Some standard content:
ICS 55. 040
National Standard of the People's Republic of China
GB/T19532—2004
Packaging material
Volatile corrosion inhibiting plastic film
Packaging material-Volatile corrosion inhibiting film2004-06-07 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2004-12-01 Implementation
GB/T19532—2004
Volatile corrosion inhibiting plastic film is made of polyolefin resin as base material and volatile corrosion inhibitor---.Volatile corrosion inhibitor (hereinafter referred to as VCI) through certain process methods. This standard is formulated by modifying the US military specification MIL-PRF-22019D "Volatile corrosion inhibitor treated flexible and weldable transparent barrier material". However, according to the specific conditions of my country and the actual requirements of the industrial sector, and considering its adaptability and operability, some parameters of the US military specifications have been modified, and the differences are as follows:
In the gas phase corrosion inhibition test after consumption, the consumption conditions of the sample are changed from 60℃, 12d to: 60℃, 24h, 48h. 72h, 120h and 288h. Five levels can be selected. The consumption instrument of the sample is changed from a special consumption device to a general electric heating blast thermostat.
-Gas phase corrosion inhibition (VIA) test and VIA test indicators after consumption are changed from no corrosion and pitting to no corrosion, the number of pitting is ≤5, and the size of the pit should be ≤0.5mm.
Appendix A of this standard is a normative appendix.
This standard is proposed by the National Packaging Standardization Technical Committee and is under the jurisdiction of the drafting units of this standard: the Packaging Office of the Chinese People's Liberation Army, Shenyang Anti-Rust Packaging Materials Co., Ltd., Mechanical Science Research Institute, and Metal Protection Technology Engineering Research Center of Northeastern University. The main drafters of this standard are Guo Baohua, Ma Hongliang, Bai Fang, Liu Qinglin, Huang Bei, An Chengqiang. KAONiKAa
1 Scope
Vapor phase anti-rust plastic film
Packaging materials
GB/T 19532—2004
This standard specifies the classification, technical requirements, test methods, inspection rules, labeling, packaging, transportation and storage of vapor phase anti-rust plastic film (hereinafter referred to as VCIF).
This standard is applicable to the production, testing and use of vapor phase anti-rust plastic film. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all dated references, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties to the agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated references, the latest versions are applicable to this standard. GB/T191 Packaging storage and transportation pictorial mark (VISO780: 1997) GB/T678--2002 Chemical reagent ethanol (anhydrous alcohol) (ISO6353-2: 1983, VEQ) GH/T679-2002 Chemical reagent ethanol (95%) GB/T677-1994 Chemical reagent glycerol (ne9ISO6353-3: 1987) GB/T699--1999 High-quality carbon structural steel
GB/T2423.4-1993 Basic environmental test procedures for electrical and electronic products Test Dh; cyclic damp heat test Method (eqvIEC68-2-30:1980)
GB/T2828.[-2003 Sampling inspection procedure for attributes Part 1: Sampling plan for batch inspection based on acceptance quality limit (AQI.)
GB/T4456-1996 Polyethylene blown film for packaging GR/T6672 Determination of thickness of plastic film and sheet Mechanical measurement method (GB/T6672--2007, ltJS()45931993) GB/T6673 Determination of length and width of plastic film and sheet (GB/T6673-2001, idtISO4592:1992)GR/T8809-1988Test method for pendulum impact of plastic filmGR/T11999-1989Test method for tear resistance of plastic film and sheetingElemendorff method (e9V1S06383-2:1983)GB/T12339-1990Protective inner packaging materialsGR/T16265-1996Test method for packaging materialsCompatibilityGB/T16265:1996Test method for packaging materialsContact corrosionGB/T16267-1996Test method for packaging materialsGas phase corrosion inhibitionGJB2 726--1996 Specification for opaque packaging materials treated with vapor phase rust inhibitors GJB27481996 Specification for flexible sealing transparent insulation materials treated with vapor phase etchants GJB21931995 General specification for heat-sealable flexible oil-resistant and moisture-proof barrier materials JB/T6067-1992 Technical conditions for vapor phase rust-proof plastic films QB1319-1091 Vapor phase fat rust paper SH0004-1990 Solvent oil for rubber industry GB/T19532-2004 3 Classification VCIF is classified according to use, shape and structure, see Table 1. Table 1 Classification By use By structure Multi-metal refers to steel, pot, yellow broad and aluminum. 4 Requirements
4.1 Appearance
Steel G
Roll]
Classification and code
Multi-metal Yu "T
Flake P
VCIF surface should be smooth and clean, without sand particles, oil spots, VCIF should not have perforations, bubbles, tears, scratches. 4.2 Specifications
4. 2. 1 Thickness
Bag D
VCIF thickness range is 0.05mm ~ 0.15mm. Requirement for thinner or thicker VCIF, by the supply and demand parties separately. The average thickness deviation shall comply with the requirements of GB/T4456-1996 Table 3 qualified product grade. 4.2.2 Roll YCIF
The allowable deviation of the folding width shall comply with GB/T 4456-1996 Table 2 Qualified product grade regulations The number of sections per roll and the length of each section of roll VCF shall comply with the qualified product grade regulations in Table 4 of GB/T4456-1996. The broken ends shall be marked.
