This standard specifies the test methods for density, moisture content and water absorption of inorganic rigid thermal insulation products. GB/T 5486.3-2001 Test methods for density, moisture content and water absorption of inorganic rigid thermal insulation products GB/T5486.3-2001 Standard download decompression password: www.bzxz.net

IC5 91. 120. 70
National Standard of the People's Republic of China
GB/T 5486. 1 -~-5486.4---2001Test methods of inorganic rigid therinal insulation2001-04-29 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
2001-10-01Implementation
GBT 5186- 3—2D01
Test method for light-mechanical thermal insulation products is based on (i13/T5486.1--5-86.3-1) test method for thermal insulation products, comprehensive test method for silanol modified thermal insulation products, test method for expanded stone products, test method for glass thermal insulation products and other inorganic modified thermal insulation products test methods. When it was formulated, the source standard was renamed as Test method for inorganic rigid thermal insulation products 3. The test method for inorganic rigid thermal insulation products includes the following parts: Part 1 (i.e. 486.1: Test method for inorganic rigid thermal insulation products - Appearance quality: Part 2 (i.e. /T: 486.2): ​​Light-mechanical thermal insulation products - Test method for appearance quality: The product's test method reaches mechanical properties: Part 3, namely GB/T546.3): Test methods for inorganic rigid thermal insulation products - Mechanical properties, moisture absorption and water absorption rate: Part 4 (ie B/T54&1, Test methods for inorganic rigid thermal insulation products - Burning properties. This standard is Part 3,
This standard is based on ASTMC61395$ mold K fracture service special fast and tube shell insulation product specifications>A51MC3J3--95 prefabricated block thermal insulation product size test method 3, AS1MC24)-97 standard foam Qi sound absolute block test method, combined with my country's pressure situation GB/T5486.3-1985 fracture expansion repair special rock thermal insulation product test method The density and moisture content test methods are revised retrogradely. This standard mainly modifies GP/T=486.3-198 as follows: 1. The original name of the standard is changed to the test method for large-scale insulation products, and the water absorption rate and water content test specimen size is changed to a specimen with a length and width not less than [UmmXUmL and a thickness equal to the product thickness. 3. The length of the specimen for the density and moisture content test of the kidney shell and the strong plate is changed from a length and width not less than 10m×100m, and the thickness is as thick as possible:
4, and the water absorption test method is added.
This standard replaces CB/T5486.8-1085 from the date of implementation. This standard is exported abroad Proposed by the National Bureau of Building Materials Industry. This standard was drafted by the National Technical Committee for Standardization of Thermal Insulation Materials (SBTS/TC191). The responsible drafting units of this standard: Henan Building Materials Research and Design Institute, Shanghai Qiangwei Insulation Materials Co., Ltd., Shanghai Baobo Light Materials Co., Ltd., Jiangsu Jiangyinshan Port Baoyi Materials Co., Ltd., Nanyu Xinfu City Pingqiao District Zhongshan Baoman Construction Factory, Shanghai Construction Science Institute Fengneng Material Co., Ltd., Henan Province Xinyang City Pingqiao Pingti Zhenshen Factory, the main persons in charge of this standard are Zhang Lizang, Kaijun, Ma Gongjun, and this standard is entrusted to Henan Building Materials Research and Design Institute for the interpretation. This standard was first issued in October 1985: 12
National Standard of the People's Republic of China bzxZ.net
Test methods for inorganic rigid thermal insulation products
Temperature, moisture content and water absorption
Tesl muthhs of inarganic rigid thermal insulation products --eusily anl mnisture rantent and waterahaarptian standard now defines the test methods for inorganic rigid thermal insulation products, moisture content and water absorption. 2 Reference standards
GR/T5456.3—2001
The following standards contain provisions that have become different standards through the use of this standard. When this standard is published, the new standard will be effective: the new standard will be used by you, and the parties to the same technical standard should discuss the possibility of using the following other standards to avoid the new version, G4R.! 20 Test method for inorganic thermal insulation products External quality 3 degrees. Water content zero test method
3.: Instrument and monitoring equipment
3.1.1 Electric heating blast: Drying box
31.2 Balance: Cheng Shangdash Department single requirements, graduation value bottom less than weighing (piece quality book 3.1.3 Steel point ruler: graduation value 1mm.
