This standard specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and other requirements of cylindrical steel drums. This standard applies to the manufacture, circulation, use and supervision and inspection of steel drums. GB 325-1991 Packaging container steel drums GB325-1991 standard download decompression password: www.bzxz.net
This standard specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and other requirements of cylindrical steel drums. This standard applies to the manufacture, circulation, use and supervision and inspection of steel drums.

National Standard of the People's Republic of China
Packing containers-Steeldrum
1 Subject content and scope of application
CB 325-91
Replaces GR 2584
This standard specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and other requirements of cylindrical steel drums. This standard applies to the manufacture, circulation, use and supervision and inspection of steel drums. 2 Reference standards
GB 1727
GB 2828
GB 2828
GB 3538
General preparation method for paint film
Batch inspection Count sampling procedure and sampling table (applicable to inspection of continuous batches) Count sampling procedure and sampling table for periodic inspection (applicable to inspection of stable dust generation process) Labeling method for various parts of transport packages
GB 4857. 3
Basic tests for transport packages Stacking test method GB1857.5Basic tests for transport packages Vertical impact drop test method Measurement of thickness of non-magnetic coating on magnetic metal substrate Magnetic method GB 4956
GB 13040
GB 13251
Packaging terms Metal container
Metal container
Steel drum closure
3 Terms, symbols, codes
3.1 Terms
Conform to the provisions of GB13040.
3.2 Symbols
d—Inner diameter.
di——Inner diameter of shrinkage.
H——Inner height.
L——Axis distance.
L—Distance from the center of the injection port to the inside of the curling edge. I—Distance from the center of the injection port to the center of the vent. A—Axis height.
B—Corrugation height.
h—Hook depth.
h.—Depth of barrel bottom.
—Depth of barrel cover.
Depth of cover edge.
Diameter of coiled tube.
Approved by the State Technical Supervision Bureau on November 9, 1991 and implemented on August 1, 1992
),——Outer diameter of the drum cover.
P: Outer diameter of the drum cover.
3.3 Steel phase grade code:
I——Grade 1 steel.
Grade 2 steel auxiliary.
E——Grade 3 steel drum.
Classification of steel drums
Steel drums are divided into one category and four types, see Table 1. Hong
Closed steel drum
Fully open steel drum
4.2 The capacity and size of steel drums
GB 32591
The structure of closed steel drums is shown in Figure 1, and the size is shown in Table 2. Type
Small open steel cylinder
Medium open barrel
Straight open steel drum
Open pre-dissolved agent
Breathable!
a. Small open steel drum
Erdan flat roll
CB 325-91
Sealing packing
Double curling
Work edge type
b.Medium opening steel drum
Triple curling
Blood glass pattern
Open copper
Small opening steel drum
Medium opening steel drumwww.bzxz.net
Small mouth steel drum
Medium opening steel drum
Small parallel mouth steel drum
Medium opening steel drum
Medium opening barrel
Small opening steel drum
G B32591 Basic Limits Basic Limits Main Limits Plate Limits Basic Limits Basic Limits Basic Limits Deviation Dimensions 1 Deviation Dimensions Old Dimensions Dimensions All Differences Deviation Dimensions Deviation Dimensions 1 200:560 100430 Note: 1) Only for formal closures under the law 4. 2. 2 Fully open L steel auxiliary structure See Figure 2. Basic dimensions See Table 3, 280 Deviation dimensions: Deviation Note: 1 See Figure 1. a. Straight open steel drum Asian safety edge GB 325- 91
Double surface if over
[edge type
b. Open filling steel drum
Triple solid edge
Straight open drum
Open shrink steel drum
Straight open steel drum
Open shrink steel drum
Open shrink steel drum
Open shrink steel drum
Open shrink steel drum
Straight open steel wall
Open shrink steel drum
200560
180-130
Note:) Reserve capacity,
12/-301
4. 3 Steel drums are classified by material thickness as shown in Table 4 ,Capacity
Heavy-duty plug
5 Technical requirements
5.1 Basic requirements
Upper 2280±3
8+221+3:
Sub-medium-sized barrel
Barrel top and bottom
Light-duty barrel
0.3 ~ 0.1
5.1.1 Steel barrels are divided into grade ", ", "100" according to performance, GB325-91
5.1.2 The penetration and structure size of steel barrels shall comply with the provisions of Article 4.2. 5.1.3 The barrel body, barrel head and barrel bottom are all made of thin steel plates, and splicing is not allowed. 5.1.4 The barrel body welds are welded by resistance welding. 5.1. 5 The barrel body adopts one of the following types with two ring ribs
and 3-~7 corrugations at both ends:
It has two ring ribs, and there are 3~7 corrugations between the ring ribs and the barrel top and the ring ribs and the barrel bottom. 5.1. 6 The barrel body, the barrel top, and the barrel bottom are sealed with sealing fillers as needed, and the types can be the following types; a.
