?????????????ú?ú??±ê×? GB/T 12007.5—1989 ?·???÷?????????¨·?·¨ ±?????·¨
Epoxide resins??Determination of density-Pyknometer method
1989-12-25·??? 1990-11-01??
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?·???÷?????????¨·?·¨ GB/T 12007.5??1989
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Epoxide resins-Determination of density-Pyknometer method
±?±ê×????§?????ú??±ê×?IS0 1675??1985???????????????÷??????±?????·¨???¨?????·??
1 ?÷????????????·??§
±?±ê×????¨????23 ??????±????????¨?????·???÷????????·?·¨??
±?±ê×????????????????????????????·???÷???????????¨??
2 ???í
??23 ???????¨????????±????????ù???÷??????????????±????????????????÷??????????
3 ???÷
3.1 ±?????????50?òl00 ml?????????????????????±??????????????50 mm??????????·?????±í???ó??
????V??ml ?±??????d??mm ????V??ml ?±??????d??mm 100??0.1 13??1 50??0.05 11??1
±???????23 ????????????????????????±????????ù???????ó???ò????×???????????????????
3.2 ???·???±?¤????????±???????????????????????±??????±?????????????????????ó??
3.3 ?ì????????0.1 mg??
3.4 ??????????±?????23??0.1 ????
3.5 ????×???????????200??600 ml??
4 ???ù
????150 g?÷??·???????×????????????? 40??5 ????
???·±???????????????????±?????????????
???§???ò???????????????÷±??????????ó×÷?????ù??
5 ??×÷???è
5.1 ??±?????????????105??5??????????????????????·???30 min?ó??????×??·??0.l mg??
5.2 ?????··???±????????????·?????????ù???????????????·?????±????????????±???????±?, ??????
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?ú???????à????1989-12-25?ú×? 1990-11-01??
GB/T 12007.5??1989
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5.3 ?????????ù??±?????·???23??0.1 ????????????????????60 min?ó?????????ù??????????????????
?±?????????¨????????????????
5.4 ????????±???????????????????????, ????????·???30 min?????????????ù??±???????×??·??
0.1mg??
6 ?á??????
6.1 ?????·???÷??????°???(1)??????
(1)
???? ??
23????23 ???±???ù????????g??ml??
m
1???????????ù??±???????23 ???±??±í????????g??
m
0??????±???????23 ???±??±í????????g??
??
a????23 ???±?????????????ü??????0.0012 g??ml??
V????23 ???±±???????????ml??
6.2 ±?????????°???(2)????:
(2)
???? V????±???????????ml;
m
2???????????ó???ò????×???±???????23???±??±í????????g??
??
e????23 ???±???ó???ò????×???????????????0.9976 g??ml??
?????????????¨?????????ù???????é?á???????????????ó????????
7 ???í??
???????é?á?????????ó??0.001 g??ml??
8 ???鱨??
???鱨????°ü?¨??????????
a. ×??÷°???±??ú??±ê×???
b. ×??÷???ù?????????????ú?????ú?ú??????
c. ???é?á????
d. ?????°?ì?á?????ò????
e. ???é???±??
f. ???é??????
a 0 1
23r r+-=Vm m9964 . 00 2
a0 2m m m m
V
e-=
--=
r r
GBT 12007.5-1989 环氧树脂密度的测定方法 比重瓶法.pdf