The roll VCIF shall be firmly wound on the core, and the core diameter shall be (76±3) mm. The core length is the roll width + 10mm. The core shall be made of hard material, and the core shall not bend when the roll is lifted. The roll VCIF shall be prevented from loosening
4.2.3 Sheet VCIF
When the purchaser requires the supply of sheet VCIF, its length and width shall be specified, and its dimensional deviation shall comply with the qualified product grade regulations in Table 2 of GB/T4456-1996.
Sheet VCIF shall be neatly stacked to prevent wrinkling. 4.2.4 Bag-shaped VCIF
When the purchaser requires the supply of bag-shaped VCIF, it should be specified whether it is a two-dimensional (length × width) type or a three-dimensional (length × width × depth) type and its specifications and dimensions. The size difference is ≤ ±2.0%.
4.2.5 Others
VCIF of other shapes shall be agreed upon by the supply and demand parties. 4. 3 Anti-rust performance
The anti-rust performance of VCIF shall comply with the requirements of Table 2. KAONKAca
Gas phase retarding ability (VIA)
VIA after consumption
Gas phase anti-rust screening test
Contact corrosion
Compatibility with steel
Alternating damp heat test
Long-term protection
Degradation 2VCLF Anti-rust performance requirements
GE/T19532—2004
Multi-metal
The polished surface of the steel sheet has no magic corrosion and erosion. The number of corrosion points is ≤5, and the size of the single point is ≤0.5mm? The polished surface of the steel sheet has no dirt corrosion and erosion. The number of corrosion points is more than 5, and the size of the corrosion point is less than 0.5mm. 7 cycles are qualified
No magic corrosion, pitting, no corrosion
Steel 9 research period
Key plate has no rust
Steel, brass 7 cycles are qualified
Steel, pot has no corrosion, pitting, erosion
No pitting, mixed corrosion and severe discoloration
Steel cycle combination
Brass 7 cycles are qualified
General test pieces use steel, brass and aluminum. For nonferrous metals and coatings other than brass and aluminum, the tests can be carried out according to the items specified in Table 2, and the technical indicators shall be agreed upon by the supply and demand parties.
4.4 Physical properties
The physical properties of VCIF shall comply with the requirements of Table 3
Table 3 Physical properties requirements of VCIF
Transparency
Weld strength
One-year storage stability
a) Handover state
b) (65±2)℃ aging for 12d
a) Handover state, weld separation length at room temperature h) Weld separation length after aging for 12d at (70±2)℃ Water resistance of weld and material
Penetration strength
Tear strength/mN
Low temperature flexibility
Oil resistance
Anti-adhesion
Marking Water resistance
a) VIA test
b) Weld strength separation length
Text is clear and easy to read
Text is clear and easy to read
Water-resistant and leak-proof
No delamination, cracking or tearing
No mixing, expansion, delamination, embrittlement
No adhesion, separation or cracking
The logo should be clear and easy to read
The polished surface of the steel sheet is free of corrosion and erosion. The number of points is ≤5, and the size of the corrosion point is ≤0. 5mm.50%
GB/T 19532—2004
4.5 Logo
4.5. 1 Logo content requirements
When the order or the order has requirements for the logo, it shall comply with the provisions of GJB2748. Special circumstances shall be agreed upon by the supply and demand parties. 4.5.2 Identification card
When the contract or order requires, each roll or piece of VCIF shall be accompanied by an identification card, which shall be marked with the following identification: Product name, classification and code:
4.5.3 Form and code of identification card
VCIF, the product identification card can be represented by the form and code shown in Figure 1. vCIF
Product shape code: J, P, D
-Product structure code; I, II, Class
Product thickness: μm
Product classification code: G, T
Vapor phase anti-rust plastic film
Figure 1 Form and code of VCIF product identification card
For example: the identification card is: VCIFT-100ID means: vapor phase anti-rust plastic film, for multi-metal, 100um thick, single layer, bag-shaped. 5 Inspection method
5.1 Sampling and pretreatment
5.1.1 Sampling method
When sampling from roll products, remove the outer two layers and cut a sample of about 2m2, half of which is reserved for use. Seal the sample and package it. When sampling from sheet or bag products, cut a sample of about 2m or equivalent to 2m (bag products) from the fourth sheet below the top of the packaged product, of which: · half is reserved for use. Seal the sample and package it. 5. 1. 2 Pretreatment
Keep the obtained sample in a sealed packaging state and place it in a dry test environment for at least 4 hours before testing. 5.2 Appearance and color inspection
Self-test under natural light.
