Heat-insulating mats made of mineral wool, vertically layered. Lamellar (vertically layered) mats VLM Packaging, labeling, transportation and storage

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INTERSTATE STANDARD

THERMAL INSULATION MATS
MINERAL WOOL
VERTICALLY LAYERED

TECHNICAL CONDITIONS

IPC PUBLISHING HOUSE OF STANDARDS
Moscow

INTERSTATE STANDARD

Date of introduction 07/01/79

This standard applies to thermal insulating vertically layered mineral wool mats, consisting of strips cut from mineral wool slabs and glued to the protective covering material in a position in which the layers mineral wool located perpendicular to the protective covering material.

Thermal insulating vertically layered mats are intended for thermal insulation of pipelines with a diameter of over 108 mm and apparatus at temperatures of insulated surfaces from minus 120 to plus 300 ° C.

1. BRANDS AND SIZES

1.1. Depending on the density (volumetric mass), mats are divided into grades 75 and 125.

1.2. The dimensions of the mats must correspond to those given in the table. 1 and in the drawing.

1.3. The symbol of the mat must consist of its abbreviated name, the brand of the mat, the brand of the covering material specified in the standards or technical specifications, the dimensions of the length, width and thickness of the mat in millimeters separated by dots, and the number of this standard.

An example of a symbol for a mat of grade 75 on glass roofing felt of grade S-RK, 3000 mm long, 1000 mm wide and 60 mm thick:

Table 1

(Changed edition, Amendment No. 1, 2).

1 - cover material; 2 - mineral wool strips

2. TECHNICAL REQUIREMENTS

2.1. Mats must be manufactured in accordance with the requirements of this standard according to the technological regulations approved in in the prescribed manner.

2.2. For the manufacture of mats, mineral wool slabs with a synthetic binder of grades 75 and 125 should be used according to GOST 9573.

(Changed edition, Amendment No. 1).

Bitumen of grades BN70/30 and BN90/10 according to GOST 6617 is used as an adhesive. polyethylene film according to GOST 10354.

Note. It is allowed, by agreement between the manufacturer and the consumer, to use other covering and adhesive materials.

2.4. Maximum deviations of mat sizes should not exceed:

The thickness difference of the mat should not exceed 5 mm.

2.3; 2.4.

2.5. The gap between the mineral wool strips that make up the mat s should not exceed 2 mm.

2.6. According to physical and mechanical parameters, the mats must meet the requirements specified in table. 2.

table 2

2.7. The mats must withstand the test for the strength of adhesion of mineral wool strips to the covering material, provided for in clause 4.10.

2.6, 2.7. (Changed edition, Amendment No. 2).

3. ACCEPTANCE RULES

3.1. Acceptance of mats should be carried out in accordance with the requirements of GOST 26281 and this standard.

3.2. The volume of a batch of mats is set in an amount not exceeding shift production.

3.3. Dimensions of mats, thickness variations, gap between mineral wool strips, width longitudinal edge, density, compressibility, humidity, adhesion strength of mineral wool strips to the covering material of each mat included in the sample are determined for each batch.

Thermal conductivity is determined once a quarter and with each change in raw materials and production technology on three mats that have passed acceptance tests.

3.4. A batch of mats that was not accepted based on the results of control of size, thickness variation, gap between mineral wool strips, longitudinal edge width, and adhesive strength is subjected to continuous control according to the indicator for which the batch was not accepted.

If satisfactory results are obtained for three consecutive batches, it is allowed to carry out periodic monitoring according to clause 3.3.

Sec. 3. (Changed edition, Amendment No. 2).

4. TEST METHODS

4.1, 4.2. (Excluded, Amendment No. 1).

4.3. The length, width and thickness of the mats are measured according to GOST 17177 on a mat laid with mineral wool strips facing upwards. The thickness of the mat is measured at a specific load of 500 Pa (0.005 kgf/cm2). The size of the gaps between the mineral wool strips is determined after every fifth strip of the product being measured.

4.4. The difference in thickness is determined by the results of measuring the thickness of the mats according to clause 4.3. The thickness difference is calculated as the difference between the largest and smallest values of the mat thickness.

