GOST R 52922-2008

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  ГОСТ Р 52922-2008

GOST R 52922−2008 Fittings of copper and copper alloys for jointing copper pipes with capillary soldering method. Specifications (with Change No. 1)

GOST R 52922−2008

Group В64

NATIONAL STANDARD OF THE RUSSIAN FEDERATION

FITTINGS OF COPPER AND COPPER ALLOYS FOR JOINTING COPPER PIPES WITH CAPILLARY SOLDERING METHOD

Specifications

Fittings from copper and copper alloys for capillary soldering to copper tubes. Specifications

OKS 23.040.15
GST 18 4450

Date of introduction 2009−07−01

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 Technical Committee for standardization TC 106 «Tsvetmetprokat», Scientific-research, project and design Institute for alloys and processing of nonferrous metals «joint-stock company «Institute tsvetmetobrabotka»», JSC «Revdinsky plant on processing nonferrous metals"

2 SUBMITTED by the Technical Committee for standardization TC 106 «Tsvetmetprokat"

3 APPROVED AND put INTO EFFECT by the Federal Agency for technical regulation and Metrology of June 3, 2008 N 115th St

4 this standard takes into account the basic regulatory provisions of the following European standards*:

YONG 1254−1:1998, «copper and Copper alloys. Fittings. Part 1. Fitting end, attachable capillary soldering soft or hard solder, for copper pipes» (EN 1254−1:1998 «Copper and copper alloys — Plumbing fittings — Part 1: Fittings with ends for capillary soldering or capillary brazing to copper tubes», NEQ);

EH 1254−5:1998, «copper and Copper alloys. Fittings. Part 5. Fittings with short ends, attach the capillary soldering brazing to copper tubes» (EN 1254−5:1998 «Copper and copper alloys — Plumbing fittings — Part 5: Fittings with short ends for capillary brazing to copper tubes», NEQ)

5 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

The Change N 1, approved and promulgated by the Order of Rosstandart of 21.01.2011 No. 3-St c 01.05.2011

Change No. 1 made by the manufacturer of the database in the text IUS N 4, 2011

1 Scope

This standard applies to fittings of copper and copper alloys, intended for the connection of copper pipes manufactured according to GOST R 52318, installation of pipelines by method of soldering capillary used in the system: drinking water, hot and cold water, water (steam) heating, sewage, water treatment plants, gas supply and heating and cooling systems.

The standard establishes permissible operational temperature, operational pressure, assortment, technical requirements, acceptance rules, methods of control and testing, marking and packaging of fittings.

2 Normative references

This standard uses the regulatory references to the following standards:

GOST R 52318−2005 Pipes of circular cross-section for water and gas. Specifications

GOST R 52901−2007 corrugated Cardboard for packaging products. Specifications

GOST 166−89 (ISO 3599−76) Calipers. Specifications

GOST 613−79 tin foundry Bronzes. Brand

GOST 859−2001 Copper. Brand

GOST 1652.1−77 (ISO 1554−76) Alloys copper-zinc. Methods for determination of copper

GOST 1652.2−77 (ISO 4749−84) Alloys copper-zinc. Methods for determination of lead

GOST 1652.3−77 (ISO 1812−76, ISO 4748−84) Alloys copper-zinc. Methods of iron determination

GOST 1652.4−77 Alloys copper-zinc. Methods for determination of manganese

GOST 1652.5−77 (ISO 4751−84) Alloys copper-zinc. Methods for determination of tin

GOST 1652.6−77 Alloys copper-zinc. Methods for determination of antimony

GOST 1652.7−77 Alloys copper-zinc. Methods for determination of bismuth

GOST 1652.8−77 Alloys copper-zinc. Methods for determination of arsenic

GOST 1652.9−77 (ISO 7266−84) Alloys copper-zinc. Method for the determination of sulfur

GOST 1652.10−77 Alloys copper-zinc. Methods for determination of aluminium

GOST 1652.11−77 (ISO 4742−84) Alloys copper-zinc. Methods for determination of Nickel

