GOST 19351-2006

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  ГОСТ 19351-2006

GOST 19351−2006 Wire of iridium and rhodium. Specifications

GOST 19351−2006

Group В74

INTERSTATE STANDARD

WIRE OF IRIDIUM AND RHODIUM

Specifications

Wire made of iridium and rhodium. Specifications

ISS 77.150.99
GST 18 6190

Date of introduction 2008−01−01

Preface

Goals, basic principles and main procedure of works on interstate standardization have been established in GOST 1.0−92 «interstate standardization system. Basic provisions» and GOST 1.2−97 «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. The procedure of development, adoption, application, renewal and cancellation"

Data on standard

1 DEVELOPED by the Interstate technical Committee for standardization MTK 304 «Noble metals, alloys and industrial products thereof», the Ekaterinburg factory on processing of nonferrous metals

2 as AMENDED by the Federal Agency for technical regulation and Metrology

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (minutes No. 30 dated December 7, 2006)

The standard was accepted by voting:

Short name of the country on MK (ISO 3166) 004−97	Country code by MK (ISO 3166) 004−97	Abbreviated name of the national authority for standardization
Azerbaijan	AZ	Azstandart
Armenia	AM	Intergeneratsiya
The Republic Of Belarus	BY	Gosstandart Of The Republic Of Belarus
Kazakhstan	KZ	Gosstandart Of The Republic Of Kazakhstan
Kyrgyzstan	KG	Kyrgyzstandard
Moldova	MD	Moldova-Standard
Russian Federation	EN	Federal Agency on technical regulation and Metrology
Tajikistan	TJ	Tajikstandart
Uzbekistan	UZ	Uzstandard
Ukraine	UA	Derzhspozhyvstandart Of Ukraine

4 by Order of the Federal Agency for technical regulation and Metrology from February 15, 2007 N 15-St inter-state standard GOST 19351−2006 introduced as a national standard of the Russian Federation from January 1, 2008

5 REPLACE GOST 19351−74


Information about introduction in action (termination) of this standard is published in the index «National standards».

Information about the amendments to this standard is published in the index «National standards», and the text changes — in the information sign «National standards». In case of revision or cancellation of this standard the appropriate information will be published in the information index «National standards»

1 Scope

This standard applies to the wire of iridium and rhodium used in instrumentation and other industries.

2 Normative references

This standard uses the regulatory references to the following international standards:

GOST 427−75 Rulers measuring metal. Specifications

GOST 4381−87 Micrometers lever. General specifications

GOST 8273−75 wrapping Paper. Specifications

GOST 10197−70 Stands and tripods for the measuring heads. Specifications

GOST 12223.0−76 Iridium. Method of spectral analysis

GOST 12223.1−76 Iridium. Gravimetric method for determination of loss on heating

GOST 12227.0−76 Rhodium. Method of spectral analysis

GOST 12227.1−76 Rhodium. Gravimetric method for determination of loss on heating

GOST 13098−2006 Rhodium. Brand

GOST 13099−2006 Iridium. Brand

GOST 14192−96 Marking of cargo

GOST 15150−69 Machines, instruments and other technical products. Versions for different climatic areas. Categories, conditions of use, storage and transportation of the impact of climatic factors of the external environment

GOST 24104−2001 laboratory Scales. General technical requirements

GOST 28798−90 Head of the measuring spring. General specifications

GOST 29329−92 Scales for static weighing. General technical requirements

Note — When using this standard appropriate to test the effect of reference standards for the sign «National standards» drawn up as of January 1 of the current year and related information signs, published in the current year. If the reference document is replaced (modified), then the use of this standard should be guided by the replaced (modified) document. If the reference document is cancelled without replacement, then the situation in which the given link applies to the extent that does not affect this link.

3 Technical requirements

3.1 the Basic parameters and characteristics (properties)

3.1.1 Wire of iridium and rhodium (hereinafter, wire) shall conform to the requirements of this standard and be manufactured according to the technological regulations approved in the prescribed manner.

3.1.2 the Diameter of the wire and limit deviation should conform to the values specified in table 1.


Table 1

In millimeters

Wire diameter
The nominal value	Limit deviation
0,060	-0,013
0,070
0,080
0,090
0,100	-0,035
0,110
0,120
0,140
0,150
0,160
0,180
0,200
0,220
0,250
0,280
0,30	-0,06
0,32
0,36
0,40
0,45
0,50
0,56
0,60
0,70
0,80	-0,07
0,90
Of 1.00	-0,12
1,10
1,20
1,50
1,60
1,80
Of 2.00
2,20
2,50
2,80
Of 3.00
Of 4.00
5,00
6,00
Notes 1 Wire is made of iridium with a diameter ranging from 0.10 mm, and further in accordance with the table. 2 By agreement with the consumer it is allowed manufacture of wire of other diameters and/or other extreme deviations.

