Standard Number: YB/T 4609-2017(YB/T4609-2017)
Chinese:电镀铬钢板及钢带表面金属铬和氧化铬试验方法
English:Test Method for Metal Chromium and Chromium Oxide on Surface of Chromium Plated Steel Plates and Strips
Effective Date:2018-01-01
Standard Applicability:This standard specifies the alkali separation – dibenzoyl dihydrazide spectrophotometric method for the determination of chromium oxide quality on the surface of chrome-plated plate and electrolytic separation – dibenzoyl dihydrazide spectrophotometric method for the determination of metal chromium quality. This standard applies to the determination of chromium oxide quality of chromium-plated plate surface coating and the determination of chromium metal quality of chromium-plated plate surface coating, the determination of the range are: 2 mg/m2 ~ 50 mg/m2 and 50 mg/m2 ~ 160 mg/m2.
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