NY/T 701-2003

Water shield processing enterprises use this standard to regulate production processes and quality control of water shield products. Quality inspection departments rely on this standard for factory inspection and type testing to ensure products meet safety and hygiene requirements. This standard is important because it unifies the grading system (Grade 1 to 4) for water shield products, specifying key indicators such as black knot rate, leaf roll size, and leaf bud rate, thereby protecting consumer rights and promoting healthy industry development.

莼菜加工企业使用本标准来规范莼菜制品的生产流程和质量控制。质检部门依据本标准对产品进行出厂检验和型式检验，确保产品符合安全卫生要求。本标准的重要性在于统一了莼菜产品的分级标准（一级至四级），明确了黑节率、卷叶尺寸、叶片带芽率等关键指标，保障了消费者权益和行业健康发展。

This standard NY/T 701-2003 specifies terms, requirements, test methods, inspection rules, packaging, transport and storage for water shield products. The product is made from fresh water shield through fixing, cooling and sterilization. The standard classifies products into four grades based on black knot rate, leaf roll size, leaf bud rate, and specifies physicochemical and hygiene indicators including pH value, heavy metal limits and microbiological requirements. Test methods cover sensory inspection, leaf roll size measurement, solid content determination, etc. Inspection rules include factory inspection and type testing; unqualified products cannot leave the factory. Packaging and labeling must comply with GB 7718, and shelf life varies by packaging type.

本标准NY/T 701-2003规定了莼菜制品的术语、要求、试验方法、检验规则及包装运输贮存。产品以新鲜莼菜为原料，经杀青、冷却、灭菌加工而成。标准将产品分为四级，依据黑节率、卷叶尺寸、叶片带芽率等指标分级，并规定了理化卫生指标如pH值、重金属限量及微生物要求。试验方法涵盖感官检验、卷叶尺寸测量、固形物含量测定等。检验规则包括出厂检验和型式检验，不合格产品不得出厂。包装标签需符合GB 7718，保质期因包装形式而异。