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.

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916 – 930 of 1,030 results

916

Volatiles Supplementary Volatiles Mix, SPEX CertiPrep™

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

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917

Siduron, SPEX CertiPrep™

CAS: 1982-49-6 Molecular Formula: C14H20N2O Molecular Weight (g/mol): 232.33 MDL Number: MFCD00072453 InChI Key: JXVIIQLNUPXOII-UHFFFAOYNA-N PubChem CID: 16116 ChEBI: CHEBI:81744 IUPAC Name: 1-(2-methylcyclohexyl)-3-phenylurea SMILES: CC1CCCCC1NC(=O)NC1=CC=CC=C1

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Specifications

PubChem CID	16116
CAS	1982-49-6
Molecular Weight (g/mol)	232.33
ChEBI	CHEBI:81744
MDL Number	MFCD00072453
SMILES	CC1CCCCC1NC(=O)NC1=CC=CC=C1
IUPAC Name	1-(2-methylcyclohexyl)-3-phenylurea
InChI Key	JXVIIQLNUPXOII-UHFFFAOYNA-N
Molecular Formula	C14H20N2O

918

Dichloroacetonitrile, SPEX CertiPrep™

CAS: 3018-12-0 Molecular Formula: C2HCl2N Molecular Weight (g/mol): 109.937 InChI Key: STZZWJCGRKXEFF-UHFFFAOYSA-N PubChem CID: 18177 ChEBI: CHEBI:82444 IUPAC Name: 2,2-dichloroacetonitrile SMILES: C(#N)C(Cl)Cl

Pricing & Availability
Specifications

PubChem CID	18177
CAS	3018-12-0
Molecular Weight (g/mol)	109.937
ChEBI	CHEBI:82444
SMILES	C(#N)C(Cl)Cl
IUPAC Name	2,2-dichloroacetonitrile
InChI Key	STZZWJCGRKXEFF-UHFFFAOYSA-N
Molecular Formula	C2HCl2N

919

Volatile Organics Combination Mix, Analyte Mixes A, C and D, SPEX CertiPrep™

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

Pricing & Availability

920

2-Chloropropene, SPEX CertiPrep™

CAS: 557-98-2 Molecular Formula: C3H5Cl Molecular Weight (g/mol): 76.523 InChI Key: PNLQPWWBHXMFCA-UHFFFAOYSA-N PubChem CID: 11203 IUPAC Name: 2-chloroprop-1-ene SMILES: CC(=C)Cl

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Specifications

PubChem CID	11203
CAS	557-98-2
Molecular Weight (g/mol)	76.523
SMILES	CC(=C)Cl
IUPAC Name	2-chloroprop-1-ene
InChI Key	PNLQPWWBHXMFCA-UHFFFAOYSA-N
Molecular Formula	C3H5Cl

921

o-Xylene in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 95-47-6 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: MFCD00008519 InChI Key: CTQNGGLPUBDAKN-UHFFFAOYSA-N PubChem CID: 7237 ChEBI: CHEBI:28063 IUPAC Name: 1,2-xylene SMILES: CC1=CC=CC=C1C

Pricing & Availability
Specifications

PubChem CID	7237
CAS	95-47-6
Molecular Weight (g/mol)	106.17
ChEBI	CHEBI:28063
MDL Number	MFCD00008519
SMILES	CC1=CC=CC=C1C
IUPAC Name	1,2-xylene
InChI Key	CTQNGGLPUBDAKN-UHFFFAOYSA-N
Molecular Formula	C8H10

922

Free Acids Analyte Mix with Surrogate, SPEX CertiPrep™

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

Pricing & Availability

923

Analyte Blend, High Level, SPEX CertiPrep™

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

Pricing & Availability

924

Performance Check Standard, SPEX CertiPrep™

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

Pricing & Availability

925

Analyte Mix B, SPEX CertiPrep™

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

Pricing & Availability

926

VOA Additional Analytes Mix D, High Level, SPEX CertiPrep™

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

Pricing & Availability

927

Carbon Tetrachloride in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 56-23-5 Molecular Formula: CCl4 Molecular Weight (g/mol): 153.81 MDL Number: MFCD00000785 InChI Key: VZGDMQKNWNREIO-UHFFFAOYSA-N PubChem CID: 5943 ChEBI: CHEBI:27385 IUPAC Name: tetrachloromethane SMILES: ClC(Cl)(Cl)Cl

