OTHER
ISO 16:1975
ISO 16:1975 is an international standard that defines the standard tuning frequency for musical instruments, specifically the note A in the treble stave, at 440 Hz. This standard, published by the International Organization for Standardization (ISO), provides a reference for tuning musical instruments and acoustic equipment.
📄 Document
Title: APPLICATION FORM OF ISO 16:1975
📜 Document Instructions:
Please fill the application form and upload required documents online for ISO Certification.