4.5. The width of the longitudinal edge is measured with an error of up to 1 mm in six places and calculated as the arithmetic mean of the measurements taken.

4.6. Density is determined without taking into account the covering material according to GOST 17177.

(Changed edition, Amendment No. 1, 2).

4.7. The compressibility of the mat is determined according to GOST 17177.

From each mat included in the sample according to clause 3.1, two samples are cut out along with the covering material.

4.8. The thermal conductivity of the mat is determined according to GOST 7076.

From each mat selected according to clause 3.3, one sample without covering material is cut out.

4.9. The moisture content of the mat is determined according to GOST 17177.

The test sample consists of five point samples taken in four places diagonally at a distance of at least 250 mm from the corners and in the center of each mat included in the sample according to clause 3.1.

4.10. The strength of adhesion of mineral wool strips to the covering material is determined by examining the mat after rolling it twice into a roll and then unrolling it on a flat surface.

The mat is considered to have passed the test if, after the second deployment and rotation of the mat with the strips downwards, not a single strip is completely separated from the covering material.

4.7 - 4.10. (Changed edition, Amendment No. 2).

5. PACKAGING, LABELING, TRANSPORTATION AND STORAGE

5.1. Packaging, labeling, transportation and storage of mats are carried out in accordance with the requirements of GOST 25880 and this standard.

(Changed edition, Amendment No. 2).

5.1a. Mats must be rolled up. Roll weight - no more than 50 kg, roll diameter - no more than 400 mm.

Mats up to 1500 mm long can be supplied unrolled in stacks. The foot is wrapped in a strip of paper, the end of the paper is sealed. Foot weight - no more than 50 kg, foot height - no more than 500 mm.

Transport packages are formed in accordance with the rules for the transportation of goods, the sizes of packages and packaging means are in accordance with GOST 24597.

(Introduced additionally, Amendment No. 2).

5.2. It is allowed to transport mats in open vehicles at a distance of up to 200 km with the obligatory covering of them with a tarpaulin or other moisture-proof material.

Transportation of mats by railway carried out by wagon shipments. Transport marking is carried out with the application of the handling sign “Keep away from moisture” in accordance with GOST 14192.

5.3. The height of the stack during storage should not be more than 2 m.

5.4. The holding time of the mats in the warehouse before shipment to the consumer must be at least one day.

5.2 - 5.4. (Changed edition, Amendment No. 1, 2).

6. MANUFACTURER WARRANTY

6.1. The manufacturer guarantees that the mats comply with the requirements of this standard, subject to the conditions of transportation and storage established by this standard.

The guaranteed shelf life of the mats is 6 months from the date of their manufacture.

Sec. 6. (Introduced additionally, Amendment No. 1).

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of Assembly and Special construction work USSR

2. APPROVED AND ENTERED INTO EFFECT by the Resolution State Committee USSR for Construction Affairs dated 09.10.78 No. 195

3. The standard fully complies with ST SEV 5850-86

4. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS

5. EDITION (February 2001) with Amendments No. 1, 2, approved in February 1985, July 1988 (IUS 7-85, 9-88)

STATE STANDARD OF THE USSR UNION

THERMAL INSULATION MATS
MINERAL WOOL VERTICALLY LAYERED

TECHNICAL CONDITIONS

GOST 23307-78

(ST SEV 5850-86)

COMMITTEE OF STANDARDIZATION AND METROLOGY OF THE USSR

Moscow

STATE STANDARD OF THE USSR UNION

Date of introduction from 01.07.79

This standard applies to thermal insulating mineral wool vertically layered mats consisting of strips cut from mineral wool slabs and glued to the protective covering material in a position in which the layers of mineral wool are located perpendicular to the protective covering material.

1. BRANDS AND SIZES

1.1. Depending on the density (volumetric mass), mats are divided into grades 75 and 125.

1.2. The dimensions of the mats must correspond to those given in and on.

Example symbol mat grade 75 on glass roofing material grade S-RK, length 3000 mm, width 1000 mm and thickness 60 mm:

MVS-75-S-RK-3000.1000.60 GOST 23307-78

2. TECHNICAL REQUIREMENTS

2.1. Mats must be manufactured in accordance with the requirements of this standard according to technological regulations approved in the prescribed manner.

