GOST 18394-73

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  ГОСТ 18394-73

GOST 18394−73 lead Foil plated with tin, and tin. Specifications (with Change No. 1)

GOST 18394−73
Group В53

STATE STANDARD СОЮ3А SSR
LEAD FOIL PLATED WITH TIN, AND TIN
Specifications
Tin plated lead foil and tin foil. Specifications*

GST 18 3540**
_________________
* The name of the standard. Changed the wording, Rev. N 1.
** Added, Rev. N 1.

Date of introduction 1974−01−01

The decision of the State standards Committee of the Council of Ministers of the USSR from February 2, 1973 N 247 the validity period is set with 01.01.1974 G.

Checked in 1978, the Term of validity extended to 01.01.1984.

__________

* Expiration removed by Protocol No. 3−93 Interstate Council for standardization, Metrology and certification. (IUS No. 5/6, 1993). — Note the manufacturer’s database.

INSTEAD 1327−47 GOST and GOST 1328−47

REPRINTING. November 1978

The Change N 1, approved and put into effect by the Decree of the USSR State Committee for standards from 03.03.83 N 1080 with 01.09.83

Change No. 1 made by the manufacturer of the database in the text IUS N 6, 1983


This standard applies to lead, planirovaniyu tin and tin foil (sheets) used in electrotechnical industry, instrument making and other industries.

1. ASSORTMENT

1.1. The size and weight of the foil sheets must conform to the requirements given in table.1.

Table 1

Notes:

1. At the request of the consumer, the foil is made of any width and length within the dimensions specified in table.1. Can be manufactured in foil sheets of smaller size in an amount up to 15% of the batch by weight.

2. When calculating the theoretical mass of the foil density is taken equal to g/cm:

tin foil is 7.3;

for lead foil plated with tin and 11.1.


(Changed edition, Rev. N 1).

1.2. Legend foil are put on the scheme

When the following abbreviations:

method of manufacture:

cold rolled steel D

Sectional shape:

rectangular — PR

length:

dimensional — MD

brand:

tin —

lead plated with tin — P.

Instead of the absent indicator is sign X.

Example of designation foil cold-rolled, rectangular section, thickness 0,050 mm, width 200 mm, length 400 mm, tin:

Foil DPHH 0,050х200х400 MD On GOST 18394−73

(Changed edition, Rev. N 1).

2. TECHNICAL REQUIREMENTS

2.1. Foil should be manufactured in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

(Added, Rev. N 1).

2.1. Sheets of tin foil are made of an alloy consisting of tin not below grade 02 GOST 860−75 doped antimony is not below grade SS2 according to GOST 1089−82, they must have the chemical composition specified in table.2.

Table 2

%

2.2. Sheets of lead foil plated with tin, the main layer should be the lead not below grade C3 according to GOST 3778−77* (ST SEV 142−75) doped with antimony in an amount of from 1.9 to 3.1 percent (not below grade SS2 according to GOST 1089−82) and tin in an amount of from 1.0 to 3.0% (not below grade 02 GOST 860−75).
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* On the territory of the Russian Federation GOST 3778−98. — Note the manufacturer’s database.

2.3. Sheets of lead foil planiruyut on both sides with a layer of tin. For plating use alloy of tin and antimony corresponding to the chemical composition of tin foil specified in clause 2.1. The thickness of the cladding layer on each side of the foil should be the same and the sum of both cladding layers should be from 5 to 8% of the thickness of foil sheet.

Note. By agreement between the consumer and the manufacturer allowed a plating layer of tin brand 03 to GOST 860−75 with antimony content is from 1.9 to 3.1%, copper up to 0.2 percent and lead is down to 3%.

2.1−2.3. (Changed edition, Rev. N 1).

2.4. A plating layer of tin should not separate from the lead Foundation.

2.5. The surface of the foil sheets must be clean, flat, smooth, with one side shiny. On the other side of the sheet is allowed opacity. The surface of the sheets must not have foreign inclusions, captive, breaks, clamps, dents, signs of corrosion and holes that are visible when examining against the light.

Permitted isolated small holes that are visible when examining against the light without the use of magnifying devices that do not have a stroke location or local clusters; a strip of lubricant is not more than 10% of the total number of sheets; grease stains easily removable with organic solvents.

The quality of the surface can be determined by standard samples agreed between the manufacturer and the consumer in the prescribed manner.

(Changed edition, Rev. N 1).

2.6. The foil sheets need to be trimmed in a pack exactly the right angle. Cut end Squareness, mm should take the tile dimensions tolerance on width and length.

2.7. The foil sheets should be free to separate from one another.

3. ACCEPTANCE RULES

3.1. (Deleted, Rev. N 1).