GOST 1652.12−77 Alloys copper-zinc. Methods for determination of silicon

GOST 1652.13−77 Alloys copper-zinc. Methods for determination of phosphorus

GOST 1953.1−79 Bronze tin. Methods for determination of copper

GOST 1953.2−79 Bronze tin. Methods for determination of lead

GOST 1953.3−79 Bronze tin. Methods for determination of tin

GOST 1953.4−79 Bronze tin. Methods for determination of phosphorus

GOST 1953.5−79 Bronze tin. Methods for determination of Nickel

GOST 1953.6−79 Bronze tin. Methods for determination of zinc

GOST 1953.7−79 Bronze tin. Methods of iron determination

GOST 1953.8−79 Bronze tin. Methods for determination of aluminium

GOST 1953.9−79 Bronze tin. Methods for determination of silicon

GOST 1953.10−79 Bronze tin. Methods for determination of antimony

GOST 1953.11−79 Bronze tin. Methods for determination of bismuth

GOST 1953.12−79 Bronze tin. Methods of determining sulphur

GOST 1953.13−79 Bronze tin. Method of determination of manganese

GOST 1953.14−79 Bronze tin. Method for determination of magnesium

GOST 1953.15−79 Bronze tin. Methods for determination of arsenic

GOST 1953.16−79 Bronze tin. Method of determining titanium

GOST 2768−84 Acetone. Specifications

GOST 2991−85 wooden disposable Boxes for loads up to 500 kg. General specifications

The Wire GOST 3282−74 General purpose low carbon steel. Specifications

GOST 3560−73 package steel Strip. Specifications

GOST 4461−77 nitric Acid. Specifications

GOST 6507−90 Micrometers. Specifications

GOST 9557−87 flat wooden Pallet size 800x1200 mm. specifications

GOST 9716.1−79 Alloy copper and zinc. Method of spectral analysis on a metal standard samples with photographic registration of spectrum

GOST 9716.2−79 Alloy copper and zinc. Method of spectral analysis on a metal standard samples with photoelectric registration of spectrum

GOST 9716.3−79 Alloy copper and zinc. Method of spectral analysis on the oxide samples with photographic registration of spectrum

GOST 9717.1−82* Copper. Method of spectral analysis on a metal standard samples with photoelectric registration of spectrum
_______________
* On the territory of the Russian Federation the document is not valid. Standards 31382−2009, here and hereafter. — Note the manufacturer’s database.

GOST 9717.2−82 Copper. Method of spectral analysis on a metal standard samples with photographic registration of spectrum

GOST 9717.3−82 Copper. Method of spectral analysis of oxide standard specimens

GOST 10198−91 wooden Boxes for goods of mass over 200 up to 20000 kg. General specifications

GOST 10354−82 polyethylene Film. Specifications

GOST 13938.1−78* Copper. Methods for determination of copper

GOST 13938.2−78* Copper. Methods of determining sulphur

GOST 13938.3−78* Copper. Method of determination of phosphorus

GOST 13938.4−78* Copper. Methods of iron determination

GOST 13938.5−78* Copper. Methods for determination of zinc

GOST 13938.6−78* Copper. Methods for determination of Nickel

GOST 13938.7−78* Copper. Methods for determination of lead

GOST 13938.8−78* Copper. Methods for determination of tin

GOST 13938.9−78* Copper. Methods for determination of silver

GOST 13938.10−78* Copper. Methods for determination of antimony
_______________
* On the territory of the Russian Federation GOST 13938.1−78 — GOST 13938.10−78 do not apply. Standards 31382−2009, here and hereafter. — Note the manufacturer’s database.

GOST 13938.11−78 Copper. Method for the determination of arsenic

GOST 13938.12−78* Copper. Methods for determination of bismuth
_______________
* On the territory of the Russian Federation the document is not valid. Standards 31382−2009, here and hereafter. — Note the manufacturer’s database.

