Mesh Conversions

Mesh Sieve Designation	Sieve Opening Inches	mm
1	1	25.1
3/4	0.75	19
5/8	0.625	15.9
1/2	0.5	12.7
3/8	0.375	9.53
5/16	0.312	7.93
1/4	0.25	6.35
31/2	0.223	5.66
4	0.187	4.75
5	0.157	4
6	0.132	3.35
7	0.111	2.82
8	0.0937	2.38
10	0.0787	2
12	0.0661	1.68
14	0.055	1.41
16	0.0469	1.19
18	0.0394	1

Microns
20	0.0331	841
25	0.0278	706
30	0.0234	594
35	0.0197	500
40	0.0165	419
45	0.0139	353
50	0.0117	297
60	0.0098	249
70	0.0083	211
80	0.007	178
100	0.0059	150
120	0.0049	125
140	0.0041	104
170	0.0035	89
200	0.0029	74
230	0.0025	64
270	0.0021	53
325	0.0017	43
400	0.0015	38

About Spectrum Chemical Mfg. Corp.

Spectrum Chemical Mfg. Corp. leverages more than 50 years of expertise in sourcing, QC testing and repackaging of chemicals provided by other manufacturers to meet the needs of organizations in highly regulated industries. Spectrum Chemical is a certified women’s business enterprise (WBE).

Over 200 Spectrum Chemical employees work together across three worldwide locations. We offer more than 45,000 chemicals in laboratory, scale-up and bulk quantities, as well as more than 60,000 supplies, equipment, consumables and PPE. In all, we represent 250 manufacturers and serve 120 industries in 70 countries.

We conduct in-house QC testing by lot to safeguard quality at each of our facilities and provide extensive regulatory and scientific documentation to ensure compliance. We also offer change control, lot traceability and supply chain transparency to eliminate unpredictability. Our products are packaged and stored under cGMP in FDA-registered and inspected facilities.

With our diverse product portfolio and relentless focus on quality, we deliver security of supply to minimize risk and raw material variability, as well as offer highly personalized service and practical consultations to earn your trust and exceed expectations.

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About Spectrum Chemical Mfg. Corp.

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