GSO TC04/DS1 ISO 13756:2025
GSO ISO 13756:2021
ISO 13756:2024
مسودة أولية لمواصفة قياسية خليجية
·
الإنجليزية
·
الجهة المعدة
YSMO
المجوهرات والمعادن الثمينة – تحديد الفضة – قياس فرق الجهد باستخدام كلوريد الصوديوم أو كلوريد البوتاسيوم
Jewellery and precious metals
— Determination of silver
— Potentiometry using sodium chloride or potassium chloride
المرحلة DS :
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{{'Committee draft ({0}) released on {1} and members comments period closed on {2}' | dictionary([project.latestAcceptedEdition,formatDate(project.latestAcceptedVersionAcceptanceDate),formatDate(project.deadline)]) }}
{{'Draft ({0}) released on {1} and is open for public comments until {2}' | dictionary([project.latestAcceptedEdition,formatDate(project.latestAcceptedVersionAcceptanceDate),formatDate(project.deadline)]) }}
{{'Draft ({0}) released on {1} and the public comment period closed on {2}' | dictionary([project.latestAcceptedEdition,formatDate(project.latestAcceptedVersionAcceptanceDate),formatDate(project.deadline)]) }}
{{'No draft available currently. Project was fully rejected and waiting a new draft' | dictionary }}
{{'Final draft ({0}) accepted on {1} and waiting final approval' | dictionary([project.latestAcceptedEdition,formatDate(project.latestAcceptedVersionAcceptanceDate)]) }}
{{'No final draft available. Project was partially rejected. Waiting a new final draft' | dictionary }}
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تفاصيل أساسية
المواصفات ذات العلاقة
المواصفات الأخرى
قطاع المقاييس
الجهة المعدة والمقترحة
YSMO
التصنيف الدولي للمواصفات (ICS)
39.060.0
—
المجوهرات
مجال المشروع
غير متوفر
This document specifies a volumetric method for the determination of silver on a material considered homogeneous. The silver content of the sample lies preferably between (100 and 999,0) parts per thousand (‰) by mass. Fineness above 999,0 ‰ can be determined using a spectroscopy method by difference (e.g. ISO 15096).
This method is intended to be used as the reference method for the determination of fineness in alloys covered by ISO 9202.