GOST 13938.13−93 Copper. Methods for determination of oxygen

GOST 13938.15−88* Copper. Methods for determination of chromium and cadmium
_______________
* On the territory of the Russian Federation the document is not valid. Standards 31382−2009, here and hereafter. — Note the manufacturer’s database.

GOST 14192−96 Marking of cargo

GOST 15102−75 the universal metal closed Container of nominal gross mass 5,0 t Technical specifications

GOST 15527−2004 Alloys copper-zinc (brass) pressure treated. Brand

GOST 15846−2002 Products that are sent to the far North regions and equated areas. Packing, marking, transportation and storage

GOST 21646−2003 Pipes copper and brass for heat exchangers. Specifications

GOST 21650−76 means of fastening of package cargoes in transport packages. General requirements

GOST 22225−76 universal Containers with a gross weight 0,625 and 1,25 t. specifications

GOST 24231−80 non-ferrous metals and alloys. General requirements to selection and preparation of samples for chemical analysis

GOST 24597−81 the packaged goods. Basic parameters and dimensions

GOST 25086−87 non-ferrous metals and their alloys. General requirements for methods of analysis

GOST 26663−85 transport Packs. Formation with the use of packaging. General technical requirements

GOST 28057−89 Alloys copper-zinc. Method of determining resistance to bestintown

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 cancelled without replacement, then the situation in which the given link applies to the extent that does not affect this link.

(Changed edition, Rev. N 1).

3 Terms and definitions

This standard applies the following terms with respective definitions:

3.1 fitting: a Device in the pipeline system, designed to connect pipes together or with another component of the system.

3.2 nominal diameter: the nominal diameter of the end fitting, expressed as a nominal outer diameter of the joining pipe.

4 Assortment

4.1 Standardized sizes — nominal diameter limit deviation for diameter of the connecting parts and the diametrical clearance of the solder connection must match the values specified in table 1.


Table 1

In millimeters

Nominal diameter	Maximum deviation for		The diametrical clearance of the solder connection
the inner diameter of the female end	the outside diameter of the covered end	max.	min.
6,0	+0,15 +0,06	+0,04 -0,05	0,20	0,02
8,0
9,0
10,0
12,0
14,0
14,7
15,0
16,0
18,0
21,0	+0,18 +0,07	+0,05 -0,06	0,24	0,02
22,0
25,0
27,4
28,0
34,0	+0,23 +0,09	+0,06 -0,07	0,30	0,03
35,0
40,0
40,5
42,0
53,6
54,0
64,0	+0,33 +0,10	+0,07 -0,08	0,41	0,03
66,7
70,0
76,1
80,0
88,9
106,0
108,0
133,0	+0,70 +0,23	+0,20 -0,20	0,90	0,03
159,0
Notes 1 When installing fittings with a diameter from 34,0 to 108.0 mm inclusive requires special techniques. 2 For connecting parts with a diameter 133,0 159,0 mm and are used only high-temperature (hard) solder.

Limit deviations of the diameter of the male and female ends is checked using gauges, the dimensions of which are given in tables A. 1 and A. 2 (Appendix A).

Maximum deviations in diameter given in table 1, and the maximum deviations of the calibers listed in tables A. 1 and A. 2 to ensure a uniform distribution of the low-temperature (soft) and high temperature (hard) solders in a capillary gap and unimpeded mechanical joining of fitting and tube.

4.2 the Names and basic explanations of the fittings are given in Appendix B. the Installation dimensions of fittings is determined by agreement between manufacturer and consumer.

(Changed edition, Rev. N 1).

4.3 Fittings fittings are divided into a covering pipe and fittings covered by the tube. Connection for capillary soldering is shown in figure 1.

Figure 1 — Connection for capillary soldering

1 — tube; 2 — fitting;  — the nominal diameter of the connected pipes;  — length interior section for soldering to the fitting which surround the pipe connection; the length of the external site solder fitting covered by the pipe in the connection

Figure 1 — Connection for capillary soldering

4.4 length of the area under low-temperature (soft) and high temperature (solid) solder to fittings and tolerances for length must match the values specified in table 2.