5. 3 Thickness
Perform in accordance with the provisions of GB/T6672.
5. 4 Length and width
Perform in accordance with the provisions of GB/T6G73.
5.5 Vapor corrosion inhibition ability (VA) test
Perform according to Appendix A
-TKANIKAca
5. 6 VIA test after consumption
Perform according to Appendix A.
5.7 Vapor phase rust prevention screening test
Perform according to the provisions of Appendix A of QH1319-1991. 5. 8 Contact corrosion
GH/T 19532---2004
Perform according to the provisions of GB/T 16266: The material of the test piece used is determined according to the metal material required for the test. 5. 9 Compatibility with copper
Perform according to the provisions of GB/T16265.
5.10 Cyclic damp heat test
Perform according to Chapter 5 of GB/T 2423.4-1993. The sample membrane should be welded or sealed. 5.11 Long-term protection
Perform according to 4.7.8 of GJB 2726-1996. 5.12 Transparency
Perform according to 4.6.13 of 1996
Perform according to GJB 2748
5.13 Weld strength
Perform according to 4.6.7 of GJB27481996. 5.14 Water resistance of weld and materials
Perform according to the test method of the first B-grade material in Appendix E of GB/T 12339-1990. 5.15 Acid penetration strength
According to the provisions of GB/T8809, the punch diameter is 3mm. 5.16 Tear strength
According to the provisions of GB/T11999.
5.17 Low temperature flexibility
According to the test method of GB/T 12339-1990 Appendix C Class B materials. 5.18 Oil resistance
According to 5.9 of JB/T 60671992. 5.19 Anti-adhesion
According to the provisions of GB/T 123391990 Appendix F Class B. 5.20 Water resistance of marking
According to the provisions of GJB2493-1995 Appendix A. 5.21-year storage stability
According to 4.6.16 of GJB 2748-1996. 6 Inspection and testing
6.1 Inspection classification
Product inspection is divided into two categories:
a) identification inspection (or type test); b) factory inspection.
6.2 Verification inspection
Identification inspection items are listed in Chapter 4. Identification inspection is required in the following cases: When new products are put into production for identification:
When there are major changes in raw materials, processes, and formulas When production is resumed after being suspended for half a year for some reason; GB/T 19532--2004
When the factory inspection results are significantly different from the previous identification inspection results: When the national quality supervision agency makes a request. 6.3 Factory Inspection
The factory inspection items are the gas phase corrosion inhibition capacity in 4.1, 4.2, 4.3 and the contents listed in 4, 5.3. 6.4 Sampling
Product inspection samples are drawn according to the secondary normal sampling plan specified in B/T 2828.1, see Table 4. One delivery is considered as a batch. The quantity of each batch should not exceed the usage of half a year.
6.5 Judgment Rules
6.5.1 Judgment of Qualified Items
The product is judged to be qualified if the test results of the sample units meet the requirements of Table 4 for the inspection of various indicators. If there is one unqualified item, double sampling should be taken from the original batch to re-inspect the unqualified item. If the re-inspection result is qualified, the item is judged to be qualified. 4 Sampling and judgment rules
Sampling method
Normal inspection-: Secondary sampling inspection level S-3 Batch (pieces, rolls)
16·~50
51~·150
Sample size
6.5.2 Judgment of qualified batches
Class B non-qualified products
AQE--4. 0
The sampling plan and batch quality judgment shall be in accordance with the provisions of Table 4. 7 Packaging
7.1 Protective packaging
It is divided into precision packaging (Grade A) and general packaging (Grade B). 7.1,1 Precision packaging
C type non-conforming products
Non-conforming classification
1 type will not be qualified
Gas phase corrosion inhibition energy
Strength test
C type non-conforming
Except for type B
Other inspection items
Rolled materials, sheets and formed bags are first wrapped and sealed with polyethylene film (thickness not less than 100um) packaging bags. Then use an outer packaging with a certain strength and thickness
7.1.2 General packaging
Rolled materials, sheets and formed bags are first wrapped and sealed with polyethylene film (thickness not less than 80um) packaging bags. Then use an outer packaging with a certain strength and thickness.