3.1.4 Vernier ruler: Set 00m yuan,
32 Test standard
Randomly select a sample, each as above, the length and width of the test piece or piece shall not be less than 100 times m means 100E, its thickness is the thickness of the product, the plate is processed into the thickest possible standing piece, and the whole piece of product can be used as the test piece. 3.3 Test procedure || tt || 3.3.1 In the above test piece, the test piece is about the same as the above test piece. The test piece is kept in the electric heating box for about 5 minutes. Bake at 385K ± 5K (110 + 5)- + to constant quality. If the adhesive material changes under this temperature, it should be lower than its change temperature by 1, and then move it to the room temperature for cooling. The judgment period for constant quality is 3h twice, and the rate of change of the test property is (100%). 3.3.3 Weigh the mass of the test piece after drying (, retain 5 significant figures. 3-3.4 Technical GB/T 54.1 Method for measuring the size of the test piece, calculate the volume of the test piece. 3.4 Calculation and evaluation
3.4.1 The rate of the test piece is calculated by formula (1), up to 1g. p=
Where p—density of the test piece, ks/m;
Mass after drying, g:
National Quality Supervision, Inspection and Quarantine General of the People's Republic of China 20C1-0429 Group 21
2001-10-01 Standard
The volume of a test card. m.
GB/T 6486.3:20C1
3.4.2 The density of the product is 1kg/m3, 3.4.3 The moisture content of the specimen is 1.1% according to (2). GG
Where, is the moisture content of the specimen, G, is the mass of the specimen in good condition, kk: the mass of the specimen after baking, kg.
3. 2.4 The moisture content of the product is the moisture content of three test pieces. The moisture content of the test piece should be 0.4%. 4.1 Instruments and materials 4.1.1 Three pieces of stainless steel or zinc electrode: 4.1.2 The surface of the test piece is about 29F × 21mr. 4.1.3 Heat and air drying oven. 4.1.4 The measuring tools are in accordance with 3.1.5 and 3.1.4. Requirements 4.1.5 Balance, weigh 3kg·division value (.1. 4.1.6 Gross market.
4.1.7 180mm×183mm×45mm soft strong oxygen foam plastic.4.2 Test piece
Randomly select three products from the sample: the length and width of the test piece are about 4mmXmm, and the thickness is the thickness of the test piece. 4.3 Laboratory night conditions
Temperature 293K±5(20)±5 Relative humidity 6±:2.4 Test steps
4.4.13.3.2 Bake the test piece to the desired quality and cool the whole room. 4.4.2 Weigh the weight of the test piece after baking, accurate to 0.1g. 4.4.3 Calculate the volume of the test piece according to the dimensions of the test piece according to the method in 3.3.4. 7.4.4.4 Place the test piece on the wooden grid at the top of the water tank. The distance between the test piece and the grid shall not be less than mm. Then place another large weight on the surface of the microstructure. 4.4.5 Pour tap water with a temperature of ℃ ± 5℃ into the water tank. The water surface should be mm. Set the soaking time to 2h.4.4.6 Take out the test piece immediately after 2b. Drain the test piece on a towel that has been wrung out for 10min. Then use a foam plastic absorbent to find the residual water on the surface of the test piece. Absorb water once per surface for 10min. Before absorbing water, shake out the water in the foam plastic vigorously. Absorb water on each surface at least twice.
4.4.7 After the residual water on each surface of the test piece is absorbed, check the quality of the test piece. 5 Calculation and evaluation of results
4.5.1 The mass water absorption of each specimen is calculated accurately to 6% by formula (3), W—test mass or water absorption, %: [G, — the volume of the specimen after water seepage, k
G, -- the tenth mass of the specimen before water seepage, kg4.5.2 The volume water absorption of each specimen is calculated accurately by formula. 4.1-G, 100
test volume water absorption, length:
test volume: Tm;
t/T 5426.3-2001
--the density of the product is taken as the arithmetic mean of the water absorption of the three test products. The result is 4. 5. 3
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