129
Charts & References
PMP (TPX)
LDPE HDPE
PP
PVC
PC ABS/PS SAN PMMA PTFE
POM
TEMPERATURE °C
20 50 20 50 20 50 20 50 20 50 20 50 20 50 20 50 20 50 20 50 20 50
Picric Acid
PPPPPPGGPPPPFFGG
G G
Potassium Hydroxide (30%) Potassium Permanganate
GGGGGGGGGGPPFFGGGGGGGG GGGGGFGGGFGGGFFFFPGGFF
Propylene Glycol
GGGGGGGGFFFFGGGG
G G G G
Pyridine
PPPPGGFPPPPPPPPPPPGGGF
Salicylic Acid Silver Nitrate
GGGGGGGGFFGFGFGF GFGGGGGGGFGGGGGF
G G P P G G F F
Sodium Hydroxide (50%) Sodium Hypochlorite (15%)
FFGGGGGGGGPPGFGFGPGGGG GFGFFPGGGGFFGFGGGGGG GGGGGGGGGFGFGGGFGGGG GFGFFFGFGFFFGFPPPPGGPP FFFFFGFFFPPPFFPPPPGGPP FPFGFFFFPPPPPPPPPPGGFF FPPPPPFFPPPPPPPPPPGGPP
Sulphuric Acid (20%) Sulphuric Acid (60%) Sulphuric Acid (98%) Tetrahydrofuran (THF)
Toluene
Trichloroacetic Acid Trichloroethylene
FPFPFFGGFPFPFPPP
G G
PPPPPPGPPPPPPPPPPPGGPP FPFPFPFPFFFPPPFPFPGGGG PPFPPPFPPPPPPPPPPPGGGG GGGGGGGGGGGGGGGGGGGGGF GGGGGGGGGGGGGGGGGGGGFP
Turpentine
Xylene
Zinc Chloride (10%) Zinc Sulphate (10%)
Physical Properties of Plastics
LDPE
HDPE
PP
PMP (TPX)
PC
PS
PMMA
PTFE
Max Usage Temp. °C Min Usage Temp. °C
80
120† -100
135
145
135
90
50
260
-50
-20‡
-180 Clear Rigid 0.83
-135 Clear Rigid
-40
-60
-200
Transparency
Translucent
Translucent
Translucent
Clear Rigid 1.05
Clear Rigid
Opaque
Flexability
Flexible
Rigid 0.95
Rigid
Rigid
Specific Gravity Microwavable Sterilization Autoclavable
0.92
0.9 Yes
1.2
1.2 No
2.2 Yes
Yes
No
Yes
Marginal
No
No
No
Yes Yes
Yes Yes Yes
Yes Yes
No
No No No
Yes Yes Yes Yes Yes
Gas
Yes
Yes
Yes
Dry Heat
No
No
No No
No
No
Radiation (Gamma)
Yes Yes
Yes Yes
No
Yes Yes
Yes
Yes
Disinfection
Yes
Yes
Some
Some
† Polymer may be malleable at temperatures above 80°C if the product is under structural stress ‡ Material may become brittle at low temperatures
Note: The information provided in the Chemical Resistance of Plastics chart is intended to provide guidelines for reference only. 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 Heathrow Scientific. Sterilization:
- Autocalving (121°C, 16 psi for 15 minutes)—Clean and rinse items with distilled water before autoclaving. (Always completely disengage thread before autoclaving.) Certain chemicals which have no appreciable effect on resins at room temperature may cause deterioration at autoclaving temperatures unless removed with distilled water beforehand. - Gas—Ethylene Oxide, formaldehyde, hydrogen peroxide.
- Dry heat (160°C, 120 minutes) - Disinfectants—Benzalkonium chloride, formalin/formaldehyde, ethanol, etc. - Radiation—gamma irradiation at 25 kGy (2.5 MRad) with unstabilized plastic.
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