7.2 Packing
7.2. 1A-level
VCIFs that have been protectively packaged in accordance with 7.1.1 should be packed in outer packaging boxes with sufficient strength and appropriate size, and be properly waterproofed.
7.2.2 B-level
VCIFs that have been protectively packaged in accordance with 7.1.2 can be shipped directly if the user requires that they not be packaged. If packaging is required, they should be packed in appropriate outer packaging boxes and be waterproofed. TKAONiKAca
7.3 Packing documents
The packing documents shall include: product instructions, quality certificate and other documents required by the purchaser. The product instructions shall at least include the following contents: VCIF should be well sealed when used;
The rolled VCIF should be placed upright
Do not wipe your eyes when operating VCIF;
Wash your hands after operation.
7.4 Marking
GB/T19532—2004
The name and address of the manufacturer, product name, trademark, product variety and code, manufacturing date and production batch number (or serial number) shall be marked on the packaging box. The markings on the packaging boxes should comply with the provisions of GB/T191, and use the "Rain-averse" and "Sun-averse" signs. 8 Transportation, storage and other
8. 1 Transportation
VCIF should be transported by clean, canopied transport. It should be protected from rain, snow and direct sunlight. It should be handled with care to avoid damaging the protective packaging layer.
8.2 Storage
VCIF should be stored without damaging the original protective packaging layer and should be kept sealed. It should be stored in a dry and clean warehouse. Avoid placing it directly on the ground and direct sunlight. It cannot be stored together with chemicals, and should be at least 1m away from heat sources and at least 0.1m away from the ground. VCIF should be used as soon as it is connected. If it cannot be used up at one time, it should be resealed and stored. GB/T19532--2004
A. 1 Apparatus, instruments and materials Appendix A (Normative Appendix) Test method for gas phase corrosion inhibition ability (VIA) Electric heating blast thermostat (temperature ~ 200) ℃ ± 2 ℃; wide-mouth bottle glass, flat bottom, 1000 ㎡L, rubber: 13= and 9#: Drill pipe: outer diameter 16mmXl. 5 mmX110mm: Sandpaper: Aluminum fluoride or diamond type, 240#, 400#, 600)= and 800N; Dryer: Glass, diameter (200~300) mm: Silica gel: fine pore type;
Electroplating tweezers:
Min-shaped needle:
Hair dryer:
Jie porcelain cup:
Absorbent gauze.
A.2 Reagents bzxz.net
Anhydrous Z. Alcohol. Meet the requirements of GB/T678:
95% Z. Alcohol. Meet the requirements of (GB/T679:
Triol (glycerol): Meet the requirements of GB/F687: Solvent oil, meet the requirements of SH0004.
A. 3 Concave test piece
10# steel in accordance with GB/T69, diameter 16mm, height 13mm, with a hole with diameter 1tmm, 10mm and flat bottom in the center of one end, and the other end surface is first processed by a grinder to a roughness of Ra0.8μm. Before use, grind the surface with coarse and fine sandpaper in turn to a roughness of R0.4~0.6μm. The polished surface should not have concave, scratches and rust. Clamp with a forge, and clean with solvent oil (cleaned twice), 95% ethanol through gauze , A water and ethanol, wipe once, blow dry with hot air, cool in a desiccator and set aside. The storage time should not exceed 24h, otherwise it should be re-polished and cleaned.
The surface of the cleaned test piece should be avoided from contact and contamination by bare hands. A,4 Test piece
The extraction and pretreatment of the test piece shall comply with the provisions of 5.1 of this standard. Care should be taken to prevent the surface of the test piece from being contaminated. -KAONKAca
A.5 Test device (see Figure A,1)
Lactic acid tube [8 m
Glass section 8
Insulation hose D16 mm
Formed test piece
eh Rubber explosion 4
Aluminum tube r6mux1.5 mmx11c tun
Rubber 13#
Wide-mouth bottle
Glycerol water-soluble carboxylic acid
Figure A, VIA test body assembly diagram
GB/T 19532—2004
Drill through holes with diameters of 15 mm and 8 mm at appropriate locations between the ends of the 13# rubber plug, and drill a through hole with a diameter of 15 mm in the center of the 9# plug.
