General rules for selection of packaging materials with volatile corrosion inhibitor
Some standard content:
National Standard of the People's Republic of China
General rules for selection of packaging materials with yolatile corrosion inhibitor
General rules fnr selection of packaging materials with yolatile corrosion inhibitor1Subject content and scope of application
This standard specifies the selection requirements, application and quality inspection of yolatile corrosion inhibitor packaging materials. CB/T 14188-93
This standard applies to the selection of yolatile corrosion inhibitors and yolatile corrosion inhibitor-treated yolatile corrosion inhibitor packaging materials when metal materials and their products are packaged for rust prevention according to the requirements of GB13384.GB4879.GJB145. 2 Reference standards
Pictorial marking for packaging, storage and transportation
GB 191
GB2828
GB2829
GB 4879
GB 10455
Counting sampling procedures and sampling tables for batch inspection (applicable to inspection of continuous batches)Counting sampling procedures and sampling tables for periodic inspection (applicable to inspection of stability of production process)Anti-rust packaging
Silica gel desiccant for packaging
GB12339
GB 13348
Inner packaging materials for anti-expansion
General technical conditions for packaging of electromechanical products
General rules for sealed packaging
GJB 145
GJB 611
QH1319
Aviation gas phase anti-rust paper
Gas phase anti-rust paper
JB 4051. 1
WJ 1630
Technical conditions for gas phase anti-rust paper
Nitrite-cyclohexylamine
HB5206
Test method for contact corrosion of packaging materials on metals 3 Selection requirements
3.1 Ordering
All gas phase anti-rust packaging materials ordered must be products that have passed the quality inspection. The user unit shall verify its gas phase corrosion inhibition performance. For packaging with an anti-rust period of more than two years, its gas phase corrosion inhibition performance after exposure or dynamic humidity and heat test must also be verified. Those that fail to meet the standards shall not be used for gas phase rust packaging of products. The ordering contract shall include the following provisions:. Type, model and standard of the product. b: Whether it is necessary to inspect the order samples, the inspection unit, the inspection items and the test methods. Are there any special requirements for packaging?
3.2 Storage and preservation of gas phase anti-rust packaging materials and their packaging products The sealed gas phase anti-rust packaging materials and their packaging products should be stored in a cool and dry warehouse. When used, open them and the coating surface should be exposed to the air for no more than 4 hours. If this kind of packaging is damaged or polluted by sunlight, wind, rain, acid, alkali, and salt substances, the gas phase corrosion inhibition performance should be re-inspected and it can only be used if it is qualified. Approved by the State Bureau of Technical Supervision on March 1, 1993 and implemented on August 1, 1993
3.2.1 Environmental conditionsbzxZ.net
3.2. 1. 1 Temperature
GB/T 14188-93
, gas phase anti-rust packaging materials and their packaging products cannot be stored in places below 365, but can be used in places below 0C. b. In warm areas, the VCI packaging materials and the products packaged therein should be well sealed to prevent the vapor corrosion inhibitor from evaporating, migrating and losing.
3.2.1.2 Relative humidity
The packaged VCI packaging materials and the products packaged therein are not allowed to be stored in an environment with a relative humidity greater than 85%. 3.2.1.3 Light
The packaged VCI packaging materials and the products packaged therein should be stored away from light. If it is unavoidable, they should be shielded with shading materials. 3.2.1.4 Airflow
In situations with strong airflow, the VCI packaging materials and the products packaged therein should not only be well sealed, but also be shielded externally. 3.2.1.5 Acids and their vapors
a. Metal cleaning agents of the hydrochloric acid type and any solvents containing sulfur cannot be used for cleaning before the VCI packaging materials are used for rust prevention.
b. Gas phase anti-rust packaging materials and the products packaged by them cannot be stored in industrial fumes containing hydrochloric acid, hydrogen sulfide, hydrogen sulfide, sulfur dioxide or other acid vapors.
3.2.2 Storage and storage packaging quality regulations
Gas phase anti-rust packaging materials cannot be used for anti-rust packaging of products if any of the following conditions exist: the packaging bag or container is shaved or otherwise damaged, resulting in the exposure of the gas phase anti-rust packaging materials: a.
No production inspection certificate:
Although there is a production inspection certificate, it fails the factory inspection; d.
The type and model are unknown or do not meet the use requirements, and the production date is more than one year away from use.
