Some standard content:
GB 17583 -- 1998 | development needs.
Appendix A and Appendix B of this standard are standard appendices. This standard was proposed by China Ordnance Industry Corporation. This standard is under the jurisdiction of the China Ordnance Industry Standardization Research Institute. This standard was drafted by: Changsha Mining and Metallurgical Research Institute of Metallurgical Industry, Changsha Mining Research Institute of China Nonferrous Metals Corporation, and China Ordnance Industry Standardization Research Institute.
The main drafters of this standard: Liu Baokang, Xie Tiezhi, Tan Lin, Yang Jinxia, ??He Shizhen. 787
1 Scope
National Standard of the People's Republic of China
Porous granular ammonium nitrate fuel oil explosive
Ammonium nitrate fuel oil explosiveGB17583-1998
This standard specifies the porous Technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, etc. of granular ammonium fuel oil explosives. This standard is applicable to detonator-free sensitivity prepared by mixing porous granular ammonium nitrate as the main component with a certain proportion of light diesel oil and suitable for open-air blasting (it can also be used for underground medium-deep hole blasting without gas and dust explosion hazards). of ammonium fuel oil. 2 Referenced standards
The provisions contained in the following standards constitute provisions of this standard by being quoted in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB/T12436-1990 Explosive functional capacity test lead method GB/T12440-1990 Explosive strength test Lead column compression method GB/T13228-1991 Industrial explosive explosion velocity determination method GB14493-1993 Industrial explosive packaging
Quoted in this standard The raw material standards are shown in Appendix A (Appendix of the Standard). 3 Requirements
3.1 Components
The component content of porous granular ammonium fuel oil explosives should comply with the requirements in Table 1. Table 1 Component content of porous granular ammonium oil explosive Components
Content requirements
3.2 Raw materials
Porous granular ammonium nitrate
94. 0～95. 0|| tt | Requirements, light diesel oil should meet the requirements of GB252,
3.3 Performance
The performance indicators of porous granular ammonium fuel oil explosives should meet the requirements of Table 2. Table 2
Porous granular ammonium fuel oil performance indicators
Moisture
Project
%
Explosion velocity
m/s||tt| |Indicator requirements
≥2 800
0.3
Note: The validity period of explosives is calculated from the date of completion of manufacturing. The State Administration of Quality and Technical Supervision approved 788||tt| on November 19, 1998. |Strength
mm
≥15
Working ability
(lead filling method)
mL
≥278||tt ||Explosive validity period
30
Explosive validity period
Moisture
%
No.5
Explosion speed
m /s
≥2 500
1999-07-01 Implementation
4 Test Methods
GB17583 -1998
4.1 Determination of Explosive Components and Moisture Follow the requirements of Appendix B (Standard Appendix). 4.2 The measurement of explosion velocity shall be carried out in accordance with the requirements of GB/T13228. A ±50mm×5mm×350mm welded steel pipe (GB/T3092) is used for charging, and 50g of No. 2 rock ammonium ladder explosive is used for detonation. The charging density should not be less than 0.9g/cm2. 4.3 The intensity is measured according to the requirements of GB/T12440 conduct. Among them, a $50mm×5mm×60mm welded steel pipe (GB/T3092) is used to charge, with a total charge of 50g (including 5g of No. 2 rock ammonium ladder explosive as the detonator), and a charge density of 0.8g/cm~0.9 g/cm*.
4.4 The measurement of operating capacity shall be carried out in accordance with the requirements of GB/T12436. 5 Inspection Rules
Porous granular ammonium fuel oil explosives must be inspected by the quality inspection department of the manufacturer. Products shipped from the factory should comply with the requirements of this standard. Each batch of products leaving the factory should be accompanied by a product quality inspection certificate. Users have the right to inspect whether the products received meet the requirements of this standard. The moisture content and explosion velocity can be inspected according to the requirements within the validity period.
