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SN/T 1828.9-2019: Test method of classification for import and export dangerous goods - Part 9: Toxic substances
Status: Valid SN/T 1828.9: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 1828.9-2019 | English | 179 |
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Test method of classification for import and export dangerous goods - Part 9: Toxic substances
| Valid |
SN/T 1828.9-2019
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| SN/T 1828.9-2013 | English | 319 |
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Test method of classification for import and export dangerous goods. Part 9: Toxic substances
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SN/T 1828.9-2013
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| SN/T 1828.9-2006 | English | 279 |
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Part 9 of the import and export of dangerous goods classification experimental methods: toxic substances
| Obsolete |
SN/T 1828.9-2006
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PDF similar to SN/T 1828.9-2019
Basic data | Standard ID | SN/T 1828.9-2019 (SN/T1828.9-2019) | | Description (Translated English) | Test method of classification for import and export dangerous goods - Part 9: Toxic substances | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | A80 | | Word Count Estimation | 8,849 | | Date of Issue | 2019-10-25 | | Date of Implementation | 2020-05-01 | | Older Standard (superseded by this standard) | SN/T 1828.9-2013 | | Regulation (derived from) | General Administration of Customs Announcement No. 166 of 2019 | | Issuing agency(ies) | General Administration of Customs | SN/T 1828.9-2019: Test method of classification for import and export dangerous goods - Part 9: Toxic substances
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Too large, can be divided into 2 to 3 doses within 24h, but combined as a daily dose calculation.
4.1.4 poisoning procedures
Oral exposure was performed sequentially at a fixed dose interval (5mg/kg, 50mg/kg, 300mg/kg,.2000mg/kg). Poisoning procedure
See GB/T 21804.
4.2 Acute transdermal toxicity test
4.2.1 Test samples
The solid test substance is mixed with an appropriate amount of water or a non-toxic and non-irritating excipient to ensure good contact between the test sample and the skin. Such as test samples
It is liquid and does not require dilution.
4.2.2 Experimental animals
Healthy adult rats, rabbits or guinea pigs, 8 to 12 weeks of age. The weight difference should be within ± 20% of the average weight of the experimental animals.
After the laboratory, there should be 2d to 5d to adapt to the environment.
4.2.3 poisoning
24h before the experiment, the hair on the back of the animal was cut or shaved, and the hair removal area was at least 10% of the surface area of the animal. When exposed to poison,
Apply evenly to the depilation area and fix it with porous gauze and non-stimulating tape. The exposure time is 24h.
4.2.4 poisoning procedures
Transdermal exposure was performed sequentially at a fixed dose interval (5 mg/kg,.200 mg/kg, 1000 mg/kg,.2000 mg/kg). Poisoning course
For the procedure, refer to GB/T 2783.
SN/T 182.8-2019
4.3 Acute inhalation toxicity test
4.3.1 Samples to be tested
4.3.1.1 If at least 10% of the total mass of solid matter may be dust in the respirable range, that is, the aerodynamic diameter of the powder is ≤
10μm;
4.3.1.2 Liquid substances may be tested if they may generate fumes when the transport sealing device leaks;
4.3.1.3 Regardless of whether it is a solid substance or a liquid substance, more than 90% (by mass) of the sample prepared for inhalation toxicity test shall be within
Inhalable range specified in 4.3.1.1 and 4.3.1.2.
4.3.2 Experimental animals
The commonly used experimental animals are rats and mice, and the commonly used weight range is 180g to 240g for rats, and 18g to 25g for mice. The weight difference is
It should be within ± 20% of the average weight of the experimental animals. After the animals enter the laboratory, they should adapt to the environment for 2 to 5 days.
4.3.3 poisoning
Both head/nose and systemic exposure can be used. The duration of exposure is 4h.
4.3.4 poisoning procedures
For the dose and procedure, refer to GB/T 27824.
4.3.5 Inhalation toxicity limit test
4.3.5.1 Limited test 1
The sample of the liquid mixture is changed into vapor and diluted with air to create a test gas ring with a mixture vapor concentration of 1000 mL/m3.
territory. Ten experimental animals (male and female) were placed in the test gas environment for 1 h, and then observed for 14 days. As in the observation period of 14d
If more than 5 experimental animals die, the LC50 value of the mixture can be estimated to be less than 1,000 mL/m3.
4.3.5.2 Limited test 2
Dilute the vapor sample in equilibrium with the liquid mixture at 20 ° C with 9 times the same volume of air to form a test gas ring
territory. Ten experimental animals (male and female) were placed in the test gas environment for 1 h, and then observed for 14 days. As in the observation period of 14d
If more than 5 experimental animals die, it can be estimated that the volatility (R) of the mixture is equal to or greater than 10 times the LC50 value of the mixture.
