| Besiyerleri ve Katkıları | Merck Kod |
| L(+)-Arabinose for Microbiology | 1.01492 |
| L(+)-Rhamnose Monohydrate for Microbiology | 1.04736 |
| Lactalbumin hydrolysate | 1.12523 |
| Lactobacillus Selective (Rogosa) Agar | 1.05413 |
| Lactose Broth | 1.07661 |
Lactose Broth, DEV | 1.10689 |
| Lactose Monohydrate for Microbiology | 1.07657 |
Lactose Peptone Broth, DEV | 1.10690 |
| Lauryl Sulfate Tryptose (LST) Broth | 1.10266 |
| Lauryl Sulfate Tryptose + MUG Broth (Fluorocult) | 1.12588 |
| LB- Broth (Lennox) | 1.00547 |
| LEB (Listeria Enrichment Broth) acc. to FDA/IDF-FIL | 1.10549 |
| LEB (Listeria Enrichment Broth) acc.to (FDA/IDF) | 1.11951 |
| LEB (Listeria Enrichment Broth) Supplement acc. to FDA/IDF | 1.11781 |
| Legionella BCYE A-Growth Supplement for Microbiology (2 Vials for 1 Liter of Culture Medium) | 1.10240 |
| Legionella Combi Pack (CYE Agar) | 1.10425 |
| Legionella CYE Agar Basis for Microbiology (2 Vials for 1 Liter of Culture Medium) | 1.10242 |
| Legionella GVPC Selective Supplement for Microbiology (2 Vials for 1 Liter of Culture Medium) | 1.10241 |
| Leifson (Desoxycholate Citrate) Agar | 1.02896 |
| Levine EMB Agar | 1.01342 |
| Listeria Enrichment Broth (LEB) acc. to FDA/IDF-FIL | 1.10549 |
| Listeria Enrichment Broth (LEB) acc.to (FDA) IDF | 1.11951 |
| Listeria Enrichment Broth (LEB) Supplement acc. to FDA/IDF | 1.11781 |
| Listeria Selective Enrichment Broth Base ; Fraser | 1.10398 |
| Listeria Selective Enrichment Supplement acc. to FDA-BAM 1992 | 1.11883 |
| Litmus Solution (Kubel-Tiemann's) for Microbiology | 1.05314 |
| Löwenstein - Jensen (TB) Medium | 1.05400 |
| L-PALCAM Listeria Selective Enrichment Broth Base acc. to VAN NETTEN et al. | 1.10823 |
| LST (Lauryl Sulfate Tryptose) Broth | 1.10266 |
| LST + MUG Broth (Fluorocult) | 1.12588 |
| Lysine Iron Agar | 1.11640 |