Example of designation of wire of iridium brand And 99.8 with a diameter of 0.50 mm:

Wire And 99.8 0.50 GOST 19351−2006

3.1.3 Wire shall be made of iridium brands And 99.9; And 99.8 GOST 13099 and rhodium Of 99.9 stamps Rd; Rd 99,8 GOST 13098.

3.1.4 Wire is manufactured by hot drawing.

3.1.5 the surface of the wire should not be captured, cracks, cavities. Allowed color of a tint and local darkening of the wire.

3.1.6 Wire diameter of 0.3 mm or less is wound on a metal or plastic coil with a diameter of 20 mm, a wire diameter of 0.3 mm to 1 mm inclusive is coiled into skeins. Internal diameter of coil shall be not less than 60 mm.

The wire should be wound on a reel or folded into skeins rows, providing free spooling, with no sharp kinks. The distance between the upper row of the wire and the edge of the cheeks of the coil should be at least 3 mm.

Wire with diameter more than 1 mm must be in segments of length at least 100 mm.

3.1.7 Each coil (a coil) should consist of a single segment of wire with no splices, knots. The ends of the wire on the coil (reel) must be firmly attached.

Allowed to bind the coils of wire in the Bay, cuts wire with a diameter of more than 1 mm — in bundles.

3.1.8 Mass of wire on the coil (reel) must meet the requirements specified in table 2.


Table 2

Wire diameter, mm	Weight of wire on coil (on a reel), g, not less
nominal	reduced
0,06−0,10	5,5	2,0
0,11−0,20	16,0	4,0
0,22−0,40	26,0	8,0
0,45−1,00	52,0	10,0
Notes 1 Number of coils (coils) reduced mass must not exceed: 50% for wire diameter of 0.06−0.10 mm, 20% for wire diameter of 0.11 to 1.00 mm. 2 By agreement with consumer it is permitted deviation of the mass of wire on spool (coiled) from the values listed in this table.

3.1.9 the Estimated weight of 1 m of wire of iridium and rhodium, the electrical resistance and physical properties are given in appendices A, B, V.

3.2 Marking, packaging

3.2.1 On the sides of each coil should be marked with a number and the mass of the coil (in hundredths of a gram).

3.2.2 For each coil (coils, beam) wire and attach the tag which must be specified:

— trademark of the manufacturer;

— grade metal;

— wire diameter, mm;

— the batch number;

— the designation of this standard.

3.2.3 wire Spool, Packed into plastic or cardboard boxes, and also coils (cuts, bundles) wire wrapped in paper according to GOST 8273, must be Packed in solid wooden boxes.

Can be applied to other types of packaging and materials, ensuring the safety of wire during the transportation and storage.

3.2.4 Boxes are sealed, or seal the wax seals. The seal (stamp) needs to have a clear impression of the manufacturer.

Transport marking under GOST 14192.

3.2.5 gross weight of the box should be no more than 30 kg.

3.2.6 Each batch of wire is accompanied by certificates of quality, containing the following information:

— name or name and trademark of manufacturer;

— brand of metal;

— wire diameter, mm;

— the batch number;

— number of coils (of coils, sections, beams) in the party.;

— chemical composition;

— a lot of wire in the party, g;

— the designation of this standard;

— the month and year of manufacture;

— the stamp of the technical control Department.

The document as Packed in the last box, on which is marked: «here Document».

4 acceptance Rules

4.1 Wire take parties. The party should consist of wire made of metal of the same brand, same diameter. The weight of the batch is not limited.

4.2 Verification of surface condition (3.1.5), the diameter measurement (3.1.2) and the mass of the wire (3.1.8) is subjected to each coil (a coil, cut), verification of the gross mass (3.2.5) to each drawer.

4.3 For determination of chemical composition (3.1.3) select one coil (a coil, cut) from the party.

Allowed the manufacturer to determine the chemical composition of iridium and rhodium for each cast.

4.4 Upon receipt of unsatisfactory results according to the chemical composition it is carried out re-testing at twice the sample taken from coils (coils, segments) of the same party.

The results of repeated tests apply to the entire party.

4.5 quality Control the labeling and packaging of (3.2) is subjected to each coil (a coil, cut, bundle) box.

5 control Methods

5.1 wire Diameter (3.1.2) is measured at two locations at a minimum distance of 100 mm from each other in two mutually perpendicular directions in each measured cross-section lever-type micrometer according to GOST 4381 spring or measuring head according to GOST 28798 with the rack according to GOST 10197. The length of the segments of wire (3.1.6) measuring ruler according to GOST 427.

Allowed the use of other measuring instruments providing the required accuracy.

5.2 the surface of the wire (3.1.5) and the quality of the winding (3.1.6, 3.1.7) verify by visual inspection without the use of magnifying devices.

5.3 Ground wire (3.1.8) is determined on laboratory weights according to GOST 24104. The gross weight of the boxes (3.2.5) is determined on the weights according to GOST 29329.

5.4 Chemical composition (3.1.3) define: iridium — 12223.0 GOST, GOST 12223.1, rhodium — 12227.0 GOST, GOST 12227.1.

5.5 Labeling and packaging (3.2) is checked by visual inspection.

6 Transportation and storage

6.1 Transportation, storage and accounting of wire is carried out in accordance with the rules of storage, transportation and accounting of precious metals.

