 Золото. Методы анализа given in tables 3−6.

If the specified ratio is not satisfied, the analysis stops, find out the reasons of unsatisfactory results, and eliminate them.

4.3.3 Control of reproducibility

Under the control of the reproducibility of the absolute value of the difference of the two results of the analysis of the same samples obtained in two laboratories, should not exceed the limit of reproducibility ГОСТ Р 53372-2009 Золото. Методы анализа . The values given in tables 3−6. If you exceed the limit of reproducibility analysis is repeated in both laboratories. If re limit is exceeded the reproducibility of the analyses stop, find out the reasons of unsatisfactory results, and eliminate them.

4.3.4 Control of correctness of analysis results

Control of the correctness of the results of the analysis carried out by analysis of control samples. As control samples can be used not to be used for calibration of standard samples of composition of gold and also gold samples with the previously established mass fractions of impurities.

The absolute value of the difference of the result of analysis of control sample ГОСТ Р 53372-2009 Золото. Методы анализа and the accepted reference (certified) value should not exceed the critical value , i.e., with confidence probability of 0.95 should meet the following condition

ГОСТ Р 53372-2009 Золото. Методы анализа . (6)

Critical value ГОСТ Р 53372-2009 Золото. Методы анализа calculated by the formula:

ГОСТ Р 53372-2009 Золото. Методы анализа , (7)

where ГОСТ Р 53372-2009 Золото. Методы анализа — the error of setting the reference (certified) value of the content of the element impurity in the standard (control) sample;

— the boundary of the interval in which with a probability of 0.95 to find the error of the result of the analysis ГОСТ Р 53372-2009 Золото. Методы анализа . The values given in tables 3−6.

Indicators of accuracy of methods of analysis — standard deviation of repeatability (convergence) , intermediate (with varying factors of the operator and time) precision , repeatability , limit of the interval ГОСТ Р 53372-2009 Золото. Методы анализа in which the error is located with a probability of 0.95, the critical ranges for parallel definitions of the limit values of repeatability (convergence) for the two parallel definitions, intermediate (with varying factors of the operator and time) precision ГОСТ Р 53372-2009 Золото. Методы анализа and reproducibility at a confidence level of 0.95 are given in tables 3−6 for the methods of atomic-emission analysis with arc or spark excitation spectrum inductively coupled plasma and method of atomic-absorption analysis.

For intermediate values of the mass fraction values in terms of accuracy find using linear interpolation according to the formula:

ГОСТ Р 53372-2009 Золото. Методы анализа , (8)

where ГОСТ Р 53372-2009 Золото. Методы анализа — the indicator of the accuracy of the analysis result ;

— the result of the analysis;

, — the value of the indicator of accuracy, corresponding to the lower and upper bounds of the subrange of the content, which is the result of the analysis;

ГОСТ Р 53372-2009 Золото. Методы анализа , the lower and upper bounds of a subrange of the content, which is the result of the analysis.