Buffers and Standards

Buffers and Standards

Hydrogen ion buffers comprising a mixture of a weak acid and its conjugate base or vice-versa and used to stabilize pH; also diluents, washing solutions, and standard-value solutions used for a broad array of scientific calibration purposes.

The buffers used to calibrate pH meters may be certified and/or traceable to the National Institute of Standards and Technology (NIST). These buffers may also be color-coded for easy identification:

  • Red: pH 4.0
  • Yellow: pH 7.0
  • Blue: pH 10.0

 

Filtered Search Results

Products from some of our suppliers do not display in filtered search results. Please clear all filters to see these products.

Filter By

Filter By

  • (10)
  • (2)
  • (1)
  • (2)
  • (4)
  • (1)
  • (1)
  • (258)
  • (22)
  • (5)
  • (17)
  • (3)
  • (135)
  • (3,478)
  • (45)
  • (66)
  • (1)
  • (2)
  • (43)
  • (56)
  • (1,862)
  • (18)
  • (2)
  • (2)
  • (1)
  • (35)
  • (51)
  • (27)
  • (3)
  • (2)
  • (1)
  • (9)
  • (80)
  • (10)
  • (2)
  • (1)
  • (1)
  • (57)
  • (3)
  • (4)
  • (668)
  • (2)
  • (4)
  • (1)
  • (538)
  • (1)
  • (31)
  • (2,265)
  • (14)
  • (4)
  • (12)
  • (3)
  • (66)
  • (487)
  • (1,939)
  • (46)
  • (87)
  • (21)
  • (2)
  • (9)
  • (64)
  • (135)
  • (73)
  • (28)
  • (441)
  • (394)
  • (50)
  • (2,166)
  • (1,694)
  • (1,511)
  • (692)
  • (606)
  • (507)
  • (433)
  • (423)
  • (348)
  • (291)
  • (271)
  • (267)
  • (197)
  • (149)
  • (125)
  • (116)
  • (98)
  • (90)
  • (90)
  • (88)
  • (81)
  • (67)
  • (62)
  • (59)
  • (58)
  • (57)
  • (51)
  • (49)
  • (47)
  • (45)
  • (45)
  • (39)
  • (36)
  • (34)
  • (30)
  • (29)
  • (28)
  • (28)
  • (26)
  • (25)
  • (24)
  • (23)
  • (22)
  • (22)
  • (22)
  • (20)
  • (18)
  • (18)
  • (17)
  • (16)
  • (16)
  • (15)
  • (15)
  • (14)
  • (14)
  • (13)
  • (13)
  • (13)
  • (13)
  • (12)
  • (12)
  • (12)
  • (11)
  • (11)
  • (10)
  • (10)
  • (10)
  • (10)
  • (10)
  • (10)
  • (9)
  • (9)
  • (9)
  • (9)
  • (9)
  • (9)
  • (9)
  • (9)
  • (8)
  • (8)
  • (8)
  • (8)
  • (8)
  • (7)
  • (7)
  • (7)
  • (7)
  • (6)
  • (6)
  • (6)
  • (6)
  • (6)
  • (6)
  • (6)
  • (6)
  • (6)
  • (6)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)