Storage conditions in terms of the impact of climatic factors — according to GOST 15150, group SG.

7 manufacturer’s Warranty

7.1 the Manufacturer guarantees compliance of the wire of iridium and rhodium with the requirements of this standard, under the conditions of transportation and storage prescribed by this standard.

A storage warranty period — 25 years from date of manufacture. The date of manufacture should be the date of issue of the certificate about quality.

Annex a (informative). Estimated weight of 1 m of wire of iridium and rhodium

APPENDIX A
(reference)

Table A. 1

Wire diameter, mm	The cross-sectional area, mm	Estimated weight of 1 m of wire, g, of metal stamps
AND 99.9; AND 99.8	99,9 Rd; Rd 99,8
0,06	0,0028	-	0,0352
0,07	0,0038	-	0,0479
0,08	0,0050	-	0,0625
0,09	0,0064	-	0,0792
0,10	0,0079	0,1760	0,0977
0,11	0,0095	0,2130	0,1183
0,12	0,0113	0,2534	0,1407
0,14	0,0154	0,3450	0,1916
0,15	0,0177	0,3960	0,2199
0,16	0,0201	0,4506	0,2502
0,18	Or 0.0254	0,5702	0,3167
0,20	0,0314	0,7040	0,3909
0,22	0,0380	0,8518	0,4730
0,25	0,0491	The 1.1000	0,6108
0,28	0,0615	1,3798	0,7662
0,30	0,0707	1,5840	0,8796
0,32	0,0804	1,8022	1,0008
0,36	0,1017	2,2809	1,2666
0,40	0,1256	2,8160	1,5637
0,45	0,1590	3,5639	1,9791
0,50	0,1963	4,3999	2,4433
0,56	0,2462	5,5193	3,0649
0,60	0,2826	6,3359	3,5184
0,70	0,3847	8,6239	4,7889
0,80	0,5024	11,2638	6,2549
0,90	0,6359	14,2558	7,9163
Of 1.00	AZN 0.7850	17,5997	9,7733
1,10	0,9499	21,2956	11,8256
1,20	Seen at 1.1304	25,3436	14,0735
1,50	1,7663	39,5993	21,9898
1,60	2,0096	45,0552	25,0195
1,80	2,5434	57,0230	31,6653
Of 2.00	3,1400	70,3988	39,0930
2,20	3,7994	85,1825	47,3025
2,50	4,9063	109,9981	61,0828
2,80	6,1544	137,9816	76,6223
Of 3.00	7,0650	158,3973	87,9593
Of 4.00	12,5600	281,5952	156,3720
5,00	19,6250	439,9925	244,3313
6,00	28,2600	633,5892	351,8370

ANNEX B (reference). The electrical resistance of a wire of iridium and rhodium

APPENDIX B
(reference)

Table B. 1

Wire diameter, mm	Electrical resistance of 1 m of wire, Ohm, metal stamps
AND 99.9; AND 99.8	99,9 Rd; Rd 99,8
0,06	-	17,6929
0,07	-	12,9988
0,08	-	9,9522
0,09	-	7,8635
0,10	7,0064	6,3694
0,11	5,7904	5,2640
0,12	4,8655	4,4232
0,14	3,5747	3,2497
0,15	3,1139	2,8309
0,16	2,7369	2,4881
0,18	2,1625	1,9659
0,20	1,7516	1,5924
0,22	1,4476	1,3160
0,25	1,1210	1,0191
0,28	0,8937	0,8124
0,30	0,7785	0,7077
0,32	0,6842	0,6220
0,36	0,5406	0,4915
0,40	0,4379	0,3981
0,45	0,3460	0,3145
0,50	0,2803	0,2548
0,56	0,2234	0,2031
0,60	0,1946	0,1769
0,70	0,1430	0,1300
0,80	0,1095	0,0995
0,90	0,0865	0,0786
Of 1.00	0,0701	0,0637
1,10	0,0579	0,0526
1,20	0,0487	0,0442
1,50	0,0311	0,0283
1,60	0,0274	0,0249
1,80	0,0216	0,0197
Of 2.00	0,0175	0,0159
2,20	0,0145	0,0132
2,50	0,0112	0,0102
2,80	0,0089	0,0081
Of 3.00	0,0078	0,0071
Of 4.00	0,0044	0,0040
5,00	0,0028	0,0025
6,00	0,0019	0,0018

ANNEX b (informative). The physical properties of the wire of iridium and rhodium

THE APP
(reference)

Table B. 1

The grade of metal	Tensile strength , kgf/mm(MPa)	Electrical resistivity, μω·m	Melting point, °C	Temperature coefficient of electrical resistance, grad·10
AND 99.9; AND 99.8	80−120 (800−1200)	0,055	2445	4,0
99,9 Rd; Rd 99,8	60−100 (600−1000)	0,050	1960	4,6