GMNA-9981306-1990.pdf
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1、- 9006379 0002755 259 I GENERAL MOTORS ENGINEERING STANDARDS I Materials and Processes - Paint I SOLVENT, KEROSENE 9981306 1 SCOPE. This specification covers the physical, chemi- cal and performance requirements of a slow evaporating aliphatic hydrocarbon solvent typically used for initial clean- up
2、 of oily type residues from metal surfaces before subsequent cleaning and surface treating, and removal of some types of cements and sealers from finished surfaces. It is also used as a diluent for greases and other materials, This solvent should not be used as a final wipe prior to prime and topcoa
3、t painting because of its slow drying characteristics and potential for leaving residues which may affect paint durability. 2 REFERENCED STANDARDS. ASTM 056 ASTM D 1078 ASTM D1012 ASTM D1298 3 REQUIREMENTS. Materials submitted for qualiflca- tion to this specification must meet all the physical, che
4、mical, and performance requirements. 3.1 Physical Requirements. 3.1.1 Distillation Range, C (ASTM D1078). Initial Roiling Point . . . . . . . . . . . . . . . . . . . . . . ., . . . . . . . . . 176 min 50% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5、 . . . 225 min End (Dry) Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280 max 3.1.2 FlashPomt.C(ASTMD56) . . . . . . . . . . . . . . . . . . . . . . 62min 3.1.3 Specific Gravity at 25 C (ASTM D1298). . . . . . 0.790 to 0.815 3.1.4 Aniline Point, C (ASTM D1012) . .
6、. . . . . . . . . . . . 55 to 75 3.2 Chemical Requirements. 3.2.1 Identification. Gas chromatographic and infrared analysis will be used to identify, characterize and qualify new materials for approval to this specification. All subsequent lots of the approved material must be compositionally identi
7、cal to the initial samples submitted for qualification. 3.2.2 Purity. Minimum 99% purity by gas chromatographic assay. The material must be free of any suspended particles, corrosion products, undissolved water, silicones or any other materials detnmental to the painting process. Product must be ess
8、entially colorless and not impan any color to coating materials. 3.83 Odor. The odor of the material shall be reviewed in comparison with current production materials. Any signifi- cant change in the matenal s characteristic odor must be evaluated in a GM approved laboratory and production trial. An
9、y change in formulation must be reassessed for effect on odor. 3.2.4 Hazardous Materials Documentation. The supplier must provide all required safety documentation per Section 5 upon initial submission. Toxicity and flammability will be assessed by the Hazardous Materials Committee of the using plan
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