2.2. For the manufacture of mats, mineral wool slabs with a synthetic binder of grades 75 and 125 should be used according to GOST 9573-82.

(Changed edition, Amendment No. 1).

2.3. The following protective covering materials should be used: roofing felt in accordance with GOST 10923-82, glass roofing felt in accordance with GOST 15879-70, duplicated aluminum foil, rolled fiberglass for thermal insulation and foil roofing felt according to the technical specifications of the manufacturer.

The adhesive used is bitumen grades BN70/30 and BN90/10 in accordance with GOST 6617-76, polyethylene film in accordance with GOST 10354-82.

Note. It is allowed, by agreement between the manufacturer and the consumer, to use other covering and adhesive materials.

2.4. Maximum deviations of mat sizes should not exceed:

The thickness difference of the mat should not exceed 5 mm.

2.3; 2.4.

2.5. The gap between the mineral wool strips that make up the mat s should not exceed 2 mm.

2.6. According to physical and mechanical parameters, the mats must meet the requirements specified in table. 2.

table 2

Indicator name	Value for brand mats
Indicator name
Density, kg/m 3		St. 75 to 125
Compressibility under a specific load of 2000 Pa (0.02 kgf/cm 2,%, no more
Thermal conductivity, W/(m × K), no more, at temperature;

2.7. The mats must withstand the test for the strength of adhesion of mineral wool strips to the covering material, provided for in.

2.6; 2.7. (Changed edition, Amendment No. 2).

3. ACCEPTANCE RULES

Sec. 3. (Changed edition, Amendment No. 2).

4. TEST METHODS

4.1, 4.2.(Deleted, Amendment No. 1).

4.3. The length, width and thickness of the mats are measured according to GOST 17177-87 on a mat laid with mineral wool strips facing up. The thickness of the mat is measured at a specific load of 500 Pa (0.005 kgf/cm2). The size of the gaps between the mineral wool strips is determined after every fifth strip of the product being measured.

4.5. The width of the longitudinal edge is measured with an error of up to 1 mm in six places and calculated as the arithmetic mean of the measurements taken.

4.6. Density is determined without taking into account the covering material according to GOST 17177-87.

(Changed edition, Amendment No. 1, 2).

4.7. The compressibility of the mat is determined according to GOST 17177-87.

From each mat included in the sample, two samples are cut out along with the covering material.

4.8. The thermal conductivity of the mat is determined according to GOST 7076-87. From each mat selected by , one sample is cut out without covering material.

4.9. The moisture content of the mat is determined according to GOST 17177-87.

The test sample is made up of five point samples taken in four places diagonally at a distance of at least 250 mm from the corners and in the center of each mat included in the sample along .

(Introduced additionally, Amendment No. 2).

5.2. It is allowed to transport mats in open vehicles at a distance of up to 200 km with the obligatory covering of them with a tarpaulin or other moisture-proof material.

Transportation of mats by rail is carried out in wagon loads.

Transport marking is carried out with the application of the manipulation sign “Afraid of dampness” in accordance with GOST 14192-77.

5.3. The height of the stack during storage should not be more than 2 m.

5.4. The holding time of the mats in the warehouse before shipment to the consumer must be at least one day.

5.2 - 5.4. (Changed edition, Amendment No. 1, 2).

6. MANUFACTURER WARRANTY

6.1. The manufacturer guarantees that the mats comply with the requirements of this standard, subject to the conditions of transportation and storage established by this standard.

The guaranteed shelf life of the mats is 6 months from the date of their manufacture.

Sec. 6. (Introduced additionally, Amendment No. 1).

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of Installation and Special Construction Works of the USSR

DEVELOPERS

N. I. Melentyev,Ph.D. tech. Sciences (topic leader); L. M. Sharonova; L. N. Ponomareva; V. V. Eremeeva; M. P. Korablik

2. APPROVED AND ENTERED INTO EFFECT by Resolution of the USSR State Committee for Construction Affairs dated 10/09/78 No. 195.

