GOST 285-69

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  ГОСТ 285-69

GOST 285−69 Wire, barbed monobasic corrugated. Specifications (with Amendments No. 1, 2)

GOST 285−69
Group В78

INTERSTATE STANDARD

WIRE, BARBED MONOBASIC CORRUGATED

Specifications

Barbed monobasic fluted wire. Specifications

ISS 77.140.65
OKP 12 1100

Date of introduction 1970−07−01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of ferrous metallurgy of the USSR
DEVELOPERS
I. N. Nagovisi, E. M. Romanova, K. G. Zalyalyutdinov, N. Galkina, N. M. Shugaev

2. APPROVED AND put INTO EFFECT by Decision of the Committee of standards, measures and measuring devices under Council of Ministers of the USSR from 15.09.69 N 1042

3. REPLACE GOST 285−41

4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

5. Limitation of actions taken by Protocol No. 2−92 of the Interstate Council for standardization, Metrology and certification (ICS 2−93)

6. EDITION (July 2006) with Amendments No. 1, 2 approved in July 1975, in April 1987 (IUS 8−75, 8−87)


This standard applies to barbed wire, consisting of a corrugated strands (base) located on it at equal distances from each other spikes.

1. BASIC PARAMETERS AND DIMENSIONS

1.1. Wire produced according to the type of the surface:

without coverage — It;

galvanized — KC (1, 2, 3 and 4 classes);

galvanized passivated — PCC;

for precision manufacturing:

extra accuracy;

normal accuracy.

(Changed edition, Rev. N 2).

1.2. Design, main dimensions and limit deviations in it depending on the components of the barbed wire shall be as specified in the drawing and in the table.1.

The angles , , must be at least 30°.

Sizes should be:

 — not less than 2.8 mm;

 — not less than 2.3 mm;

 — not less than 17 mm.

Examples of symbols

Wire, barbed, uncoated, normal accuracy:

To wire GOST 285−69

Same, galvanized, 1st grade, high accuracy:

Wire KC-1A GOST 285−69

Same, galvanized, 1st grade, passivated:

Wire PCC-1 GOST 285−69

Table 1

mm

(Changed edition, Rev. N 1, 2).

2. TECHNICAL REQUIREMENTS

2.1. Barbed wire shall be manufactured in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

Wire for the base and the spikes of the barbed wire shall be manufactured from wire rod. Allowed manufacture of wire of steel grade 08KP according to GOST 1050.

2.2. The basis of barbed wire made of annealed wire, which have a temporary tear resistance of at least 350 N/mm(36 kgf/mm) and to withstand without failure at least five bends 180°.

2.3. Spikes barbed wire made of heat-treated wire with a temporary tear resistance of not more than 1180 N/mm(120 kgf/mm).

2.1−2.3. (Changed edition, Rev. N 2).

2.4. Ends of studs must be straight and sharp (wedge angle must match that specified on the drawing). Allowed dulling and curvature of no more than one spike on each meter of barbed wire.

2.5. Spikes should sit based on still. Allowed propertyvalue spikes around the base at the angle not more than 30° and moving spikes along the bases within the distance between the projections of the base.

2.6. Allowed to pass the spikes and the presence of spines that do not meet the requirements of section 2.5, on sections no longer than 0.5 m if the total length of such sections on the roll does not exceed 4 m and the distance between them not less than 5 m.

2.7. On the surface the basics of wire without coating is not permitted captivity, sinks, cracks, delamination, and rust.

On the surface spikes of the wire without coating allowed the longitudinal and transverse risks.

(Changed edition, Rev. N 2).

2.8. (Deleted, Rev. N 2).

2.9. Passivated wire should be covered with a passive film. Color passive film from light yellow to gray-yellow.

(Changed edition, Rev. N 1).

2.10. The zinc coating on the wire, intended for the foundations must be solid. Allowed local influxes of zinc.

The zinc coating on the wire intended for the studs must be solid, durable and should not crack and flake off when the spiral wrapping of the wire with five turns on a cylindrical core is equal to the diameter of 2.75 mm galvanized wire 1 and 2 classes and equal to 4 times the diameter of the wound wire to galvanized wire 3 and 4 classes.

Allowed the presence of surface dust flaking the zinc coating on the wound samples.

(Changed edition, Rev. N 2).

2.11. Sections of the spikes remain ungalvanized. Allowed peeling of the zinc coating at a distance of 5 mm from the base of the cut tenon.

2.12. (Deleted, Rev. N 2).