h) Put the aluminum tube into the 13# and 9# rubber plugs, and the aluminum tube is exposed beyond 2 mm from the end surface of the 9# plug. ) Place the prepared test piece on a clean paper, press the shaped surface into the 9# plug, and the exposed part of the test surface should not exceed L. Then put this plug into the aluminum substitute (13# plug small end: - side), and make the lead pipe contact with the shaped test piece. Insert the 9# plug of the shaped test piece and the exposed aluminum tube between the 13# large plug, and put a rubber hose with a thickness of not less than 2 mm and a suitable length. mm hole, insert GB/T19532-2004
a glass tube with a diameter of 8tuim, with the exposed length of the upper end surface of about 30mm, then put on a latex tube with a length of 30mm and an inner diameter of 7mm, and use an elastic clamp to tie the mouth of the latex tube,
d) Cut two samples (150mm×50mm), and use thumbtacks to pin them to the symmetrical sides of the rubber plug containing the test piece, with the drug surface facing the test piece.
The lower end of the sample is folded and clamped with a paper clip to keep it in a vertical state and avoid being exposed to the solution at the bottom of the wide-mouth bottle. A.6 Blank test body
The test body only contains test pieces and no gas phase rust inhibitor packaging materials or neutral packaging materials without gas phase rust inhibitor. A.7 Test procedure
A,7.F Gas phase corrosion inhibition ability (VIA ) Test
The test body is installed on a wide-mouth bottle. Then the wide-mouth bottle is placed in an electric blast thermostat that has been preheated to 40±1℃. After 3 hours, take it out. After cooling for 10 minutes, loosen the elastic clamp, and add 50mL of glycerol distilled filling water (its density in an environment of 20℃±1℃ should be 1.078/mL±0.0004/mI) into the wide-mouth bottle through a latex tube (which can be equipped with a small funnel). Then clamp the hose and place the bottle in a drying oven. After 21 hours, take it out and quickly fill the aluminum tube with 19℃+1℃ water. Put it back into the thermostat, take it out after 3 hours, pour out the water in the aluminum tube, and observe whether the surface of the test piece is rusted. If necessary, gently wash the surface with absorbent cotton dipped in anhydrous ethanol and observe again. Each group of test bodies is used for retesting, and one group is empty for comparison. A, 7. 2 VIA after accelerated consumption Test A.7.2.1 Accelerated consumption test of the sample
Cut the sample into 200mm×400mm and take two pieces, and weld the four edges. (For double-layer and multi-layer structure films, the volatile side of VCIF should face inwards) Clamp the long side and hang it vertically in an oven at 60±2℃ for a certain time (selected in Team A, 7.2.2). After taking it out, cool it to the VIA test environment temperature:
A.7.2.2 Accelerated consumption time of the sample
is divided into 24h, 48h.72 h.120h and 288h. Each production unit can choose. A.7.2.3 IA test after accelerated consumption
The test procedure shall be carried out in accordance with A.7.1.
A.8 Result evaluation
-The blank test piece has no rust, and the test is repeated;-The blank test piece is concavely rusted. If one or two of the three test pieces do not meet the requirements of Table 2 of this standard, the test should be repeated.-If all three test pieces do not meet the requirements of Table 2 or one piece still does not meet the requirements of Table 2 after the retest, the item is judged to be unqualified. KANiKAcaSandpaper: Aluminum fluoride or diamond type, 240#, 400#, 600)= and 800N; Dryer: Glass, diameter (200~300) mm: Silica gel: fine pore type;
Electroplating tweezers:
Min-shaped needle:
Hair dryer:
Jie porcelain cup:
Absorbent gauze.
A.2 Reagents
Anhydrous Z. Alcohol. Meet the requirements of GB/T678:
95% Z. Alcohol. Meet the requirements of (GB/T679:
Triol (glycerol): Meet the requirements of GB/F687: Solvent oil, meet the requirements of SH0004.
A. 3 Concave test piece
10# steel in accordance with GB/T69, diameter 16mm, height 13mm, with a hole with diameter 1tmm, 10mm and flat bottom in the center of one end, and the other end surface is first processed by a grinder to a roughness of Ra0.8μm. Before use, grind the surface with coarse and fine sandpaper in turn to a roughness of R0.4~0.6μm. The polished surface should not have concave, scratches and rust. Clamp with a forge, and clean with solvent oil (cleaned twice), 95% ethanol through gauze , A water and ethanol, wipe once, blow dry with hot air, cool in a desiccator and set aside. The storage time should not exceed 24h, otherwise it should be re-polished and cleaned.