Table 2

In millimeters

Nominal diameter	The length of the area under low-temperature (soft) and high-temperature (hard) soldering		Maximum deviation along the length of the plot (, )
internal	outdoor
6,0	5,8	7,8	±1,2
8,0	6,8	8,8	±1,2
9,0	7,8	9,8	±1,2
10,0	7,8	9,8	±1,2
12,0	8,6	10,6	±1,4
14,0	10,6	12,6	±1,4
14,7	10,6	12,6	±1,4
15,0	10,6	12,6	±1,4
16,0	10,6	12,6	±1,4
18,0	12,6	14,6	±1,4
21,0	15,4	17,6	±1,4
22,0	15,4	17,6	±1,6
25,0	16,4	18,4	±1,6
27,4	18,4	20,4	±1,6
28,0	18,4	20,4	±1,6
34,0	23,0	25,0	± 1,6
35,0	23,0	25,0	±2,0
40,0	27,0	29,0	±2,0
40,5	27,0	29,0	±2,0
42,0	27,0	29,0	±2,0
53,6	32,0	34,0	±2,0
54,0	32,0	34,0	±2,0
64,0	32,5	34,5	±2,0
66,7	33,5	36,5	±2,0
70,0	33,5	36,5	±2,0
76,1	33,5	36,5	±2,5
80,0	35,5	38,5	±2,5
88,9	37,5	40,5	±2,5
106,0	47,5	51,5	±2,5
108,0	47,5	51,5	±2,5

4.5 For cropped fittings use only a high-temperature (hard) solder.

The length of the solder and limit deviations of length should correspond to the values indicated in table 3.


Table 3

In millimeters

Nominal diameter	Length plot for high temperature (hard) soldering		Maximum deviation along the length of the plot (, )
internal	outdoor
14,7	7,0	9,0	±1,4
15,0	7,0	9,0	±1,4
16,0	7,0	9,0	±1,4
18,0	7,0	9,0	±1,4
21,0	8,0	10,0	±1,4
22,0	8,0	10,0	±1,6
25,0	8,0	10,0	±1,6
27,4	9,0	11,0	±1,6
28,0	9,0	11,0	±1,6
34,0	10,0	12,0	±1,6
35,0	10,0	12,0	±2,0
40,0	10,0	12,0	±2,0
40,5	10,0	12,0	±2,0
42,0	10,0	12,0	±2,0
53,6	11,0	13,0	±2,0
54,0	11,0	13,0	±2,0
64,0	11,0	14,0	±2,0
66,7	11,0	14,0	±2,0
70,0	12,0	15,0	±2,0
76,1	12,0	15,0	±2,5
80,0	13,0	16,0	±2,5
88,9	14,0	17,0	±2,5
106,0	15,0	19,0	±2,5
108,0	15,0	19,0	±2,5
133,0	19,0	24,0	±2,5
159,0	21,0	26,0	±2,5

4.6 Minimum cross section in any part of the fitting should not be less than the theoretically calculated cross section to the minimum diameters specified in table 4.


Table 4

In millimeters

Nominal diameter	The minimum diameter
6,0	4,0
8,0	6,0
9,0	7,0
10,0	7,0
12,0	9,0
14,0	10,0
14,7	11,0
15,0	11,0
16,0	12,0
18,0	14,0
21,0	18,0
22,0	18,0
25,0	21,0
27,4	23,0
28,0	23,0
34,0	29,0
35,0	29,0
40,0	35,0
40,5	36,0
42,0	36,0
53,6	47,0
54,0	47,0
64,0	55,0
66,7	57,0
70,0	60,0
76,1	65,0
80,0	68,0
88,9	76,0
106,0	92,0
108,0	92,0
133,0	113,0
159,0	Of 135.0

For fittings with different diameters the minimum diameter is taken for each.

4.7 To meet the requirements across the joint during brazing in the fittings shall be provided for the projections, ensuring reliable limitation in the application of connections to the maximum allowable Diametric clearance.