2.13. Surface density of zinc, the number of dives and the duration of each immersion shall be as specified in table.2.

Table 2

Note. Wire 3 and class 4 coatings produced according to customer’s demands.


(Changed edition, Rev. N 2).

2.14. Wire shall be manufactured in coils with weight (35±2) kg with an outer diameter of a coil not more than 600 mm, height 250 mm. the Internal diameter of the coil wire should be from 100 to 140 mm. allowed the taper hole of the rolls in the same range.

Note. Length of wire on a reel with a mass of 35 kg is equal to approximately 400 m.


(Changed edition, Rev. N 1).

2.15. In Hank allowed no more than two connections foundations barbed wire. The connection ends should be made in the form of loops included in one another. Fixing the hinges should be durable, twisted at least four turns of each of the bent end of the loop around the base.

2.16. (Deleted, Rev. N 2).

3A. ACCEPTANCE RULES

3A.1. Wire take parties. The party should consist of wire of the same species and be accompanied by a document about quality that contains:

trademark or the name and trademark of manufacturer;

symbol wire;

the results of the tests;

the number of skeins in the batch;

the weight of the party;

batch number.

3A.2. Surface quality, dimensions, mounting studs, color passive film test on each reel of wire.

3A.3. To check the mechanical properties and the quality of zinc coating of wire intended for the production of bases and spikes, from the party select 1% of the skeins, but not less than five skeins.

3A.4. If unsatisfactory test results of at least one of the indicators it is carried out re-testing at twice the sample.

The results of a second test applies to the whole party.

Sec. 3A. (Added, Rev. N 2).

3. TEST METHODS

3.1. To determine the mechanical properties and the quality of zinc coating of wire take one sample from the outer end of the strand.

3.2. The surface quality of the wire is checked with the naked eye. Color passive film check with the naked eye, and if there is disagreement in the assessment — the standard agreed between the manufacturer and the consumer.

3.3. The diameter of the wire for making the base and the spikes are measured with a micrometer according to GOST 6507 in at least three areas of a coil.

3.4. The geometric dimensions of the basics check the caliper according to GOST 166. The geometric dimensions of the stud (corners) test limit templates.

3.5. The wire for the bases and spikes, test the tension according to GOST 10446.

3.6. Wire for the basics, test the inflection according to GOST 1579.

3.7. Wire for thorns, experiencing the winding according to GOST 10447.

3.1 to 3.7 (Revised edition, Edit. N 2).

3.8. Surface density of zinc determine the weight and space-gasometrical methods, and the uniformity of coating is by immersion.

The weight method is used for very precise definitions and arbitration tests.

Length samples of wire, designed to determine the surface density of zinc weight and space-gasometrical methods, shall be not less than 100 mm. weighing and bleeding zinc test specimen of wire is allowed to cut into any number of segments depending on the test conditions.

3.8.1. Weight method

Surface density of zinc weight method is determined by dissolving the coating from the samples of wire in sulfuric acid solution with the addition of an inhibitor arsenic trioxide or antimony trioxide.

The composition of the bleed solution

 — 20−25 g/DM;

or  — 2 g/DM.

The bleed solution is replaced as it is exhaustion.

Test to determine the surface density of the zinc by the gravimetric method carried out in the following order:

a) take samples of wire, degreased in alcohol, gasoline or benzene, wipe with a clean cloth and weighed;

b) dissolve the zinc coating;

C) the samples are washed in water, wipe with a clean cloth to remove moisture and weighed;

d) calculate the surface density of zinc.

Surface density of zinc (a) in grams per 1 mof the surface of the wire is calculated by the formula

,

where is the mass of the specimen of wire (or group of samples) before removing the coating, g;

 — the mass of the wire specimen (or group of samples) after removing the coating, g;

 — nominal diameter of specimen, mm.

The accuracy of determining individual values should be as follows:

and  — 0,001 g;

 — 0,010 mm.

Surface density of zinc is calculated with an error of not more than 0.1 g/m.

3.8.2. Space-gasometrical method

Removing the zinc coating with three-gasometrical method is performed under complete immersion of the samples of wire into the solution at room temperature until cessation of gas evolution.

The composition of the bleed solution is the same as with the weight method.

The order of operations when determining the surface density of zinc volumetric method gasometrical the following:

a) take samples of wire and measure actual length;

b) degreasing the specimens in alcohol, gasoline or benzene and wipe with a clean cloth;

C) dissolve the zinc coating, completely catching released when the hydrogen;

g) measure the volume of evolved hydrogen gas and bring him to normal conditions;

d) calculate the surface density of zinc.