The surface of the cleaned test piece should be avoided from contact and contamination by bare hands. A,4 Test piece
The extraction and pretreatment of the test piece shall comply with the provisions of 5.1 of this standard. Care should be taken to prevent the surface of the test piece from being contaminated. -KAONKAca
A.5 Test device (see Figure A,1)
Lactic acid tube [8 m
Glass section 8
Insulation hose D16 mm
Formed test piece
eh Rubber explosion 4
Aluminum tube r6mux1.5 mmx11c tun
Rubber 13#
Wide-mouth bottle
Glycerol water-soluble carboxylic acid
Figure A, VIA test body assembly diagram
GB/T 19532—2004
Drill through holes with diameters of 15 mm and 8 mm at appropriate locations between the ends of the 13# rubber plug, and drill a through hole with a diameter of 15 mm in the center of the 9# plug.
h) Put the aluminum tube into the 13# and 9# rubber plugs, and the aluminum tube is exposed beyond 2 mm from the end surface of the 9# plug. ) Place the prepared test piece on a clean paper, press the shaped surface into the 9# plug, and the exposed part of the test surface should not exceed L. Then put this plug into the aluminum substitute (13# plug small end: - side), and make the lead pipe contact with the shaped test piece. Insert the 9# plug of the shaped test piece and the exposed aluminum tube between the 13# large plug, and put a rubber hose with a thickness of not less than 2 mm and a suitable length. mm hole, insert GB/T19532-2004
a glass tube with a diameter of 8tuim, with the exposed length of the upper end surface of about 30mm, then put on a latex tube with a length of 30mm and an inner diameter of 7mm, and use an elastic clamp to tie the mouth of the latex tube,
d) Cut two samples (150mm×50mm), and use thumbtacks to pin them to the symmetrical sides of the rubber plug containing the test piece, with the drug surface facing the test piece.
The lower end of the sample is folded and clamped with a paper clip to keep it in a vertical state and avoid being exposed to the solution at the bottom of the wide-mouth bottle. A.6 Blank test body
The test body only contains test pieces and no gas phase rust inhibitor packaging materials or neutral packaging materials without gas phase rust inhibitor. A.7 Test procedure
A,7.F Gas phase corrosion inhibition ability (VIA ) Test
The test body is installed on a wide-mouth bottle. Then the wide-mouth bottle is placed in an electric blast thermostat that has been preheated to 40±1℃. After 3 hours, take it out. After cooling for 10 minutes, loosen the elastic clamp, and add 50mL of glycerol distilled filling water (its density in an environment of 20℃±1℃ should be 1.078/mL±0.0004/mI) into the wide-mouth bottle through a latex tube (which can be equipped with a small funnel). Then clamp the hose and place the bottle in a drying oven. After 21 hours, take it out and quickly fill the aluminum tube with 19℃+1℃ water. Put it back into the thermostat, take it out after 3 hours, pour out the water in the aluminum tube, and observe whether the surface of the test piece is rusted. If necessary, gently wash the surface with absorbent cotton dipped in anhydrous ethanol and observe again. Each group of test bodies is used for retesting, and one group is empty for comparison. A, 7. 2 VIA after accelerated consumption Test A.7.2.1 Accelerated consumption test of the sample
Cut the sample into 200mm×400mm and take two pieces, and weld the four edges. (For double-layer and multi-layer structure films, the volatile side of VCIF should face inwards) Clamp the long side and hang it vertically in an oven at 60±2℃ for a certain time (selected in Team A, 7.2.2). After taking it out, cool it to the VIA test environment temperature:
A.7.2.2 Accelerated consumption time of the sample
is divided into 24h, 48h.72 h.120h and 288h. Each production unit can choose. A.7.2.3 IA test after accelerated consumption
The test procedure shall be carried out in accordance with A.7.1.
A.8 Result evaluation
-The blank test piece has no rust, and the test is repeated;-The blank test piece is concavely rusted. If one or two of the three test pieces do not meet the requirements of Table 2 of this standard, the test should be repeated.-If all three test pieces do not meet the requirements of Table 2 or one piece still does not meet the requirements of Table 2 after the retest, the item is judged to be unqualified. KANiKAcaSandpaper: Aluminum fluoride or diamond type, 240#, 400#, 600)= and 800N; Dryer: Glass, diameter (200~300) mm: Silica gel: fine pore type;
Electroplating tweezers:
Min-shaped needle:
Hair dryer:
Jie porcelain cup:
Absorbent gauze.
