Caprolactam for industrial use
1 Scope
This standard specifies the requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of caprolactam for industrial use.
This standard is applicable to the production, inspection and sales of caprolactam for industrial use.
Molecular formula: C6H11NO
Structural formula:
Relative molecular mass: 113.16 (as per the international relative atomic mass in 2016)
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 6283 Chemical products - Determination of water - Karl·Fischer method (general method)
GB/T 6678 General principles for sampling chemical products
GB/T 6679 General rules for sampling solid chemical products
GB/T 6680 General rules for sampling liquid chemical products
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 8946 General technical requirements of plastic woven sack
GB/T 13255.1 Test methods of caprolactam for industrial use - Part 1: Determination of colourity of 50% aqueous caprolactam solution - Spectrometric method
GB/T 13255.2 Test methods of caprolactam for industrial use - Part 2: Determination of crystallizing point
GB/T 13255.3 Test methods of caprolactam for industrial use - Part 3: Determination of permanganate absorption number - Spectrometric method
GB/T 13255.4 Test methods of caprolactam for industrial use - Part 4: Determination of volatile bases content - Titrimetric method after distillation
GB/T 13255.5 Test methods of caprolactam for industrial use - Part 5: Determination of absorbance at a wavelength of 290nm
GB/T 13255.6 Test methods of caprolactam for industrial use - Part 6: Determination of acidity or alkalinity
GB/T 13255.7 Test methods of caprolactam for industrial use - Part 7: Determination of iron content
GB/T 13255.8 Test methods of caprolactam for industrial use - Part 8: Determination of cyclohexanone oxime content
3 Requirements
3.1 Appearance
3.1.1 Solid appearance: white, flaky or powdered or granular solids, free of visible mechanical impurities.
3.1.2 Liquid appearance: colorless and transparent liquid, free of visible mechanical impurities.
3.2 Technical indexes
Foreword i
1 Scope
2 Normative references
3 Requirements
4 Test methods
5 Inspection rules
6 Marking, packaging, transportation and storage
