GJB 3169A-2021 Specification for phase-stabilized grade of prilled ammonium nitrate
1 Scope
This specification specifies the requirements, quality assurance provisions, delivery preparation, etc. for phase-stabilized grade of prilled ammonium nitrate.
This specification is applicable to nickel oxide-modified phase-stabilized grade of prilled ammonium nitrate (hereinafter referred to as "PSAN").
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this specification. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this specification. However parties using this specification are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB 190 Packing symbol of dangerous goods
GB/T 191 Packaging - Pictorial marking for handling of goods
GB/T 601 Chemical reagent - Preparations of reference titration solutions
GB/T 603 Chemical reagent - Preparations of reagent solutions for use in test methods
GB/T 2945-2017 Ammonium nitrate
GB/T 6678-2003 General principles for sampling chemical products
GB/T 6679-2003 General rules for sampling solid chemical products
GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods
GB/T 8979-2008 Pure nitrogen and high purity nitrogen and ultra pure nitrogen
JT/T 617 The regulation of automobile transportation of dangerous goods
3 Requirements
3.1 Appearance
PSAN shall be approximately spherical particles that are light green in color and free of visible impurities to the naked eye.
3.2 Physical and chemical properties
The physical and chemical properties of PSAN shall meet those specified in Table 1.
Table 1 Physical and chemical properties
Item Indicator
Mass fraction of ammonium nitrate, % ≥96.0
Crystal transition temperature, ℃ ≥62
Hygroscopicity (at 25℃), % ≥50
Mass fraction of water, % ≤0.5
3.3 Particle size
3.3.1 Particle size requirements for Class I products
Weight mean diameter: (150±30)μm.
3.3.2 Particle size requirements for Class II products
The particle size of Class II products shall meet those specified in Table 2.
Table 2 Particle size requirements for Class II products
Mesh size of test sieve, μm Mass fraction, %
Oversize Undersize
425~250 0~5 0~30
250~180 0~5 0~30
180~150 0~5 0~30
150~125 0~5 0~30
125~106 0~5 0~30
106~75 0~5 0~30
Note: See Annex B for the correspondence table between mesh sizes and mesh numbers of standard test sieves.
4 Quality assurance provisions
4.1 Inspection classification
The inspections specified in this specification are quality consistency inspections.
4.2 Quality consistency inspection
4.2.1 Inspection items
See Table 3 for inspection items.
Contents
Foreword I
1 Scope
2 Normative references
3 Requirements
4 Quality assurance provisions
5 Delivery preparation
6 Explanatory notes
Annex A (Informative) Table of air relative humidity (RH) corresponding to mass fraction of sulfuric acid at 25℃
Annex B (Informative) Correspondence table between mesh sizes and mesh numbers of standard test sieves
GJB 3169A-2021 Specification for phase-stabilized grade of prilled ammonium nitrate
1 Scope
This specification specifies the requirements, quality assurance provisions, delivery preparation, etc. for phase-stabilized grade of prilled ammonium nitrate.
This specification is applicable to nickel oxide-modified phase-stabilized grade of prilled ammonium nitrate (hereinafter referred to as "PSAN").
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this specification. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this specification. However parties using this specification are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB 190 Packing symbol of dangerous goods
GB/T 191 Packaging - Pictorial marking for handling of goods
GB/T 601 Chemical reagent - Preparations of reference titration solutions
GB/T 603 Chemical reagent - Preparations of reagent solutions for use in test methods
GB/T 2945-2017 Ammonium nitrate
GB/T 6678-2003 General principles for sampling chemical products
GB/T 6679-2003 General rules for sampling solid chemical products
GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods
GB/T 8979-2008 Pure nitrogen and high purity nitrogen and ultra pure nitrogen
JT/T 617 The regulation of automobile transportation of dangerous goods
3 Requirements
3.1 Appearance
PSAN shall be approximately spherical particles that are light green in color and free of visible impurities to the naked eye.
3.2 Physical and chemical properties
The physical and chemical properties of PSAN shall meet those specified in Table 1.
Table 1 Physical and chemical properties
Item Indicator
Mass fraction of ammonium nitrate, % ≥96.0
Crystal transition temperature, ℃ ≥62
Hygroscopicity (at 25℃), % ≥50
Mass fraction of water, % ≤0.5
3.3 Particle size
3.3.1 Particle size requirements for Class I products
Weight mean diameter: (150±30)μm.
3.3.2 Particle size requirements for Class II products
The particle size of Class II products shall meet those specified in Table 2.
Table 2 Particle size requirements for Class II products
Mesh size of test sieve, μm Mass fraction, %
Oversize Undersize
425~250 0~5 0~30
250~180 0~5 0~30
180~150 0~5 0~30
150~125 0~5 0~30
125~106 0~5 0~30
106~75 0~5 0~30
Note: See Annex B for the correspondence table between mesh sizes and mesh numbers of standard test sieves.
4 Quality assurance provisions
4.1 Inspection classification
The inspections specified in this specification are quality consistency inspections.
4.2 Quality consistency inspection
4.2.1 Inspection items
See Table 3 for inspection items.
Contents of GJB 3169A-2021
Contents
Foreword I
1 Scope
2 Normative references
3 Requirements
4 Quality assurance provisions
5 Delivery preparation
6 Explanatory notes
Annex A (Informative) Table of air relative humidity (RH) corresponding to mass fraction of sulfuric acid at 25℃
Annex B (Informative) Correspondence table between mesh sizes and mesh numbers of standard test sieves