4.8 Minimum wall thickness of the fitting measured at any point shall not be less than the values shown in table 5.


Table 5

In millimeters

Nominal diameter	Minimum wall thickness of fittings
copper	copper alloy	cast copper and copper alloys
6,0	0,6	1,0	1,0
8,0	0,6	1,0	1,0
9,0	0,6	1,0	1,0
10,0	0,6	1,0	1,0
12,0	0,6	1,1	1,1
14,0	0,6	1,1	1,1
14,7	0,7	1,2	1,2
15,0	0,7	1,2	1,2
16,0	0,7	1,2	1,2
18,0	0,8	1,4	1,4
21,0	0,9	1,4	1,4
22,0	0,9	1,4	1,5
25,0	0,9	1,4	1,6
27,4	0,9	1,5	1,6
28,0	0,9	1,5	1,8
34,0	1,0	1,6	1,8
35,0	1,0	1,6	1,8
40,0	1,1	1,8	2,0
40,5	1,1	1,8	2,0
42,0	1,1	1,8	2,0
53,6	1,2	1,9	2,3
54,0	1,2	1,9	2,3
64,0	1,4	2,0	2,4
66,7	1,4	2,0	2,4
70,0	1,4	2,3	2,6
76,1	1,6	2,6	2,8
80,0	1,8	2,8	2,9
88,9	1,8	2,9	3,1
106,0	2,1	3,3	3,5
108,0	2,1	3,3	3,5
133,0	2,3	4,2	4,5
159,0	2,6	5,2	5,5

The legend of fittings include:

— name, such as tee, coupling, etc.;

— nominal diameter depending on the diameters of connected pipes; fittings designed to connect pipes of the same diameter should be in the designation of this diameter; fittings designed to connect pipes of different diameters are indicated by showing all the outer diameters of the respective pipes;

— brand copper or alloy;

two alphanumeric sign defining a specific manufacturer, that indicate, if necessary, when ordering.

In the absence of alphanumeric characters is — XX;

— the basic code designation of the fitting;

— special conditions: shorter fittings.

— the designation of this standard.

Symbols are examples of fittings:

Fitting in a drainage hole under the pipe with a diameter of 22 mm, made of copper brand M1r, with a basic code word 5001А:

The outlet 22 M1p XX5001A GOST R 52922−2008

Fitting in the form of a tee with the pipe holes with diameters of 15 mm and a branch with a diameter of 22 mm, of copper grade M1 °F, with a basic code word 5130R:

Tee 15х22 M1 °F XX5130R GOST R 52922−2008

Fitting in a drainage hole under the pipe with a diameter of 22 mm, made of copper brand M2r with a basic code word 5001А, cropped:

The outlet 22 M2r Х95001А HAVE GOST R 52922−2008

Allowed in the callout nominal diameter of the fitting to affix after the base code word.

Fitting in a drainage hole under the pipe, made of copper brand M1p with a basic code word 5001А with a diameter of 22 mm:

The withdrawal M1p XX5001A22 GOST R 52922−2008

(Changed edition, Rev. N 1).

5 Technical requirements

5.1 Fittings manufactured in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

5.2 Fittings made from copper brands: M1r, M1 °F and M2r according to GOST 859, Cu-DHP chemical composition specified in table 6; of brass brands: LS59−1, LS58−3 according to GOST 15527, CuZn39Pb3, CuZn36Pb2As chemical composition specified in table 7; bronze brands: Bro5c5s5 according to GOST 613, CuSn5Zn5Pb5-C chemical composition specified in table 8.


Table 6 — Chemical composition of copper grade Cu-DHP

Mark copper	Limit	Mass fraction of element, %		The density of copper, g/cm
Copper + silver, not less than	Phosphorus
Cu-DHP	Min.	99,90*	0,015	8,9
Max.	-	0,040
* Including silver to 0.015% max.

