Lamellar (vertically layered) VLM mats. Thermal insulation mats made of vertically laminated mineral wool Packaging, marking, transportation and storage

The standard applies to heat-insulating mineral wool vertically-layered mats, consisting of strips cut from mineral wool boards and glued onto a protective covering material in a position in which the layers of mineral wool are located perpendicular to the protective covering material.

Date of update: 01.10.2008

STATE STANDARD OF THE UNION OF SSR

HEAT-INSULATING MINERAL WOOL MATS VERTICAL-LAYERED

TECHNICAL CONDITIONS

GOST 23307-78

(ST SEV 5850-86)

COMMITTEE OF STANDARDIZATION AND METROLOGY OF THE USSR

STATE STANDARD OF THE UNION OF SSR

Date of introduction from 01.07.79

This standard applies to thermal insulation vertically laminated mineral wool mats, consisting of strips cut from mineral wool slabs and glued to a protective covering material in a position in which the layers of mineral wool are perpendicular to the protective covering material. pipelines with a diameter over 108 mm and apparatus at a temperature of the insulated surfaces from minus 120 to plus 300 ° С.

1. BRANDS AND SIZES

1.1. Mats, depending on their density (bulk density), are subdivided into grades 75 and 125. (Changed edition, Amendment No. 1) .1.2. The dimensions of the mats must correspond to those given in table. 1 and drawing 1.3. The designation of the mat should consist of its abbreviated name, the brand of the mat, the grade of the covering material specified in the standards or technical specifications, the dimensions along the length, width and thickness of the mat in millimeters separated by dots, and the number of this standard. glass roofing material S-RK, 3000 mm long, 1000 mm wide and 60 mm thick:

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

Table 1

The name of the main dimensions	Nominal dimensions, mm
Length l	600-8000
Width b	750-1260
Thickness h	40-100 at intervals of 10
The width of the mineral wool strip m (equal to the thickness of the slabs) for grades:
75	60-100 at intervals of 10
125	50-80 at intervals of 10
The 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	40 to 50

(Modified edition, Amendments No. 1, 2).

1 - cover material; 2 - mineral wool stripes.

2. TECHNICAL REQUIREMENTS

2.1. Mats must be manufactured in accordance with the requirements of this standard for technological regulations, approved in the prescribed manner. 2.2. For the manufacture of mats, plates of mineral wool on a synthetic binder of grades 75 and 125 in accordance with GOST 9573-82 should be used. (Changed edition, Amendment No. 1) .2.3. The following materials should be used as protective covering materials: roofing material in accordance with GOST 10923-82, glass roofing material in accordance with GOST 15879-70, duplicated aluminum foil, rolled fiberglass for thermal insulation and foil roofing material according to the manufacturer's technical specifications. BN70 / 30 bitumen is used as an adhesive. and BN90 / 10 in accordance with GOST 6617-76, polyethylene film in accordance with GOST 10354-82. It is allowed, upon agreement between the manufacturer and the consumer, to use other covering and adhesive materials. 2.4. Limit deviations of the size of the mats should not exceed: The difference in thickness of the mat should not exceed 5 mm. 2.3; 2.4. (Modified edition, Amendment No. 2) .2.5. The gap between the mineral wool strips s that make up the mat must not exceed 2 mm. 2.6. In terms of physical and mechanical indicators, mats must meet the requirements specified in table. 2.

table 2

Indicator name	Value for brand mats
Indicator name
Density, kg / m3		St. 75 to 125
Compressibility under a specific load of 2000 Pa (0.02 kgf / cm2,%, no more
Thermal conductivity, W / (m × K), no more, at temperature;
a) (298 ± 5) K
b) (398 ± 5) K

2.7. The mats must withstand the test for the adhesion strength of mineral wool strips to the covering material specified in clause 4.10.2.6; 2.7. (Modified edition, Amendment No. 2).

