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Buffer, pH 2.0 Colorless, 500mL
Item #:
VAN/BDH5010-500ML
Supplier #: BDH5010-500ML
Supplier #: BDH5010-500ML
VWR International BDH5010-500ML
Buffer Reference Standard pH 2.00 +- 0.03, Colorless, 500 mL
Buffer Reference Standard pH 2.00 +- 0.03, Colorless, 500 mL
Finntip 250 Universal Sterile 0.5-200uL
Item #:
TMS/1234W83
Supplier #: 1234W83
Supplier #: 1234W83
THERMO FISHER - MOLECULAR BIO
Mfg Item # : 9400263
Advanced molding process prevents flash around tip and a perfectly centered opening Smooth uniform surface Convenient packaging Color-coded Fully autoclavable Optimal design with a smooth, clear, hydrophobic surface ensures complete sample dispensing and minimal liquid retention. Ribbed top ensures a leakproof seal.
Mfg Item # : 9400263
Advanced molding process prevents flash around tip and a perfectly centered opening Smooth uniform surface Convenient packaging Color-coded Fully autoclavable Optimal design with a smooth, clear, hydrophobic surface ensures complete sample dispensing and minimal liquid retention. Ribbed top ensures a leakproof seal.
Ammonia CHEMets® Kit, 0-1 & 1-10
Item #:
TMS/9866E05
Supplier #: 9866E05
Supplier #: 9866E05
CHEMetrics Part No. K-1510
Low-level ammonia nitrogen may be naturally present in water as a result of the biological decay of plant and animal matter. Higher concentrations in surface waters can indicate contamination from waste treatment facilities, raw sewage, industrial effluents (particularly from petroleum refineries), or fertilizer runoff. Excessive ammonia concentrations are toxic to aquatic life. The Direct Nesslerization Method Reference: ASTM D 1426-08, Ammonia Nitrogen in Water, Test Method A. APHA Standard Methods, 18th ed., Method 4500-NH3 C - 1988. The test kits employing the well-established Nessler reagent* to determine ammonia concentrations are applicable to drinking water, clean surface water, good-quality nitrified wastewater effluent, and seawater. In some waters, calcium and magnesium concentrations can cause cloudiness of the reagent. Adding a few drops of stabilizer solution (Rochelle Salt) will prevent this cloudiness. References recommend distilling samples prior to analysis. Results are expressed as ppm (mg/L) ammonia-nitrogen, NH3-N. Shelf-life: although the Nessler reagent is stable, its high alkali content attacks the glass ampoule. The resulting precipitate interferes with color comparison. We recommend stocking quantities of CHEMets® and VACUettes® ampoules that will be used within five months. A two-month supply of Vacu-vials ampoules is suggested. Refrigeration will dramatically extend the shelf-life of these products. Kit comes in a plastic case and contains everything needed to perform 30 tests: Refill, Low and High Range Comparators, Stabilizer Solutions, 25 mL sample cup, 1.0 mL syringe, and instructions.
Low-level ammonia nitrogen may be naturally present in water as a result of the biological decay of plant and animal matter. Higher concentrations in surface waters can indicate contamination from waste treatment facilities, raw sewage, industrial effluents (particularly from petroleum refineries), or fertilizer runoff. Excessive ammonia concentrations are toxic to aquatic life. The Direct Nesslerization Method Reference: ASTM D 1426-08, Ammonia Nitrogen in Water, Test Method A. APHA Standard Methods, 18th ed., Method 4500-NH3 C - 1988. The test kits employing the well-established Nessler reagent* to determine ammonia concentrations are applicable to drinking water, clean surface water, good-quality nitrified wastewater effluent, and seawater. In some waters, calcium and magnesium concentrations can cause cloudiness of the reagent. Adding a few drops of stabilizer solution (Rochelle Salt) will prevent this cloudiness. References recommend distilling samples prior to analysis. Results are expressed as ppm (mg/L) ammonia-nitrogen, NH3-N. Shelf-life: although the Nessler reagent is stable, its high alkali content attacks the glass ampoule. The resulting precipitate interferes with color comparison. We recommend stocking quantities of CHEMets® and VACUettes® ampoules that will be used within five months. A two-month supply of Vacu-vials ampoules is suggested. Refrigeration will dramatically extend the shelf-life of these products. Kit comes in a plastic case and contains everything needed to perform 30 tests: Refill, Low and High Range Comparators, Stabilizer Solutions, 25 mL sample cup, 1.0 mL syringe, and instructions.
Weigh Dishes Aluminum Micro 0.35mL
Item #:
VAN/12577-062
Supplier #: 12577-062
Supplier #: 12577-062
VWR International 12577-062
VWR* Aluminum Micro Weighing Dishes These micro weigh boats are compatible with most commercially available analyzers and micro balances. Capacity: 0.35mL. Size: 13mm Diameter x 3.5mm H.