Double flat curling 1
Double round curling;
Triple round curling
5.1.7 The top of the barrel should be equipped with a closure according to the opening type. 5.1.7.1 Small opening steel drums can adopt one of the following: One spiral injection port closure!
Each spiral injection port and vent closure. 5.1.7.2 Medium-open steel drums may adopt one of the following: pressure-release closure;
beam bolt compression closure;
screw top pressure closure.
5.1.7.3 Straight-open and open-necked steel drums may adopt one of the following bolt-type closure hoops;
h. Lever-type closure hoops.
5.1.8 The inner and outer surface joints of steel drums shall be coated with a protective layer. 5.2 Performance requirements
5.2.1 The airtightness test pressure value (gauge pressure) of small-open steel drums: Level I requirement is 30kPa, and there is no leakage after inspection + a.
I, and Level 1 requirement is 20kPa, and there is no leakage after inspection. h.
5.2.2 Hydraulic test pressure value (gauge pressure) of small-opening steel stems; a.
Level 1 requires a minimum of 25kPa. Maintain pressure for 5 minutes without leakage: H, Level 1 requires a minimum of 100kPa, maintain pressure for 5 minutes without leakage 5.2.3 Drop test of steel drums:
Level 2 requires a drop height of 1.8m, no leakage or cracking after falling; Level 3 requires a drop height of 1.2m, no leakage or cracking after falling: b.
Level 4 requires a drop height of 0.8m, no leakage or cracking after falling, 5.2.4 Stacking test of steel drums
The stacking height is 8 Ⅱ1, and the duration is 24 h, after inspection, the steel drum should not have any deformation or serious damage that may reduce its strength or cause instability. Stacking load is calculated according to formula (1): F = H_hw
Where: F—stacking load, N,
H—stack height.m:
$—single barrel height.ml
GB 325—91
W—weight of a single steel drum after it is filled with articles; K—deterioration coefficient
5.3 Quality requirements
5.3.1 Quality requirements for closure assembly
The closure is complete and well sealed after assembly, and the interchangeability of the matching parts is guaranteed: a.
The height of the closure of a small-opening steel drum after assembly is low and the edge of the roll. h.
5.3.2 Quality requirements for the protective layer on the inner and outer surfaces of steel drums: The adhesion of the paint film shall not be lower than Grade 2 specified in Appendix A (Supplement); a.
The thickness of the zinc layer shall not be less than 0.010mm.
5.3.3 Quality requirements for the appearance of steel drums
5.3.3.1 The steel drum shall be round, free of burrs and mechanical damage, and free of iron tongue. 5.3.3.2 There shall be no more than 2 concave moles on the steel drum, and the area of ​​each concave mole shall not exceed 0.7% of the area of ​​the drum body. 5.3.3.3 The barrel body straight seam repair welding is not more than 2 places, the weld scar surface is flat, the width is not more than 1 times of the original weld, the total length is not more than 10% of the straight seam length, and the top of the ring reinforcement is not allowed to be repaired.
5.3.3.4 The steel curling edge is allowed to be repaired with a full circle, and the weld is even and smooth. 5.3.3.5 The barrel is clean, free of rust, slag and other impurities. 5.3. 3.6
The paint film is flat and smooth, with uniform color, without wrinkles and flow. 5. 3. 3.7
The zinc layer is complete, the structure is tight, and there are no defects such as compensation and blistering. 5.4 Material requirements
Plates shall comply with the following provisions:
GB11253 Cold-rolled thin steel plates and strips of carbon structural steel and low-alloy structural steel; h.