The above conditions are excepted if the gas phase corrosion inhibition performance test or dynamic humidity and heat test is still qualified. 3. 3 Restrictions on use
Unless otherwise specified and verified data, gas phase anti-rust packaging materials cannot be used for products that protect optical devices and highly explosive substances and propellants connected to them.
Assemblies of precision moving parts coated with preservatives or lubricants for protection, if they are packaged and stored with vapor phase rust-proof packaging materials, and if the product performance and technical requirements are affected, they cannot be used.
Vapor phase rust-proof packaging materials cannot be used to package food because they contain chemicals. 3.3.1 Restrictions on contact with non-ferrous metals
Vapor phase rust-proof packaging materials must be subjected to the contact corrosion test in Article 5.3.3 before they come into direct contact with non-ferrous metals other than aluminum and its alloys, and can only be used after they pass the test.
b. For zinc, zinc plate, cadmium, galvanneal, zinc-based alloy, magnesium-based alloy, lead-based alloy and other alloys (including solder) containing more than 30% zinc or more than 9% lead and parts, when these materials or they are treated or shielded by other methods, before they are packaged with vapor phase rust-proof packaging materials, they must be subjected to the adaptability test in Article 5.3.2 and pass the test before they can be used. 3.3.2 Restrictions on contact with non-metallic materials
Parts and assemblies containing non-metallic materials such as plastics, rubber, oil, and coatings can be packaged with VCI packaging materials after passing the adaptability test in accordance with Article 5.3.2.
3.3.3 Provisions for mixing different VCI packaging materials When different VCI packaging materials are mixed, they should be treated as a new VCI packaging material. When the VCI performance test is qualified, they can be used in the same packaging.
3.3.4 Cleaning and drying
GB/T14188—93
Before using VCI materials to package products, they should be carefully cleaned and dried if necessary. During the VCI packaging process, it is strictly forbidden to touch the products with bare hands. When the packaging cannot be completed by mechanized or semi-mechanized procedures, the best cleaning procedure is to use solvent gasoline or kerosene containing 5% to 10% replacement anti-rust oil or dehydration anti-rust agent to prevent hand sweat or residual moisture from causing rust hazards.
3.3.5 Combined use with lubricants
When VCI packaging materials are used in assemblies containing lubricants, a certificate of suitability test permitted by the technical conditions of the product specified in Article 5.3.2 should be obtained. Before VCI packaging materials are used for assembly packaging, excess grease on the assembly should be removed. If it is a binder or solid lubricant that is evenly dispersed and bonded to the substrate, it does not need to be removed. 4 Application of VCI packaging materials
4.1 Anti-rust packaging materials treated with vapor corrosion inhibitors VCI paper, VCI thin film and bags, tapes, envelopes, etc. made of them should generally wrap the parts. There should be no other materials between the parts and the VCI packaging materials. Solvent-diluted replacement anti-rust oil or dehydration anti-rust agent can be used for cleaning. The residual micro-oil film and protective passivation film after drying should be left. The side of the gas treated with the corrosion inhibitor should face the metal. The metal surface to be rusted should be within 300mm of the VCI packaging material. All packages should be sealed. When VCI packaging materials are used directly as packaging bags, the amount of air in the bag should be as small as possible, and the opening should be sealed. If the VCI packaging materials have other instructions for use, they can be used according to the instructions.
4.2 Powdered and crystalline vapor phase corrosion inhibitor materials
Powdered or crystalline (flakes, pills, etc.) vapor phase corrosion inhibitor materials composed of single or multiple compounds can be used in hanging bags or spraying methods to allow the corrosion inhibitor vapor to reach the surface of the product. The vapor phase corrosion inhibitor can also be sprayed directly into the container in the form of powder, spray, or atomization. After spraying, the package should be sealed immediately.
