pH计校正用标准物质
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库位号 | 产品名称 | 参考标准 | 规格 | 不确定度pH | 包装单位 | |
PH1-1 | 四草酸钾 | GBW13101 | pH=1.680(25℃) | 0.005 | 100g | |
PH1-2 | 四草酸钾 | GBW(E)130068 | pH=1.68(25℃) | 0.01 | 100g | |
PH2-1 | 酒石酸氢钾 | GBW13102 | pH=3.559(25℃) | 0.005 | 100g | |
PH2-2 | 酒石酸氢钾 | GBW(E)130069 | pH=3.56(25℃) | 0.01 | 100g | |
PH3-1 | 邻苯二甲酸氢钾 | GBW13103 | pH=4.003(25℃) | 0.005 | 50g | |
PH3-2 | 邻苯二甲酸氢钾 | GBW(E)130076 | pH=4.00(25℃) | 0.01 | 100g | |
PH4 | 磷酸二氢钾 | GBW13104 | pH=6.864(25℃) | 0.005 | 100g | |
PH5 | 磷酸氢二钠 | GBW13105 | pH=6.864(25℃) | 0.005 | 100g | |
PH6-1 | 硼砂 | GBW13106 | pH=9.182(25℃) | 0.005 | 100g | |
PH6-2 | 硼砂 | GBW(E)130072 | pH=9.18(25℃) | 0.01 | 100g | |
PH7-1 | 氢氧化钙 | GBW13107 | pH=12.46(25℃) | 0.005 | 100g | |
PH7-2 | 氢氧化钙 | GBW(E)130197 | pH=12.46(25℃) | 0.01 | 100g | |
PH8 | 混合磷酸盐 | GBW(E)130074 | pH=6.86(25℃) | 0.01 | 100g | |
PH9 | 混合磷酸盐 | GBW(E)130075 | pH=7.41(25℃) | 0.01 | 100g | |
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