A.2 Reagents
Anhydrous Z. Alcohol. Meet the requirements of GB/T678:
95% Z. Alcohol. Meet the requirements of (GB/T679:
Triol (glycerol): Meet the requirements of GB/F687: Solvent oil, meet the requirements of SH0004.
A. 3 Concave test piece
10# steel in accordance with GB/T69, diameter 16mm, height 13mm, with a hole with diameter 1tmm, 10mm and flat bottom in the center of one end, and the other end surface is first processed by a grinder to a roughness of Ra0.8μm. Before use, grind the surface with coarse and fine sandpaper in turn to a roughness of R0.4~0.6μm. The polished surface should not have concave, scratches and rust. Clamp with a forge, and clean with solvent oil (cleaned twice), 95% ethanol through gauze , A water and ethanol, wipe once, blow dry with hot air, cool in a desiccator and set aside. The storage time should not exceed 24h, otherwise it should be re-polished and cleaned.
The surface of the cleaned test piece should be avoided from contact and contamination by bare hands. A,4 Test piece
The extraction and pretreatment of the test piece shall comply with the provisions of 5.1 of this standard. Care should be taken to prevent the surface of the test piece from being contaminated. -KAONKAca
A.5 Test device (see Figure A,1)
Lactic acid tube [8 m
Glass section 8
Insulation hose D16 mm
Formed test piece
eh Rubber explosion 4
Aluminum tube r6mux1.5 mmx11c tun
Rubber 13#
Wide-mouth bottle
Glycerol water-soluble carboxylic acid
Figure A, VIA test body assembly diagram
GB/T 19532—2004
Drill through holes with diameters of 15 mm and 8 mm at appropriate locations between the ends of the 13# rubber plug, and drill a through hole with a diameter of 15 mm in the center of the 9# plug.
h) Put the aluminum tube into the 13# and 9# rubber plugs, and the aluminum tube is exposed beyond 2 mm from the end surface of the 9# plug. ) Place the prepared test piece on a clean paper, press the shaped surface into the 9# plug, and the exposed part of the test surface should not exceed L. Then put this plug into the aluminum substitute (13# plug small end: - side), and make the lead pipe contact with the shaped test piece. Insert the 9# plug of the shaped test piece and the exposed aluminum tube between the 13# large plug, and put a rubber hose with a thickness of not less than 2 mm and a suitable length. mm hole, insert GB/T19532-2004
a glass tube with a diameter of 8tuim, with the exposed length of the upper end surface of about 30mm, then put on a latex tube with a length of 30mm and an inner diameter of 7mm, and use an elastic clamp to tie the mouth of the latex tube,
d) Cut two samples (150mm×50mm), and use thumbtacks to pin them to the symmetrical sides of the rubber plug containing the test piece, with the drug surface facing the test piece.
The lower end of the sample is folded and clamped with a paper clip to keep it in a vertical state and avoid being exposed to the solution at the bottom of the wide-mouth bottle. A.6 Blank test body
The test body only contains test pieces and no gas phase rust inhibitor packaging materials or neutral packaging materials without gas phase rust inhibitor. A.7 Test procedure
A,7.F Gas phase corrosion inhibition ability (VIA ) Test
The test body is installed on a wide-mouth bottle. Then the wide-mouth bottle is placed in an electric blast thermostat that has been preheated to 40±1℃. After 3 hours, take it out. After cooling for 10 minutes, loosen the elastic clamp, and add 50mL of glycerol distilled filling water (its density in an environment of 20℃±1℃ should be 1.078/mL±0.0004/mI) into the wide-mouth bottle through a latex tube (which can be equipped with a small funnel). Then clamp the hose and place the bottle in a drying oven. After 21 hours, take it out and quickly fill the aluminum tube with 19℃+1℃ water. Put it back into the thermostat, take it out after 3 hours, pour out the water in the aluminum tube, and observe whether the surface of the test piece is rusted. If necessary, gently wash the surface with absorbent cotton dipped in anhydrous ethanol and observe again. Each group of test bodies is used for retesting, and one group is empty for comparison. A, 7. 2 VIA after accelerated consumption Test A.7.2.1 Accelerated consumption test of the sample
Cut the sample into 200mm×400mm and take two pieces, and weld the four edges. (For double-layer and multi-layer structure films, the volatile side of VCIF should face inwards) Clamp the long side and hang it vertically in an oven at 60±2℃ for a certain time (selected in Team A, 7.2.2). After taking it out, cool it to the VIA test environment temperature:
A.7.2.2 Accelerated consumption time of the sample
is divided into 24h, 48h.72 h.120h and 288h. Each production unit can choose. A.7.2.3 IA test after accelerated consumption
The test procedure shall be carried out in accordance with A.7.1.