4.3 Layered or composite vapor phase corrosion inhibitor packaging materials When products are packaged with layered or composite vapor phase corrosion inhibitor materials, the vapor phase corrosion inhibitor should be placed in the inner layer, facing the metal. When materials treated with vapor phase corrosion inhibitors are used in graded board boxes (boxes) containing isolation boards, the materials buried in the vapor phase corrosion inhibitor should be mounted (lined) on the inner surface of the cardboard box (box). 4.4. Gas phase inhibitor materials for padding and buffering In order to prevent parts or packaging from being damaged, padding and buffering materials are used to line the protruding sharp corners and edges, and the padding should be tightly around the product. When using gas phase corrosion inhibitor treated padding and buffering materials, when there is an impact on contact with metal, aluminum foil or other appropriate shielding materials should be used to separate the product and the gas phase corrosion inhibitor materials. 4.5 Amount of gas phase corrosion inhibitor packaging materials
The amount of gas phase corrosion inhibitor packaging materials is generally equal to the exposed area of the packaged items. If the amount of gas phase corrosion inhibitor impregnated or coated on the gas phase corrosion inhibitor packaging material is large, or powdered, granulated gas phase corrosion inhibitor materials or other gas phase corrosion inhibitor materials adsorbed by porous carriers are used, the amount is calculated based on the effective content of the gas phase corrosion inhibitor in the material, and the amount of corrosion inhibitor per cubic meter of sealed container volume should be ≥35g. 4.6 Use of VCI Packaging Materials on Sealed Parts and Blind Hole Components For sealed parts such as cylinders, gear boxes, etc., VCI materials should be applied to their spaces and sealed immediately. For components with smaller open holes, when the hole depth is greater than 150mm, VCI packaging materials should be embedded in the holes, and the area to be protected should not be more than 300mm away from the VCI materials. The minimum amount of VCI packaging materials used to protect sealed parts and blind hole components should comply with the requirements of Article 4.5. If necessary, use a label or other form to indicate "Do not use before the vapor phase corrosion inhibitor is removed" on the component. 4.7 Desiccant
Generally, desiccant is not required in the packaging of vapor phase anti-rust packaging materials. However, for areas where the relative humidity of the packaging environment exceeds 70%, a silica gel desiccant containing GB10455\A type packaging can be appropriately placed to prevent metal corrosion during the induction period of the vapor phase anti-rust packaging materials. 4.8 Anti-rust effect
The anti-rust packaging effect and reliability of vapor phase anti-rust packaging materials are determined by the following conditions: a. The corrosion inhibition ability of the vapor phase anti-rust packaging material itself. Mainly depends on the vapor phase corrosion inhibition performance and the vapor phase corrosion inhibition performance after consumption. b. The degree of protection required by the product. Determined by the materials, structure, and precision of the product. The sealing condition of the core vapor phase anti-rust packaging.
4.9 Marking
GB/T14188--93
Use vapor phase anti-rust packaging In addition to the GH191 mark, the finished products packaged with materials may be marked with the words "gas phase anti-rust packaging". 4.10 Removal of vapor phase anti-rust packaging materials
For general products, the vapor phase anti-rust packaging materials can be removed. For precision moving parts, when there are powdery or crystalline deposits on the surface and they do not need to be stored any longer, they can be removed with alcohol or methanol. 5 Quality Inspection
5.1 Inspection Responsibilities
The manufacturer shall be responsible for the inspection requirements specified in this article. The user or purchaser has the right to re-inspect, but at least the vapor phase corrosion inhibition performance must be spot checked. For anti-rust packaging that is more than one year old, it is necessary to check the vapor phase corrosion inhibition performance after exposure or conduct a dynamic humidity and heat chamber test. It can only be used if it passes the test. 5.2 Inspection Classification
5.2.1 Order Sample Inspection
The order sample inspection shall consist of all the test items required by the standards or instructions of each vapor phase anti-rust packaging material, such as GJB611, QH1319, JB 4051.1, WJ1630, etc. The manufacturer must have complete testing means, test the mandatory items of the products before leaving the factory according to the specified standards, and issue a certificate of qualified inspection. When the ordering unit has objections, it can send representatives to participate in the verification together or separately: if there are still objections, after consultation between the two parties, entrust a third party to arbitrate.
