You searched for: Standards

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

Supplier: Restek

Contains: Chloroform (67-66-3); 1,1-Dichloroethene (75-35-4); 1,2-Dichloropropane (78-87-5); Ethylbenzene (100-41-4); Toluene (108-88-3); Vinyl chloride (75-01-4)

Supplier: Restek

These calibration mixtures are made with pure, highly characterized neat material and are prepared using NIST-traceable balances and weights. Each ampul is supplied with a data sheet indicating the exact concentration and a sample chromatogram.

Supplier: Restek

Mix Contains: Carbon disulfide (75-15-0); Chloroacetonitrile (107-14-2); 1-Chlorobutane (Butyl chloride) (109-69-3); trans-1,4-Dichloro-2-butene (110-57-6); 1,1-Dichloro-2-propanone (513-88-2); Diethyl ether (ethyl ether) (60-29-7); Hexachloroethane (67-72-1); Iodomethane (methyl iodide) (74-88-4); Methacrylonitrile (126-98-7); Methyl tert-butyl ether (MTBE) (1634-04-4); 2-Nitropropane (79-46-9); Propionitrile (107-12-0).

Supplier: Restek

Contains: Acenaphthene (83-32-9); Acenaphthylene (208-96-8); Anthracene (120-12-7); Benz(a)anthracene (56-55-3); Benzo(a)pyrene (50-32-8); Benzo(b)fluoranthene (205-99-2); Benzo(ghi)perylene (191-24-2); Benzo(k)fluoranthene (207-08-9); Chrysene (218-01-9); Dibenz(a,h)anthracene (53-70-3); Fluoranthene (206-44-0); Fluorene (86-73-7); Indeno(1,2,3-cd)pyrene (193-39-5); 1-Methylnaphthalene (90-12-0); 2-Methylnaphthalene (91-57-6); Naphthalene (91-20-3); Phenanthrene (85-01-8); Pyrene (129-00-0)

Supplier: Restek

Contains 1 ml each of these mixtures: 524 calibration mix #7A, 524 calibration mix #7B. calibration mix #7A contains Acetone (67-64-1), 2-Butanone (MEK) (78-93-3), 2-Hexanone (591-78-6), 4-Methyl-2-pentanone (MIBK) (108-10-1), Tetrahydrofuran (109-99-9); calibration mix #7B contains Acrylonitrile (107-13-1)
Allyl chloride (3-chloropropene) (107-05-1), Ethyl methacrylate (97-63-2), Methyl acrylate (96-33-3), Methyl methacrylate (80-62-6), Nitrobenzene (98-95-3), Pentachloroethane (76-01-7).

Supplier: USP

(50 mg) (Calcium Formyltetrahydrofolate)

Supplier: Hach

For accuracy checks in detergents (surfactants) determinations.

Supplier: FIREFLYSCI, INC.

FireflySci's equivalent of the NIST SRM 930e calibration reference kit for testing photometric accuracy in the VIS range (400 to 700 nm). This kit comes with Firefly's Lifetime Warranty and never requires recalibration.

Supplier: USP

(200 mg)

Supplier: Hach

DPD chlorine, low range, 0 to 2 mg/L as Cl₂.

Supplier: Matrix Scientific

CAS #: 56-75-7
Molecular weight: 323.13
Melting point: 151°C
Molecular formula: C11H12Cl2N2O5
MDL #: MFCD00007360
Hazard code(s): Irritant

Supplier: Hach

Calibration solutions for Lico spectral colorimeter.

Supplier: Matrix Scientific

CAS #: 446-72-0
Molecular weight: 270.24
Molecular formula: C15H10O5
MDL #: MFCD00016952
Hazard code(s): Irritant

Supplier: Hach

TCMP - 2-chloro-6 (trichloromethyl) pyridine (N-Serve), coated on an inert substrate.

Supplier: USP

Particle count - Suspension - 25 mL: 15 µm Polystyrene microspheres in aqueous suspension
Particle count - Blank - 25 mL: Contains the aqueous phase without added particle

Supplier: Pickering Labs

This is an pesticide and herbicide analysis kit

Supplier: LUMINEX MS

MAGPIX® Calibration and Verification Kits, Luminex

Supplier: Invitrogen

This triple quadrupole calibration solution, extended mass range, is a mixture of 14 highly pure, ionizable components designed for both positive and negative ionization calibration of triple stage quadrupole instruments.