This part specifies two methods for determining the average fiber diameter of mineral wool and its products. The microscope method specifies the instruments and materials, sample preparation, test procedures, calculations and test results; the airflow meter method specifies the principles, test instruments, test procedures and test results. The microscope method is applicable to mineral wool and its products not less than 3μm. Airflow meter method, method A is applicable to rock wool, slag wool and their products of 4.0μm to 7.6μm, and method B is applicable to glass wool of 3.0μm to 5.5μm. The microscope method is an arbitration test method. GB/T 5480.4-2004 Test methods for mineral wool and its products Part 4: Average fiber diameter GB/T5480.4-2004 Standard download decompression password: www.bzxz.net

IC5 9°.100. 1C
National Standard of the People's Republic of China
GB/T5480.4—2004Www.bzxZ.net
G3/T5450.41985
Test methods For muineral wool and its products-Part 4.Ayerage dianeter of 2004-04-30 release
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2004-12-01 implementation
(B/T54303 Mineral content persimmon and its products test method 3 divided into 7 parts: Part: General!
Part 2: Verticality and semi-integrity:
: Part 3, size and density;
Part 1: Average fiber diameter
- Part 5: Foil ball content,
. - Part 3: Acidity coefficient;
- Part 7, Absorption.
This part is the first part
CB/T 5480.4—204
This revision refers to the reference factory JISA95041999* cotton heating material BS2972186 machine thermal material test method? T(HF-1 Bin class Chen thermal material test method related content abandoned this part replaces the billion B/T5480.4-055 mineral wool and its products allowable average white diameter test age method. The production part and G price/70,4-195 sweep out the main changes are as follows: - - will show the magic of the collection of the day after the teaching to adjust to 5C times the skin with two. When the intensity of the mirror method The following is a revised example of the airflow fiber measurement method based on the actual situation of the device: the airflow method for measuring the semi-uniform lightness of glass fiber and the table. Please note that some of the contents marked in the law may involve patents. The issuing agency of the standard shall be responsible for identifying these patents. The Ministry of Design Center of China Thermal Insulation Industry Association.
This part is sponsored by the National Technical Committee for Standardization of Thermal Insulation Materials AC This part is sponsored by the South China Institute of Thermal Insulation Fiber Research and Design. The main contributors of this part are Chen Shang, Zhang You, This part is published twice: 2013-10-13
1 Scope
Test methods for mineral wool and its products
Part 4: Average fiber diameter
GR/T5480.4-20U4
This part studies the mineral wool and its products; the average fiber diameter test method: the microscope method specifies the test device and materials, special conditions, test methods, calculation and test results; the air flow method specifies the principle, test device, test steps and test results; the microscope method is applicable to an expansion of not less than 2m Materials and their systems. Air flow methods, A method is used to induce" 4, um7.6m rock products are modified with cotton, B method is applicable to 3.0~.5m surface environment, the obvious WeChat is sent for punching test method 2 current normative document
the following ten clauses are applicable to the wood part of G580 and become this part: Clauses: The new left-hand amendment (excluding dynamic reading content) or revisions are not applicable to this part, however, this part is released and the major plans are made to reach an agreement on whether to use the latest version of these clauses. The following is not a reference to the original version of this document, which is in accordance with the version number and edition number of this document: 13180-24 Test methods for mineral wool and its products - Part 1: General 3 Terms and definitions - The code and definitions established in the third draft of B81-2334 shall be followed. 4 Test conditions - Or GB/5480.1-2371 - Part 4 - Implementation specifications - 5 Selection of test details - In accordance with the provisions of Chapter 5 of GB541-20 6 Microscope method E.1 Apparatus and materials 5.1.1 Microscope: The magnification shall be above 800, the resolution shall not be too large, 0.5 m5..2 Microscope.