5.2.1.1 Sampling of order samples
Sampling is carried out during the inspection of order samples, and the manufacturer shall provide a certificate that the sample meets the contract requirements. Sampling is carried out in accordance with GB2828, and the number of samples for special circumstances shall be in accordance with the contract. When the raw materials, formulas, process procedures and process equipment used by the manufacturer change and affect the quality or uniformity of the product, re-sampling verification is required. 5.2.2 Quality consistency inspection
After the order samples are inspected and qualified, under normal supply conditions, quality consistency inspection is required, which shall be implemented in accordance with relevant standards. 5.2.2. 1 Sampling
Quality and consistency test sampling shall be carried out in accordance with the provisions of GB2829. 5.3 Test methods
The test methods of various gas phase anti-rust packaging materials shall be carried out in accordance with the provisions of the material standards, such as gas phase corrosion inhibition performance test and dynamic contact humidity and heat test shall be carried out in accordance with Appendix C and Appendix D of QB1319. The gas phase corrosion inhibition performance, adaptability test and contact corrosion test after exposure are as follows: 5.3.1 Gas phase corrosion inhibition performance after exposure
a For gas phase anti-rust paper, gas phase anti-rust chain film and flat materials treated with gas phase corrosion inhibitor, follow Appendix C of QB1319 or Article 5.10 of GJR611
b For powdery and crystalline gas phase anti-rust materials, follow Article 2.7 of WJ1630; for other non-flat gas phase anti-rust materials such as oily and greasy films, follow Article 2.7 of WJ1630 or Appendix C of QB1319. 5.3.2 Adaptability test
Adaptability test is carried out in accordance with Appendix D of QB1319. If the metal materials in typical packaging exceed the provisions of Appendix D or there are other non-metallic materials, the adaptability test can refer to Appendix D of QB1319 or Article 5.9 of GJB611. 5.3.3 Contact corrosion performance test
When the gas buckle anti-rust packaging materials need to contact with metals other than those specified in Article 3.3.1, the contact corrosion performance test should be carried out. Gas phase anti-rust paper, gas phase anti-rust film, etc. should be carried out in accordance with HB5206. Powdered, crystalline, and grease-like gas phase corrosion inhibitor materials can refer to Article 2.8 of WJ1630.
Additional remarks:
This standard is proposed by China National Packaging Corporation. 14188-93
This standard is under the jurisdiction of the Science and Education Department of China National Packaging Corporation. This standard was drafted by the 621st Institute of the Ministry of Aviation, Wuhan Anti-Rust Paper Factory, Beijing Peace Protection Packaging Material Factory, and China National Machinery Import and Export Corporation.
The main drafters of this standard are Luo Xiangji, Xiao Huaibin, Hao Dingzhen, and Liu Jun. This standard refers to the US military standard MI1.-1-8574F "Application of Volatile Corrosion Inhibitors".1 Order sample inspection
Order sample inspection is composed of all the test items required in the standards or instructions of each white vapor phase rust-proof packaging material, such as GJB611, QH1319, JB 4051.1, WJ1630, etc. The manufacturer must have complete testing means, test the mandatory inspection items of the factory products according to the specified standards, and issue a certificate of inspection qualification. When the ordering unit has objections, it can send representatives to participate and conduct verification together or separately: if there are still objections, after consultation between the two parties, entrust a third party to arbitrate.
5.2.1.1 Order sample sampling
Sampling is performed during the order sample inspection, and the dust production plant shall provide a certificate that the sample meets the contract requirements. Sampling is carried out in accordance with GB2828, and the number of samples for special circumstances shall be in accordance with the contract. When the raw materials, formulas, process procedures and process equipment used by the manufacturer change and affect the product quality or uniformity, re-sampling verification is required. 5.2.2 Quality consistency inspection
After the ordered samples are inspected and qualified, under normal supply conditions, quality consistency inspection shall be carried out in accordance with relevant standards. 5.2.2. 1 Sampling
Quality consistency test sampling shall be carried out in accordance with the provisions of GB2829. 5.3 Test methods
The test methods of various gas phase rust prevention packaging materials shall be carried out in accordance with the provisions of the material standards, such as gas phase corrosion inhibition performance test and dynamic contact humidity and heat test shall be carried out in accordance with Appendix C and Appendix D of QB1319. The gas phase corrosion inhibition performance, adaptability test, and contact corrosion test after exposure are as follows: 5.3.1 Gas phase corrosion inhibition performance after exposure
a For gas phase rust-proof paper, gas phase rust-proof chain film, and flat materials treated with gas phase corrosion inhibitors, follow Appendix C of QB1319 or Article 5.10 of GJR611
b For powdery and crystalline gas phase rust-proof materials, follow Article 2.7 of WJ1630; for other non-flat gas phase rust-proof materials such as oily and grease-like films, refer to Article 2.7 of WJ1630 or Appendix C of QB1319. 5.3.2 Adaptability test
The adaptability test shall be conducted in accordance with Appendix D of QB1319. If the metal materials in the typical packaging exceed the provisions of Appendix D or there are other non-metallic materials, the adaptability test can refer to Appendix D of QB1319 or Article 5.9 of GJB611. 5.3.3 Contact corrosion performance test
When the gas buckle anti-rust packaging materials need to contact with metals other than those specified in Article 3.3.1, the contact corrosion performance test should be carried out. Gas phase anti-rust paper, gas phase anti-rust film, etc. should be tested according to HB5206. Powdered, crystalline, and grease-like gas phase corrosion inhibitor materials can refer to Article 2.8 of WJ1630.
