供应美国标准局NIST汽油中的醇和醚（氧化物）
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SRMs 2294 through 2297 were produced in
response to the U.S. EPA Final Rule on Reformulated Gas aimed at reducing the
volatile organic compounds emitted from gasoline. SRMs 2294 through 2297 are
certified for oxygenate, sulfur,benzene, and[……]
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供应美国NIST粉末状沸石标准物质
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These RMs are intended to provide a common
source of zeolite materials for measurement comparisons. Additional reference
and information values are provided for atomic ratios of Si to Al and Na to Al,
trace element content,enthalpy of formation,[……]
供应美国标准局NIST粉末状沸石标准物质
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These RMs are intended to provide a common
source of zeolite materials for measurement comparisons. Additional reference
and information values are provided for atomic ratios of Si to Al and Na to Al,
trace element content,enthalpy of formati[……]
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供应美国标准局NIST沸石标准物质（粉末状）
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These RMs are intended to provide a common
source of zeolite materials for measurement comparisons. Additional reference
and information values are provided for atomic ratios of Si to Al and Na to Al,
trace element content,enthalpy of forma[……]
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供应美国标准局NIST粉末状废汽车催化剂标准物质
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These SRMs are intended for use in the
evaluation of methods for the analysis of the platinum group metals and lead in
auto catalysts. They were produced in cooperation with the International
Precious Metals Institute and are issued as fi[……]
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供应美国标准局NIST粉末状废汽车催化剂
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These SRMs are intended for use in the
evaluation of methods for the analysis of the platinum group metals and lead in
auto catalysts. They were produced in cooperation with the International
Precious Metals Institute and are issued as fine ([……]
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供应美国标准局NIST废汽车催化剂（粉末状）
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These SRMs are intended for use in the
evaluation of methods for the analysis of the platinum group metals and lead in
auto catalysts. They were produced in cooperation with the International
Precious Metals Institute and are issued as fine[……]
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供应美国NIST环境基质中碳值标准物质
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SRM 1632e Trace
Elements in Coal (Bituminous) 煤中微量元素（烟煤） 50 g
SRM 1944 N[……]
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供应美国标准局NIST环境基质中碳值标准物质
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SRM 1632e Trace
Elements in Coal (Bituminous) 煤中微量元素（烟煤） 50 g
SRM 1944  [……]
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供应美国标准局NIST具有碳值的环境基质
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SRM 1632e Trace
Elements in Coal (Bituminous) 煤中微量元素（烟煤） 50 g
SRM 1944 [……]
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