3. The standard fully complies with ST SEV 5850-86.

4. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS

5. Reissue (August 1991) with changes No. 1, 2, approved in February 1985, July 1988 (IUS 7-85, 9-88)

VLM lamella mats are formed from bars basalt wool density from 25 to 65 kg/m3, fixed glue method on special substrates. The following are used as substrates:

reinforced aluminum foil;
foil fiberglass sheet Outside.

In the first case, the operation of vertically layered mats is limited by the thermal insulation of internal (protected from negative environmental factors) communication lines, in the second there are no restrictions, which significantly expands the operational capabilities.

The main area of application of VLM lamella mats is the thermal insulation of pipelines and air ducts, an alternative is the thermal insulation of casings various equipment and tanks. In addition, the mentioned mats are truly universal and remain effective on any structure and on any equipment.

Their fixation on insulated surfaces is done in two ways:

tightening with bandage belts (this method is used for thermal insulation of pipelines and air ducts);
gluing (used for thermal insulation of casings and tanks, as well as other large objects).

Technical characteristics of lamella (vertically layered) VLM mats

The width of VLM lamella mats is 1 m, the length varies from 2.5 to 15 m. Their thickness can also be different: its lower limit is 40 mm, the top one is 200 mm. The dimensions of the mats do not change either when heated/cooled or when moistened/dried (their coefficients of thermal expansion and shrinkage are zero).

At the minimum density of vertically layered VLM mats (it is 25 kg/m3), their compressive strength is 5 kN/m2, at the maximum (65 kg/m3) it reaches 10 kN/m2. But water absorption does not depend on density and never exceeds 1.5%. Getting the mats wet does not affect their service life, but increases thermal conductivity.

The operating temperature range of VLM lamella mats is quite wide: their operation is possible at temperatures from -180 to +350 C. Short-term exposure is more than high temperatures also allowed. The fire-technical classification classifies VLM mats into the following groups.

in terms of flammability - G1 (low flammability);
in terms of flammability - B1 (hardly flammable);
according to smoke-forming ability - D1 (virtually no smoke-forming);
for toxicity of combustion products - T1 (minimal danger).

Distinctive features lamella (vertically layered) mats VLM

Durable and extremely easy to install lamella mats VLM is one of the special thermal insulation materials, widely used both in industry and in the housing and communal services sector. The reason for this is their outstanding operational features, which include:

resistance to oils, various types fuels, solvents, alkalis and even acids;
significant deformability (the compressibility of the lamellas reaches 10%);
high insulation potential.

Use of vertically layered mats for thermal insulation ventilation ducts(air ducts) allows not only to prevent unwanted cooling of the air transmitted through them, but also to neutralize the noise created by its intense current. Mats made on the basis of Outside fabric also have waterproofing properties, protecting air ducts laid in open space from corrosion.

VLM lamella mats are supplied to consumers in the form of rolls of various sizes, packed in plastic film. After opening the packaging, the mats are completely ready for installation.

Transcript

1 STATE STANDARD OF THE UNION OF THE SSR THERMAL INSULATION MATS FROM MINERAL WOOL VERTICALLY LAYERED TECHNICAL CONDITIONS GOST (ST SEV) COMMITTEE OF STANDARDIZATION AND METROLOGY OF THE USSR Moscow STATE STANDARD OF THE UNION OF THE SSR THERMAL INSULATION MATS Thermoinsulating mineral wool vertically-layered mats. Specifications GOST (ST SEV) Date of introduction from This standard applies to thermal insulating mineral wool vertically layered mats consisting of strips, 1

