This standard specifies the method for determining the softening point of asphalt by the ring and ball method. The softening point of asphalt is the temperature of the sample when it falls 25 mm due to heat under the test conditions, expressed in °C. This standard method is applicable to petroleum asphalt and coal tar asphalt samples with a softening point range of 30 to 157 °C determined by the ring and ball method. For softening points in the range of 30 to 80 °C, distilled water is used as the heating medium, and for softening points in the range of 80 to 157 °C, glycerin is used as the heating medium. This standard does not specify safety issues. If necessary, the user is responsible for formulating appropriate personal safety protection measures before use. GB/T 4507-1999 Determination of the softening point of asphalt (ring and ball method) GB/T4507-1999 Standard download decompression password: www.bzxz.net

ICS 75 120
National Standard of the People's Republic of China
GB/T 4507—1999
Standard test method for softening point of bitumen (ring-and-ball apparatus)
Promulgated on August 10, 1999
Implemented on June 1, 2000
Promulgated by State Quality and Technical Bureau
GB/1:45071999
This standard is equivalent to the softening point test method of ASTM D161995 using American standard materials and micro-tests. The standard is different from AST36-19 in some aspects: the heating medium used in ASTM6-1905 is either water or oil, this standard uses distilled water and oil, because the softening point of benzene as the medium is relatively close, the softening point of glycerol as the medium is within 157℃, and the softening point of 7-diol as the medium is within 50-15℃, and it is harmful to human health if it is in contact with or inhaled by ethyl alcohol. This standard does not use adipic acid as the heating medium. The differences between this standard 15460-184 are as follows: 1. Applicable differences: G/T1U71HR1 only uses petroleum, this standard does not apply to petroleum, and is applicable to special oil asphalt. The softening point determination method of Fangda Mingyou Baishi Shantou has also been changed to the softening point determination method. 2. Experimental conditions: GB/14507-1!J8 The distance between the lower support plate and the lower edge of the convex ring is 25.41tm1. The distance between the lower edge of the convex ring and the lower support plate is 2:
3. The difference requirements are different: GB/T4507-1, the reproducibility is set as follows:
Reproducibility:
106~1()
Reproducibility The difference between the test results provided by each experimental study should not exceed 5.5 (. Repeatability and reproducibility are specified in the following repeatability Conditions: The same - selected authors, for the same product beans, the difference between the two drilled fruits shall not exceed 12 ℃. Reproducibility: For a sample, the difference between the test results provided by a laboratory shall not exceed 545U7-84. This standard is issued by China Petrochemical Corporation: This standard is issued by the University of Science and Technology (East China Oil Research Institute). This standard is issued by the University of Science and Technology (East China Heavy Oil Research Institute): ... 457ax4
1.1 This standard specifies the method of determining the softening point by the ball and ring method. The softening point of the sample is determined by heating the sample to a temperature of m under the condition of the test. The temperature is shown in Table 1.2 This standard specifies the softening point range of petroleum coal in the range of 30 to 157°C. For the softening point at 1°C, distilled water is used as the heating medium. For the softening point at 1°C, distilled water is used as the heating medium. For the softening point at 1°C, distilled alcohol is used as the heating medium. 1.3 This standard does not specify any safety issues. If necessary, the user is requested to formulate appropriate personal safety protection measures.
? Referenced Standards
The following standards include the following documents, which, by reference, constitute part of this standard. Unless otherwise specified in the standard, the following referenced standards are currently valid standards:
GTi/ T14 Liquid Temperature Test for Petroleum Products GET1! 17 Liquid Temperature Test Method
3 Summary
3.1 Cut two horizontal discs into a sheet or a circle and heat them at a certain speed in a heating medium. A ball is placed on the disc. The melting point is the average temperature of the ball when the sample softens and is placed 2 meters below the surface. 4.1 Oil is a material with a strict melting point. As the temperature rises, it softens and its viscosity decreases. Therefore, the softening point must be determined strictly in accordance with the test method. 4.2 Softening point is a key technical indicator in the product standard: 5 Apparatus and Materials
5.1 Apparatus
5.1.1 Ring or ring, its size is shown in Figure 1! 5-1-2 Support plate: a flat yellow woven plate with a size of 50mm×75m 5.1.3 Balls: two steel balls with a diameter of #.5mm, each with a maximum mass of 0.5±U.0g. 5.1.4 Ball positioners: two steel ball positioners are used to position the balls in the sample. The general shape and size are shown in Figure 16). 5.1.5 Heatable glass container: The inner diameter of the heated glass container shall not be less than 85 mm and the distance from the bottom to the heating element shall not be less than 120 mm. 5.16 Ring support frame and bracket: only the copper support frame is used for supporting the horizontal position of the stomach. Its shape and size are shown in Figure 1. Its installation diagram is shown in Figure 1 (>). The bottom of the ring of the support frame is 5 mm from the upper surface of the lower support, and the lower surface of the lower support is 1 m away from the two molds. 5.1.7 5.1.7.1 The bottom of the H/514 Chinese model is installed at the technical requirements of the solid F. The temperature range is 30--1℃. Therefore, the small division value is 1. The full-scale temperature meter
5.1.7.2 The appropriate meter should be placed on the top of the instrument according to Figure 1 (). Make the bottom of the water ball level with the bottom of the ring, and the distance between them is within 3m, but do not connect the front ring or support frame, and do not allow other short meters to replace it. 5.2 Materials
