HG 3057-1989 Carbon black packaging, storage, transportation, sampling and acceptance methods HG3057-1989 standard download decompression password: www.bzxz.net

UDC 661.666 : 004.3
National Standard of the People's Republic of China
GB 377989
Adjusted to: G 57-18
Carbon black - Method of packing, storage, transporting, sampling and acceptance1989-03-31Promulgated
Implemented on 1989-12-01
Promulgated by the State Administration of Technical Supervision
National Standard of the People's Republic of China
Carbon black - Method of packing, storing.transporting, sampling and acceptanceSubject content and scope of application
This standard specifies the packaging, storage, transportation, sampling and acceptance methods for bagged carbon black. This standard applies to all carbon black for rubber use. 2 Reference standards
GB3778 Technical conditions for carbon bears for rubber
GB 6678
General rules for sampling of chemical products
3 Product packaging
3.1 At the end of the production process, the net weight of each product is 20000kg and it is packaged. 3.2 The product is packed in bags, and the packaging form is a fan-flat rectangular parallelepiped. 3.3 The product packaging material must have the ability to prevent moisture and pollution. 3.4 The structure of the packaging bag:
CB 3779:89
Generation GR3779-83
a, the inner bag is a layer of 80g/m2 kraft paper, the outer bag is a plastic woven bag with a layer of plastic film on the inner wall; b, the inner bag is a layer of 80g/m2 kraft paper, the outer bag is a kraft paper bag with a layer of plastic woven film on the inner wall; .
The inner bag is a layer of 80g/m2 kraft paper, the outer bag is a layer of 8g/m2 kraft paper bag and the packaging meets the requirements of the user. 3.5 Sewing and stitching of packaging bags Materials:
Cotton or synthetic fiber threadSuture:
Appropriate stationContaining agentAdhesion:
Heat pressing (the inner bag should be sewn).
Packaging mark
4.1 The front of the packaging bag should have a clear mark, the content of the mark includes: a.
Manufacturer name:
Product name;
Trademark;
Net weight;
Storage and handling requirements;
Date of manufacture.
4.2 There should be a 8cm wide product identification color band on the front and side of the packaging bag. The color of each variety of color bands shall be adjusted according to the standard color in Appendix A. Approved by the Ministry of Chemical Industry of the People's Republic of China on March 6, 1989 and implemented on December 1, 1989
·Product storage
GB3779-89
Variety series
Natural gas semi-reinforced
The warehouse should be kept dry, ventilated, moisture-proof and rain-proof. 5.2 It shall not be stored together with other items that may cause the product to deteriorate or damage the packaging bag. 5.$, Any product that leaks out of the bag. It shall not be returned to the bag. 5.4 Stack separately according to product type and grade. Each pile shall not exceed 4,000 bags, and the distance between piles shall not be less than 1 ㎡. Transportation
Transportation tools: trains, cars, ships, etc. All covered with awnings. 6.1
Pink
Dark red
Sky blue
During transportation, products must not be mixed with items that may deteriorate the product or damage the packaging in the same carriage (cabin). Be careful to prevent damage during loading and unloading.
?Sampling
7.1 Sampler
7.1:1 Stainless steel sampling spoon with handle.
7.1.2 Sampling tube: The tube is a hard plastic or stainless steel tube, and the sealing plate is a rubber plate. Its inner hole is slightly smaller than the outer diameter of the main tube and can move along the axial direction of the main tube. See the figure below for a schematic diagram.
了.2 Sample container
Plastic product with a screw cap that can hold 2kg of carbon black sample. 7. Number of samples
GB 3779:B9Www.bzxZ.net
Sealing plate
Sampling tube schematic diagram
7.3.1 According to GB6678, if the number of units of the overall material is less than 500, the number of sampling units shall be selected according to the provisions of Table 2. Table 2 Provisions for selecting sampling units
Number of overall material units N
11 ~ 49
50 ~ 64
102~125
126~151
152-181
182~216
217~254
255~296
297-343
344-391
395～450
451~512
Select the minimum number of units
GB 7T9—89
7.3.2 If the total material unit is greater than 500, the number of sampling units is three times the cube root of the total number of units, that is, 3). If there is a decimal, it is rounded up to an integer. 7.4 The total amount of sampling
2kg (including the reserved sample).
7.5 Sampling method
N (N is the total unit
Use a sampling spoon to take samples of approximately equal quantities per unit from the seam of the carbon black packaging bag and put them into the sample container. After sampling, sew up the bag mouth. Or lay the carbon black bag flat, clean the part to be cut for sampling, cut a cross-shaped opening and press the sealing plate on it, insert the oblique end of the sampling tube upward to the required position, and let the carbon black flow into the sample bottle through the tube. After taking the required amount, lay the carbon black bag flat, pull out the sampling tube, and seal the sampling port.
7.6 Sample label||t t||After the sample is placed in the container, a label is immediately affixed to the container wall. The label content includes: sample name and sample number
b,: overall material batch number and quantity;
production unit:
sampling location,
sample quantity1
sample date
sampler.
7.7 Sample preservation
Samples should be stored in a sample room with appropriate temperature and humidity. The effective storage period of samples is 6 months.
8 Acceptance
Product acceptance shall be in accordance with the factory inspection regulations. 8.2 According to GB, 3778, if one of the indicators does not meet the technical indicators of the product grade, the product will be judged as unqualified.
The acceptance period shall be completed within 30 days from the date the product arrives at the consignee's station or port. 8.3
Acceptance sampling shall be carried out in accordance with Chapter 7.
8.5 When a quality dispute occurs between the supply and demand parties, both parties shall jointly take samples and send or mail them to the Carbon Black Standardization Technical Unit of the Ministry of Chemical Industry and the Carbon Black Quality Monitoring Center of the Ministry of Chemical Industry for arbitration. 4
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Appendix A
Color of the ribbon
(Supplement)
Dark red
Additional notes:
This standard is proposed by the Carbon Black Technical Committee of the National Technical Committee for Standardization of Rubber and Rubber Products, and is technically managed by the Carbon Black Industry Research and Design Institute of the Ministry of Chemical Industry.
The main drafters of this standard are Gao Hanwu and Yu Guifen. Letter of the People's Republic of China
National Standard
Carbon Black Packaging, Storage, Transportation, Sampling and Acceptance Methods GB 3779—89
Published by China Standards Press
(Beijing Fuwai Sanlihe)
China Standards Press Beijing Printing Factory\Printed by Xinhua Store Beijing Distribution Office Distributed by Xinhua Bookstores in various places Copyright is exclusive and may not be reproduced
Format 880×12301/16 Printing sheet 1/2 Number of words 10000 First edition December 1990 First printing December 1990 Printing run 1—2500
Book number: 155066-1-7675
Price 0.85 yuan
Heading 151—15
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