2 cut from mineral wool slabs and glued to the protective covering material in a position in which the layers of mineral wool are located perpendicular to the protective covering material. Thermal insulating vertically layered mats are intended for thermal insulation of pipelines with a diameter of over 108 mm and apparatus at temperatures of insulated surfaces from minus 120 to plus 300 C. 1. GRADES AND SIZES 1.1. Depending on the density (volumetric mass), mats are divided into grades 75 and 125. (Changed edition, Amendment 1) The dimensions of the mats must correspond to those given in table. 1 and in the drawing The symbol of the mat must consist of its abbreviated name, the brand of the mat, the brand of the covering material specified in the standards or technical specifications, the dimensions of the length, width and thickness of the mat in millimeters, separated by dots, and the number of this standard. An example of a symbol for a mat of grade 75 on glass roofing felt of grade S-RK, length 3000 mm, width 1000 mm and thickness 60 mm: MVS-75-S-RK GOST Table 1 Name of main dimensions Nominal dimensions, mm Length l Width b

3 Thickness h with an interval of 10 Width of the mineral wool strip m (equal to the thickness of the slabs) for grades: with an interval with an interval of 10 Width of the longitudinal edge (the difference between the width of the covering material and the length of the mineral wool strip) k, not less From 40 to 50 (Changed edition, Change . 12). 1 - covering material; 2 - mineral wool strips. 3

4 2. TECHNICAL REQUIREMENTS 2.1. Mats must be manufactured in accordance with the requirements of this standard in accordance with technological regulations approved in the prescribed manner. For the manufacture of mats, mineral wool slabs with a synthetic binder of grades 75 and 125 according to GOST (Changed edition, Amendment 1) must be used. used: roofing felt in accordance with GOST, glass roofing felt in accordance with GOST, duplicated aluminum foil, rolled fiberglass for thermal insulation and foil roofing felt according to the technical specifications of the manufacturer. The adhesive used is bitumen grades BN70/30 and BN90/10 according to GOST, polyethylene film according to GOST Note. It is allowed, by agreement between the manufacturer and the consumer, to use other covering and adhesive materials. Maximum deviations in the dimensions of the mats should not exceed: length + 3%; -1% in width ± 10 mm in thickness + 3; 0 mm (for 40, 50) + 5; 0 mm (for 60, 70, 80, 90, 100). The thickness difference of the mat should not exceed 5 mm. 4

5 2.3; 2.4. (Changed edition, Amendment 2) The gap between the mineral wool strips s that make up the mat should not exceed 2 mm. According to physical and mechanical parameters, the mats must meet the requirements specified in table. 2. Table 2 Name of indicator Value for brand mats Density, kg/m 3 From 50 to 75 St. 75 to 125 Compressibility under specific load 2000 Pa (0.02 kgf/cm 2, %, no more than 3 2 Thermal conductivity, W/ (m K), no more, at temperature; a) (298±5)K 0.048 0.046 b) (398±5)K 0.083 0, Mats must withstand the test for the strength of adhesion of mineral wool strips to the covering material, provided for in paragraph; 2.7. (Changed edition, Rev. 2). 5

6 3. ACCEPTANCE RULES 3.1. Acceptance of mats should be carried out in accordance with the requirements of GOST and this standard. The volume of a batch of mats is established in an amount not exceeding the replacement production. Dimensions of mats, thickness variations, gap between mineral wool strips, width of the longitudinal edge, density, compressibility, humidity, adhesion strength of mineral wool strips to the covering material of each mat included in the sample is determined for each batch. Thermal conductivity is determined once a quarter and with each change in raw materials and production technology on three mats that have passed acceptance tests. A batch of mats that was not accepted based on the results of control of dimensions, thickness variation, gap between mineral wool strips, longitudinal edge width, adhesion strength is subjected to continuous control according to the indicator for which the batch was not accepted. If a batch of mats is rejected based on the results of determining thermal conductivity, a re-check is carried out. If unsatisfactory results of the re-inspection are received, the supply of mats to the consumer must be stopped. After eliminating the reasons for the release of low-quality mats, each batch is subjected to control. If satisfactory results are obtained for three consecutive batches, it is allowed to carry out periodic monitoring according to Section. 3. (Changed edition, Amendment 2). 4. TEST METHODS 4.1, 4.2. (Excluded, Amendment 1) The length, width and thickness of mats are measured according to GOST on a mat laid with mineral wool strips facing upwards. 6

