Standard Number: GB/T 6324.2-2004
Title: Test method of organic chemical products--Part 2:Determination of dry residue after evaporation on a water bath for volatile organic liquids
Language: Simplified Chinese
Publication Date: 2004/3/15
Execute Date: 2004/12/1
Standard Type: Method
Publisher: Chinese Standards(GB)
Number of Pages:
: Test method of GB/T6324 "organic chemical products are divided into the following several parts: - part 1: liquid water immiscible organic chemical product test - part 2: volatile organic liquid water bath on the determination of dry residue after evaporation - part 3: organic chemical products - part 4: the determination methods of reduction of potassium permanganate
material Liquid products of trace sulfur determination micro coulomb method - part 5: dial base compounds content in organic chemical products - part 6: determination of the volumetric method in which the organic chemical products spectrophotometry for determination of the trace dial base compound content in the department of GB/T6324 is divided into three parts: the part 2. Redraft method is used to modify this section USES the international standard ISO759:1981 "industrial volatile organic liquid water bath on the general method for determination of the dry residue after evaporation (English version). Article chapter listed in appendix A for this part number and ISO759: article 1981 chapter numbered reference list. Using ISO759: considering the China's national conditions, in 1981, the department Points and made some changes, for the main differences between the deleted ISO759: chapter 8 of the 1981 test report. This section instead of GB/T6324.2-1986 "on the volatile organic liquid water bath after the evaporation general method for the determination of dry residue". This part of the main changes compared with GB/T6324.2-1986 As follows: - increased the content of the warning and sampling chapter (see this version of the warning and chapter 5); - will this part applies to evaporation residue is not less than 5 MG/KG of volatile organic liquid is modified to apply to evaporation residue is not less than 10 MG/KG [0.001 (MG/ML) of volatile organic liquid (1986 In chapter 1, this chapter 1); - the evaporating dish in the oven heating 1 h, release cooling after 45 min to weigh in the dryer, repeat the above operation to quality constant revision for the evaporating dish in the oven heating 2 h, put people in the dryer to cool to ambient temperature after weighing, (in 1986 version of the chapter 4, this version Chapter 6); - there will be a residue of evaporating dish in the oven heating 2 h, release cooling after 45 min to weigh in the dryer, put people in the oven heating 1 h, put people in the dryer cooling 45 min, weighing to quality constant change as there will be a residue of evaporating dish in the oven heating 2 h, let people cool to ring around in dryer Environmental temperature after weighing, repeat the above operation to quality constant (in 1986 version of the chapter 4, this version of chapter 6); - the results calculated with the sample density from 20 ℃ under the modified to test the temperature of the density of the (in 1986 version of the chapter 5, this chapter 7). - the results of calculation increased milligrams per liter (MG/L), MG each Every 10 KG (MG/KG), MG. The representation method of ml (100 MG/ml) (see chapter 7). The appendix A of this section is informative appendices. This part put forward by China petroleum and chemical industry association. This part of the national chemical standardization technical committee organic branch (CSBTS/TC63 / SC2 ) under centralized. This part of the drafting unit: China petrochemical co., LTD., Beijing chemical industry research institute. This part of the main draftsmen: Hu Yanfeng this part first published in April 1986.
Description:The provisions of this part of gb/t6324 the volatile organic chemical liquid products on the water bath general test method for the determination of dry residue after evaporation. This section applies to the evaporation residue is greater than or equal to 10 mg/kg/mass fraction of 0.001% of the volatile organic liquids. If the evaporation residue is less than 10 mg/kg/mass fraction of 0.001% can be appropriately increase the sampling volume.
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Tile in English: Test method of organic chemical products--Part 2:Determination of dry residue after evaporation on a water bath for volatile organic liquids