3.2. Foil take parties. The party should consist of a foil of one brand of metal the same size and decorated the same document about quality that contains:

trademark or a trademark and the name of the manufacturer;

the brand of metal;

the results of chemical analysis;

the size of the sheets;

the weight of the party;

batch number;

the designation of this standard.

The weight of the batch shall be not more than 1000 kg.

3.3. Control the appearance and thickness is exposed to each sheet; the width, length and skew of the cut to 5% leaves the party on mass.

3.4. If unsatisfactory test results of at least one indicator thereon, a second test of the doubled sample taken from the same batch. The results of repeated tests apply to the entire party.

3.2−3.4. (Changed edition, Rev. N 1).

3.5, 3.6 (Deleted, Rev. N 1).

4. TEST METHODS

4.1. Visual inspection of the foil sheets should be produced without the use of magnifying devices.

4.2. The thickness of the foil check in packs, each consisting of 10 sheets.

The thickness of the stack of foils is measured with a micrometer according to GOST 6507−78* no closer than 50 mm from the vertex of the angle and 15 mm from the edge of the sheet.
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* On the territory of the Russian Federation GOST 6507−90. — Note the manufacturer’s database.

4.3. The width and length of the foil sheets check with a ruler according to GOST 427−75, cosine — square according to GOST 3749−77 and a ruler.

4.2, 4.3. (Changed edition, Rev. N 1).

4.4. The chemical composition of the alloy, reaching for the manufacture of tin foil, determine the churchyard 15483.0−78, GOST 15483.4−78, GOST 15483.5−78 and GOST 1429.1−77 or GOST 15483.10−78*.
________________
* On the territory of the Russian Federation GOST 15483.10−2004. Here and further. — Note the manufacturer’s database.

4.5. The chemical composition of the alloy, reaching for the manufacture of lead foil plated tin-lead to lead according to GOST 1429.0−77, GOST 1429.1−77, GOST 1429.2−77, tin — GOST 15483.0−78, GOST 15483.4−78, GOST 15483.5−78, GOST 1429.1−77 or GOST 15483.10−78.

4.6. To determine the chemical composition of each selected sheet cut one sample according to GOST 24231−80.

Allowed the manufacturer to take samples from molten metal.

4.7. The manufacturer checks the thickness of the cladding layer of in-process control of the thickness of the workpiece workpiece lead and tin, subject to further joint rolling.

4.6, 4.7. (Added, Rev. N 1).

5. MARKING, PACKAGING, TRANSPORTATION AND STORAGE

5.1. Foil Packed in wooden boxes of types I, II-2 according to GOST 2991−76, lined inside paper according to GOST 3479−75* or GOST 16711−79*. Dimensions of boxes — GOST 21140−75* or regulatory and technical documentation approved in the established order.
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* On the territory of the Russian Federation there are 3479−85 GOST, GOST and GOST 16711−84 21140−88, respectively. — Note the manufacturer’s database.

The boxes with the foil needs to be trimmed at the ends with a soft tape not less than 0,3x20 mm according to GOST 3560−73.

Weight of cargo must not exceed 60 kg.

Consolidation packages in overpacks shall be conducted in accordance with the requirements of GOST and GOST 21929−76 24597−81.

Packaging is carried out on pallets according to GOST 9557−73* or without pallets using the bricks of height at least 50 mm with strapping in the longitudinal and transverse directions with wire of diameter not less than 2 mm according to GOST 3282−74 or tape not less than 0,3х30 mm according to GOST 3560−73. Bond tips: twist the wire at least 5 turns, feed — in castle.
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* On the territory of the Russian Federation GOST 9557−87. — Note the manufacturer’s database.

Allowed packaging foil back packaging according to normative-technical documentation approved in the established order, ensuring the safety of the foil.

5.2. Transport marking of packages and methods of its application — according to GOST 14192−77*.
______________
* On the territory of the Russian Federation GOST 14192−96. — Note the manufacturer’s database.

5.3. In each drawer must be attached packing list with the following information:

trademark or a trademark and the name of the manufacturer;

legend foil;

batch number;

the weight of the party.

5.4. Transportation of the foil is carried out by all kinds of transport in covered vehicles in accordance with cargo carriage regulations applicable to transport of this kind of small or carload types send.

5.1−5.4. (Changed edition, Rev. N 1).

5.5. Storage foil should be done in a heated room for a minimum temperature of 12 °C.

5.6. When storing, the foil must be protected from mechanical damage, moisture, and vapor of active chemicals.

(Changed edition, Rev. N 1).

5.7. The foil should be stored in packing under this standard.

5.8. In case of detection of signs of «tin plague» in those tin foil stocks, foil are melted down, and the room where he kept the contaminated foil was subjected to a careful cleaning. All brooms must be sent to the smelter.

The electronic text of the document
prepared by JSC «Code» and checked by:
the official publication of the
M.: Publishing house of standards, 1979

Revision of the document including
changes and additions

prepared by JSC «Code»