4.3.5.3 Limited test 3
The sample of the liquid mixture is changed into vapor and diluted with air to create a test gas ring with a mixture vapor concentration of 3000 mL/m3.
territory. Ten experimental animals (male and female) were placed in the test gas environment for 1 h, and then observed for 14 days. As in the observation period of 14d
If more than 5 experimental animals die, the LC50 value of the mixture can be assumed to be equal to or lower than 3000 mL/m3.
4.3.5.4 Limited test 4
Create a test gas environment with a vapor sample that is in equilibrium with the liquid mixture at 20 ° C. 10 experimental animals
(Male and female) are placed in the test gas environment for 1 h, and then observed for 14 days. If more than 5 experimental animals die during the 14d observation period,
It can be assumed that the volatility of the mixture is equal to or greater than the LC50 value of the mixture.
SN/T 182.8-2019
4.3.5.5 Limited test 5
The sample of the liquid mixture was changed into steam and diluted with air to create a test gas ring with a mixture vapor concentration of 5000 mL/m3.
territory. Ten experimental animals (male and female) were placed in the test gas environment for 1 h, and then observed for 14 days. As in the observation period of 14d
If more than 5 experimental animals die, the LC50 value of the mixture can be presumed to be equal to or lower than 5000 mL/m3.
4.3.5.6 Limited test 6
Measure the vapor pressure of the liquid mixture. If the vapor concentration is 1000 mL/m3 or more, the volatility of the mixture can be estimated
The degree is equal to or greater than one-fifth of the LC50 value of the mixture.
5 category determination
5.1 Classification of packaging grades for toxic pure substances
5.1.1 According to the results of the acute toxicity tests in 4.1, 4.2 and 4.3 of this part, the packaging categories of toxic substances are shown in Table 1.
Table 1 Acute toxicity test results and packaging types
Packing category Acute oral toxicity test LD50/(mg/kg)
Acute percutaneous toxicity test
LD50/(mg/kg)
Acute inhalation toxicity test
LC50/(mg/L)
Ⅰ ≤5 ≤50 ≤0.2
Ⅱ ＞ 5 and ≤50 ＞ 50 and ≤200 ＞ 0.2 and ≤2.0
Ⅲa ＞ 50 and ≤300 ＞.200 and ≤1000 ＞ 2 and ≤4
Note. The result of a toxicity test is equivalent to a catalyzed gaseous substance in a Class III packaging and should be classified in a Class II packaging.
It meets the standard of Class 8 corrosive substances, and it is finely cut, such as dust and smoke toxicity (LC50). It belongs to Class I packaging.
If it is in Class I or II packaging, the substance is classified in Class 6.1, otherwise it is classified in Class 8.
5.1.2 The inhaled dust and smoke toxicity standards in Table 1 are based on 1h of LC50 data. If only 4h of data is available,
Multiply the data by 2 and replace the above classification criteria with a product, and LC50 (4h) × 2 equals LC50 (1h).
5.1.3 Liquids with toxic vapors should be classified into the following packaging categories, where "V" is the saturated vapor concentration at 20 ° C and standard atmospheric pressure.
Degrees, expressed in milliliters per cubic meter of air.
a) Type I packaging. if V≥10LC50 and LC50≤1000mL/m3;
b) Type II packaging. if V≥LC50 and LC50≤3000mL/m3, and it does not meet the standards of typeⅠ packaging;
c) Type III packaging. if V≥1/5 LC50 and LC50≤ 5000mL/m3, and it does not meet the standards of type I packaging or type II packaging.
5.2 Assignment of the packaging category of mixtures
5.2.1 Packaging category of liquid mixtures with inhalation toxicity
5.2.1.1 When the LC50 value of each of the toxic substances that make up the mixture is known, the packaging category shall be in accordance with
The Model Book Regulations are delineated in 2.6.2.2.2.4.7.
5.2.1.2 When the LC50 value of the toxic substances that make up the mixture is unknown, see Table 2 for the classification of the packaging category.
SN/T 182.8-2019
Table 2 Packing classification of mixtures with unknown LC50 value
Packing category hazard level test results
Ⅰ Limit test with high danger 1. LC50≤1000mL/m
3;
Limit test 2. R≥10LC50
Ⅱ Limit test with medium risk 3. LC50 ≤ 3000mL/m
3;
Limit test 4. R≥LC50
Ⅲ Limit test with mild danger 5. LC50 ≤ 5000mL/m
3;
Limit test 6. R≥1/5LC50
5.2.2 Assignment of packaging category for oral and transdermal acute toxicity mixtures
Refer to the Regulations on Recommendations for the Transport of Dangerous Goods for the classification of packaging groups for oral and transdermal acute toxicity
2.6.2.2.3 in the Template.
SN/T 182.8-2019
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