2 Characteristics
3.2.1
Limit deviations of the nominal dimensions of the plates, mm, should not exceed:
|
± |
- by lenght |
|
+ 10; — 5 |
- in width |
|
+ 7; — 2 |
- in thickness for slabs of grades 75, |
|
+ 5; — 3 |
- by thickness for slabs of the brand |
3.2.2 For slabs
grade 225, the difference in the lengths of the diagonals should not exceed 10 mm, the difference in thickness
- 5 mm.
3.2.3 By
physical and mechanical properties of the plate must comply with the requirements,
given in table 2.
table 2
|
Name |
Value for slab grades |
|||
|
75 |
125 |
175 |
225 |
|
|
Density, kg/m3, no more |
75 |
125 |
175 |
225 |
|
Thermal conductivity, W / (m K) no more, |
||||
|
298±5 |
0,047 |
0,049 |
0,052 |
0,054 |
|
398±5 |
0,077 |
0,072 |
0,070 |
— |
|
Compressibility, %, no more |
20 |
12 |
4 |
— |
|
Compressibility after sorption moistening, %, not |
26 |
16 |
6 |
— |
|
Compressive strength at 10% deformation, MPa, |
— |
— |
— |
0,04 |
|
Compressive strength at 10% deformation after |
— |
— |
— |
0,03 |
|
Water absorption, % by mass, no more |
— |
— |
— |
30 |
|
Content of organic substances, % by mass, not |
3 |
4 |
5 |
6 |
|
Humidity, % by mass, no more |
1 |
1 |
1 |
1 |
3.2.4
In terms of combustibility, grade 75 plates should belong to the NG group, grades 125 and 175 -
G1, grades 225 - G2 according to GOST 30244.
3.2.5
The amount of harmful substances released from the plates at temperatures of 20 and 40 ° C,
should not exceed the maximum permissible concentrations established by the authorities
sanitary supervision.
STANDARDS AND SPECIFICATIONS REFERRED TO IN THIS STANDARD
GOST 12.4.028-76 SSBT. Respirators ShB-1 "Petal".
Specifications
GOST
503-81 Cold rolled low carbon steel strip. Specifications
GOST 2642.3-86 Refractory materials and products. Methods for the determination of silicon dioxide
GOST 2642.4-86 Refractory materials and products. Methods
determination of aluminum oxide
GOST 2642.7-86 Materials and products
refractory. Methods of determination
calcium oxide
GOST 2642.8-86 Refractory materials and products. Methods for determination of oxide
magnesium
GOST 3118-77 Hydrochloric acid. Specifications
GOST 3282-74 Wire
steel low-carbon general purpose. Technical
conditions
GOST 3560-73 Tape
steel packaging. Specifications
GOST 6009-74
Hot rolled steel strip. Specifications
GOST
6613-86 Wire nets
woven with square cells.
Specifications
GOST
7076-87 Building materials and products. Method for determining thermal conductivity
GOST 9078-84 Flat pallets
General specifications
GOST 9147-80 Laboratory porcelain glassware and equipment Specifications
GOST 9570-84
Pallets are box and rack. General specifications
GOST 13843-78 Aluminum wire rod. Specifications
GOST
17177-87 Heat-insulating building materials and products. Control methods
GOST 18300-87 Rectified technical ethyl alcohol.
Specifications
GOST
18866-93 Crushed stone from blast-furnace slag for production
mineral wool. Specifications
GOST 22831-77 Pallets
flat wooden boards with a gross weight of 3.2 tons, dimensions 1200x1600 and 1200x1800 mm Specifications
GOST
24597-81 Packages
cargo. Main parameters and dimensions
GOST 25336-82 Laboratory glassware and equipment. General specifications
GOST
25880-83 Materials
and construction thermal insulation products. Packaging, labeling,
transportation and storage
GOST 25951-83 Polyethylene shrink film. Specifications
GOST
26281-84 Heat-insulating building materials and products. Acceptance rules
GOST
26381-84 Disposable flat pallets. Technical requirements.
GOST 2405-88 Manometers,
vacuum gauges, pressure and vacuum gauges, pressure gauges, draft gauges and thrust gauges. Are common
specifications
GOST 13045-81 Rotameters.
General specifications
GOST
30256-94 Construction materials and products. Method of determination
thermal conductivity with a cylindrical probe.
OST 25-11-38-84 Clock
sandy
TU 25-7139.003-88 Clock
sandy
THAT
36-1587-81 Quantity determination device
inclusions in the mineral
wate
APPENDIX B
(recommended)
SCROLL
organic substances used as dedusting agents
additives in the production of mineral wool
table
B.1
|
Name of dedusting additives |
Designation of the normative document |
Name |
|
Oil construction bitumen |
GOST 6617-76 |
Couples |
|
Oil bitumen |
GOST 22245-79 |
Also |
|
fuel oil |
GOST 10585-75 |
Couples |
|
Industrial oils |
GOST 20799-88 |
Couples Oil |
|
Heavy cylinder oils |
GOST 6411-76 |
Couples |
|
Raw vegetable tall oil |
TU 13-0281078-119-89 |
Also |
|
Oil shale fuel |
GOST 4806-79 |
|
|
Tallow pitch |
TU 13-0281078-84-89 |
Vapors of hydrocarbons |
|
Pectol |
TU 13-0281078-188-90 |
|
|
Emulsol |
TU 38-101714-84 |
Vapors of hydrocarbons. Spray can |
|
Oil extracts |
TU 38-101714-84 |
Vapors of hydrocarbons |
|
Emulsin |
GOST 18659-81 |
Also |
TOkey words: mineral wool, molten rock
rocks, melt of silicate industrial waste, manufacture of products, heat-insulating material, commodity wool