Table 7 — Chemical composition of CuZn39Pb3 brass brands, CuZn36Pb2As

Mark	Pre- Affairs	Mass fraction of element, %									The total of other elements %	The calculated density, g/cm
Copper	Aluminium tions	Mouse Yak	Same- the Uragan	Marga- Heff	No- Kel	Swee- Heff	Olo- in	Zinc
CuZn39Pb3	Min.	57,0	-	-	-	-	-	2,5	-	The rest Noah	-	8,4
Max.	59,0	0,05	-	0,3	-	0,3	3,5	0,3	-	0,2
CuZn36Pb2As	Min.	61,0	-	0,02	-	-	-	1,7	-	The rest Noah	-	8,4
Max.	63,0	0,05	0,15	0,1	0,1	0,3	2,8	0,1	-	0,2

Table 8 — Chemical composition of bronze CuSn5Zn5Pb5-C

Mark	Limit	Mass fraction of element, %
Copper	Nickel	Foz Fort	Lead	Tin	Zinc	Aluminium tions	Jelly zo	Sulfur	Sur- mA	Cream tions
CuSn5Zn5Pb5-C	Min.	83,0	-	-	4,0	4,0	4,0	-	-	-	-	-
Max.	87,0	2,0	0,10	6,0	6,0	6,0	0,01	0,3	0,10	0,25	0,01

5.3 By agreement between the consumer and the manufacturer is allowed to produce fittings of brass other brands mentioned in GOST 15527. The technical characteristics of fittings made from brass, these brands needs to comply with the requirements specified in this standard.

5.4 All materials used for the manufacture of fittings intended for drinking water pipes under this standard must be approved for use by national health authorities.

5.5 the Outer, inner and end surface of the fittings must be clean (no dirt), bright, metallic Shine. The fittings must not have sharp edges, burrs, cracks, holes and delamination.

On the surface of the fittings allowed for some minor dents, corrugations, burrs from the parting plane of the dies, not affecting the installation and operation of pipelines.

5.6 Internal surface of copper capillary fittings for soldering does not have to contain carbon films or carbon, sufficient for the formation of such a film.

The maximum mass fraction of carbon should not exceed 1 mg/DM.

5.7 Fittings made of brass should not have residual tensile stresses.

5.8 Fittings made of alloys containing more than 10% of the zinc exposed to objectencoding.

At customer’s request, conduct stability test fittings to objectencoding.

5.9 End surface should be perpendicular to the axes of the passages. The deviation must not exceed two degrees.

5.10 Fittings must be sealed.

6 acceptance Rules

6.1 Fittings take parties. The game shall consist of fittings of the same brand of copper or copper alloy, of the same name, same size, and must be furnished by a single document about quality that contains:

is the trademark or name and trademark of manufacturer;

— the name of the country of manufacture;

— legal address of the manufacturer and (or) the seller;

— the symbol of the fittings;

— number of fittings in the party;

— the batch number;

— test results (as required);

— the weight of the batch.

The mass of the party must be not more than 300 kg.

6.2 Control external, internal surfaces and the availability marking machine fittings in accordance with the control plan of the manufacturer.

6.3 To measure diameters select five fittings from the party. The minimum wall thickness and minimum diameter guaranteed by the manufacturer.

6.4 To control the perpendicularity of end surfaces to the axis of passage of three selected fitting from the party.

6.5 To control the chemical composition selected two fitting from the party.

6.6 To determine the presence of residual tensile stresses taken two fitting from the party.

6.7 To determine the resistance to bestintown number selected from the party of fittings are approved by the consumer.

6.8 leak Test is performed according to the control plan of the manufacturer.

6.9 Operating temperature and pressure, which have to withstand fittings, manufactured in accordance with the requirements of this standard are given in Appendix b, short fittings in Annex G.

6.10 If unsatisfactory test results of at least one of the indicators it is carried out re-testing at twice the sample taken from the same batch. The results of repeated tests spread to the entire party.

7 Methods of inspection and testing

7.1 Control the appearance and marking of the fittings is carried out visually, without the use of magnifying devices.

7.2 Outer diameter of the male ends of the fittings must comply with-through and no-go calibres-rings in accordance with figure A. 1 and table A. 1 (Appendix A).

