Mettler Toledo LJ16 Spécifications télécharger pdf (Page 181)

Chapter 14: Appendices

Appendix 12: Chemical Resistance Chart

(12/99) 14-61

Appendix 12: Chemical

Resistance Chart

The following chemical resistance chart is provided as a guide to help select materials

for weigh module system components and hardware. The information is reprinted

courtesy of Little Giant Pump Company.

These recommendations are based on information from material suppliers and careful

examination of available published information and are believed to be accurate.

However, since the resistance of metals, plastics, and elastomers can be affected by

concentration, temperature, presence of other chemicals, and other factors, this

information should be considered as a general guide rather than an unqualified

guarantee. Ultimately, the customer must determine the suitability of the materials used

in various environments.

All recommendations assume ambient temperatures unless otherwise noted. The ratings

for these materials are based on the chemical resistance only. Added consideration

must be given to material selection when the chemical is abrasive, viscous in nature, or

has a Specific Gravity greater than 1.1.

Note: Ceramagnet “A” is generically known as barium ferrite.

RATINGS—CHEMICAL EFFECT FOOTNOTES

A—No effect—Excellent 1. PVC—Satisfactory to 72°F

B—Minor effect—Good 2. Polypropylene—Satisfactory to 72°F

C—Moderate effect—Fair 3. Polypropylene—Satisfactory to 120°F

D—Severe effect—Not Recommended 4. Buna-N—Satisfactory for O-Rings

5. Polyacetal—Satisfactory to 72°F

6. Ceramag—Satisfactory to 72°F

Acetaldehyde

AAA-BAAD- -C-DDA-AADCBAAA-DBBDBCA

Acetamide -BA-------C-----B------A-AA-AADA

Acetate Solv.

ABABB- -ACBA-BDA- -A-BD-AA-DD-D--A

Acetic Acid, Glacia

-BAABAACCDA -CBACDDDBBAAA -DDBCBCB

Acetic Acid (20%) -BA--AA-C--AB-AA-D--AA-A-AC-C--B

Acetic Acid (80%) -BA--AA-C--AD-AB-D--B--A-AC-D--B

Acetic Acid -BABBAACCDCBABAADDCBAAAA-CC-CBCA

Acetic Anhydride B A A B B A A C D B DDDDADDDDAAAAA-DACBBCA

Acetone

AAABAAAAAAADDDADBADCBAAAADDBCADB

Acetyl Chloride -CA----D------A------A---A----AA

Acetylene

AAAAAB-B-AA-B- - -AA- -DAAA-AACBACA

Acrylonitrile AAC-BBBA-C------B-D-BAAA-CD-DD-A

Alcohols

Amyl AAA-CAAABCCAABACAABBBAAA-AADAACA

Benzyl -AA-BAAAC- - -DB-AAADDA-AA-AD-BBDA

Butyl AAA - BBABCCCAABAAAA-BBAAA-AADAAAA

Diacetone

-AA-AAAAC-A-D- -AAA- -D-AA-DD-DADA

Ethyl -AAABAAACAA-AC-ABABBA-AAAAABABAA

1 2 ... 176 177 178 179 180 181 182 183 184 185 186 ... 197 198

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