Globe Scientific Product Catalog

Technical Information

CLEANING LABORATORY PLASTICWARE Most laboratory plasticware is easily cleaned in warm water with a mild detergent and soft cloth or sponge. Avoid using abrasive cleaners or scouring pads which can result in surfaces becoming scratched. Slight contamination can be removed using a chemically neutral (pH7) cleaning agent. Heavy contamination can be removed using an alkaline (pH up to 12) cleaning agent. If using an automatic laboratory dishwasher to wash plastic volumetric ware, such as measuring cylinders, employ a wash temperature below 60ºC. High temperatures can affect volumetric accuracy. Ultrasonic baths may be used for cleaning plasticware. However do take care that the products do not directly touch the transducer membrane.

RESIN CHARACTERISTICS Material

Brittleness

Max. Use

Melting Point

Specific Gravity

Temp. -100°C -100°C -100°C

Temp. 120°C

Range

Transparency

Flexibility

Microwaveable

HDPE LDPE

High Density Polyethylene Low Density Polyethylene

125 to 138°C 85 to 125°C

Translucent Translucent Transparent Transparent Transparent Translucent Transparent

0.95 0.92 1.20 1.19

Rigid

No

80°C

Excellent

Yes

PC

Polycarbonate

135°C

Rigid Rigid Rigid Rigid Rigid

Marginal

PMMA

Polymethylmethacrylate

-20°C

85°C

85 to 105°C

No

PMP

Polymethylpentene

0°C 0°C

120°C 135°C

235°C

0.835

Yes Yes

PP PS

Polypropylene

160 to 176°C

0.9

Polystyrene

+20°C

90°C

1.05

No

STERILIZATION CHART Material

Withstands Autoclaving

Sterilization Method

EtO Gas

Dry Heat

Radiation

Disinfectants

HDPE LDPE

High Density Polyethylene Low Density Polyethylene

No No

Yes Yes Yes Yes Yes Yes No

No No No No

Yes Yes Yes Yes

Yes Yes

PC

Polycarbonate

Yes

Some Some

PMMA

Polymethylmethacrylate

No

PMP

Polymethylpentene

Yes Yes

Yes

No No

Yes Yes

PP PS

Polypropylene

No No

Polystyrene Some Note: Observe the tolerated temperature ranges of plastic when autoclaving laboratory plasticware. Remove any stoppers, fittings or caps from the plasticware prior to autoclaving. Plastic vessels should be autoclaved separately from their closures and other fittings. Autoclaving vessels with their closures in place can lead to deformation and destruction of the vessels. All statements are advisory only and imply no liability on the part of Globe Scientific. All statements relating to the resistances of laboratory plasticware to high temperatures, chemicals and sterilization are based on statements from raw material manufacturers. No Yes

FOOD GRADE PRODUCTS Products indicated with the food grade symbol comply with the following regulations regarding food contact:

TEMPERATURE RESISTANCE CHART Material

F O O D GRADE

Temperature Resistance Low High

HDPE LDPE

High Density Polyethylene Low Density Polyethylene

-40ºC -50ºC -40ºC -40ºC -40ºC

+120ºC

+90ºC +90ºC +90ºC

• National and European Directive CE 1935/2004, Food contact suitable • EU Directive 2002/72, relating to plastic materials and articles intended to come into contact with food. • US FDA CFR 170/199, food contact suitable • US FDA CFR 177.1520, olefin polymers • US FDA CFR 177.1550, PTFE food contact suitable

PE

Polyethylene

PMMA

Polymethylmethacrylate

POM

Polyoxymethylene

+110ºC +130ºC

PP PS

Polypropylene

0ºC*

Polystyrene

-10ºC -20ºC

+70ºC

PVC +80ºC *Note: There are special blends of PP that are used in products like our CryoClear ™ cryogenic vials that are able to withstand temperatures down to -196ºC. Polyvinylchloride

www.globescientific.com 173