5.1 Inspection items and inspection cycle
a) The moisture content of each batch should be measured;
b) The composition, explosion speed and intensity should be measured at least once every five batches; c) Function The force is determined only during type inspection. 5.2 Batch
Products produced continuously under the same production conditions form a batch. Each batch of bulk products should not exceed 20t (when the annual output does not exceed 2,000t) or 50t (when the annual output exceeds 2,000t); each batch of mixed products should not exceed 50t. 5.3 Sampling
a) For bulk products, six packages are taken from each batch, and at least 1kg is taken from each package. Mixed products can be sampled during the drilling process, and the total sample size should be no less than 6kg. .
b) The sample taken out should be marked with the product name, batch number, manufacturing date, sampling date, test items and the name of the sampler. 5.4 Inspection procedures and judgment rules
Inspection shall be carried out according to the inspection cycle requirements of 5.1. The first batch of the inspection interval is the representative batch. If the representative batch passes the initial inspection, the product will be judged to be qualified; if a certain test result of the representative batch fails to pass the initial inspection , can be retested. If the re-inspection still fails, the representative batch will be deemed unqualified and should be removed from the products submitted for inspection, and the measurement of this item will be carried out on 10 consecutive batches after this unqualified batch. If all 10 batches are qualified, the normal inspection cycle can be resumed for sampling. If another batch of 10 batches is unqualified, in addition to the elimination of this batch, the same test should be carried out on 10 consecutive batches after the unqualified batch. Project testing.
5.5 Re-inspection rules
During re-inspection, two samples should be taken from the original sampling package to re-inspect the item. When the re-inspection results meet the requirements, the project will be deemed qualified.
6 Marking, Packaging, Transportation, Storage
6.1 Marking, Packaging
6.1.1 Mark
The outer packaging mark of porous granular ammonium fuel oil explosives should comply with GB14493-1993 meet the requirements of Chapter 5. 6.1.2 Packaging
Bulk porous granular ammonium fuel oil explosives should be packed in plastic woven bags (GB8946) lined with a layer of polyethylene blown film (GB/T4456), and the bags should be tied tightly with ropes. The net weight of explosives in each package shall be 25kg±0.25kg or 40kg±0.4kg. 789 | | tt | | 6.1.3 | Check the packaging quality. All inspected packages should meet the requirements. When packages that do not meet the requirements appear, 100% of the batch of packages should be inspected, and those that do not meet the requirements should be returned for repair. 6.2 Transportation
The transportation of porous granular ammonium fuel oil explosives should be carried out in accordance with national regulations on the transportation of dangerous goods. 6.3
8 Storage
Bulk porous granular ammonium oil should be stored in a dry warehouse with good ventilation. 790
GB 17583 1998
Appendix A
(Appendix to the standard)
Raw material standards cited in this standard
Table A1 lists this standard Referenced raw material standards. Table A1 raw material standards
serial number
1
2
4
GB2521994 light diesel oil
GB/T 684 ---1986
Chemical reagents
Toluene
GB/T 3092---1993
GR/T 4456--1984
GB8946| |tt||1988
Standard number and name
Welded steel pipe for low-pressure fluid transportation
Polyethylene blown film for packaging
Plastic woven bag
HG/T 2327--1992
HG 3280..1990
B1 Moisture determination methodbzxz.net
B1.1 Principle
Industrial calcium fluoride
Porous granular ammonium nitrate
Appendix B
(Standard appendix)
Porous granular ammonium oil explosive moisture, group According to the measurement method, while the light diesel oil in the sample is extracted with a solvent, the water contained in the sample is also evaporated. After the oil and water are separated, the water volume is read and the moisture content is calculated.
B1.2 Reagent
a) Toluene: GB/T684, analytical grade;
b) Anhydrous calcium chloride: HG/T2327.
B1.3 Instrument or device
a) Analytical balance: Sensitivity is 1mgs
b) Moisture measuring device: See Figure B1. The capacity of the round-bottomed flask is 500mL, the minimum scale value of the moisture receptor is 0.02mL, and the length of the straight condenser tube is 250~300mm;
c) Electric heating mantle: 500mL (or oil bath); d) Graduated cylinder: 500mL.
