SN/T 0370.3-2012Rules for the inspection of packaging for export dangerous goods - Part 3: Use appraisal (English PDF)

3.1.8 The net weight of a single packaging item shall not exceed the weight specified by

"Model Regulations" and the "International dangerous regulations" of corresponding

transport mode.

3.1.9 Generally, dangerous liquid goods shall be contained below 98% of the container

volume. For the goods with high expansion coefficient, reserved volume of container shall

be determined according to expansion coefficient.

3.1.10 Dangerous goods shall not leak on the container surface, between external

container and inner container or inner storage vessel.

3.1.11 If liquid or inert gas is adopted to protect dangerous goods, the liquid or inert gas

shall be able to ensure the safety of dangerous goods.

3.1.12 Adsorption material shall not have dangerous chemical reaction with the packaged

goods; and it can adsorb and accommodate all the dangerous goods when the inner

container is fractured, so as to prevent packaged goods from leaking out of external

container.

3.1.13 Shockproof and cushion material shall not have dangerous chemical reaction with

the packaged goods and resulted in shockproof performance decrease. There shall be

sufficient filling material of cushion to avoid motion of inner container.

3.1.14 Packaging users shall preserve sample for the packaging container being used; the

preserve duration is at least 6 months.

3.2 Special requirements for transport of dangerous goods by air

3.2.1 For the packaging container used for filling liquid, including inner packaging, it shall

be able to withstand 95kPa and above inner pressure without leakage.

3.2.2 Installation of venting hole on packaging container to decrease inner pressure

produced by gas emission of packaged dangerous goods shall be approved by aviation

administration authority.

3.2.3 When combination packaging is used for packing dangerous goods, the seal of inner

container shall not be upside down. There shall have obvious marks indicating operation

direction on the external packaging.

3.2.4 For self-reaction material in item 4.1 and organic peroxide in item 5.2 of "Model

Regulations", the packaging shall meet requirements of class II and above; metal

container must not be used for packaging. Packaging with venting hole shall not be used

for organic peroxide in item 5.2.

3.2.5 For explosive peroxide, subsidiary risk label shall be labelled on its packaging item.

3.2.6 For peroxide with explosive subsidiary risk, the packaging shall meet requirements

consistent with the properties and actual use condition of the contained dangerous goods.

5.6 Inspect whether packaging form and packaging item appearance meet requirements

of 3.1.6 and 3.1.7.Inspect whether packaging samples preserved by users are consistent

with those actually used, and hand it over to user for preservation after adding inspection

and quarantine sealing marks.

5.7 Inspect whether net weight of packaging item for dangerous goods meet requirements

of 3.1.8.

5.8 Inspect whether packing volume of packaging item for liquid or solid dangerous goods

meets requirements of 3.1.9.

5.9 Inspect whether dangerous goods is leaked on container surface, between external

container and inner container or inner storage vessel.

5.10 Sample the liquid of dangerous goods to conduct analysis; use trace gas analyzer to

measure the protective inert gas content. Verify whether the protective liquid or inert gas is

able to effectively ensure the safety of dangerous goods according to corresponding

standards of different kind of dangerous goods.

5.11 Inspect whether there is chemical reaction between dangerous goods and those

materials in contact with it as packaging, absorbing, shockproof, and cushion materials;

and whether packaging accessories such as rope and line have chemical reaction to

affect normal use-performance.

5.12 Inspect whether drum / barrel and tank type packaging meets requirements of 3.3.1.

5.13 Inspect whether box-type packaging meets requirements of 3.3.2.

5.14 Inspect whether bag-type packaging meets requirements of 3.3.3.

5.15 Inspect whether combination packaging meets requirements of 3.3.4.

5.16 Inspect whether gas sprayer and gas container with maximum operation pressure

less than 100kPa, diameter less than or equal to 0.15m, and volume less than 0.025m3

meet requirements of SN/T 1027.

6.1 The user of dangerous goods packaging shall also ensure that dangerous goods

packaging being used meets specifications in this Part. Application to inspection and

quarantine authority for use appraisal can be carried out after qualified by self-inspection

according to this Part.

6.2 Use appraisal of dangerous goods packaging shall be carried out lot-by-lot according

to sampling lot; however, the maximum number of each sampling lot shall not exceed the

specification of 4.1.

6.3 Validity period of use appraisal shall be calculated from the filling date of dangerous

goods. The maximum validity period of the use appraisal for packaging item which is

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