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NBN T 04-280-1985 1250 Phenol for industrial use- Visual test for impurities insoluble in water《工业用苯酚 不溶于水的杂质的目测试验》.pdf 1

NBN T 04-280-1985 1250 Phenol for industrial use- Visual test for impurities insoluble in water《工业用苯酚 不溶于水的杂质的目测试验》.pdfNBN T 04-280-1985 1250 Phenol for industrial use- Visual test for impurities insoluble in water《工业用苯酚 不溶于水的杂质的目测试验》.pdf

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NBN T 04-279-1985 6875 Phenol and cresols for industrial use- Visual test for impurities insoluble in sodium hydroxide solution《工业用酚和甲酚 不溶于氢氧化钠溶液杂质的目测试验》.pdf 1

NBN T 04-279-1985 6875 Phenol and cresols for industrial use- Visual test for impurities insoluble in sodium hydroxide solution《工业用酚和甲酚 不溶于氢氧化钠溶液杂质的目测试验》.pdfNBN T 04-279-1985 6875 Phenol and cresols for industrial use- Visual test for impurities insoluble in sodium hydroxide solution《工业用酚和甲酚 不溶于氢氧化钠溶液杂质的目测试验》.pdf

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NBN T 04-278-1985 6875 Phenol cresols cresylic acid and xylenols for industrial use- Determination of neutral oils and pyridine bases《工业用酚；甲酚；甲酚酸和二甲苯酚，中性油和吡啶碱含量的测定》.pdf 1

NBN T 04-278-1985 6875 Phenol cresols cresylic acid and xylenols for industrial use- Determination of neutral oils and pyridine bases《工业用酚；甲酚；甲酚酸和二甲苯酚，中性油和吡啶碱含量的测定》.pdfNBN T 04-278-1985 6875 Phenol cresols cresylic acid and xylenols for industrial use- Determination of neutral oils and pyridine bases《工业用酚；甲酚；甲酚酸和二甲苯酚，中性油和吡啶碱含量的测定》.pdf

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NBN T 03-242-1980 1875 Sodium and potassium silicates for industrial use - Determination of iron content - 1 10-Phenanthroline photometric method《工业用硅酸钾钠，铁含量的测定 1 10菲洛啉光度测定法》.pdf 5

NBN T 03-242-1980 1875 Sodium and potassium silicates for industrial use - Determination of iron content - 1 10-Phenanthroline photometric method《工业用硅酸钾钠，铁含量的测定 1 10菲洛啉光度测定法》.pdfNBN T 03-242-1980 1875 Sodium and potassium silicates for industrial use - Determination of iron content - 1 10-Phenanthroline photometric method《工业用硅酸钾钠，铁含量的测定 1 10菲洛啉光度测定法》.pdf

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NBN T 03-241-1980 6250 Sodium and potassium silicates for industrial use - Determination of sulphates content - Barium sulphate gravimetrie method《工业用硅酸钾钠，硫酸盐的测定 硫酸钡重力测定法》.pdf 5

NBN T 03-241-1980 6250 Sodium and potassium silicates for industrial use - Determination of sulphates content - Barium sulphate gravimetrie method《工业用硅酸钾钠，硫酸盐的测定 硫酸钡重力测定法》.pdfNBN T 03-241-1980 6250 Sodium and potassium silicates for industrial use - Determination of sulphates content - Barium sulphate gravimetrie method《工业用硅酸钾钠，硫酸盐的测定 硫酸钡重力测定法》.pdf

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NBN T 03-240-1980 7500 Sodium and potassium silicates for industrial use - Determination of silica content - Titrimetric method《工业用硅酸钾钠，硅含量的测定 滴定法》.pdf 5

NBN T 03-240-1980 7500 Sodium and potassium silicates for industrial use - Determination of silica content - Titrimetric method《工业用硅酸钾钠，硅含量的测定 滴定法》.pdfNBN T 03-240-1980 7500 Sodium and potassium silicates for industrial use - Determination of silica content - Titrimetric method《工业用硅酸钾钠，硅含量的测定 滴定法》.pdf

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NBN T 03-239-1980 7500 Sodium and potassium silicates for industrial use - Determination of dynamic viscosity《工业用硅酸钾钠，动态粘度的测定》.pdf 5

NBN T 03-239-1980 7500 Sodium and potassium silicates for industrial use - Determination of dynamic viscosity《工业用硅酸钾钠，动态粘度的测定》.pdfNBN T 03-239-1980 7500 Sodium and potassium silicates for industrial use - Determination of dynamic viscosity《工业用硅酸钾钠，动态粘度的测定》.pdf

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NBN T 03-238-1980 8750 Sodium and potassium silicates for industrial use - Preparation of solution of products not easily sOluble in boiling water and determination of matter insol.pdf 6

NBN T 03-238-1980 8750 Sodium and potassium silicates for industrial use - Preparation of solution of products not easily sOluble in boiling water and determination of matter insol.pdfNBN T 03-238-1980 8750 Sodium and potassium silicates for industrial use - Preparation of solution of products not easily sOluble in boiling water and determination of matter insol.pdf

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NBN S 20-001-1975 0000 Lifebuoy《救生圈》.pdf 7

NBN S 20-001-1975 0000 Lifebuoy《救生圈》.pdfNBN S 20-001-1975 0000 Lifebuoy《救生圈》.pdf

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NBN S 06-004-1986 8125 Personal eye-protection - Infrared filters - Transmittance requirements and recomraended utilisation《个人的视力保护 红外线滤光器 运输和使用的建议》.pdf 6

NBN S 06-004-1986 8125 Personal eye-protection - Infrared filters - Transmittance requirements and recomraended utilisation《个人的视力保护 红外线滤光器 运输和使用的建议》.pdfNBN S 06-004-1986 8125 Personal eye-protection - Infrared filters - Transmittance requirements and recomraended utilisation《个人的视力保护 红外线滤光器 运输和使用的建议》.pdf

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