GB/T 39996-2021.Fireworks and firecrackers- -Determination of calorific value of pyrotechnic powder.6.1.2氧弹热量计主要有恒温式和绝热式两种,量热系统均被包围在...
GB/T 38575-2021.Spectacle frames- Screw threads.1范围GB/T 38575规定了用于眼镜架的螺纹的分类和要求、螺丝的长度和公差、螺纹丝锥和测量器具。GB/T ...
GB/T 39998-2021.Paper, board and paper products- Determination of alkylphenol polyethoxylates- HPLC-MS method.6标准品的配制6.1辛 基苯酚聚氧乙烯醚标准储备液(1000 ...
GB/T 40274-2021.Tissue paper- Assessment and monitoring guidelines to quality safety condition of production process.生活用纸质量安全因子评估和控制以消费者健康安...
GB/T 40269-2021.Absorbent sanitary paper products- A ssessment and monitoring guidelines to quality safety condition of production process.5.2质量安全因子识别5.2.1总 则5.2...
GB/T 40276-2021.Soft nonwoven towels.GB/T 40276规定了柔巾的要求、试验方法、检验规则.标识和包装、运输和贮存。GB/T 40276适用于以纺织纤维为原料...
GB/T 39993-2021.Determination of permitted preservatives dimethyl oxazolidine,7-ethylbicyclooxazolidine and 5-bromo -5-nitro-1,3-dioxane in cosmetics.1范围GB/T 39993规定了化妆品...
GB/T 6546-2021.Corrugated fibreboard-Determination of edgewise cerush resistance.8试样制备8.1利用锋利的刀片 按规定操作步骤裁取满足以下尺寸要求的样品:垂...
GB/T 40146-2021.Determination of plastic microbead in cosmetics.滤纸上无固体颗粒，滤液应用慢速定性滤纸(5.9)进行抽滤,用不少于100 mL热乙醇水溶液(5.6)和...
GB/T 40145-2021.Determination of 11 glucocorticoids including desonide in cosmetics-Liquid chromatography-tandem mass spectrometry.5.9对照物质:纯度均大于或等于 95%。地索...