G13912 Hot-rolled thin steel plates and strips of cable-embedded structural steel and low-alloy structural steel: e.
(H3276 200L hot-rolled carbon structural steel thin steel plates for barrels GB2518 Continuous hot-dip galvanized thin steel plates and strips. d.
Cold-rolled thin steel plates shall be preferred. Other thin steel plates with performance not lower than that specified in the above standards may also be used. 5.4.2 Sealing fillers shall be made of materials with good sealing performance, heat resistance, weather resistance, durability and anti-falling properties that are suitable for the contents. 5.4.3 The external surface coating shall be made of materials with strong adhesion, good weather resistance and durability: The internal surface coating shall be made of materials that are suitable for the contents: 5.4 .4 When used to hold food, food additives or medicines, the sealing fillers and internal coatings must comply with the provisions of the Food Hygiene Law and relevant standards.
5.4.5 The sealer should comply with the provisions of GB13251. 6 Test methods
6.1 Basic dimensions
Tested with universal measuring tools:
6.2 Airtightness test
Performed in accordance with the provisions of Appendix B (Supplement) of this standard. 6.3 Hydraulic test
Performed in accordance with the provisions of Appendix C (Supplement) of this standard. 6.4 Drop test
Performed in accordance with the provisions of GB4857.5, the steel drum is not pre-treated with temperature and humidity, and meets the following conditions: 8. Fill a small-opening steel drum with 98% clean water, select 5.6 points on the edge and drop one each. 56 lines drop one, and drill the highest part of the steel drum after falling:
GB 325--91
b, a mixture of sand and sawdust with a density of 1.2 kg/m3 and a middle-rising, straight-opening, open-necked steel drum containing 95% of the mixture, is selected to fall from the 5.6 point on the reverse edge. One falls from the 56 line. 6.5 Stacking test
Perform according to the provisions of GB4857.3, and the steel paving is not subjected to temperature and humidity treatment. 6.6 Assembly quality of the closure
Perform according to the provisions of GB 13251,
6.7 Quality of the internal and external surface protective layer
6.7.1 Adhesion of the paint film shall be carried out according to Appendix A (supplement) of this standard 6.7.2 The thickness of the zinc layer shall be carried out according to the provisions of GB4956. 6. 8 Appearance quality
Inspection by hand, visual inspection and general measuring tools: 7 Inspection rules
7.1 Steel drums shall be inspected by the quality supervision department of the manufacturer in accordance with this standard and a certificate of conformity shall be issued. 7.2 Inspection of steel drums is divided into factory inspection and type inspection. 7.2.1 Factory inspection
Articles 5.1.5.2.1.5.3 of this standard are factory inspection items. 7.2.2 Type inspection
7.2.2.1 The technical requirements specified in this standard are type inspection items. 7.2.2.2 Type inspection shall be carried out when any of the following conditions exist in steel drums: a.
Trial determination and identification of new products or old products transferred to the factory for production: when the structure, material, and process change may affect the product performance: normal production, inspection shall be carried out every six months: when production is resumed after a long period of suspension;
When the national quality supervision agency proposes the requirement for type inspection. 7.3 Sampling, batching and judgment rules
7.3.1 The classification of unqualified items is shown in Table 5.
Required inspection items
Ring reinforcement quotient
Ring reinforcement spacing
Corrugation height
Depth of top and bottom of plug
Distance from the center of the injection port to the center of the air delivery port
Distance from the center of the injection port to the Fabian internal compensation
