EPA Methods Standards

Environmental Protection Agency standards suitable for use as reference materials for assaying environmental sample conditions; includes standards for use in determining air, water, and soil quality.

76 – 90 of 1,043 results

Phthalates in Polyethylene Standard, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

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Global/ICH Elemental Impurities E, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

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Global/ICH Precious Metal Impurities B (without Os), SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

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Global/ICH Elemental Impurities F, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

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Surrogate Standard, SPEX CertiPrep™

CAS: 110-56-5 Molecular Formula: C4H8Cl2 Molecular Weight (g/mol): 127.01 MDL Number: MFCD00001011 InChI Key: KJDRSWPQXHESDQ-UHFFFAOYSA-N PubChem CID: 8059 IUPAC Name: 1,4-dichlorobutane SMILES: ClCCCCCl

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Specifications

PubChem CID	8059
CAS	110-56-5
Molecular Weight (g/mol)	127.01
MDL Number	MFCD00001011
SMILES	ClCCCCCl
IUPAC Name	1,4-dichlorobutane
InChI Key	KJDRSWPQXHESDQ-UHFFFAOYSA-N
Molecular Formula	C4H8Cl2

Alcohols Mix, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

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Mixed Calibration Standard 5A For Environmental Analysis, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

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Specifications

Type	Certified Reference Material
Concentration or Composition Notes	Up to 68 elements are scanned with found values for ICP and ICP-MS standards. The found value of the trace metallic impurities is reported on the Certificate of Analysis.
Concentration or Composition (by Analyte or Components)	Components in 5% HNO₃: Be •10μg/mL Fe •100μg/mL Pb •100μg/mL Mg •100μg/mL Ni •20μg/mL Tl •50μg/mL
For Use With (Equipment)	AA, ICP, ICP/MS, IC, XRF, and Other Analytical Instrumentation
Packaging	Triple-leached LDPE bottle
DOT Information	Hazardous
Chemical Name or Material	ICP Mixed Calibration Standard 5A
Grade	Environmental
Recommended Storage	Ambient
Technique	AA,ICP
Solvent or Matrix	5% HNO3

Long List Appendix IX Compounds Mix E, High Level, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

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Ethylene Oxide, SPEX CertiPrep™

CAS: 75-21-8 Molecular Formula: C2H4O Molecular Weight (g/mol): 44.053 InChI Key: IAYPIBMASNFSPL-UHFFFAOYSA-N PubChem CID: 6354 ChEBI: CHEBI:27561 IUPAC Name: oxirane SMILES: C1CO1

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Specifications

PubChem CID	6354
CAS	75-21-8
Molecular Weight (g/mol)	44.053
ChEBI	CHEBI:27561
SMILES	C1CO1
IUPAC Name	oxirane
InChI Key	IAYPIBMASNFSPL-UHFFFAOYSA-N
Molecular Formula	C2H4O

2-Methylpropane, SPEX CertiPrep™

CAS: 75-28-5 Molecular Formula: C4H10 Molecular Weight (g/mol): 58.124 InChI Key: NNPPMTNAJDCUHE-UHFFFAOYSA-N PubChem CID: 6360 ChEBI: CHEBI:30363 IUPAC Name: 2-methylpropane SMILES: CC(C)C

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Specifications

PubChem CID	6360
CAS	75-28-5
Molecular Weight (g/mol)	58.124
ChEBI	CHEBI:30363
SMILES	CC(C)C
IUPAC Name	2-methylpropane
InChI Key	NNPPMTNAJDCUHE-UHFFFAOYSA-N
Molecular Formula	C4H10

Interference Check Standard 18 For Environmental Analysis, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Pricing & Availability
Specifications

Type	Certified Reference Material
Concentration or Composition Notes	Up to 68 elements are scanned with found values for ICP and ICP-MS standards. The found value of the trace metallic impurities is reported on the Certificate of Analysis.
Concentration or Composition (by Analyte or Components)	Various
For Use With (Equipment)	AA, ICP, ICP/MS, IC, XRF, and Other Analytical Instrumentation
Health Hazard 1	Danger: Causes severe skin burns and eye damage Do not breathe dusts or mists. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. If in eyes, rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a poison center/doctor. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.
Packaging	Triple-leached LDPE bottle
DOT Information	Hazardous
Chemical Name or Material	Interference Check Standard 18
Grade	Environmental
Recommended Storage	Ambient
Technique	AA,ICP
Solvent or Matrix	5% HNO3