3. RULES OF ACCEPTANCE

3.1. Acceptance of mats should be carried out in accordance with the requirements of GOST 26281-84 and this standard. 3.2. The volume of a batch of mats is set in the amount of not more than a shift production. 3.3. The dimensions of the mats, the difference in thickness, the gap between the mineral wool strips, the width of the longitudinal edge, density, compressibility, moisture, the adhesion strength of the mineral wool strips to the covering material of each mat included in the sample are determined for each batch. The thermal conductivity is determined once a quarter and with each change in raw material 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 dimensions, thickness variation, the gap between mineral wool strips, the width of the longitudinal edge, adhesion strength, is subjected to continuous control according to the indicator for which the batch was not accepted. When a batch of mats is rejected according to the results of determining the thermal conductivity, a second check is carried out. Upon receipt of unsatisfactory re-inspection results, the supply of mats to the consumer should be discontinued. 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 control according to clause 3.3. Section. 3. (Modified 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 upward. 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 measured product. (Changed edition, Rev. No. 1, 2). 4.4. The difference in thickness is determined by the results of measuring the thickness of the mats in accordance with clause 4.3. Thickness difference is calculated as the difference between the largest and smallest values of the thickness of the mat. 4.5. 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. 4.6. The density is determined without taking into account the covering material in accordance with GOST 17177-87 (Changed edition, Amendments No. 1, 2). 4.7. The compressibility of the mat is determined according to GOST 17177-87. From each mat that fell into the sample according to clause 3.1, two samples are cut out together with the covering material. 4.8. The thermal conductivity of the mat is determined according to GOST 7076-87. From each mat selected according to clause 3.3, cut one sample without covering material. 4.9. The moisture content of the mat is determined in accordance with GOST 17177-87. The test sample is made up of five spot samples taken in four places diagonally at a distance of at least 250 mm from the corners and in the center of each mat that fell into the sample according to paragraph 3.1.4.10. The strength of adhesion of mineral wool strips to the covering material is determined by examining the mat after it has been rolled twice into a roll and then unfolded on a flat surface. The mat is considered to pass the test if, after the second unfolding and turning the mat in strips downwards, not a single strip is completely separated from the covering material. 4.7 - 4.10 ... (Modified edition, Amendment No. 2).

5. PACKAGING, LABELING, TRANSPORTATION AND STORAGE

5.1. Packing, marking, transportation and storage of mats is carried out in accordance with the requirements of GOST 25880-83 and this standard (Revised edition, Amendment No. 2) .5.l a. The mats should 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 delivered unfolded in stacks. The foot is wrapped with 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 carriage of goods, the size of packages and packaging means - in accordance with GOST 24597-81. (Introduced additionally, Amendment No. 2) .5.2. It is allowed to transport mats in open cars at a distance of up to 200 km with their obligatory covering with tarpaulin or other moisture-proof material. Mats are transported by rail by wagon shipments. The height of the stack during storage should not be more than 2 m. 5.4. The holding time of mats in the warehouse before shipment to the consumer must be at least one day. 5.2 - 5.4. (Modified edition, Amendments No. 1, 2).

6. MANUFACTURER'S WARRANTIES

6.1. The manufacturer guarantees the compliance of the mats 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. 6. (Introduced additionally, Amendment No. 1).

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the USSR Ministry of Assembly and Special Construction Works. I. Melentiev, Cand. tech. Sciences (topic leader); L. M. Sharonova; L. N. Ponomareva; V. V. Eremeeva; M. P. Korablik 2. APPROVED AND INTRODUCED INTO EFFECT by the Decree of the USSR State Committee for Construction Affairs dated 09.10.78 No. 195.3. The standard fully complies with ST SEV 5850-86.4. REFERENCE REGULATORY AND TECHNICAL DOCUMENTS

	Item number
GOST 6617-76	2.3
GOST 7076-87	4.8
GOST 9573-82	2.2
GOST 10354-82	2.3
GOST 10923-82	2.3
GOST 14192-77	5.2
GOST 15879-70	2.3
GOST 17177-87	4.3, 4.6, 4.7, 4.9
GOST 24597-81	5.1a
GOST 25880-83	5.1
GOST 26281-84	3.1

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

GOST 23307-78

INTERSTATE STANDARD

TECHNICAL CONDITIONS

Official edition

IPK PUBLISHING STANDARDS Moscow

INTERSTATE STANDARD

HEAT-INSULATING MINERAL WOOL MATS VERTICAL-LAYERED

Technical conditions

Thermoinsulating mineral wool vertically-layered mats. Specifications

Date of introduction 07/01/1979

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

Heat-insulating vertical-layered mats are intended for thermal insulation of pipelines with a diameter of over 108 mm and devices at a temperature of the insulated surfaces from minus 120 to plus 300 ° C.

