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Part Number	Name	OD (mm)	Length (mm)	Graduation (mL)	Matched Set	Number in Matched Set	Scale Length (mm)	Case Qty	Case Price, USD	Quantity	Add to Cart
45315-50	APHA Nessler Color Comparisons Tubes	20	300	50	No	0	200-220	6	$131.60
45315-100	APHA Nessler Color Comparisons Tubes	24	375	100	No	0	275-295	6	$162.63
45315-50100	APHA Nessler Color Comparisons Tubes	24	375	50 & 100	No	0	275-295	6	$183.10
45315A-50	APHA Nessler Color Comparisons Tubes	20	300	50	Yes	6	200-220	6	$147.43
45315A-100	APHA Nessler Color Comparisons Tubes	24	375	100	Yes	6	275-295	6	$203.40
45315A-50100	APHA Nessler Color Comparisons Tubes	24	375	50 & 100	Yes	6	275-295	6	$211.04
45315B-50	APHA Nessler Color Comparisons Tubes	20	300	50	Yes	12	200-220	12	$336.82
45315B-100	APHA Nessler Color Comparisons Tubes	24	375	100	Yes	12	275-295	12	$434.79

Shadowless bottom of each tube transmits undistorted light

· Rings and legend are durable white ceramic enamel which correspond with specific volumes of liquid

· 45315 series is unmatched

· 45315A series is supplied in a matched set of 6

· 45315B series is supplied in a matched set of 12

· Graduated ring scale of any of the tubes within a set will not vary from that of any other tube within the set by more than 1.5 mm for the 50 mL and 2.0 mm for the 100 mL sizes

· The 50 mL size is specifically mentioned by the American Public Health Association in Standard Methods for the Examination of Water and Waste Water

· Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I Class A requirements