Density Standards
密度標準品可用作比重瓶技術、振動技術或比重計技術之密度測量校正標準。這些標準品係以重量法（溶劑與溶質）使用 OIML 可追溯砝碼製備而成。其密度經由完全校正的參考比重瓶確立。密度標準品具有高精度，並可搭配任何品牌或型號的密度測量儀器使用。標準品以高品質、防拆封的琥珀色玻璃瓶包裝提供。
VWR®, Density standards referenced at 15 °C
Supplier: VWR Chemicals
These products can be used as calibration standards for density measurements by pycnometric, vibrational or hydrometer-based techniques.
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VWR®, Density standards referenced at 20 °C
Supplier: VWR Chemicals
These products can be used as calibration standards for density measurements by pycnometric, vibrational or hydrometer-based techniques.
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VWR®, Density standards referenced at 25 °C
Supplier: VWR Chemicals
These products can be used as calibration standards for density measurements by pycnometric, vibrational or hydrometer-based techniques.
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VWR®, Density standards referenced at 40 °C
Supplier: VWR Chemicals
These products can be used as calibration standards for density measurements by pycnometric, vibrational or hydrometer-based techniques.
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VWR®, Density standards referenced at 50 °C
Supplier: VWR Chemicals
These products can be used as calibration standards for density measurements by pycnometric, vibrational or hydrometer-based techniques.
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VWR®, Density standards referenced at 60 °C
Supplier: VWR Chemicals
These products can be used as calibration standards for density measurements by pycnometric, vibrational or hydrometer-based techniques.
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VWR®, Density Standards Referenced at 80 °C
Supplier: VWR Chemicals
These products can be used as calibration standards for density measurements by pycnometric, vibrational or hydrometer-based techniques.
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VWR®, Density Standards for the Petroleum Industry, Certified Reference Materials
Supplier: VWR Chemicals
Density Certified Reference Materials are for the verification of laboratory instruments used in testing petroleum and derivative products for density in accordance with methodology, but not limited to, such as ASTM D4052, IP 365 and other equivalent international methodology.
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VWR®, Relative Density standards within the range of 15 to 25 °C
Supplier: VWR Chemicals
This range of relative density standards are certified in accordance with primary level ASTM D1480 methodology, and are dual-certified to ISO 17025 / ISO 17034 under UKAS accreditation. Relative Density standards are designed for the calibration or verification of instruments used to measure density and relative density of materials at the desired test temperature within the range of 15 to 25 °C.