GOST 19746-2015
GOST 19746−2015 Wire from silver solders. Specifications
GOST 19746−2015
INTERSTATE STANDARD
WIRE FROM SILVER SOLDERS
Specifications
Wire from silver solders. Specifications
ISS 77.150.99
GST 18 6390
18 6490
Date of introduction 2017−01−01
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 1.2−2009 «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. Rules 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», Joint-stock company «Ekaterinburg plant for processing non-ferrous metals"
2 as AMENDED by the Federal Agency for technical regulation and Metrology (Rosstandart)
3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (minutes of February 27, 2015 N 75-P)
The adoption voted:
| Short name of the country on MK (ISO 3166) 004−97 |
Country code MK (ISO 3166) 004−97 |
Abbreviated name of the national authority for standardization |
| Azerbaijan | AZ |
Azstandart |
| Armenia | AM |
Ministry Of Economy Of The Republic Of Armenia |
| Belarus | BY |
Gosstandart Of The Republic Of Belarus |
| Kazakhstan | KZ |
Gosstandart Of The Republic Of Kazakhstan |
| Kyrgyzstan | KG |
Kyrgyzstandard |
| Russia | EN |
Rosstandart |
| Tajikistan | TJ |
Tajikstandart |
| Uzbekistan | UZ |
Uzstandard |
4 by Order of the Federal Agency for technical regulation and Metrology of 9 June 2016 N 583-St inter-state standard GOST 19746−2015 introduced as a national standard of the Russian Federation from 1 January 2017.
5 REPLACE GOST 19746−74
Information about the changes to this standard is published in the annual reference index «National standards», and the text changes and amendments — in monthly information index «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in the 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 the wire from silver solders used for soldering and tinning in various industries.
2 Normative references
This standard uses the regulatory references to the following international standards:
GOST OIML R 76−1-2011 State system for ensuring the uniformity of measurements. Scales non-automatic actions. Part 1. Metrological and technical requirements. Test
GOST 8273−75 wrapping Paper. Specifications
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 16321.1−70 Silver-copper alloys. Method for determination of silver content
GOST 16321.2−70 Alloy silver-copper. Method of spectral analysis
GOST 16882.1−71 Silver-copper-phosphorus solders. Method of determining mass percentage of silver
GOST 16882.2−71 Silver-copper-phosphorus solders. Methods for determination of mass fraction of phosphorus, lead, iron and bismuth
GOST 16883.1−71 Silver-copper-zinc solders. Method of determining mass percentage of silver
GOST 16883.2−71 Silver-copper-zinc solders. The method of determining the mass fraction of copper
GOST 16883.3−71 Silver-copper-zinc solders. Spectral method for determination of lead, iron and bismuth
GOST 19738−2015 the silver Solders. Brand
GOST 22864−83 precious metals and their alloys. General requirements for methods of analysis
_______________
In the Russian Federation GOST R 52599−2006 «Precious metals and their alloys. General requirements for methods of analysis».
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 in the annual information index «National standards» published as on January 1 of the current year, and the editions of the monthly information index «National standards» for 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 cancelled without replacement, then the situation in which the given link applies to the extent that does not affect this link.
3 Terms and definitions
This standard applies the following terms with respective definitions:
3.1 wire: Long product with a cross section of constant size, made a drawing, rolled into a skein or wound into a coil.
3.2 skein: a length of wire, wound into a series of continuous turns.
3.3 dent: Local deepening of various sizes and shapes with sloping edges.
3.4 captivity: the Defect of the surface in the form of delamination, often azkabanu shape, elongated in the warp direction and United with the base metal on one side.
3.5 shell: the surface defects in the form of deepening of pitting from foreign matter or opening a gas bubble having an elongated or dot shape and chaotic arrangement of pitting.
3.6 stratification: a Defect in the separation of the metal layer, oriented along the direction of deformation.
3.7 traces of Stripping: the surface defects in the form of areas with high surface roughness formed after the Stripping of the sheet of abrasive tool.