1. BRANDS AND SIZES

1.1. Mats, depending on the density (bulk density), are subdivided into grades 75 and 125.

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

1.3. The designation of the mat should 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 along 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 75 mat on a S-RK glass-roofing material, 3000 mm long, 1000 mm wide and 60 mm thick:

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

Table 1

Official edition Reprinting prohibited

1 - cover material; 2 - mineral wool strips

2. TECHNICAL REQUIREMENTS

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

2.2. For the manufacture of mats, plates of mineral wool on a synthetic binder of grades 75 and 125 in accordance with GOST 9573 should be used.

(Modified edition, Amendment No. 1).

2.3. The following materials should be used as protective covering materials: roofing material according to GOST 10923, glass roofing material according to GOST 15879, duplicated aluminum foil, rolled fiberglass plastic for thermal insulation and foil roofing material according to the manufacturer's specifications.

Bitumen grades BN70 / 30 and BN90 / 10 in accordance with GOST 6617, polyethylene film in accordance with GOST 10354 are used as an adhesive.

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

2.4. Limit deviations of the size of the mats should not exceed:

by length ................................ +3%; -one %

in width ............................... +10 mm

by thickness .............................. +3; 0 mm (for 40, 50)

5; 0 mm (for 60, 70, 80, 90, 100).

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

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

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

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

table 2

2.7. The mats shall withstand the adhesion test of the mineral wool strips to the covering material as specified in cl. 4.10.

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

3. RULES OF ACCEPTANCE

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 the amount of not more than a shift production.

3.3. The dimensions of the mats, the difference in thickness, the gap between the mineral wool strips, the width of the longitudinal edge, density, compressibility, moisture, the strength of adhesion 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.

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

3.5. When a batch of mats is rejected according to the results of determining the thermal conductivity, a second check is carried out. Upon receipt of unsatisfactory re-inspection results, the supply of mats to the consumer should be discontinued. After eliminating the reasons for the release of low-quality mats, each batch is subjected to control.

When satisfactory results are obtained for three consecutive batches, it is allowed to carry out periodic control on and. 3.3.

Sec. 3. (Modified 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 the mat laid with mineral wool strips upward. The thickness of the mat is measured at a specific load of 500 Pa (0.005 kgf / cm 2). The size of the gaps between the mineral wool strips is determined after every fifth strip of the measured product.

(Modified edition, Amendments No. 1, 2).

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

4.5. 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 made.

4.6. The density is determined without taking into account the covering material in accordance with GOST 17177.

(Modified edition, Amendments No. 1, 2).

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

From each mat in the sample by and. 3.1, cut two samples together with the cover material.

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

From each mat selected by and. 3.3, cut one sample at a time without covering material.

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

The test sample is made up of five spot samples taken at four locations diagonally at a distance of at least 250 mm from the corners and in the center of each mat sampled along and. 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 unfolding it on a flat surface.

The mat is considered to pass the test if, after the second unrolling and turning of the mat in strips downward, no stripes are completely detached from the cover material.

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

5. PACKAGING, LABELING, TRANSPORTATION AND STORAGE

5.1. Packing, marking, transportation and storage of mats is carried out in accordance with the requirements of GOST 25880 and this standard.

(Modified edition, Amendment No. 2).

5.1a. The mats should 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 delivered unfolded in stacks. The foot is wrapped with 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 carriage of goods, the size of packages and packaging means - 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 their obligatory covering with tarpaulin or other moisture-proof material.

Transportation of mats by rail is carried out by wagonload shipments.

Transport marking is carried out with the application of a 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. (Modified edition, Amendments No. 1, 2).

6. MANUFACTURER'S WARRANTIES

6.1. The manufacturer guarantees the compliance of the mats 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 Works of the USSR

2. APPROVED AND INTRODUCED INTO EFFECT by the Decree of the State Committee of the USSR for Construction Affairs dated 09.10.78 No. 195

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

4. REFERENCE REGULATORY AND TECHNICAL DOCUMENTS

	Item number, sub-item
GOST 6617-76
GOST 7076-99
GOST 9573-96
GOST 10354-82
GOST 10923-93
GOST 14192-96
GOST 15879-70
GOST 17177-94
GOST 24597-81
GOST 25880-83
GOST 26281-84

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

Editor V.N. Kopysov Technical editor L.A. Guseva Proofreader M.V. Buchnaya Computer layout A.N. Zolotarevoy

Ed. persons. No. 02354 dated 07/14/2000. Donated to the set 02/15/2001. Signed for printing on March 14, 2001. Service l. 0.93. Academic and Publishing House 0.55.

