These test methods cover physical testing of quicklime, hydrated lime, and limestone. Plastic property testing shall include test methods for standard consistency and plasticity of lime putty, water retention of hydrated lime, and air entrainment. Soundness testing shall include test methods for autoclave expansion, and popping and pitting of hydrated lime. Application testing shall include test methods for slaking rate of quicklime, dry brightness of pulverized limestone, limestone grindability determination by the laboratory ball mill method, and settling rate of hydrated lime. Particle size analysis shall include test methods for residue and sieve analysis, fineness of pulverized quicklime and hydrated lime by air permeability, particle size of pulverized limestone, and dry screening of hydrated lime, pulverized quicklime, and limestone by air jet sieving. Density measurement shall include the following test methods: apparent loose density, and apparent packed density of hydrated lime, pulverized quicklime, and limestone; specific gravity of hydrated lime products; and wet sieve analysis of agricultural liming materials.

1.1 These test methods cover physical testing of quicklime and hydrated lime, and of limestone not otherwise covered in ASTM standards.2

Note 1: Quicklime and hydrated lime have a high affinity for moisture and carbon dioxide. Caution should be taken to protect both hydrated and quicklime during sampling, storage, and testing (see Practice C50).

1.2 The test methods appear in the following order:

Plastic Property Testing

Standard Consistency of Lime Putty

5

Plasticity of Lime Putty

6

Water Retention of Hydrated Lime

7

Air Entrainment

8

Soundness Testing

Autoclave Expansion of Hydrated and Hydraulic Lime

9

Popping and Pitting of Hydrated Lime

10

Application Testing

Slaking Rate of Quicklime

11

Dry Brightness of Pulverized Limestone

12

Limestone Grindability Determination by the Laboratory Ball Mill
  Method

13

Settling Rate of Hydrated Lime

14

Particle Size Analysis

Residue and Sieve Analysis

15

Sieve Analysis of Dry Limestone, Quicklime, and Hydrated Lime

16

Fineness of Pulverized Quicklime and Hydrated Lime by Air
  Permeability

17

Particle Size of Pulverized Limestone

18

Dry Screening of Hydrated Lime, Pulverized Quicklime, and
  Limestone by Air Jet Sieving

19

Wet Sieve Analysis of Agricultural Liming Materials

20

Density Measurement

Apparent Loose Density of Hydrated Lime, Pulverized Quicklime,
  and Limestone

21

Apparent Packed Density of Hydrated Lime, Pulverized Quicklime,
  and Limestone

22

Relative Density (Specific Gravity) of Hydrated Lime Products

23

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.