3.8 crack: a Defect of the surface in the form of local rupture of metal of various sizes, having any direction.
3.9 scratch: the surface defects in the form of indentations of irregular shape and an arbitrary direction.
3.10 color tint: Defect formed on the smooth wire surface by forming a thin transparent surface oxide layer and light interference in it.
4 legend
The legend of wire are placed according to the scheme:
Example of designation of the wire from silver solders brand PSR 72, with a diameter of 0.30 mm
Wire 72 RPS 0,30 GOST 19746−2015
5 Technical requirements
5.1 Main parameters and characteristics (properties)
5.1.1 Wire from silver solders (hereinafter wire) shall conform to the requirements of this standard and be manufactured according to the technological regulations approved in the prescribed manner.
5.1.2 the diameter of the wire and limit deviation should conform to the values specified in table 1.
Table 1
In millimeters
| Nominal diameter | Limit deviation | Nominal diameter | Limit deviation |
| 0,15 | -0,02 | 1,20; 1,40; 1,60 | -0,10 |
| 0,20; 0,25; 0,30; 0,35 | -0,04 | 2,00; 2,50; 3,00 | -0,12 |
| 0,40; 0,50; 0,60 | -0,05 | 3,60; 4,00; 5,00 | -0,20 |
| 0,80; 1,00 | -0,07 | 6,00 | -0,30 |
| Notes 1 Wire solders containing more than 50% of tin, lead, or their sum, produce more with a diameter of 0.50 mm. 2 By agreement with consumer it is permitted to manufacture wire with a diameter of 0.47 and 0.64 mm from alloys of Psros A 3.5−95, Psros 3−58, 2,5 PSR, PSR 2, Psros 2−58. | |||
5.1.3 tolerances for the wire diameter of the silver solder brand PSR 45 for the following diameters shall conform to the values specified in table 2.
Table 2
In millimeters
| Nominal diameter |
Limit deviation |
| 0,80 |
-0,06 |
| 1,20 |
-0,08 |
| 1,60; 2,0 |
-0,09 |
| 2,50; 3,00 |
-0,10 |
| 3,60; 4,0; 5,0 |
-0,15 |
5.1.4 Chemical composition of the wire shall conform to the requirements of GOST 19738.
Note — By agreement with consumer it is allowed manufacture of wire of the other solders based on silver.
5.1.5 Wire is manufactured in hard (unannealed) condition.
5.1.6 the surface of the wire should not have prisoner of cracks, cavities, delaminations, and foreign inclusions.
Allowed color of a tint, a local darkening of the wire and the surface damage (dents, scratches, traces of Stripping), not bringing the wire for the limit deviation for diameter.
5.1.7 Wire diameter 0.50 mm and less shall be wound on a metal or plastic coil with a diameter of 20 mm, a wire diameter greater than 0.50 mm — rolled in coils. Internal diameter of coil shall be not less than 60 mm.
Delivery wire with a diameter of 0.35 and 0.40 mm in coils.
Wire from silver solders containing lead and tin, with a diameter of 1.50 mm and less supply the coils.
Note — the Wire solder brand Psrma 5 diameter: 0.8 mm supply on reels or in coils. The delivery agreed with the customer.
5.1.8 the Wire should be wound on a reel or folded into skeins rows, providing free spooling.
5.1.9 Each coil (a coil) consists of a single segment wire. The ends of the wire on the spool (reel) must be firmly attached.
5.1.10 the Ground wire on the coil (on the roll) shall be as defined in Appendix A.
5.1.11 Estimated weight of 1 m and physico-mechanical properties of the wire are given in appendices B and C.
5.2 Labeling, packaging
5.2.1 On the sides of each coil should be marked with a number and coil weight (to a tenth of a gram).
5.2.2 To each coil (coils) of wire attached tag which must be specified:
— trademark of the manufacturer;
— designation of wire;
— the batch number.
5.2.3 Coil (coils) of wire, wrapped in paper according to GOST 8273, placed in wooden crates or by placing between the plywood strips, wrapped in paper the churchyard 8273 and Packed in bag made of durable fabric.