Circulation 149 copies. 509. Zak. 284.

IPK Standards Publishing House, 107076, Moscow, Kolodezny per., 14.

Typeset in the Publishing House on a PC

Branch of IPK Publishing house of standards - type. "Moscow printer", 103062, Moscow, Lyalin per., 6.

VLM lamellar mats are formed from basalt wool bars with a density of 25 to 65 kg / m3, glued on special substrates. The following are used as substrates:

reinforced aluminum foil;
foil-clad fiberglass cloth 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 lamellar mats is the thermal insulation of pipelines and air ducts, an alternative is the thermal insulation of casings of various equipment and tanks. In addition, these mats are truly versatile and retain their effectiveness on any structure and on any equipment.

They are fixed on insulated surfaces in two ways:

by 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 VLM lamellar (vertically layered) 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 upper limit 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).

With a minimum density of vertically layered VLM mats (it is 25 kg / m3), their compressive strength is 5 kN / m2, with a maximum (65 kg / m3) it reaches 10 kN / m2. But water absorption does not depend on the density and never exceeds 1.5%. The wetting of the mats does not affect their service life, but increases the 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 to higher temperatures is also allowed. The fire-technical classification classifies VLM mats to the following groups.

flammability - G1 (slightly flammable);
flammability - B1 (hardly flammable);
smoke-generating ability - D1 (practically smoke-free);
for toxicity of combustion products - T1 (minimum hazard).

Distinctive features lamellar (vertically layered) VLM mats

Long-lasting and extremely easy-to-install VLM lamella mats are one of the special heat-insulating materials widely used both in industry and in the housing sector. The reason for this is their outstanding performance characteristics, which include:

resistance to oils, various fuels, solvents, alkalis and even acids;
significant deformation capacity (lamella compressibility reaches 10%);
high insulating potential.

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

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

(ST SEV 5850-86)

COMMITTEE OF STANDARDIZATION AND METROLOGY OF THE USSR

Moscow

STATE STANDARD OF THE UNION OF SSR

Date of introduction from 01.07.79

This standard applies to thermal insulation mineral wool vertically laminated mats, consisting of strips cut from mineral wool boards and glued to a 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. Mats, depending on the density (bulk density), are subdivided into grades 75 and 125.

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

Example of a symbolmat grade 75 on glass-roofing material S-RK, 3000 mm long, 1000 mm wide and 60 mm thick:

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

Table 1

The name of the main dimensions	Nominal dimensions, mm


Thickness h	40-100 at intervals of 10
Mineral wool strip width m (equal to the thickness of the slabs) for grades:
	60-100 at intervals of 10
	50-80 at intervals of 10
The 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

1 cover material; 2-mineral wool strips.

2. TECHNICAL REQUIREMENTS

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

2.2. For the manufacture of mats, plates of mineral wool on a synthetic binder of grades 75 and 125 in accordance with GOST 9573-82 should be used.

(Modified edition, Amendment No. 1).

2.3. The following materials should be used as protective covering materials: roofing material according to GOST 10923-82, glass roofing material according to GOST 15879-70, duplicated aluminum foil, rolled fiberglass plastic for thermal insulation and foil roofing material according to the manufacturer's specifications.

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

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

2.4. Limit deviations of the size of the mats should not exceed:

The difference in thickness 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. In terms of physical and mechanical indicators, 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 adhesion of mineral wool strips to the covering material specified in clause 4.10.

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

3. RULES OF ACCEPTANCE

3.1 ... Acceptance of mats should be carried out in accordance with the requirements of GOST 26281-84 and this standard.

3.2. The volume of a batch of mats is set in the amount of not more than a shift production.

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.

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

Sec. 3. (Modified 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 upward. The thickness of the mat is measured at a specific load of 500 Pa (0.005 kgf / cm 2). The size of the gaps between the mineral wool strips is determined after every fifth strip of the measured product.