7 The thickness of the mat is measured at a specific load of 500 Pa (0.005 kgf/cm2). The size of the gaps between the mineral wool strips is determined after every fifth strip of the product being measured. (Changed edition, Amendment 1, 2) The thickness difference is determined by the results of measuring the thickness of the mats according to p The thickness difference is calculated as the difference between the largest and smallest values of the mat thickness The width of the longitudinal edge is measured with an error of up to 1 mm in six places and is calculated as the arithmetic mean of the measurements Density determined without taking into account the covering material according to GOST (Changed version, Amendment 1, 2) The compressibility of the mat is determined according to GOST. Two samples are cut out from each mat included in the sample according to clause 3.1 along with the covering material. The thermal conductivity of the mat is determined according to GOST. From each mat , selected according to clause 3.3, cut one sample at a time without covering material. The moisture content of the mat is determined according to GOST. The test sample is made up of five point samples taken in four places diagonally at a distance of at least 250 mm from the corners and in the center of each mat caught in sampling according to p The strength of adhesion of mineral wool strips to the covering material is determined by examining the mat after rolling it twice into a roll and then unrolling it on a flat surface. The mat is considered to have passed the test if, after the second deployment and rotation of the mat with the strips downwards, not a single strip is completely separated from the covering material. 7

8 (Changed edition, Rev. 2). 5. PACKAGING, LABELING, TRANSPORTATION AND STORAGE 5.1. Packaging, labeling, transportation and storage of mats are carried out in accordance with the requirements of GOST and this standard. (Changed edition, Rev. 2). 5.l a. Mats must be rolled up. Roll weight - no more than 50 kg, roll diameter - no more than 400 mm. Mats up to 1500 mm long can be supplied unrolled in stacks. The foot is wrapped in a strip of paper, the end of the paper is sealed. Foot weight - no more than 50 kg, foot height - no more than 500 mm. Transport packages are formed in accordance with the rules for the transportation of goods, the sizes of packages and packaging means are in accordance with GOST (Introduced additionally, Amendment 2). It is allowed to transport mats in open vehicles at a distance of up to 200 km with the obligatory covering of them with a tarpaulin or other moisture-proof material. Transportation of mats by rail is carried out in wagon loads. Transport marking is carried out with the application of a handling sign “Afraid of dampness” in accordance with GOST. The height of the stack during storage should not be more than 2 m. The holding time of the mats in the warehouse before shipment to the consumer should be at least one day. 8

9 (Changed edition, Rev. 1, 2). 6. MANUFACTURER WARRANTY 6.1. The manufacturer guarantees that the mats comply with the requirements of this standard, subject to the conditions of transportation and storage established by this standard. The guaranteed shelf life of the mats is 6 months from the date of their manufacture. Sec. 6. (Introduced additionally, Amendment 1). INFORMATION DATA 1. DEVELOPED AND INTRODUCED by the Ministry of Installation and Special Construction Works of the USSR DEVELOPERS N. I. Melentyev, Ph.D. tech. Sciences (topic leader); L. M. Sharonova; L. N. Ponomareva; V. V. Eremeeva; M. P. Korablik 2. APPROVED AND ENTERED INTO EFFECT by the Decree of the USSR State Committee for Construction Affairs from Standard fully complies with ST CMEA REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS Designation of the NTD to which reference is given Number of paragraph 9

10 GOST GOST GOST GOST GOST GOST GOST GOST, 4.6, 4.7, 4.9 GOST a GOST GOST Reissue (August 1991) with amendments 1, 2, approved in February 1985, July 1988 (IUS 7-85, 9 -88) 10

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GOST 23307-78

Group Zh15

INTERSTATE STANDARD

THERMAL INSULATION MATS FROM MINERAL WOOL, VERTICALLY LAYERED

Specifications

Thermoinsulating mineral wool vertically-layered mats. Specifications

Date of introduction 1979-07-01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of Installation and Special Construction Works of the USSR

2. APPROVED AND ENTERED INTO EFFECT by Resolution of the USSR State Committee for Construction Affairs dated 09.10.78 N 195

3. The standard fully complies with ST SEV 5850-86

4. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS


	Number of paragraph, subparagraph
GOST 6617-76
GOST 7076-99
GOST 9573-96
GOST 10354-82
GOST 10923-93
GOST 14192-96
GOST 15879-70
GOST 17177-94	4.3, 4.6, 4.7, 4.9
GOST 24597-81
GOST 25880-83
GOST 26281-84

5. EDITION (February 2001) with Amendments No. 1, approved in February 1985, July 1988 (IUS 7-85, 9-88).

This standard applies to thermal insulating mineral wool vertically layered mats, consisting of strips cut from mineral wool slabs and glued to the protective covering material in a position in which the layers of mineral wool are located perpendicular to the protective covering material.