VWR* Aluminum Micro Weighing Dishes These micro weigh boats are compatible with most commercially available analyzers and micro balances. Capacity: 0.35mL. Size: 13mm Diameter x 3.5mm H.
Tubing Silicone Laboratory 0.250 x 0.375
Item #:
VAN/62999-461
Supplier #: 62999-461
Supplier #: 62999-461
DDP SPECIALTY ELECTRONIC MATERIALS
Mfg Item # : 2415631
SILASTIC* Laboratory Tubing Translucent, platinum-cured silicone tubing. Contains no peroxide cure by-products or phthalate plasticizers that could contaminate fluids during use. Meets USP Class VI and 3A Sanitary Standards. 6.4IDx9.5ODmm. Wall thickness: 1.6mm. Coil is 15.2m in length.
Exact Match: 62999-461
Mfg Item # : 2415631
SILASTIC* Laboratory Tubing Translucent, platinum-cured silicone tubing. Contains no peroxide cure by-products or phthalate plasticizers that could contaminate fluids during use. Meets USP Class VI and 3A Sanitary Standards. 6.4IDx9.5ODmm. Wall thickness: 1.6mm. Coil is 15.2m in length.
Exact Match: 62999-461
Sodium Hydroxide, Solution 0.01N, 1L
Item #:
VAN/BDH7620-1
Supplier #: BDH7620-1
Supplier #: BDH7620-1
VWR International BDH7620-1
Sodium Hydroxide, Solution 0.01N 1 L Made with deionized water. Suitable as a titrant.
Sodium Hydroxide, Solution 0.01N 1 L Made with deionized water. Suitable as a titrant.
Silicone Tubing 0.375 x 0.5 x 0.063 50ft
Item #:
VAN/62999-886
Supplier #: 62999-886
Supplier #: 62999-886
FREUDENBERG MEDICAL
Mfg Item # : 60-011-28
HelixMark* Platinum-Cured Silicone Tubing Biomedical/pharmaceutical grade. Made with SILASTIC* Q7-4750, 50 Shore A material. For standard applications. Meets USP Class VI and European Pharmacopoeia 3.1.9 biocompatibility requirements. I.D.xO.D.: 0.375x0.500". Walls: 0.063" thick. 50' coil.
Exact Match: 62999-886
Mfg Item # : 60-011-28
HelixMark* Platinum-Cured Silicone Tubing Biomedical/pharmaceutical grade. Made with SILASTIC* Q7-4750, 50 Shore A material. For standard applications. Meets USP Class VI and European Pharmacopoeia 3.1.9 biocompatibility requirements. I.D.xO.D.: 0.375x0.500". Walls: 0.063" thick. 50' coil.
Exact Match: 62999-886
Viscometers Routine Calibrated 0.015 c
Item #:
VAN/52946-781
Supplier #: 52946-781
Supplier #: 52946-781
Q GLASS II LLC
Mfg Item # : RT-100
Cannon-Fenske Routine Viscometer, Calibrated ASTM size: 100. Nominal constant: 0.015. Range: 3 to 15 centistokes. Viscosities measured with precision of -¦0.2%. Approximately 7mL sample necessary. Specs conform to ASTM Standard D-446. Supplied with certificate.
Exact Match: 52946-781
Mfg Item # : RT-100
Cannon-Fenske Routine Viscometer, Calibrated ASTM size: 100. Nominal constant: 0.015. Range: 3 to 15 centistokes. Viscosities measured with precision of -¦0.2%. Approximately 7mL sample necessary. Specs conform to ASTM Standard D-446. Supplied with certificate.
Exact Match: 52946-781
Chlorine Comparator (round), 0-1 ppm
Item #:
TMS/1206F25
Supplier #: 1206F25
Supplier #: 1206F25
Low Range-Increments: 0, 0.1, 0.2, 0.3, 0.4, 0.6, 0.8, 1.0ppm
MicroCentrifuge Tube Sterile 2.0ml
Item #:
VAN/10011-744
Supplier #: 10011-744
Supplier #: 10011-744
Corning
Mfg Item # : MCT-200-C-S
Presterilized Microtube Tube is clear, with conical base, 2.0mL. Frosted side surface for marking, visible graduation markings, thin membrane in cap for penetration by syringes. Certified RNase-, DNase-, and pyrogen-free.
Exact Match: 10011-744
Mfg Item # : MCT-200-C-S
Presterilized Microtube Tube is clear, with conical base, 2.0mL. Frosted side surface for marking, visible graduation markings, thin membrane in cap for penetration by syringes. Certified RNase-, DNase-, and pyrogen-free.
Exact Match: 10011-744
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