The free space in the box fill with soft packaging material that protects the wire from mechanical damage.
Can be applied to other types of packaging and materials, ensuring the safety of wire during the transportation and storage.
5.2.4 On each drawer or attached to the bag tag point:
the name of the consumer;
the net mass, g;
gross mass, g;
the parcel number.
Additionally, the tag may contain other necessary information (for example, the value of the parcel, the name of the manufacturer and his address, registry, prints of the seals, the index of the storeman-packer, a stamp of technical control etc.).
Allowed transport marking under GOST 14192 with the indication of manipulation sign «Fragile. Caution."
5.2.5 Boxes (bags) sealed or sealed with seals (stamps) of the manufacturer. The seal (stamp) needs to have a clear impression.
5.2.6 gross Mass of the packing space should not exceed 15 kg.
5.2.7 Each batch of wire is accompanied by a document about quality that contains:
is the trademark or name and trademark of manufacturer;
— designation of wire;
— the batch number;
— chemical composition;
— a lot of wire in the party, g;
— number of coils (coils) in the party;
— the month and year of manufacture;
— stamp of quality control.
The document as Packed in last place, which makes the note «here Document».
6 acceptance Rules
6.1 Wire take parties. The party should consist of wire one brand of solder the same diameter. The weight of the batch is not limited.
6.2 checking the dimensions, surface finish and winding shall be subjected to 25% of the coils (coils) batch of wire.
6.3 To determine the chemical composition of a consumer selects two coils (coils) from the party, manufacturer — a sample from each heat.
6.4 Upon receipt of unsatisfactory results according to the chemical composition it is carried out re-testing at twice the sample or the sample taken from the same batch. The results of repeated tests spread to the entire party.
6.5 Physical-mechanical properties of the wire, given in Appendix b are for reference purposes only and are not controlled.
6.6 Control of marking, the test mass is subjected to each coil (coil) of wire; check packing, marking and the gross mass of each packaging place.
7 control Methods
7.1 measurement of the diameter of the wire is carried on a segment of length not less than 1 m and not less than three points tool to ensure the required accuracy.
7.2 the surface of the wire and winding quality check by visual inspection without the use of magnifying devices.
7.3 Ground wire and the gross weight of the boxes define the scales according to GOST OIML R 76−1.
7.4 Chemical composition is determined by GOST 16321.1, 16321.2 GOST, GOST 16882.1, 16882.2 GOST, GOST 16883.1, 16883.2 GOST, GOST 16883.3, GOST 22864.
Allowed to determine the chemical composition by other methods, certified in the prescribed manner and satisfies the requirements of this standard.
7.5 Marking and packaging checks visual inspection.
8 Transportation and storage
8.1 Transport, storage and recording of wire is carried out in accordance with the order of storage, transportation and accounting of precious metals.
8.2 transport and storage of wire shall be protected from contamination, mechanical damage, moisture, corrosive environments, fume sulfur compounds.
Storage conditions in climatic factors -1 (L) according GOST 15150 (table 13), the conditions of transportation — 3 according to GOST 15150 (table 13).
9 manufacturer’s Warranty
The manufacturer guarantees the conformity of the chemical composition and sizes of wire from silver solders to the requirements of this standard, under the conditions of transportation and storage prescribed by this standard.
Guaranteed storage life of wire — 10 years from the date of manufacture.
Annex a (mandatory). The ground wire from silver solders to the coil (on a reel)
Appendix A
(required)
Table A. 1
| Wire diameter, mm | Weight of wire on coil (on a reel), g, not less | |
| normal | reduced | |
| 0,15; 0,20; 0,25; 0,30; 0,35 | 200 | 10 |
| 0,40; 0,50; 0,60 | 300 | 15 |
| 0,80 | 500 | 100 |
| Of 1.00 | 1000 | 100 |
| 1,20 | 130 | |
| 1,40 | 130 | |
| 1,60 | 150 | |
| Of 2.00 | 1500 | 150 |
| 2,50 | 150 | |
| Of 3.00 | ||