5.2.1 Heating medium
5.2.1.1 Freshly boiled water.
5.2. 1.2H
5.22 Separation agent: two parts of H oil are used to make a solid powder and consider: 52.3 blade.
5. 2. 4 Sieve: sieve hole 0. 3-~). 3 rmr metal. sBa!a.mmt
Let: Home first 12mr
Ball positioner
Figure 1 Ring, steel ball positioner. Bracket, combination set Figure 6 Sampling
61 According to 615/1114? Pay representative Can samplebzxZ.net
Preparation work
GB/T4507—1999
7.1 All petroleum green test column preparation private test must be completed within 65, and the refining oil must be completed within 4.51. CAUTION: Do not heat the sample to the point where it becomes fluid or bubbles enter the sample. 7.1.1 The heating time of the sample shall not exceed 2 hours. 7.1.2 The heating time of the sample shall not exceed the estimated temperature of the oil. 7.1.3 The sample shall not be heated again. The sample shall be prepared with fresh solution. 7.2 The softening point is estimated to be between 129°C and 100°C. The sample shall then be placed on a support plate with a separator. Otherwise, the sample will completely dissociate from the ring. 7.3 In each ring, add a little excess of the sample to ensure that the sample is at least cooled to room temperature. Note: The sample should be placed in a room with a relatively high temperature and in an environment with a softening point of 3 m or more. The time from the start of the test to the end of the test must be more than
7.4 When the sample is cooled, use a slightly heated knife or a knife to clean the remaining green. Make sure that each piece is full and consistent with the items in the ring.
8 Test steps
8.1 Use one of the following media.
.1.1 The softening point of the new water is 3~8℃. The starting temperature of the heating medium is 1℃. 8.1-2 The softening point of the glycerin is 80-157℃. The humidity of the heating medium should be 11! .1.3 For comparison, all softening points below the specified value should be measured in a water bath. In the water bath, place two sample rings and the ball positioner in the sample chamber. Place the appropriate amount of reagent on the meter according to the meter’s indication. Fill the chamber with the steel ball and make sure all ends are in the appropriate position. Place the steel ball at the bottom of the chamber and other parts of the support to the appropriate starting temperature. If necessary, place the bath in ice water or heat the bath carefully. Place the bath in an appropriate starting temperature. Make sure the instrument is in the appropriate position. Be careful not to stand still.
B.The steel ball is placed in the wire rod by means of a forging from the bottom of the machined part and heated from the bath at a constant rate of 8.5/min to prevent the influence of ventilation. If necessary, a protective device may be used and the heating rate cannot be taken during the test. After 8 minutes, the temperature rise should reach 5./in + 0.5°C:/min. If the temperature rise rate is within this limit, the test should be repeated for the next test. 8. The two balls can be selected with the same temperature, and the range has been recorded. There is no problem with the calibration. The average of the two temperatures is taken as the softening point. If the difference between the two temperatures exceeds 1°C, a new test is performed. 9
3.1 The softening point is determined by the test method for the given sample. When the softening point is slightly higher than 1°C, the softening point measured in the water correction is limited to the softening point determined in the oil bath. 9.2 When the total chemical conversion is 1, the softening point of the lubricating bath is 3.5℃ and the most likely softening point of the coke is 82℃: when the H non-precipitation point is lower than these, the softening point in the technical bath is converted to the softening point in the water bath. Note that 9.2-1 When converting the softening point of the glycerin bath to the softening point of the water bath, the corrected value of the glycerin bath is -1.5℃ for the water bath. This correction value can only roughly indicate the level of the softening point. To obtain the exact softening point, repeat the test in water. 9.2.2 In particular, if the average softening point of the glycerin bath is B.0 or lower, and the average softening point of the tar is 77.3℃ or lower, the test should be repeated in water. GB:T 4507 .1999
9.3 When converting the water content to H-doped ... 10.1 The average of the three repeated measurements shall not be greater than 1.3C. 10.2 The average of the test results provided by two laboratories for the same sample shall not exceed 3.0% of the reported value. The average of the two results shall be taken as the reported value. 11.2 The test results shall indicate the type of medium to be tested.
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