The U.S. Geological Survey (USGS), under contract to NIST, obtained partially dehydrated sewage cake material from the Metropolitan Denver Sewage Disposal District No. 1. The material (approximately 182 kg) was placed in plastic-lined drums and transported to the USGS facilities (Lakewood, CO) for processing. It was dried at ambient temperature in a forced air chamber, ground to pass a 74 µm (200 mesh) sieve, blended for 24 h to assure homogeneity of the pulverized material. Test samples were taken from the blender for preliminary homogeneity analyses. The material was then radiation sterilized. The sterilized material was shipped in bulk to NIST, where the material was bottled in 40 g units after reblending for 4 h.
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一般說明
One unit of SRM 2781 consists of a bottle containing 40 g of dried and pulverized domestic sludge. For more information, please refer to the SDS and COA.
SRM 2781_cert
SRM 2781_SDS
SRM 2781_cert
SRM 2781_SDS
應用
Domestic sludge Standard Reference Material (SRM) is intended primarily for the evaluation of methods employed in analyzing sludges and other materials of a similar matrix.
特點和優勢
- Accompanied with certified mass fraction values for elements that are metrologically traceable to the SI unit for mass expressed as percentages or milligrams per kilogram.
- Reference mass fraction values are provided, along with both elemental and organic constituents, which are noncertified values serving as the best estimates of true values.
- Information mass fraction values are also provided for organic constituents.
- Expiration details, storage, and instructions for use are provided on the NIST certificate.
其他說明
Certified for the analytes listed below.
Arsenic (As), Nitrogen (N), Cadmium (Cd), Chromium (Cr), Copper (Cu), Lead (Pb), Mercury (Hg), Molybdenum (Mo), Nickel (Ni), Selenium (Se), Silver (Ag), Zinc (Zn)
Reference/Informational value is provided for the following analytes.
Beryllium (Be), Aluminum (Al), Calcium (Ca), Iron (Fe), Magnesium (Mg), Phosphorus (P), Potassium (K), Silicon (Si), Sodium (Na), Titanium (Ti), 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexa-methyl-cyclopenta-(γ)-2-benzopyran (HHCB), 7-Acetyl-1,1,3,4,4,6-hexamethyltetralin (AHTN), 5-Acetyl-1,1,2,6-tetramethyl-3-isopropylindan (ATII), 4-Acetyl-1,1-dimethyl-6-tert-butylindan (ADBI), 6-Acetyl-1,1,2,3,3,5-hexamethylindan (AHMI), Perfluorohexanoic Acid (PFHxA), Perfluoroheptanoic Acid (PFHpA), Perfluorooctanoic Acid (PFOA), Perfluorohexanesulfonic Acid (PFHxS), Perfluorooctanesulfonic Acid (PFOS), Perfluorooctane Sulfonamide (PFOSA), γ-hexabromocyclododecane (γ-HBCD), γ-hexabromocyclododecane (γ-HBCD), γ-hexabromocyclododecane (γ-HBCD), Aluminum (Al), Barium (Ba), Cadmium (Cd), Calcium (Ca), Chromium (Cr), Copper (Cu), Iron (Fe), Lead (Pb), Magnesium (Mg), Manganese (Mn), Nickel (Ni), Silver (Ag), Vanadium (V), Zinc (Zn), Perfluorononanoic Acid (PFNA), Perfluorodecanoic Acid (PFDA)
See certificate for values and more details at nist.gov/SRM.
Arsenic (As), Nitrogen (N), Cadmium (Cd), Chromium (Cr), Copper (Cu), Lead (Pb), Mercury (Hg), Molybdenum (Mo), Nickel (Ni), Selenium (Se), Silver (Ag), Zinc (Zn)
Reference/Informational value is provided for the following analytes.
Beryllium (Be), Aluminum (Al), Calcium (Ca), Iron (Fe), Magnesium (Mg), Phosphorus (P), Potassium (K), Silicon (Si), Sodium (Na), Titanium (Ti), 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexa-methyl-cyclopenta-(γ)-2-benzopyran (HHCB), 7-Acetyl-1,1,3,4,4,6-hexamethyltetralin (AHTN), 5-Acetyl-1,1,2,6-tetramethyl-3-isopropylindan (ATII), 4-Acetyl-1,1-dimethyl-6-tert-butylindan (ADBI), 6-Acetyl-1,1,2,3,3,5-hexamethylindan (AHMI), Perfluorohexanoic Acid (PFHxA), Perfluoroheptanoic Acid (PFHpA), Perfluorooctanoic Acid (PFOA), Perfluorohexanesulfonic Acid (PFHxS), Perfluorooctanesulfonic Acid (PFOS), Perfluorooctane Sulfonamide (PFOSA), γ-hexabromocyclododecane (γ-HBCD), γ-hexabromocyclododecane (γ-HBCD), γ-hexabromocyclododecane (γ-HBCD), Aluminum (Al), Barium (Ba), Cadmium (Cd), Calcium (Ca), Chromium (Cr), Copper (Cu), Iron (Fe), Lead (Pb), Magnesium (Mg), Manganese (Mn), Nickel (Ni), Silver (Ag), Vanadium (V), Zinc (Zn), Perfluorononanoic Acid (PFNA), Perfluorodecanoic Acid (PFDA)
See certificate for values and more details at nist.gov/SRM.
法律資訊
NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology
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產品號碼
描述
訂價
儲存類別代碼
13 - Non Combustible Solids
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
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