..3 Standard: Prepare the product by mixing the sodium and building materials of equal volume and structure, 5.2 Preparation of test specimens
Take the product delivered by the delivery, draw out the stored fiber (the sample should be free of adhesive, adjust the size of the sample to a suitable size, take it from the front: m, length, place it on the carrier, if someone chases the limit, use it to divide it into two parts, and make each 3 carrier variable
6.3 Test the stepper
and change the glass slide to the limit tube. The fiber should not move too fast on site. Adjust the fiber to make it clear and one edge should match the scale line of the heliostat. Read the grid against the micrometer on one side, and it should be estimated to be half a grid. 1 This method starts from one end and measures 314U1 fiber on the missing piece. It is not possible to measure GB/T with this method. 5480.4-2004
is not specified, and the same fiber weight is exempted, a total of 3 pieces, 10 fibers are counted. 6.4 Calculation and test results
6.4.1 Average fiber diameter
First, the integer value of the weight is obtained, and the average square number is calculated according to formula (1):
Average square number:
X, the actual measured number of single fiber
R—the measured number of fibers.
Use the predetermined calibration length of each grid of the daily micrometer, 4, (um), and convert the average number of grids measured into the average diameter (=, and extract the correct value of u, m
6.4.2 Standard table of fiber diameter
The standard deviation of fiber diameter (S) is calculated according to (2), taking two significant figures: S=d
Ix--X)
S--the actual deviation of fiber diameter: the unit is meter (m). -The calibration length of each grid of the daily micrometer, the unit is micrometer (m). B. 2, 3 The coefficient of variation of fiber diameter
and the coefficient of variation of fiber diameter (%) are calculated according to formula (3), taking two significant figures: C
Where:
The coefficient of variation of fiber diameter, a single fraction! %）-average fiber weight, in microns),
7 Airflow method
7.1 Principle
When airflow passes over a certain fiber, the force it receives is related to the diameter of the fiber: the airflow is used to determine the functional relationship between the diameter of the fiber and the airflow in the chamber under specific conditions, and is collectively called the average diameter of the fiber. 7.2 Test equipment
7.2.1 Class 7, effective mass 200, value 0.01. 7.2.24 Flow fiber calibration instrument: the airflow range is 1.0~f.51./%im. The pressure difference is 15GCPa, and there is a test chamber as shown in the figure.
1- Sample pressing chamber:
2 Sample loading chamber.
7.34 method (applicable to rock wool and mineral wool)
73.1 Test steps
Figure 1 Sample set
GB/T 54B0.4—20D4
Weigh about 3) of the sample and burn it at a temperature of about (559±29) for 31m to remove the binder and sieve it. Remove obvious non-filamentous materials by sieving: Weigh the rock wool test material for 5.00 and accurately measure the amount of slag on the sample 6.15. Place it in a test set with an effective area of ​​12m2 and carry out flow measurement on the air system with pre-set water content and pressure gauge. Slowly open the air flow regulating valve to make the melting surface drop to the same level as the pressure drop, and record the number of flow rates at the same level as the rotating belt. The box is determined to be 0.C5L/mi. Each sample is divided into two parts. If the difference between the two parts exceeds 15% of the average, the sample should be measured once. Take the two similar filtration results
7.3, and calculate the arithmetic half mean of the two measurements, accurate to 0.11./nuin. Find the average fiber diameter from Table 1 as the red mean point diameter of the core sample
Table 1 Air flow rate (0) and fiber average diameter (1) comparison capsule: Applicable to rock wool, mineral comb) Q
Lic ain
L/urin
GB/5480.4—2304
7.4R method (for glass brown)
2.4.1 Test steps
Take 35 test pieces and burn the deodorizing agent in a temperature of 50°C. Fill the test piece with a 0.3-0.1-liter tool and transfer it evenly into a test fence with an effective volume of 3.1m3. Use a test cover to pressure the test piece on a pre-lightened surface and make a flow determination on the gas-filled building with a water-retaining structure. The flow rate of the standard strong airflow adjustment card is adjusted to the same level as the film side, and the blue mark is aligned with the blue mark. The concentration of the drug in the center of the flow plate is recorded. Mucic acid is marked at 0.05L/t:n: 2 test samples are reported to the doctor. If the result is the average of 1 large, Liu Kuanzhong must determine 1 new sample and take the closest 2 flux results. 4.2 Test results
The arithmetic mean of the measured values ​​is accurate to 1.mm. The fiber horizontal diameter obtained from the table is the standard of the sample 2D and diameter
9 Station record
Nuclear B/580.12GC4 6th meeting regulations and the test method should be indicated Table 2 Air flow rate: Q) and fiber bundle average diameter (comparison table (applicable to glass wool) Q
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