7.3 the Internal diameter of the female ends of the fittings must comply with-through and no-go calibres-stoppers in accordance with figure A. 2 and table A. 2 (Appendix A).

7.4 Measurement of the wall thickness of the fittings is carried out with a micrometer according to GOST 6507.

7.5 Measurement of the other dimensions is carried out with a Vernier caliper according to GOST 166.

7.6 Perpendicular end surface to the axis of the passage control of a special goniometer, made by regulations.

7.7 the tightness of the fittings is guaranteed by the manufacturer.

At the request of the consumer test conducted hydrostatic pressure: 3.75 MPa for fittings with a diameter from 6 to 54 mm, inclusive, to 2.4 MPa for fittings with a diameter from 54 to 108 mm inclusive and 0.75 MPa for fittings with a diameter of 108 mm for 15 min at ambient temperature. Pressure should not fall during the entire duration of the test. The test is carried out at the facility, as specified in Appendix D (figure D. 1).

At customer’s request leak test fittings with cast microstructure conducting hydrostatic or pneumatic pressure.

The pneumatic test pressure is carried out at a pressure of not less than 0.5 MPa, the fittings shall be totally immersed in water. The hydrostatic pressure test is carried out at a pressure of not less than a 3.75 MPa at ambient temperature.

7.8 Control of the inner surface of the fittings on the presence of carbon films is carried out in accordance with Annex E.

Determination of residual carbon content on the inner surface of copper fittings is carried out in accordance with Annex J.

7.9 the Selection and preparation of samples for chemical analysis is carried out according to GOST 24231.

Chemical composition analysis of copper fittings is carried out according to GOST 13938.1−13938.13 GOST, GOST 13938.15, GOST 9717.1-GOST 9717.3.

If there is disagreement in the assessment of the chemical composition of brass fittings analysis is carried out according to GOST 13938.1−13938.13 GOST, GOST 13938.15.

Chemical composition of brass fittings is determined according to GOST 1652.1−1652.13 GOST, GOST 9716.1-GOST 9716.3.

The chemical composition of the bronze is determined according to GOST 1953.1−1953.16 GOST, GOST 25086.

Allowed to the manufacturer of the sampling carried out by the molten metal.

7.10 Removal of residual tensile stresses on the brass fittings is ensured by the technology manufacturer.

At the request of the consumer the definition of a residual tensile stress is controlled by ammoniac method according to GOST 21646, using a pH of 9.5 without pre-etching.

7.11 Test for determination of resistance to bestintown carried out according to GOST 28057.

Admissible obeschanija should be:

— class A — up to 200 µm;

— for class B — from 200 to 400 microns, inclusive.

7.12 permitted the manufacturer to use other methods of control and testing, ensuring the necessary accuracy. If there is disagreement in the definition of indicators monitoring and testing carried out by the methods specified in this standard.

8 Marking, packaging, transportation and storage

8.1 On the outer surface of each fitting shall be marked with marking indicating the diameter, the trademark or name of the manufacturer.

On the brass fittings which have been tested for Obeschanie, should be marked:

— for class A CR or DRA;

— for class B — DRB.

The marking method must ensure its safety during transportation and operation at the consumer.

8.2 the Fittings are Packed in polyethylene film and placed in wooden crates or boxes made of corrugated cardboard.

It is allowed to pack the fittings in boxes without packing in plastic wrap.

As containers and packaging materials can be used:

— boxes of GOST 2991, GOST 10198;

containers according to the GOST 15102, GOST 22225;

— wire according to GOST 3282;

— wooden pallets according to GOST 9557;

tape according to GOST 3560;

— corrugated cardboard according to GOST R 52901;

— polyethylene film according to GOST 10354.

Allowed other types of packaging and packaging materials ensuring the safety of the fittings during transportation, according to the normative documents.

(Changed edition, Rev. N 1).