Additional instructions:
This standard is proposed by China Packaging Corporation. 14188-93
This standard is under the jurisdiction of the Science and Education Department of China Packaging Corporation. This standard was drafted by the 621st Institute of the Ministry of Aviation, Wuhan Anti-Rust Paper Factory, Beijing Peace Protective Packaging Material Factory, and China National Machinery Import and Export Corporation.
The main drafters of this standard are Luo Xiangji, Xiao Huaibin, Hao Dingzhen, and Liu Jun. This standard refers to the US military standard MI1.-1-8574F "Application of Volatile Corrosion Inhibitors".1 Order sample inspection
Order sample inspection is composed of all the test items required in the standards or instructions of each white vapor phase rust-proof packaging material, such as GJB611, QH1319, JB 4051.1, WJ1630, etc. The manufacturer must have complete testing means, test the mandatory inspection items of the factory products according to the specified standards, and issue a certificate of inspection qualification. When the ordering unit has objections, it can send representatives to participate and conduct verification together or separately: if there are still objections, after consultation between the two parties, entrust a third party to arbitrate.
5.2.1.1 Order sample sampling
Sampling is performed during the order sample inspection, and the dust production plant shall provide a certificate that the sample meets the contract requirements. Sampling is carried out in accordance with GB2828, and the number of samples for special circumstances shall be in accordance with the contract. When the raw materials, formulas, process procedures and process equipment used by the manufacturer change and affect the product quality or uniformity, re-sampling verification is required. 5.2.2 Quality consistency inspection
After the ordered samples are inspected and qualified, under normal supply conditions, quality consistency inspection shall be carried out in accordance with relevant standards. 5.2.2. 1 Sampling
Quality consistency test sampling shall be carried out in accordance with the provisions of GB2829. 5.3 Test methods
The test methods of various gas phase rust prevention packaging materials shall be carried out in accordance with the provisions of the material standards, such as gas phase corrosion inhibition performance test and dynamic contact humidity and heat test shall be carried out in accordance with Appendix C and Appendix D of QB1319. The gas phase corrosion inhibition performance, adaptability test, and contact corrosion test after exposure are as follows: 5.3.1 Gas phase corrosion inhibition performance after exposure
a For gas phase rust-proof paper, gas phase rust-proof chain film, and flat materials treated with gas phase corrosion inhibitors, follow Appendix C of QB1319 or Article 5.10 of GJR611
b For powdery and crystalline gas phase rust-proof materials, follow Article 2.7 of WJ1630; for other non-flat gas phase rust-proof materials such as oily and grease-like films, refer to Article 2.7 of WJ1630 or Appendix C of QB1319. 5.3.2 Adaptability test
The adaptability test shall be conducted in accordance with Appendix D of QB1319. If the metal materials in the typical packaging exceed the provisions of Appendix D or there are other non-metallic materials, the adaptability test can refer to Appendix D of QB1319 or Article 5.9 of GJB611. 5.3.3 Contact corrosion performance test
When the gas buckle anti-rust packaging materials need to contact with metals other than those specified in Article 3.3.1, the contact corrosion performance test should be carried out. Gas phase anti-rust paper, gas phase anti-rust film, etc. should be tested according to HB5206. Powdered, crystalline, and grease-like gas phase corrosion inhibitor materials can refer to Article 2.8 of WJ1630.
Additional instructions:
This standard is proposed by China Packaging Corporation. 14188-93
This standard is under the jurisdiction of the Science and Education Department of China Packaging Corporation. This standard was drafted by the 621st Institute of the Ministry of Aviation, Wuhan Anti-Rust Paper Factory, Beijing Peace Protective Packaging Material Factory, and China National Machinery Import and Export Corporation.
The main drafters of this standard are Luo Xiangji, Xiao Huaibin, Hao Dingzhen, and Liu Jun. This standard refers to the US military standard MI1.-1-8574F "Application of Volatile Corrosion Inhibitors".
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