The Inspection Standard of Ferro molybdenum
- Details
- Category: Molybdenum knowledge
- Published on 15 August 2013
- Written by 陈桂兰
- Hits: 331
(1) the quality inspection and acceptance. The quality of the products should be consistent with the inspection and acceptance of GB/T3650-95 "acceptance, packaging, storage and transportation ferroalloy, signs and quality certificate general provisions of the requirements .
(2) of group. Products to a the furnace for a batch of delivery or by both the supply and the demand according to the furnace of group agreed, each product group with the highest or lowest molybdenum content and average sample containing molybdenum amount shall not exceed 3% of the difference.
(3) sampling. Chemical analysis of the sample should be taken with GB/T4010-94 "ferroalloy with samples taken chemical analysis and preparation of.
(4) sample preparation. Chemical analysis of samples with the preparation of GB/T4010-94 "ferroalloy chemical analysis and system with samples taken for" carry on.
(5) chemical analysis method. Corresponding to the following standards each element inspection: GB5059 1-85 8-hydroxyl KuiLin weight method to determine the molybdenum amount; GB5059.2-85 malachite green spectrophotometry antimony quantity; GB5059.3-85 atomic absorption spectrophotometry quantity copper; --88 GB5059.4 predicating method for the determination of zion; GB5059.5-86 weight method for the determination of silicon; GB5059.6-86 molybdenum blu-ray degree method for the determination of phosphorus; GB5059.7-88 infrared absorption spectrometry carbon; GB5059.8-88 coulomb method to determine the carbon; GB5059.9-88 of the infrared absorption method for the determination of sulfur; GB5059.10-88 combustion technique of potassium titration method of sulfur.
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