Thermal insulating vertically layered mats are intended for thermal insulation of pipelines with a diameter of over 108 mm and apparatus at temperatures of insulated surfaces from minus 120 to plus 300 ° C.

1. Brands and sizes

1. BRANDS AND SIZES

1.1. Depending on the density (volumetric mass), mats are divided into grades 75 and 125.

1.2. The dimensions of the mats must correspond to those given in Table 1 and in the drawing.

Table 1


Name of main sizes	Nominal dimensions, mm


	40-100 with an interval of 10
The width of the mineral wool strip (equal to the thickness of the slabs) for brands:
	60-100 with an interval of 10
	50-80 with an interval of 10
Width of the longitudinal edge (the difference between the width of the covering material and the length of the mineral wool strip), not less

1 - covering material; 2 - mineral wool strips

MVS-75-S-RK-3000.1000.60 GOST 23307-78

2. Technical requirements

2.1. Mats must be manufactured in accordance with the requirements of this standard according to technological regulations approved in the prescribed manner.

2.2. For the manufacture of mats, mineral wool slabs with a synthetic binder of grades 75 and 125 should be used according to GOST 9573.

(Changed edition, Amendment No. 1).

2.3. The following protective covering materials should be used: roofing felt in accordance with GOST 10923, glass roofing felt in accordance with GOST 15879, duplicated aluminum foil, rolled fiberglass for thermal insulation and foil roofing felt according to the technical specifications of the manufacturer.

The adhesive used is bitumen grades BN70/30 and BN90/10 in accordance with GOST 6617, polyethylene film in accordance with GOST 10354.

Note. It is allowed, by agreement between the manufacturer and the consumer, to use other covering and adhesive materials.

2.4. Maximum deviations of mat sizes should not exceed:



in width
by thickness	3; 0 mm (for 40, 50)
	5; 0 mm (for 60, 70, 80, 90, 100).

The thickness difference of the mat should not exceed 5 mm.

2.3; 2.4. (Changed edition, Amendment No. 2).

2.5. The gap between the mineral wool strips that make up the mat should not exceed 2 mm.

2.6. In terms of physical and mechanical properties, the mats must meet the requirements specified in Table 2.

table 2


Indicator name	Value for brand mats

Density, kg/m		St. 75 to 125
Compressibility under specific load 2000 Pa (0.02 kgf/cm), %, no more
Thermal conductivity, W/(m K), no more, at temperature:
a) (298±5) K

2.7. The mats must withstand the test for the strength of adhesion of mineral wool strips to the covering material, provided for in clause 4.10.

2.6, 2.7. (Changed edition, Amendment No. 2).

3. Acceptance rules

3.1. Acceptance of mats should be carried out in accordance with the requirements of GOST 26281 and this standard.

3.2. The volume of a batch of mats is set in an amount not exceeding shift production.

3.3. The dimensions of the mats, different thicknesses, the gap between the mineral wool strips, the width of the longitudinal edge, density, compressibility, humidity, and the adhesion strength of the mineral wool strips to the covering material of each mat included in the sample are determined for each batch.

Thermal conductivity is determined once a quarter and with each change in raw materials and production technology on three mats that have passed acceptance tests.

3.5. If a batch of mats is rejected based on the results of determining thermal conductivity, a re-check is carried out. If unsatisfactory results of the re-inspection are received, the supply of mats to the consumer must be stopped. After eliminating the reasons for the release of low-quality mats, each batch is subjected to control.

If satisfactory results are obtained for three consecutive batches, it is allowed to carry out periodic monitoring according to clause 3.3.

