This standard is published for the first time. This standard specifies the test method for the spontaneous combustion of chemical products. This standard is applicable to the determination of the spontaneous combustion of solid, liquid and powdered chemical products after short-term contact with air at room temperature. This standard is equivalent to NF20-040:1985 "Determination of the flammability of gases produced by the hydrolysis of solid and liquid industrial chemicals" (French version). GB/T 21850-2008 Determination of the spontaneous combustion of solid and liquid chemical products GB/T21850-2008 Standard download decompression password: www.bzxz.net
This standard is published for the first time. This standard specifies the test method for the spontaneous combustion of chemical products. This standard is applicable to the determination of the spontaneous combustion of solid, liquid and powdered chemical products after short-term contact with air at room temperature. This standard is equivalent to NF20-040:1985 "Determination of the flammability of gases produced by the hydrolysis of solid and liquid industrial chemicals" (French version).
This standard is equivalent to NFT20?039:1985 "Determination of spontaneous combustion of solid and liquid chemical products" (French version), and the standard text format has been edited according to GB/T1.1-2000.
This standard is proposed and managed by the National Technical Committee for Standardization of Dangerous Chemicals Management (SAC/TC251).
The responsible drafting unit of this standard: Jiangsu Entry-Exit Inspection and Quarantine Bureau.
Participating drafting unit of this standard: Jiangxi Entry-Exit Inspection and Quarantine Bureau.
Main drafters of this standard: Zhou Feizhou, Zhan Chunrui, Li Jianjun, Kou Haijuan, Jiang Hongxing, Chen Xiaowei, Liu Junfeng.
This standard is published for the first time.
The clauses in the following documents become the clauses of this standard through reference in this standard. For all referenced documents with a date, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated referenced documents, the latest versions are applicable to this standard.
GB/T 21847 Determination of the flammability of industrial chemical product gases

[CS13.300
National Standard of the People's Republic of China
GB/T21850—2008
Chemical products
Determination of spontaneous combustion of solids and liquids
Chemical products for indnstry use-Determination of spontaneous combustion of solids and liquids2008-05-12Promulgated
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of ChinaStandardization Administration of the People's Republic of China
Implementation on September 1, 2008
GB/T21850--2008
This standard is equivalent to NFT20-039:1985 Determination of spontaneous combustion of solids and liquids for chemical products" (French version), with editorial modifications made to the standard text format in accordance with GB/T1.1-2000. This standard was proposed by the National Technical Committee for Standardization of Hazardous Chemicals Management (SAC/TC251) and is incorporated into II. The responsible drafting unit of this standard is Tingsu Entry-Exit Inspection and Quarantine Bureau. The participating units of this standard are Jiangxi Entry-Exit Inspection and Quarantine Bureau. The main drafters of this standard are Zhou Feizhou, Zhan Chunrui, Li Jianjun, Kou Hai, Jiang Hongxing, Chen Xiaowei and Liu Junfeng. This standard is published for the first time.
1 Scope
Chemical products
Determination of spontaneous combustion of solids and liquids
This standard specifies the test method for spontaneous combustion of chemical products. GB/T 21850—2008
This standard is applicable to the determination of the spontaneous combustion of solid, liquid and powder chemical products after short-term contact with air at room temperature. 2
Terms and definitions
The following technical specifications and definitions apply to standards
senyustion
spontaneon
produce fire
Under normal conditionswwW.bzxz.Net
3 Principle
At room temperature, the
is in contact with air and
Reagents and materials
Silica or basic
Instruments and equipment
spontaneous substances.
Porcelain bottom with a diameter of about 100
|Working steps
6.1 Liquid sample: Check whether there is flame in the mouth (repeat
6.2 Powder solid sample
Result expression
Observe whether there is
, fill the silica bomb soil into the round bottom with a thickness of about
mm, and put 5 mL of the sample into the bottom III, and observe whether it changes from 1 in 5 min or 2 mL. m drop to a non-flammable surface and observe the sample during the drop (repeat 6 times).
The spontaneous combustion of the product is determined by the results obtained through at least 6 actual pulls. 8 Test report
The test report should include the following parts:
e) Confirmation of the sample (physical form, moisture, impurities, etc.): Basis of the test method;
Test results:
Details of special conditions that occurred during the test: Report of all operations that are not foreseen in the current standard or all operations that are arbitrary, GE/T 21850—2008
Fees Reference
Articles 82-905 of the Law amending Articles 77-771 of 21 October 1932 (see Official Journal L of 22 October 1982)
Parliament Directive 67/548E of 27 July 1967 (Official Journal L 196 of 16 August 1967, p. 1)
Parliament Directive 79/831 of 18 September 1979 (Official Journal of the European Union No. 1259 of 15 October 1979, p. 10)[4]
Council Directive 84/449 of 25 August 1984 (Official Journal of the European Union No. L 251 of 19 August 1984, p. 1)2
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