You searched for: standards

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: USP

(250 mg) (Vitamin E Acetate)

Supplier: USP

(200 mg)

Supplier: USP

(500 mg)

Supplier: FIREFLYSCI, INC.

Firefly's upgraded and improved version of the NIST-2031 UV/VIS photometric accuracy kit.

Supplier: Hach

For accuracy checks in color determinations.

Supplier: LAB SCIENTIFIC BIOKEMIX, INC. MS

Used as a standard for all blotting.

Supplier: Electron Microscopy Sciences

This set consists of 14 rare earth compounds dispersed onto holey carbon films (3.05 mm, 400# copper grid).

Supplier: Hach

Used for determination of sulphite by burette iodometric titration.

Supplier: FIREFLYSCI, INC.

Firefly's equivalent of the NIST SRM 1930 calibration reference kit for testing photometric accuracy in the VIS range (400 to 700 nm).

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

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

Supplier: Matrix Scientific

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

Supplier: Hach

Calibration solutions for Lico spectral colorimeter.

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.