(Modified edition, Amendments No. 1, 2).

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

4.5. 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 made.

4.6. The density is determined without taking into account the covering material in accordance with GOST 17177-87.

(Modified edition, Amendments No. 1, 2).

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

From each mat that fell into the sample according to clause 3.1, two samples are cut out together with the covering material.

4.8. The thermal conductivity of the mat is determined according to GOST 7076-87. From each mat, selected according to clause 3.3, cut one sample without the 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 spot samples taken in four places diagonally at a distance of at least 250 mm from the corners and in the center of each mat that fell into the sample according to paragraph 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 unfolding it on a flat surface.

The mat is considered to pass the test if, after the second unrolling and turning of the mat in strips downward, no stripes are completely detached from the cover material.

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

5. PACKAGING, LABELING, TRANSPORTATION AND STORAGE

5.1. Packing, marking, transportation and storage of mats is carried out in accordance with the requirements of GOST 25880-83 and this standard.

(Modified edition, Amendment No. 2).

5.l a ... The mats should 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 delivered unfolded in stacks. The foot is wrapped with a strip of paper, the end of the paper is sealed. The weight of the foot is no more than 50 kg, the height of the foot is no more than 500 mm.

Transport packages are formed in accordance with the rules for the carriage of goods, the size of packages and means of packaging - in accordance with GOST 24597-81.

(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 their obligatory covering with tarpaulin or other moisture-proof material.

Transportation of mats by rail is carried out by wagonload shipments.

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. (Modified edition, Amendments No. 1, 2).

6. MANUFACTURER'S WARRANTIES

6.1. The manufacturer guarantees the compliance of the mats 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 Works of the USSR

DEVELOPERS

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

2. APPROVED AND INTRODUCED INTO EFFECT by the Decree of the State Committee of the USSR for Construction Affairs dated 09.10.78 No. 195.

3. The standard is fully consistent with ST SEV 5850-86.

4. REFERENCE REGULATORY AND TECHNICAL DOCUMENTS

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

STATE STANDARD OF THE UNION OF SSR

THERMAL INSULATING MATS
MINERAL WOOL VERTICAL LAYER

TECHNICAL CONDITIONS

GOST 23307-78

(ST SEV 5850-86)

COMMITTEE OF STANDARDIZATION AND METROLOGY OF THE USSR

Moscow

STATE STANDARD OF THE UNION OF SSR

Date of introduction from 01.07.79

1. BRANDS AND SIZES

1.1. Mats, depending on the density (bulk density), are subdivided into grades 75 and 125.

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

Example of a symbolmat grade 75 on glass-roofing material S-RK, 3000 mm long, 1000 mm wide and 60 mm thick:

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 for technological regulations, approved in the prescribed manner.

2.2. For the manufacture of mats, plates of mineral wool on a synthetic binder of grades 75 and 125 in accordance with GOST 9573-82 should be used.

(Modified edition, Amendment No. 1).

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

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

2.4. Limit deviations of the size of the mats should not exceed:

The difference in thickness 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. In terms of physical and mechanical indicators, 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 a temperature;

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

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

3. RULES OF ACCEPTANCE

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

4. TEST METHODS

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

4.5. 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 made.

4.6. The density is determined without taking into account the covering material in accordance with GOST 17177-87.

(Modified edition, Amendments No. 1, 2).

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

From each mat that fell into the sample by, two samples are cut out together with the covering material.

4.8. The thermal conductivity of the mat is determined according to GOST 7076-87. From each mat taken at a time, cut one sample 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 spot samples taken at four locations diagonally at a distance of at least 250 mm from the corners and at the center of each mat sampled by.

(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 their obligatory covering with tarpaulin or other moisture-proof material.

Transportation of mats by rail is carried out by wagonload shipments.

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. (Modified edition, Amendments No. 1, 2).

6. MANUFACTURER'S WARRANTIES

6.1. The manufacturer guarantees the compliance of the mats 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 Works of the USSR

DEVELOPERS

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

2. APPROVED AND INTRODUCED INTO EFFECT by the Decree of the State Committee of the USSR for Construction Affairs dated 09.10.78 No. 195.

3. The standard is fully consistent with ST SEV 5850-86.

4. REFERENCE REGULATORY AND TECHNICAL DOCUMENTS

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