2-Chloroethylvinyl Ether, SPEX CertiPrep™

CAS: 110-75-8 Molecular Formula: C4H7ClO Molecular Weight (g/mol): 106.549 InChI Key: DNJRKFKAFWSXSE-UHFFFAOYSA-N PubChem CID: 8074 IUPAC Name: 1-chloro-2-ethenoxyethane SMILES: C=COCCCl

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Specifications

PubChem CID	8074
CAS	110-75-8
Molecular Weight (g/mol)	106.549
SMILES	C=COCCCl
IUPAC Name	1-chloro-2-ethenoxyethane
InChI Key	DNJRKFKAFWSXSE-UHFFFAOYSA-N
Molecular Formula	C4H7ClO

Acetonitrile, SPEX CertiPrep™

CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N

Pricing & Availability
Specifications

PubChem CID	6342
CAS	75-05-8
Molecular Weight (g/mol)	41.053
ChEBI	CHEBI:38472
SMILES	CC#N
IUPAC Name	acetonitrile
InChI Key	WEVYAHXRMPXWCK-UHFFFAOYSA-N
Molecular Formula	C2H3N

Decachlorobiphenyl, SPEX CertiPrep™

CAS: 2051-24-3 Molecular Formula: C12Cl10 Molecular Weight (g/mol): 498.632 InChI Key: ONXPZLFXDMAPRO-UHFFFAOYSA-N PubChem CID: 16318 ChEBI: CHEBI:34666 IUPAC Name: 1,2,3,4,5-pentachloro-6-(2,3,4,5,6-pentachlorophenyl)benzene SMILES: C1(=C(C(=C(C(=C1Cl)Cl)Cl)Cl)Cl)C2=C(C(=C(C(=C2Cl)Cl)Cl)Cl)Cl

Pricing & Availability
Specifications

PubChem CID	16318
CAS	2051-24-3
Molecular Weight (g/mol)	498.632
ChEBI	CHEBI:34666
SMILES	C1(=C(C(=C(C(=C1Cl)Cl)Cl)Cl)Cl)C2=C(C(=C(C(=C2Cl)Cl)Cl)Cl)Cl
IUPAC Name	1,2,3,4,5-pentachloro-6-(2,3,4,5,6-pentachlorophenyl)benzene
InChI Key	ONXPZLFXDMAPRO-UHFFFAOYSA-N
Molecular Formula	C12Cl10

n-Butane, SPEX CertiPrep™

CAS: 106-97-8 Molecular Formula: C4H10 Molecular Weight (g/mol): 58.124 InChI Key: IJDNQMDRQITEOD-UHFFFAOYSA-N PubChem CID: 7843 ChEBI: CHEBI:37808 IUPAC Name: butane SMILES: CCCC

Pricing & Availability
Specifications

PubChem CID	7843
CAS	106-97-8
Molecular Weight (g/mol)	58.124
ChEBI	CHEBI:37808
SMILES	CCCC
IUPAC Name	butane
InChI Key	IJDNQMDRQITEOD-UHFFFAOYSA-N
Molecular Formula	C4H10

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EPA Methods Standards

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Phthalates in Polyethylene Standard, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Global/ICH Elemental Impurities E, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Global/ICH Precious Metal Impurities B (without Os), SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Global/ICH Elemental Impurities F, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Surrogate Standard, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Alcohols Mix, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Mixed Calibration Standard 5A For Environmental Analysis, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Long List Appendix IX Compounds Mix E, High Level, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Ethylene Oxide, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

2-Methylpropane, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Interference Check Standard 18 For Environmental Analysis, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

2-Chloroethylvinyl Ether, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Acetonitrile, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Decachlorobiphenyl, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

n-Butane, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Phthalates in Polyethylene Standard, SPEX CertiPrep™

Global/ICH Elemental Impurities E, SPEX CertiPrep™

Global/ICH Precious Metal Impurities B (without Os), SPEX CertiPrep™

Global/ICH Elemental Impurities F, SPEX CertiPrep™

Surrogate Standard, SPEX CertiPrep™

Alcohols Mix, SPEX CertiPrep™

Mixed Calibration Standard 5A For Environmental Analysis, SPEX CertiPrep™

Long List Appendix IX Compounds Mix E, High Level, SPEX CertiPrep™

Ethylene Oxide, SPEX CertiPrep™

2-Methylpropane, SPEX CertiPrep™

Interference Check Standard 18 For Environmental Analysis, SPEX CertiPrep™

2-Chloroethylvinyl Ether, SPEX CertiPrep™

Acetonitrile, SPEX CertiPrep™

Decachlorobiphenyl, SPEX CertiPrep™

n-Butane, SPEX CertiPrep™