This standard specifies requirements, test methods, inspection rules, as well as packaging, transport and storage of fertilizer grade merchant phosphoric acid.
This standard is applicable to fertilizer grade merchant phosphoric acid produced by taking wet-process phosphoric acid as raw material.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies.
GB 190 Packing symbol of dangerous goods
GB/T 1250 Rules for expression and judgment of limiting values
GB/T 6678 General principles for sampling chemical products
GB/T 6680 General rules for sampling liquid chemical products
GB 15603 Rule for storage of chemical dangers
HG/T 2843 Chemical fertilizer products - Standard volumetric, standard, reagent and indicator solutions for chemical analysis
Administrative measures for product quality arbitration inspection and quality appraisal
3 Requirements
3.1 Appearance: colored viscous liquid, without suspended impurities.
3.2 The fertilizer grade merchant phosphoric acid products shall meet the requirements of Table 1.
