# ASTM International - ASTM D2131-97(2008)e1

## Standard Classification for Natural Muscovite Mica Splittings

historical
 Organization: ASTM International Publication Date: 1 May 2008 Status: historical Page Count: 3 ICS Code (Non-metalliferous minerals): 73.080
##### scope:

1.1 This specification covers the determination of muscovite mica splittings of standard commercial grades and specifies the maximum allowable physical defects for each grade. It is applicable to commercially available natural muscovite mica splittings regardless of the basic color of the mica or its source.

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard is very similar to ISO 6386. It is expected that materials would be classified identically using the criteria of either standard. The grades shown under "ASTM Grade No." in Table 1 and Table 2 are shown under "Old Grade No." in ISO 6386-1981.

##### abstract:

This specification covers the determination of muscovite mica splittings of standard commercial grades and specifies the maximum allowable physical defects for each grade. It is applicable to... View More

### Document History

May 15, 2016
Standard Classification for Natural Muscovite Mica Splittings
1.1 This specification covers the determination of muscovite mica splittings of standard commercial grades and specifies the maximum allowable physical defects for each grade. It is applicable to...
ASTM D2131-97(2008)e1
May 1, 2008
Standard Classification for Natural Muscovite Mica Splittings
1.1 This specification covers the determination of muscovite mica splittings of standard commercial grades and specifies the maximum allowable physical defects for each grade. It is applicable to...
March 10, 2003
Standard Specification for Natural Muscovite Mica Splittings
1.1 This specification covers the determination of muscovite mica splittings of standard commercial grades and specifies the maximum allowable physical defects for each grade. It is applicable to...
September 10, 1997
Standard Specification for Natural Muscovite Mica Splittings
1.1 This specification covers the determination of muscovite mica splittings of standard commercial grades and specifies the maximum allowable physical defects for each grade. It is applicable to...