Source

Method

Value

(10⁻¹¹ m³·kg⁻¹·s⁻²)

Rel. stand.

uncert. ppm

Luther and Towler (1982)

Fiber torsion balance, dynamic mode

6.67248 (43)

64

Karagioz and Izmailov (1996)

Fiber torsion balance, dynamic mode

6.6729 (5)

75

Bagley and Luther (1997)

Fiber torsion balance, dynamic mode

6.67398 (70)

100

Gundlach and Merkowitz (2000, 2002)

Fiber torsion balance, dynamic compensation

6.674255 (92)

14

Quinn et al. (2001)

Strip torsion balance, compensation mode, static deflection

6.67559 (27)

40

Kleinevoss (2002); Kleinevoss et al. (2002)

Suspended body, displacement

6.67422 (98)

150

Armstrong and Fitzgerald (2003)

Strip torsion balance, compensation mode

6.67387 (27)

40

Hu, Guo, and Luo (2005)

Fiber torsion balance, dynamic mode

6.67228 (87)

130

Schlamminger et al. (2006)

Stationary body, weight change

6.67425 (12)

19

Luo et al. (2009); Tu et al. (2010)

Fiber torsion balance, dynamic mode

6.67349 (18)

27

Parks and Faller (2010)

Suspended body, displacement

6.67234 (14)

21