Section 3 (Changed edition, Amendment No. 2).

4. Test methods

4.1, 4.2. (Excluded, Amendment No. 1).

4.3. The length, width and thickness of the mats are measured according to GOST 17177 on a mat laid with mineral wool strips facing upwards. The thickness of the mat is measured at a specific load of 500 Pa (0.005 kgf/cm). The size of the gaps between the mineral wool strips is determined after every fifth strip of the product being measured.

(Changed edition, Amendment No. 1, 2).

4.5. The width of the longitudinal edge is measured with an error of up to 1 mm in six places and calculated as the arithmetic mean of the measurements taken.

4.6. Density is determined without taking into account the covering material according to GOST 17177.

(Changed edition, Amendment No. 1, 2).

4.7. The compressibility of the mat is determined according to GOST 17177.

From each mat included in the sample according to clause 3.1, two samples are cut out along with the covering material.

4.8. The thermal conductivity of the mat is determined according to GOST 7076.

From each mat selected according to clause 3.3, one sample is cut out without covering material.

4.9. The moisture content of the mat is determined according to GOST 17177.

The test sample consists of five point samples taken in four places diagonally at a distance of at least 250 mm from the corners and in the center of each mat included in the sample according to clause 3.1.

4.10. The strength of adhesion of mineral wool strips to the covering material is determined by examining the mat after rolling it twice into a roll and then unrolling it on a flat surface.

The mat is considered to have passed the test if, after the second deployment and rotation of the mat with the strips downwards, not a single strip is completely separated from the covering material.

4.7-4.10. (Changed edition, Amendment No. 2).

5. Packaging, labeling, transportation and storage

5.1. Packaging, labeling, transportation and storage of mats are carried out in accordance with the requirements of GOST 25880 and this standard.

(Changed edition, Amendment No. 2).

5.1a. Mats must be rolled up. Roll weight - no more than 50 kg, roll diameter - no more than 400 mm.

Mats up to 1500 mm long can be supplied unrolled in stacks. The foot is wrapped in a strip of paper, the end of the paper is sealed. Foot weight - no more than 50 kg, foot height - no more than 500 mm.

Transport packages are formed in accordance with the rules for the transportation of goods, the sizes of packages and packaging means are in accordance with GOST 24597.

(Introduced additionally, Amendment No. 2).

5.2. It is allowed to transport mats in open vehicles over a distance of up to 200 km with the obligatory covering of them with a tarpaulin or other moisture-proof material.

Transportation of mats by rail is carried out in wagon loads.

Transport marking is carried out with the application of the handling sign “Keep away from moisture” in accordance with GOST 14192.

5.3. The height of the stack during storage should not be more than 2 m.

5.4. The holding time of the mats in the warehouse before shipment to the consumer must be at least one day.

5.2-5.4. (Changed edition, Amendment No. 1, 2).

6. Manufacturer's warranty

6.1. The manufacturer guarantees that the mats comply with the requirements of this standard, subject to the conditions of transportation and storage established by this standard.

The guaranteed shelf life of the mats is 6 months from the date of their manufacture.

Section 6 (Introduced additionally, Amendment No. 1).

Electronic document text
prepared by Kodeks JSC and verified against:
official publication
M.: IPK Standards Publishing House, 2001

Heat-insulating mats made of mineral wool, vertically layered. Lamellar (vertically layered) mats VLM Packaging, labeling, transportation and storage

1. BRANDS AND SIZES

2. TECHNICAL REQUIREMENTS

3. ACCEPTANCE RULES

4. TEST METHODS

5. PACKAGING, LABELING, TRANSPORTATION AND STORAGE

6. MANUFACTURER WARRANTY

1. BRANDS AND SIZES

2. TECHNICAL REQUIREMENTS

3. ACCEPTANCE RULES

4. TEST METHODS

6. MANUFACTURER WARRANTY

INFORMATION DATA

Transcript

1. Brands and sizes

2. Technical requirements

3. Acceptance rules

4. Test methods

5. Packaging, labeling, transportation and storage

6. Manufacturer's warranty

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