Surface density of zinc (a) in grams per 1 mof the surface of the wire is calculated by the formula

,

where is the arithmetic average of the volume of hydrogen at normal conditions (pressure of 760 mm Hg.St. and 0 °C), cm;

 — the nominal diameter of the wire specimen, mm;

 — length of sample, mm.

The accuracy of determining individual values should be as follows:

 — 0.010 mm;

 — 0,100 mm.

Surface density of zinc is calculated with an error of not more than 0.1 g/m.

3.8.3. The immersion method

Test wire on the uniformity of the zinc coating is carried out by immersion in a solution of copper sulphate is obtained by dissolving one part by weight of dry crystal of copper sulphate according to GOST 19347 in five weight parts of distilled water and neutralized with an excess of freshly precipitated hydrate of copper oxide. After neutralization the solution should be filtered. The density of the neutralized solution should be within a 1,114−1,116 g/cm.

The temperature of the solution of copper sulphate should be 18±2 °C.

The order of testing the following:

a) take samples of wire, degreased in alcohol, gasoline, benzene or ether. If the samples are washed with petrol or benzene, to produce an additional rinse in distilled water;

b) washed samples wipe dry with cotton or a clean cloth and immersed in a solution of copper sulphate. The duration of each dive and number of dives, depending on the component of the barbed wire are given in table.2.

The depth of immersion of the samples in a solution of copper sulfate is about 100 mm.

Before each subsequent immersion in a solution of copper sulfate samples were washed with distilled water and wipe with cotton or a clean cloth. Samples of wire must be copper sulfate solution in a stationary state, not in contact with each other and with the walls of the vessel. The same solution of copper sulphate with a volume of 200 cmcan be used for test no more than 10 samples.

On the surface of samples of wire after the test by immersion is not allowed places, covered with copper, not coming down when wiping with cotton wool or a clean cloth.

On the surface of the wire after the test is allowed:

a) redness at the site corresponding to the height of the solution level, at a distance of 10 mm from this level at the distance of 20 mm from the immersed in the solution the lower end of the sample;

b) the heterogeneity in color, white spots and glitter;

C) white plaque, after removal of which the wire can withstand the test of the quality of zinc coating, as well as brown color and the redness of point character, disappearing with the additional (not more than 5 seconds) immersed in a solution of copper sulfate.

3.9, 3.10 (Deleted, Rev. N 2).

4. PACKING, MARKING, TRANSPORTATION AND STORAGE

4.1. Wire without coatings shall be coated with a thin layer conservation and oil type НГ204У, like НГ203А or K-17 GOST 10877, НГ208, GSD and GSD-1 at the normative and technical documentation and industrial oil brands-20A, AND 50A according to GOST 20799 with the addition of additives KP according to GOST 23639 (15−20%) or AKOR-1 (15−25%) according to GOST 15171.

It permitted the use of preservative oils of a different type, protecting the wire from corrosion.

Galvanized and passivated galvanized steel wire not coated in oil.

4.2. Each coil of wire shall be tied with wires of diameter not less than 2 mm, heat-treated, GOST 3282, or another heat-treated wire according to normative-technical documentation in three places, evenly spaced around ball. Each end of the strapping wire is passed through the coil hole, twist firmly with the other end of the strapping wire, and is bent along the forming cylindrical surface of a coil.

4.3. Passivated wire comes in a special package, the form of which is established by agreement between manufacturer and consumer.

Wire that is sent to the far North and remote areas, packaged according to GOST 15846.

4.4. To the outer end of a coil of wire attached to the label, which indicate:

trademark or the name and trademark of manufacturer;

symbol wire;

the date of manufacture;

stamp of technical control;

batch number.

4.5. Weight of package must not exceed 1000 kg. Consolidation packages in overpacks carried out according to GOST 21650, GOST 24597.

4.6. Wire transporterowych all types of transport in covered vehicles in accordance with cargo carriage regulations applicable to transport of this species. Stowage and securing of cargoes in vehicles must meet the specifications of loading and fastening of cargoes, approved by the Ministry of Railways of the USSR.

Transportation of the wire rail is carriages, light-duty or small shipments.

Allowed the transport of wire in universal containers according to GOST 15102,20435 GOST, GOST 22225.

The conditions of transport must comply with the storage conditions 3 to GOST 15150.

By agreement with the consumer allowed transportation of the wire in open vehicles.

4.1−4.6. (Changed edition, Rev. N 2).

4.7. Storage of wire — under the terms of 3 to GOST 15150.

4.8. Transport marking under GOST 14192.

4.7, 4.8 (Introduced later, Rev. N 2).



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