GB/T 4844-2025 in English

This standard establishes specifications for helium products, including pure helium, high-purity helium, and ultra-pure helium. It outlines requirements for purity levels, testing methods, and packaging procedures to ensure product consistency and quality. The standard provides detailed guidelines for manufacturers and suppliers to follow in order to meet industry benchmarks. It also includes information on sampling techniques and performance criteria to facilitate compliance verification. The document is structured to support both domestic and international trade by ensuring uniformity in product quality and safety standards.