A Class A is unqualified
Class B is unqualified
Class C is unqualified
7.3.2 Inspection
Inspection items
Tube diameter
Inner diameter of braided tube
Outer diameter of barrel cover
Outer diameter of barrel cover
Depth of barrel cover
Depth of barrel edge
Round, no burrs, no iron tongue
No mechanical damage||tt| |No rust, no residue
The film is flat and smooth
The paint film is not sensitive or flowing
The zinc film is not layered or blistering
The film adhesion
The zinc layer thickness
Interchangeability of closure
Airtightness test
Wave pressure test
Drop test
Stacking test
7.3.2.1 Each shift is an inspection batch.
7.3.2.2 According to GB2828, a normal sampling plan a.
GB 325- 91
Continued Table 5
Class A nonconformity
Article 5.2.1 of this standard, IL-S-1, AQI=2.5; Articles 5.1 and 5.3 of this standard, I.=S3, AQL-6.5, 7.3.2.3 Determination of sample unit nonconformity:
When there is one unqualified item in Class A,
When there are more than one unqualified item in Class B, and when there are more than two unqualified items in Class C, there are more than two unqualified items in Class B. When the number of unqualified items of C is zero; when the number of unqualified items of B is zero and the number of unqualified items of C is greater than four, d.
7.3.2.4 Determination of batches
Unqualified items of B
Unqualified items of C
GB325--91
According to the provisions of Article 7.3.2.2, if unqualified, after repair or elimination of unqualified products, can be resubmitted for inspection, the strictness remains unchanged, and if still unqualified, the batch is judged to be unqualified.
7.3.3 Type inspection
7. 3. 3. 1 According to the provisions of GB 2829, form the test group a. Article 5.1.5.3 of this standard is the first group:
h. 5.2.1, 5.2.2, 5.3.3 and 5.2.4 of this standard are respectively for the second to fifth groups. 7.3.3.2 According to the one-time sampling plan of GB2829: a. The first group RQL = 65, DL = 1, n = 3;
The second to fifth groups RQL = 30, DL = 1, n = 3b.
7.3.3.3 The judgment of the sample unit failure of the first group: when the number of Class B failures is greater than two items, the number of Class C failures is zero; when the number of Class B failures is zero, the number of Class C failures is greater than four items. 7.3.3.4 If there are · Class A failures in the sample units of the second to fifth groups, the sample unit is judged to be unqualified. 7.3.3.5 If one test group fails, the type inspection is judged to be unqualified. 7.4 Steel drum delivery conditions
7.4.1 Steel drums are delivered in the factory.
7.4.2 The delivery of steel drums is based on the certificate issued by the manufacturer. When the user has any quality problems, he has the right to inspect the items specified in the technical requirements of this standard. If the inspection meets the requirements of this standard, the inspected drums shall be regarded as the actual number of delivery. 8 Marking, packaging, transportation, storage
8.1 Marking
Steel drums shall be stamped with a mark on the edge of the drum: the content is as follows: a. The name or code of the manufacturer,
b. The year and month of production;
c. The thickness of the steel plate (top, bottom/body).
8.2 Packaging
Steel drums shall be packed in containers, pallets or in a method agreed with the user. 8.3 Transportation
Steel drums are thin-walled containers. During transportation and loading and unloading, they should be held, dropped and moved as much as possible. 8.4 Storage
Steel drums should not be placed in the air. When stacking, a cushion layer should be placed on the bottom. GB 325-91
Appendix A
Method for Determination of Adhesion of Paint Film on Steel Drums
(Supplement)
This method is applicable to the determination of adhesion of paint film on steel drums. The fastness of the paint film to the bottom material of the steel drum body is the adhesion. It is evaluated according to the completeness of the paint film within the range of the square grid scratches and is expressed in grades. A1 Inspection tools
A1.1 Single-edged scratching knife: It has a 30° angle circular blade. The shape and size are shown in Figure A1. A1.2 The width of the blade gap of the guide is 1mm. The shape is shown in Figure A2. 0.05
Detailed figure
When the blade is damaged to 0.[mm
, it must be repaired
Single-edged cutting knife
J0 1mm wide blade gap M
Layer positive sail
Guide
A1.3 Paint: Width 25-35 mm,
A1.44 times the effect of human mirror.
42 Determination method
A2.1 Sample: Prepared according to GB1727: or directly measured on the flat surface of the paint film on the steel drum. A2.2 The coating should be completely dry and measured at room temperature.
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