Pricing & Availability
Specifications

PubChem CID	5943
CAS	56-23-5
Molecular Weight (g/mol)	153.81
ChEBI	CHEBI:27385
MDL Number	MFCD00000785
SMILES	ClC(Cl)(Cl)Cl
IUPAC Name	tetrachloromethane
InChI Key	VZGDMQKNWNREIO-UHFFFAOYSA-N
Molecular Formula	CCl4

928

Wine Standard in Methanol 100ppm, Labeled Three Component Anisole Internal Std. Mix, SPEX CertiPrep™

CAS: 352439-08-8 Molecular Formula: C7H5Cl3O Molecular Weight (g/mol): 216.497 InChI Key: WCVOGSZTONGSQY-RHIBPKLGSA-N PubChem CID: 16212193 IUPAC Name: 1,3,5-trichloro-2,4-dideuterio-6-(trideuteriomethoxy)benzene SMILES: COC1=C(C=C(C=C1Cl)Cl)Cl

Pricing & Availability
Specifications

PubChem CID	16212193
CAS	352439-08-8
Molecular Weight (g/mol)	216.497
SMILES	COC1=C(C=C(C=C1Cl)Cl)Cl
IUPAC Name	1,3,5-trichloro-2,4-dideuterio-6-(trideuteriomethoxy)benzene
InChI Key	WCVOGSZTONGSQY-RHIBPKLGSA-N
Molecular Formula	C7H5Cl3O

929

Tetraethylene Glycol, SPEX CertiPrep™

CAS: 112-60-7 Molecular Formula: C8H18O5 Molecular Weight (g/mol): 194.227 InChI Key: UWHCKJMYHZGTIT-UHFFFAOYSA-N PubChem CID: 8200 ChEBI: CHEBI:44920 IUPAC Name: 2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethanol SMILES: C(COCCOCCOCCO)O

Pricing & Availability
Specifications

PubChem CID	8200
CAS	112-60-7
Molecular Weight (g/mol)	194.227
ChEBI	CHEBI:44920
SMILES	C(COCCOCCOCCO)O
IUPAC Name	2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethanol
InChI Key	UWHCKJMYHZGTIT-UHFFFAOYSA-N
Molecular Formula	C8H18O5

930

2,4,5-Trichlorotoluene, SPEX CertiPrep™

CAS: 6639-30-1 Molecular Formula: C7H5Cl3 Molecular Weight (g/mol): 195.467 InChI Key: ZCXHZKNWIYVQNC-UHFFFAOYSA-N PubChem CID: 23128 IUPAC Name: 1,2,4-trichloro-5-methylbenzene SMILES: CC1=CC(=C(C=C1Cl)Cl)Cl

Pricing & Availability
Specifications

PubChem CID	23128
CAS	6639-30-1
Molecular Weight (g/mol)	195.467
SMILES	CC1=CC(=C(C=C1Cl)Cl)Cl
IUPAC Name	1,2,4-trichloro-5-methylbenzene
InChI Key	ZCXHZKNWIYVQNC-UHFFFAOYSA-N
Molecular Formula	C7H5Cl3

EPA Methods Standards

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

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

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

Volatile Organics Combination Mix, Analyte Mixes A, C and D, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

o-Xylene in Dimethyl Sulfoxide, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Free Acids Analyte Mix with Surrogate, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

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

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

VOA Additional Analytes Mix D, High Level, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Carbon Tetrachloride in Dimethyl Sulfoxide, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Wine Standard in Methanol 100ppm, Labeled Three Component Anisole Internal Std. Mix, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

2,4,5-Trichlorotoluene, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Volatiles Supplementary Volatiles Mix, SPEX CertiPrep™

Siduron, SPEX CertiPrep™

Dichloroacetonitrile, SPEX CertiPrep™

Volatile Organics Combination Mix, Analyte Mixes A, C and D, SPEX CertiPrep™

2-Chloropropene, SPEX CertiPrep™

o-Xylene in Dimethyl Sulfoxide, SPEX CertiPrep™

Free Acids Analyte Mix with Surrogate, SPEX CertiPrep™

Analyte Blend, High Level, SPEX CertiPrep™

Performance Check Standard, SPEX CertiPrep™

Analyte Mix B, SPEX CertiPrep™

VOA Additional Analytes Mix D, High Level, SPEX CertiPrep™

Carbon Tetrachloride in Dimethyl Sulfoxide, SPEX CertiPrep™

Wine Standard in Methanol 100ppm, Labeled Three Component Anisole Internal Std. Mix, SPEX CertiPrep™

Tetraethylene Glycol, SPEX CertiPrep™

2,4,5-Trichlorotoluene, SPEX CertiPrep™