8.3 Labelling of packaging must be performed on labels glued on the outside packaging, and must contain the following information:

is the trademark or name and trademark of manufacturer;

— the symbol of the fittings;

— number of fittings;

— the batch number;

the weight of the party.

8.4 Transport marking — according to GOST 14192 with the application of manipulation sign «Protect from moisture».

8.5 Packaging of fittings, sent to the far North regions and equated areas according to GOST 15846.

8.6 Consolidation packages in overpacks carried out in accordance with the requirements of GOST 26663.

Dimensions of packages — according to GOST 24597.

Fastening means in the transport packets according to GOST 21650.

Maximum permissible mass of cargo room — 5000 kg.

When transporting in boxcars, the mass of the package shall not exceed 1250 kg.

Packaging is carried out on pallets according to GOST 9557 or without pallets using bars section not less than 50x50 mm with tying wire with diameter at least 3 mm or tape size 0,3x30 mm or using a sling also packageable. The ends of the tying wire is connected by twist of five turns, the tape is in the castle.

8.7 In each container or box shall be attached to the packing slip, containing:

is the trademark or name and trademark of manufacturer;

— the name of the country of manufacture;

— legal address of the manufacturer and (or) the seller;

— the symbol of the fittings;

— the batch number;

stamp of technical control or the technical controller;

— the date of manufacture.

8.8 Fittings transporterowych all types of transport in covered vehicles in accordance with cargo carriage regulations applicable to transport of this species.

8.9 the Fittings should be stored indoors and shall be protected from mechanical damage, moisture and active chemical substances.

Under specified storage conditions consumer properties of the fittings during storage are not changed.

9 manufacturer’s Warranty

9.1 the Manufacturer guarantees the conformity of the fittings with the requirements of this standard provided that the customer observes the conditions of transportation and storage.

9.2 Warranty period is 1 year from the date of manufacture.

9.3 after the warranty period of storage fittings before use must be checked for their compliance with the requirements of this standard and compliance can be used by the user to the destination.

Annex a (mandatory). Checkpoints and no-go gauges

Appendix A
(required)

Figure A. 1 — Checkpoints and no-go gauges ring to control the male ends of the fittings

Surface roughness is 3.2 microns.

Figure A. 1 — Checkpoints and no-go gauges ring to control the male ends of the fittings

Table A. 1 — Sizes of anadromous and no-go gages-rings to control the male ends of the fittings

In millimeters

Nominal diameter	Bore caliber	Limit deviation	Diameter impassable caliber	Limit deviation	Bore caliber after wear
6	6,037	+0,003	5,950	+0,003	6,050
8	8,037	7,950	8,050
9	9,037	8,950	9,045
10	10,037	9,950	10,050
12	12,036	+0,003	11,950	+0,003	12,050
14	14,036	13,950	14,050
14,7	14,736	14,650	14,750
15	15,036	14,950	15,050
16	16,036	15,950	16,050
18	18,036	17,950	18,050
21	21,045	+0,004	20,940	+0,004	21,060
22	22,045	21,940	22,060
25	25,045	24,940	25,060
27,4	27,445	27,340	27,460
28	28,045	27,940	28,060
34	34,054	+0,004	33,930	+0,004	34,065
35	35,054	34,930	35,065
40	40,054	39,930	40,065
40,5	40,554	40,430	40,565
42	42,054	41,930	42,070
53,6	53,653	+0,005	53,530	+0,005	53,665
54	54,053	53,930	54,065
64	64,063	63,020	64,080
66,7	66,763	66,620	66,780
70	70,063	69,920	70,180
76,1	76,163	76,020	76,180
80	80,062	+0,006	79,920	+0,006	80,080
88,9	88,962	88,820	88,980
106	106,062	105,920	106,080
108	108,062	107,920	108,080
133	133,120	+0,008	132,650	+0,008	133,200
159	159,190	158,650	159,200

Figure A. 2 — Checkpoints and no-go plug gauges to control the covering of the ends of the fittings

Surface roughness is 3.2 microns.

Figure A. 2 — Checkpoints and no-go plug gauges to control the covering of the ends of the fittings