A.8 Result evaluation
-The blank test piece has no rust, and the test is repeated;-The blank test piece is concavely rusted. If one or two of the three test pieces do not meet the requirements of Table 2 of this standard, the test should be repeated.-If all three test pieces do not meet the requirements of Table 2 or one piece still does not meet the requirements of Table 2 after the retest, the item is judged to be unqualified. KANiKAcaThen put the wide-mouth bottle in an electric blast thermostat preheated to 40±1℃, take it out after 3 hours, cool it for 10 minutes, loosen the elastic clamp, add 50mL of glycerol distilled filling liquid (its density in an environment of 20℃±1℃ should be 1.078/mL±0.0004/mL) into the wide-mouth bottle through a latex tube (which can be equipped with a small funnel), then clamp the hose and put the bottle in a drying oven. After 21 hours, take it out and quickly fill the aluminum tube with 19℃+1℃ water. Put it back in the thermostat, take it out after 3 hours, pour out the water in the aluminum tube, and observe whether the surface of the test piece is rusted. If necessary, gently wash the surface with absorbent cotton dipped in anhydrous ethanol and observe it again. Each group of test bodies is used for retesting, and one group is empty for comparison. A.7.2 VIA test after accelerated consumption A.7.2.1 Accelerated consumption test of the sample
Cut the sample into 200mm×400mm and take two pieces, and weld and seal the four edges. (For double-layer and multi-layer structure films, the volatile side of VCIF should face inward) Clamp the long side and hang it vertically in an oven at 60±2℃ for a certain time (selected in A.7.2.2). After taking it out, cool it to the VIA test environment temperature:
A.7.2.2 Accelerated consumption time of the sample
is divided into 24h, 48h.72h.120h and 288h. Each production unit can choose it. A.7.2.3 IA test after accelerated consumption
The test procedure shall be carried out in accordance with A.7.1.
A,8 Result evaluation
One blank test piece has no rust, the test is repeated; One blank test piece has concave rust, if one or two of the three test pieces do not meet the requirements of Table 2 of this standard, the test should be repeated. One three test pieces do not meet the requirements of Table 2 or one of the retest results still does not meet the requirements of Table 2, the item is judged as unqualified.Then put the wide-mouth bottle in an electric blast thermostat preheated to 40±1℃, take it out after 3 hours, cool it for 10 minutes, loosen the elastic clamp, add 50mL of glycerol distilled filling liquid (its density in an environment of 20℃±1℃ should be 1.078/mL±0.0004/mL) into the wide-mouth bottle through a latex tube (which can be equipped with a small funnel), then clamp the hose and put the bottle in a drying oven. After 21 hours, take it out and quickly fill the aluminum tube with 19℃+1℃ water. Put it back in the thermostat, take it out after 3 hours, pour out the water in the aluminum tube, and observe whether the surface of the test piece is rusted. If necessary, gently wash the surface with absorbent cotton dipped in anhydrous ethanol and observe it again. Each group of test bodies is used for retesting, and one group is empty for comparison. A.7.2 VIA test after accelerated consumption A.7.2.1 Accelerated consumption test of the sample
Cut the sample into 200mm×400mm and take two pieces, and weld and seal the four edges. (For double-layer and multi-layer structure films, the volatile side of VCIF should face inward) Clamp the long side and hang it vertically in an oven at 60±2℃ for a certain time (selected in A.7.2.2). After taking it out, cool it to the VIA test environment temperature:
A.7.2.2 Accelerated consumption time of the sample
is divided into 24h, 48h.72h.120h and 288h. Each production unit can choose it. A.7.2.3 IA test after accelerated consumption
The test procedure shall be carried out in accordance with A.7.1.
A,8 Result evaluation
One blank test piece has no rust, the test is repeated; One blank test piece has concave rust, if one or two of the three test pieces do not meet the requirements of Table 2 of this standard, the test should be repeated. One three test pieces do not meet the requirements of Table 2 or one of the retest results still does not meet the requirements of Table 2, the item is judged as unqualified.
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