Preparation of B1.4 sample
From the extracted sample, take samples from the upper, middle and lower parts, put them into a wide-mouth bottle and mix them for later use. B1.5 Measurement steps
Weigh about 50g of sample, accurate to 0.01g. Put it into a round-bottomed flask, add 250 to 300mL of toluene dehydrated with anhydrous calcium fluoride, connect the moisture receiver and the condenser tube, pass cooling water, and heat the round-bottomed flask in an electric heating mantle (or oil bath) until the liquid in the bottle boils. , make toluene flow continuously until the volume of water in the moisture receiver no longer increases, then stop distillation. After the moisture receiver has cooled to room temperature and the liquid in the tube has clearly separated into layers, record the volume of water in the moisture receiver (read accurately to the minimum scale value). 791
Explanation of B1.6 measurement results
GB17583
-1998
1·-round bottom flask; 2-moisture receiver; 3-straight condenser tube Figure B1 Moisture measuring device
The moisture content in the sample is calculated according to formula (B1): w,
Mass fraction of moisture in the sample, %;
in ||tt| |Q—density of water, in 1 g/cm2;
V—volume of water in the moisture receiver, mL
m—sample mass g.
e·v
. B2 component determination method
B2.1 Principle
·(B)
Use toluene to separate the light diesel oil and porous granular ammonium nitrate in the sample, and measure the light diesel oil and porous granular ammonium nitrate The content of ammonium nitrate in the sample. B2.2 Reagent
a) Anhydrous calcium chloride: HG/T2327;
b) Toluene; GB/T684, use anhydrous calcium fluoride after dehydration and filtration. B2.3 Instruments or devices
a) Analytical balance: sensitivity 0.1mg;
b) Filter cup: No. 3 or 4;
c) Oven.
792
82.4 Preparation of sample
GB 17583 - 1998
From the sample taken out, take a total of three samples from the upper, middle and lower parts Put 100~150g into a wide-mouth bottle, mix and set aside. B2.5 Analysis Steps
B2.5.1 Take two No. 3 or No. 4 filter cups, wash them first with distilled water, then with toluene, and then dry them in a 95-105C oven to a constant weight, accurate to 0.0002 g.
B2.5.2 Use No. 3 or No. 4 filter cup to weigh 5~10g of the sample, accurate to 0.0002. Then rinse the sample with hot toluene, using 3 to 5 ml each time until the light diesel oil is washed away (put a few drops of washing liquid on the watch glass, evaporate to dryness and then wash without any white traces). B2.5.3 Place the filter cup with residue in an oven at 95 to 105°C to dry for 1 hour, take it out and put it in a desiccator to cool for 30 minutes before weighing. B2.6 Expression of measurement results
a) The content of light diesel oil is calculated according to formula (B2): z
where: 2—
m-mz- mwi||tt| |m(l
Mass fraction of light diesel oil in dry sample, %, ml-total mass of sample and filter cup before treatment with toluene, g; m2
Use The total mass of the dried residue after toluene treatment and the filter cup, g; 1
m-sample mass,
The mass fraction of moisture in the sample, %
×. 100 | |tt||The mass fraction of porous granular ammonium nitrate in the dry sample, %; where: —
w2——The mass fraction of light diesel oil in the dry sample, %. (B2)
·(B3)
793
3. Dry the filter cup with residue in an oven at 95-105°C for 1 hour, take it out and put it in a desiccator to cool for 30 minutes before weighing. B2.6 Expression of measurement results
a) The content of light diesel oil is calculated according to formula (B2): z
where: 2—
m-mz- mwi||tt| |m(l
Mass fraction of light diesel oil in dry sample, %, ml-total mass of sample and filter cup before treatment with toluene, g; m2
Use The total mass of the dried residue after toluene treatment and the filter cup, g; 1
m-sample mass,
The mass fraction of moisture in the sample, %
×. 100 | | tt | |tt|| is the mass fraction of porous granular ammonium nitrate in the dry sample, %; where: —
w2——the mass fraction of light diesel oil in the dry sample, %. (B2)
·(B3)
793
3. Dry the filter cup with residue in an oven at 95-105°C for 1 hour, take it out and put it in a desiccator to cool for 30 minutes before weighing. B2.6 Expression of measurement results
a) The content of light diesel oil is calculated according to formula (B2): z
where: 2—
m-mz- mwi||tt| |m(l
Mass fraction of light diesel oil in dry sample, %, ml-total mass of sample and filter cup before treatment with toluene, g; m2
Use The total mass of the dried residue after toluene treatment and the filter cup, g; 1
m-sample mass,
The mass fraction of moisture in the sample, %
×. 100 | | tt | |tt|| is the mass fraction of porous granular ammonium nitrate in the dry sample, %; where: —
w2——the mass fraction of light diesel oil in the dry sample, %. (B2)
·(B3)
793
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